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3 years agohw/loader: Restrict PC_ROM_* definitions to hw/i386/pc
Philippe Mathieu-Daudé [Fri, 17 Sep 2021 18:59:49 +0000 (20:59 +0200)]
hw/loader: Restrict PC_ROM_* definitions to hw/i386/pc

The PC_ROM_* definitions are only used by the PC machine,
and are irrelevant to the other architectures / machines.
Reduce their scope by moving them to hw/i386/pc.c.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210917185949.2244956-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agodocs/nvdimm: Update nvdimm option value in machine example
Pankaj Gupta [Thu, 23 Sep 2021 10:30:15 +0000 (12:30 +0200)]
docs/nvdimm: Update nvdimm option value in machine example

Update nvdimm option value in example command from "-machine pc,nvdimm"
to "-machine pc,nvdimm=on" as former complains with the below error:

"qemu-system-x86_64: -machine pc,nvdimm: Expected '=' after parameter 'nvdimm'"

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Message-Id: <20210923103015.135262-1-pankaj.gupta.linux@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agoMerge remote-tracking branch 'remotes/rth/tags/pull-tcg-20210921' into staging
Richard Henderson [Fri, 24 Sep 2021 17:21:18 +0000 (13:21 -0400)]
Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20210921' into staging

Move cpu_signal_handler declaration.
Restrict cpu_handle_halt to sysemu.
Make do_unaligned_access noreturn.
Misc tcg/mips cleanup
Misc tcg/sparc cleanup
Misc tcg/riscv cleanup

# gpg: Signature made Tue 21 Sep 2021 10:47:29 PM EDT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* remotes/rth/tags/pull-tcg-20210921:
  tcg/riscv: Remove add with zero on user-only memory access
  hw/core: Make do_unaligned_access noreturn
  tcg/sparc: Introduce tcg_out_mov_delay
  tcg/sparc: Drop inline markers
  tcg/mips: Drop special alignment for code_gen_buffer
  tcg/mips: Unset TCG_TARGET_HAS_direct_jump
  tcg/mips: Allow JAL to be out of range in tcg_out_bswap_subr
  tcg/mips: Drop inline markers
  accel/tcg: Restrict cpu_handle_halt() to sysemu
  include/exec: Move cpu_signal_handler declaration

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agoMerge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-6.2-pull-request...
Peter Maydell [Fri, 24 Sep 2021 14:05:12 +0000 (15:05 +0100)]
Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-6.2-pull-request' into staging

Pull request linux-user 20210924

Clean up siginfo_t handling for arm, aarch64

# gpg: Signature made Fri 24 Sep 2021 14:56:12 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-6.2-pull-request:
  linux-user/aarch64: Use force_sig_fault()
  linux-user/arm: Use force_sig_fault()
  linux-user: Provide new force_sig_fault() function
  linux-user: Zero out target_siginfo_t in force_sig()
  linux-user/arm: Use force_sig() to deliver fpa11 emulation SIGFPE
  linux-user/arm: Set siginfo_t addr field for SIGTRAP signals
  linux-user/aarch64: Set siginfo_t addr field for SIGTRAP signals

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agoMerge remote-tracking branch 'remotes/nvme/tags/nvme-next-pull-request' into staging
Peter Maydell [Fri, 24 Sep 2021 09:28:13 +0000 (10:28 +0100)]
Merge remote-tracking branch 'remotes/nvme/tags/nvme-next-pull-request' into staging

hw/nvme updates

# gpg: Signature made Fri 24 Sep 2021 07:44:23 BST
# gpg:                using RSA key 522833AA75E2DCE6A24766C04DE1AF316D4F0DE9
# gpg: Good signature from "Klaus Jensen <its@irrelevant.dk>" [unknown]
# gpg:                 aka "Klaus Jensen <k.jensen@samsung.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: DDCA 4D9C 9EF9 31CC 3468  4272 63D5 6FC5 E55D A838
#      Subkey fingerprint: 5228 33AA 75E2 DCE6 A247  66C0 4DE1 AF31 6D4F 0DE9

* remotes/nvme/tags/nvme-next-pull-request:
  hw/nvme: Return error for fused operations
  hw/nvme: fix verification of select field in namespace attachment
  hw/nvme: fix validation of ASQ and ACQ

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agohw/nvme: Return error for fused operations
Pankaj Raghav [Wed, 15 Sep 2021 15:43:30 +0000 (17:43 +0200)]
hw/nvme: Return error for fused operations

Currently, FUSED operations are not supported by QEMU. As per the 1.4 SPEC,
controller should abort the command that requested a fused operation with
an INVALID FIELD error code if they are not supported.

Changes from v1:
Added FUSE flag check also to the admin cmd processing as the FUSED
operations are mentioned in the general SQE section in the SPEC.

Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
3 years agohw/nvme: fix verification of select field in namespace attachment
Naveen Nagar [Mon, 23 Aug 2021 11:03:33 +0000 (16:33 +0530)]
hw/nvme: fix verification of select field in namespace attachment

Fix is added to check for reserved value in select field for
namespace attachment

CC: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Naveen Nagar <naveen.n1@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
3 years agohw/nvme: fix validation of ASQ and ACQ
Klaus Jensen [Mon, 23 Aug 2021 12:11:33 +0000 (14:11 +0200)]
hw/nvme: fix validation of ASQ and ACQ

Address 0x0 is a valid address. Fix the admin submission and completion
queue address validation to not error out on this.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
3 years agolinux-user/aarch64: Use force_sig_fault()
Peter Maydell [Fri, 13 Aug 2021 13:18:09 +0000 (14:18 +0100)]
linux-user/aarch64: Use force_sig_fault()

Use the new force_sig_fault() function instead of setting up
a target_siginfo_t and calling queue_signal().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-8-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agolinux-user/arm: Use force_sig_fault()
Peter Maydell [Fri, 13 Aug 2021 13:18:08 +0000 (14:18 +0100)]
linux-user/arm: Use force_sig_fault()

Use the new force_sig_fault() function instead of setting up
a target_siginfo_t and calling queue_signal().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-7-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agolinux-user: Provide new force_sig_fault() function
Peter Maydell [Fri, 13 Aug 2021 13:18:07 +0000 (14:18 +0100)]
linux-user: Provide new force_sig_fault() function

In many places in the linux-user code we need to queue a signal for
the guest using the QEMU_SI_FAULT si_type.  This requires that the
caller sets up and passes us a target_siginfo, including setting the
appropriate part of the _sifields union for the si_type. In a number
of places the code forgets to set the _sifields union field.

Provide a new force_sig_fault() function, which does the same thing
as the Linux kernel function of that name -- it takes the signal
number, the si_code value and the address to use in
_sifields._sigfault, and assembles the target_siginfo itself.  This
makes the callsites simpler and means it's harder to forget to pass
in an address value.

We follow force_sig() and the kernel's force_sig_fault() in not
requiring the caller to pass in the CPU pointer but always acting
on the CPU of the current thread.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-6-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agolinux-user: Zero out target_siginfo_t in force_sig()
Peter Maydell [Fri, 13 Aug 2021 13:18:06 +0000 (14:18 +0100)]
linux-user: Zero out target_siginfo_t in force_sig()

The target_siginfo_t we populate in force_sig() will eventually
get copied onto the target's stack. Zero it out so that any extra
padding in the sifields union is consistently zero when the guest
sees it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-5-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agolinux-user/arm: Use force_sig() to deliver fpa11 emulation SIGFPE
Peter Maydell [Fri, 13 Aug 2021 13:18:05 +0000 (14:18 +0100)]
linux-user/arm: Use force_sig() to deliver fpa11 emulation SIGFPE

In the Arm target code, when the fpa11 emulation code tells us we
need to send the guest a SIGFPE, we do this with queue_signal(), but
we are using the wrong si_type, and we aren't setting the _sifields
union members corresponding to either the si_type we are using or the
si_type we should be using.

As the existing comment notes, the kernel code for this calls the old
send_sig() function to deliver the signal.  This eventually results
in the kernel's signal handling code fabricating a siginfo_t with a
SI_KERNEL code and a zero pid and uid.  For QEMU this means we need
to use QEMU_SI_KILL.  We already have a function for that:
force_sig() sets up the whole target_siginfo_t the way we need it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-4-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agolinux-user/arm: Set siginfo_t addr field for SIGTRAP signals
Peter Maydell [Fri, 13 Aug 2021 13:18:04 +0000 (14:18 +0100)]
linux-user/arm: Set siginfo_t addr field for SIGTRAP signals

When generating a TRAP_BRKPT SIGTRAP, set the siginfo_t addr field
to the PC where the breakpoint/singlestep trap occurred; this is
what the kernel does for this signal for this architecture.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-3-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agolinux-user/aarch64: Set siginfo_t addr field for SIGTRAP signals
Peter Maydell [Fri, 13 Aug 2021 13:18:03 +0000 (14:18 +0100)]
linux-user/aarch64: Set siginfo_t addr field for SIGTRAP signals

When generating a TRAP_BRKPT SIGTRAP, set the siginfo_t addr field
to the PC where the breakpoint/singlestep trap occurred; this is
what the kernel does for this signal for this architecture.

Fixes: Coverity 1459154
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-2-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agotcg/riscv: Remove add with zero on user-only memory access
Richard Henderson [Thu, 5 Aug 2021 17:38:14 +0000 (07:38 -1000)]
tcg/riscv: Remove add with zero on user-only memory access

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agohw/core: Make do_unaligned_access noreturn
Richard Henderson [Thu, 29 Jul 2021 20:45:10 +0000 (10:45 -1000)]
hw/core: Make do_unaligned_access noreturn

While we may have had some thought of allowing system-mode
to return from this hook, we have no guests that require this.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agotcg/sparc: Introduce tcg_out_mov_delay
Richard Henderson [Wed, 4 Aug 2021 22:15:53 +0000 (01:15 +0300)]
tcg/sparc: Introduce tcg_out_mov_delay

This version of tcg_out_mov is emits a nop to fill the
delay slot if the move is not required.

The only current use, for INDEX_op_goto_ptr, will always
require the move but properly documents the delay slot.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agotcg/sparc: Drop inline markers
Richard Henderson [Wed, 4 Aug 2021 22:09:41 +0000 (01:09 +0300)]
tcg/sparc: Drop inline markers

Let the compiler decide about inlining.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agotcg/mips: Drop special alignment for code_gen_buffer
Richard Henderson [Fri, 6 Aug 2021 18:20:16 +0000 (08:20 -1000)]
tcg/mips: Drop special alignment for code_gen_buffer

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agotcg/mips: Unset TCG_TARGET_HAS_direct_jump
Richard Henderson [Fri, 6 Aug 2021 17:49:03 +0000 (07:49 -1000)]
tcg/mips: Unset TCG_TARGET_HAS_direct_jump

Only use indirect jumps.  Finish weaning away from the
unique alignment requirements for code_gen_buffer.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agotcg/mips: Allow JAL to be out of range in tcg_out_bswap_subr
Richard Henderson [Fri, 6 Aug 2021 18:03:45 +0000 (08:03 -1000)]
tcg/mips: Allow JAL to be out of range in tcg_out_bswap_subr

Weaning off of unique alignment requirements, so allow JAL
to not reach the target.  TCG_TMP1 is always available for
use as a scratch because it is clobbered by the subroutine
being called.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agotcg/mips: Drop inline markers
Richard Henderson [Fri, 6 Aug 2021 17:04:00 +0000 (07:04 -1000)]
tcg/mips: Drop inline markers

Let the compiler decide about inlining.
Remove tcg_out_ext8s and tcg_out_ext16s as unused.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agoaccel/tcg: Restrict cpu_handle_halt() to sysemu
Philippe Mathieu-Daudé [Sun, 12 Sep 2021 17:27:02 +0000 (19:27 +0200)]
accel/tcg: Restrict cpu_handle_halt() to sysemu

Commit 372579427a5 ("tcg: enable thread-per-vCPU") added the following
comment describing EXCP_HALTED in qemu_tcg_cpu_thread_fn():

    case EXCP_HALTED:
         /* during start-up the vCPU is reset and the thread is
          * kicked several times. If we don't ensure we go back
          * to sleep in the halted state we won't cleanly
          * start-up when the vCPU is enabled.
          *
          * cpu->halted should ensure we sleep in wait_io_event
          */
         g_assert(cpu->halted);
         break;

qemu_wait_io_event() is sysemu-specific, so we can restrict the
cpu_handle_halt() call in cpu_exec() to system emulation.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210912172731.789788-2-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agoinclude/exec: Move cpu_signal_handler declaration
Richard Henderson [Tue, 3 Aug 2021 15:31:43 +0000 (05:31 -1000)]
include/exec: Move cpu_signal_handler declaration

There is nothing target specific about this.  The implementation
is host specific, but the declaration is 100% common.

Reviewed-By: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agoMerge remote-tracking branch 'remotes/alistair23/tags/pull-riscv-to-apply-20210921...
Richard Henderson [Tue, 21 Sep 2021 17:57:48 +0000 (10:57 -0700)]
Merge remote-tracking branch 'remotes/alistair23/tags/pull-riscv-to-apply-20210921' into staging

Second RISC-V PR for QEMU 6.2

 - ePMP CSR address updates
 - Convert internal interrupts to use QEMU GPIO lines
 - SiFive PWM support
 - Support for RISC-V ACLINT
 - SiFive PDMA fixes
 - Update to u-boot instructions for sifive_u
 - mstatus.SD bug fix for hypervisor extensions
 - OpenTitan fix for USB dev address

# gpg: Signature made Mon 20 Sep 2021 11:52:26 PM PDT
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8  CE8F 21E1 0D29 DF97 7054

* remotes/alistair23/tags/pull-riscv-to-apply-20210921: (21 commits)
  hw/riscv: opentitan: Correct the USB Dev address
  target/riscv: csr: Rename HCOUNTEREN_CY and friends
  target/riscv: Backup/restore mstatus.SD bit when virtual register swapped
  docs/system/riscv: sifive_u: Update U-Boot instructions
  hw/dma: sifive_pdma: don't set Control.error if 0 bytes to transfer
  hw/dma: sifive_pdma: allow non-multiple transaction size transactions
  hw/dma: sifive_pdma: claim bit must be set before DMA transactions
  hw/dma: sifive_pdma: reset Next* registers when Control.claim is set
  hw/riscv: virt: Add optional ACLINT support to virt machine
  hw/riscv: virt: Re-factor FDT generation
  hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT
  hw/intc: Rename sifive_clint sources to riscv_aclint sources
  sifive_u: Connect the SiFive PWM device
  hw/timer: Add SiFive PWM support
  hw/intc: ibex_timer: Convert the timer to use RISC-V CPU GPIO lines
  hw/intc: sifive_plic: Convert the PLIC to use RISC-V CPU GPIO lines
  hw/intc: ibex_plic: Convert the PLIC to use RISC-V CPU GPIO lines
  hw/intc: sifive_clint: Use RISC-V CPU GPIO lines
  target/riscv: Expose interrupt pending bits as GPIO lines
  target/riscv: Fix satp write
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210921' into...
Peter Maydell [Tue, 21 Sep 2021 15:32:19 +0000 (16:32 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210921' into staging

target-arm queue:
 * Optimize codegen for MVE when predication not active
 * hvf: Add Apple Silicon support
 * hw/intc: Set GIC maintenance interrupt level to only 0 or 1
 * Fix mishandling of MVE FPSCR.LTPSIZE reset for usermode emulator
 * elf2dmp: Fix coverity nits

# gpg: Signature made Tue 21 Sep 2021 16:31:17 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20210921: (27 commits)
  target/arm: Optimize MVE 1op-immediate insns
  target/arm: Optimize MVE VSLI and VSRI
  target/arm: Optimize MVE VSHLL and VMOVL
  target/arm: Optimize MVE VSHL, VSHR immediate forms
  target/arm: Optimize MVE VMVN
  target/arm: Optimize MVE VDUP
  target/arm: Optimize MVE VNEG, VABS
  target/arm: Optimize MVE arithmetic ops
  target/arm: Optimize MVE logic ops
  target/arm: Add TB flag for "MVE insns not predicated"
  target/arm: Enforce that FPDSCR.LTPSIZE is 4 on inbound migration
  target/arm: Avoid goto_tb if we're trying to exit to the main loop
  hvf: arm: Add rudimentary PMC support
  arm: Add Hypervisor.framework build target
  hvf: arm: Implement PSCI handling
  hvf: arm: Implement -cpu host
  arm/hvf: Add a WFI handler
  hvf: Add Apple Silicon support
  hvf: Introduce hvf_arch_init() callback
  hvf: Add execute to dirty log permission bitmap
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agotarget/arm: Optimize MVE 1op-immediate insns
Peter Maydell [Mon, 13 Sep 2021 09:54:40 +0000 (10:54 +0100)]
target/arm: Optimize MVE 1op-immediate insns

Optimize the MVE 1op-immediate insns (VORR, VBIC, VMOV) to
use TCG vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-13-peter.maydell@linaro.org

3 years agotarget/arm: Optimize MVE VSLI and VSRI
Peter Maydell [Mon, 13 Sep 2021 09:54:39 +0000 (10:54 +0100)]
target/arm: Optimize MVE VSLI and VSRI

Optimize the MVE shift-and-insert insns by using TCG
vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-12-peter.maydell@linaro.org

3 years agotarget/arm: Optimize MVE VSHLL and VMOVL
Peter Maydell [Mon, 13 Sep 2021 09:54:38 +0000 (10:54 +0100)]
target/arm: Optimize MVE VSHLL and VMOVL

Optimize the MVE VSHLL insns by using TCG vector ops when possible.
This includes the VMOVL insn, which we handle in mve.decode as "VSHLL
with zero shift count".

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-11-peter.maydell@linaro.org

3 years agotarget/arm: Optimize MVE VSHL, VSHR immediate forms
Peter Maydell [Mon, 13 Sep 2021 09:54:37 +0000 (10:54 +0100)]
target/arm: Optimize MVE VSHL, VSHR immediate forms

Optimize the MVE VSHL and VSHR immediate forms by using TCG vector
ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-10-peter.maydell@linaro.org

3 years agotarget/arm: Optimize MVE VMVN
Peter Maydell [Mon, 13 Sep 2021 09:54:36 +0000 (10:54 +0100)]
target/arm: Optimize MVE VMVN

Optimize the MVE VMVN insn by using TCG vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-9-peter.maydell@linaro.org

3 years agotarget/arm: Optimize MVE VDUP
Peter Maydell [Mon, 13 Sep 2021 09:54:35 +0000 (10:54 +0100)]
target/arm: Optimize MVE VDUP

Optimize the MVE VDUP insns by using TCG vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-8-peter.maydell@linaro.org

3 years agotarget/arm: Optimize MVE VNEG, VABS
Peter Maydell [Mon, 13 Sep 2021 09:54:34 +0000 (10:54 +0100)]
target/arm: Optimize MVE VNEG, VABS

Optimize the MVE VNEG and VABS insns by using TCG
vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-7-peter.maydell@linaro.org

3 years agotarget/arm: Optimize MVE arithmetic ops
Peter Maydell [Mon, 13 Sep 2021 09:54:33 +0000 (10:54 +0100)]
target/arm: Optimize MVE arithmetic ops

Optimize MVE arithmetic ops when we have a TCG
vector operation we can use.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-6-peter.maydell@linaro.org

3 years agotarget/arm: Optimize MVE logic ops
Peter Maydell [Mon, 13 Sep 2021 09:54:32 +0000 (10:54 +0100)]
target/arm: Optimize MVE logic ops

When not predicating, implement the MVE bitwise logical insns
directly using TCG vector operations.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-5-peter.maydell@linaro.org

3 years agotarget/arm: Add TB flag for "MVE insns not predicated"
Peter Maydell [Mon, 13 Sep 2021 09:54:31 +0000 (10:54 +0100)]
target/arm: Add TB flag for "MVE insns not predicated"

Our current codegen for MVE always calls out to helper functions,
because some byte lanes might be predicated.  The common case is that
in fact there is no predication active and all lanes should be
updated together, so we can produce better code by detecting that and
using the TCG generic vector infrastructure.

Add a TB flag that is set when we can guarantee that there is no
active MVE predication, and a bool in the DisasContext.  Subsequent
patches will use this flag to generate improved code for some
instructions.

In most cases when the predication state changes we simply end the TB
after that instruction.  For the code called from vfp_access_check()
that handles lazy state preservation and creating a new FP context,
we can usually avoid having to try to end the TB because luckily the
new value of the flag following the register changes in those
sequences doesn't depend on any runtime decisions.  We do have to end
the TB if the guest has enabled lazy FP state preservation but not
automatic state preservation, but this is an odd corner case that is
not going to be common in real-world code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-4-peter.maydell@linaro.org

3 years agotarget/arm: Enforce that FPDSCR.LTPSIZE is 4 on inbound migration
Peter Maydell [Mon, 13 Sep 2021 09:54:30 +0000 (10:54 +0100)]
target/arm: Enforce that FPDSCR.LTPSIZE is 4 on inbound migration

Architecturally, for an M-profile CPU with the LOB feature the
LTPSIZE field in FPDSCR is always constant 4.  QEMU's implementation
enforces this everywhere, except that we don't check that it is true
in incoming migration data.

We're going to add come in gen_update_fp_context() which relies on
the "always 4" property.  Since this is TCG-only, we don't actually
need to be robust to bogus incoming migration data, and the effect of
it being wrong would be wrong code generation rather than a QEMU
crash; but if it did ever happen somehow it would be very difficult
to track down the cause.  Add a check so that we fail the inbound
migration if the FPDSCR.LTPSIZE value is incorrect.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-3-peter.maydell@linaro.org

3 years agotarget/arm: Avoid goto_tb if we're trying to exit to the main loop
Peter Maydell [Mon, 13 Sep 2021 09:54:29 +0000 (10:54 +0100)]
target/arm: Avoid goto_tb if we're trying to exit to the main loop

Currently gen_jmp_tb() assumes that if it is called then the jump it
is handling is the only reason that we might be trying to end the TB,
so it will use goto_tb if it can.  This is usually the case: mostly
"we did something that means we must end the TB" happens on a
non-branch instruction.  However, there are cases where we decide
early in handling an instruction that we need to end the TB and
return to the main loop, and then the insn is a complex one that
involves gen_jmp_tb().  For instance, for M-profile FP instructions,
in gen_preserve_fp_state() which is called from vfp_access_check() we
want to force an exit to the main loop if lazy state preservation is
active and we are in icount mode.

Make gen_jmp_tb() look at the current value of is_jmp, and only use
goto_tb if the previous is_jmp was DISAS_NEXT or DISAS_TOO_MANY.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-2-peter.maydell@linaro.org

3 years agohvf: arm: Add rudimentary PMC support
Alexander Graf [Thu, 16 Sep 2021 15:54:03 +0000 (17:54 +0200)]
hvf: arm: Add rudimentary PMC support

We can expose cycle counters on the PMU easily. To be as compatible as
possible, let's do so, but make sure we don't expose any other architectural
counters that we can not model yet.

This allows OSs to work that require PMU support.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-10-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agoarm: Add Hypervisor.framework build target
Alexander Graf [Thu, 16 Sep 2021 15:54:02 +0000 (17:54 +0200)]
arm: Add Hypervisor.framework build target

Now that we have all logic in place that we need to handle Hypervisor.framework
on Apple Silicon systems, let's add CONFIG_HVF for aarch64 as well so that we
can build it.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Tested-by: Roman Bolshakov <r.bolshakov@yadro.com> (x86 only)
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-id: 20210916155404.86958-9-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agohvf: arm: Implement PSCI handling
Alexander Graf [Thu, 16 Sep 2021 15:54:01 +0000 (17:54 +0200)]
hvf: arm: Implement PSCI handling

We need to handle PSCI calls. Most of the TCG code works for us,
but we can simplify it to only handle aa64 mode and we need to
handle SUSPEND differently.

This patch takes the TCG code as template and duplicates it in HVF.

To tell the guest that we support PSCI 0.2 now, update the check in
arm_cpu_initfn() as well.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-8-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agohvf: arm: Implement -cpu host
Peter Maydell [Mon, 20 Sep 2021 09:21:08 +0000 (10:21 +0100)]
hvf: arm: Implement -cpu host

Now that we have working system register sync, we push more target CPU
properties into the virtual machine. That might be useful in some
situations, but is not the typical case that users want.

So let's add a -cpu host option that allows them to explicitly pass all
CPU capabilities of their host CPU into the guest.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Acked-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-7-agraf@csgraf.de
[PMM: drop unnecessary #include line from .h file]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agoarm/hvf: Add a WFI handler
Peter Collingbourne [Thu, 16 Sep 2021 15:53:59 +0000 (17:53 +0200)]
arm/hvf: Add a WFI handler

Sleep on WFI until the VTIMER is due but allow ourselves to be woken
up on IPI.

In this implementation IPI is blocked on the CPU thread at startup and
pselect() is used to atomically unblock the signal and begin sleeping.
The signal is sent unconditionally so there's no need to worry about
races between actually sleeping and the "we think we're sleeping"
state. It may lead to an extra wakeup but that's better than missing
it entirely.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Signed-off-by: Alexander Graf <agraf@csgraf.de>
Acked-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-id: 20210916155404.86958-6-agraf@csgraf.de
[agraf: Remove unused 'set' variable, always advance PC on WFX trap,
        support vm stop / continue operations and cntv offsets]
Signed-off-by: Alexander Graf <agraf@csgraf.de>
Acked-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agoMerge remote-tracking branch 'remotes/legoater/tags/pull-aspeed-20210920' into staging
Peter Maydell [Tue, 21 Sep 2021 12:58:09 +0000 (13:58 +0100)]
Merge remote-tracking branch 'remotes/legoater/tags/pull-aspeed-20210920' into staging

Aspeed patches :

* MAC enablement fixes (Guenter)
* Watchdog  and pca9552 fixes (Andrew)
* GPIO fixes (Joel)
* AST2600A3 SoC and DPS310 models (Joel)
* New Fuji BMC machine (Peter)

# gpg: Signature made Mon 20 Sep 2021 07:51:23 BST
# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@kaod.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* remotes/legoater/tags/pull-aspeed-20210920:
  hw/arm/aspeed: Add Fuji machine type
  hw/arm/aspeed: Allow machine to set UART default
  hw/arm/aspeed: Initialize AST2600 UART clock selection registers
  arm/aspeed: Add DPS310 to Witherspoon and Rainier
  hw/misc: Add Infineon DPS310 sensor model
  aspeed: Emulate the AST2600A3
  arm/aspeed: rainier: Add i2c eeproms and muxes
  misc/pca9552: Fix LED status register indexing in pca955x_get_led()
  hw: aspeed_gpio: Clarify GPIO controller name
  hw: aspeed_gpio: Simplify 1.8V defines
  watchdog: aspeed: Fix sequential control writes
  watchdog: aspeed: Sanitize control register values
  hw: arm: aspeed: Enable mac0/1 instead of mac1/2 for g220a
  hw: arm: aspeed: Enable eth0 interface for aspeed-ast2600-evb

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agohw/riscv: opentitan: Correct the USB Dev address
Alistair Francis [Thu, 16 Sep 2021 04:37:38 +0000 (14:37 +1000)]
hw/riscv: opentitan: Correct the USB Dev address

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: d6cb4dfe75a2f536f217d7075b750ece3acb1535.1631767043.git.alistair.francis@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agotarget/riscv: csr: Rename HCOUNTEREN_CY and friends
Bin Meng [Wed, 15 Sep 2021 08:46:01 +0000 (16:46 +0800)]
target/riscv: csr: Rename HCOUNTEREN_CY and friends

The macro name HCOUNTEREN_CY suggests it is for CSR HCOUNTEREN, but
in fact it applies to M-mode and S-mode CSR too. Rename these macros
to have the COUNTEREN_ prefix.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210915084601.24304-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agotarget/riscv: Backup/restore mstatus.SD bit when virtual register swapped
Frank Chang [Tue, 14 Sep 2021 01:37:15 +0000 (09:37 +0800)]
target/riscv: Backup/restore mstatus.SD bit when virtual register swapped

When virtual registers are swapped, mstatus.SD bit should also be
backed up/restored. Otherwise, mstatus.SD bit will be incorrectly kept
across the world switches.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Vincent Chen <vincent.chen@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210914013717.881430-1-frank.chang@sifive.com
[ Changes by AF:
 - Convert variable to a uint64_t to fix clang error
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agodocs/system/riscv: sifive_u: Update U-Boot instructions
Bin Meng [Sat, 11 Sep 2021 15:34:31 +0000 (23:34 +0800)]
docs/system/riscv: sifive_u: Update U-Boot instructions

In U-Boot v2021.07 release, there were 2 major changes for the
SiFive Unleashed board support:

- Board config name was changed from sifive_fu540_defconfig to
  sifive_unleashed_defconfig
- The generic binman tool was used to generate the FIT image
  (combination of U-Boot proper, DTB and OpenSBI firmware)

which make the existing U-Boot instructions out of date.

Update the doc with latest instructions.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210911153431.10362-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agohw/dma: sifive_pdma: don't set Control.error if 0 bytes to transfer
Frank Chang [Sun, 12 Sep 2021 13:05:48 +0000 (21:05 +0800)]
hw/dma: sifive_pdma: don't set Control.error if 0 bytes to transfer

Real PDMA doesn't set Control.error if there are 0 bytes to be
transferred. The DMA transfer is still success.

The following result is PDMA tested in U-Boot on Unmatched board:

=> mw.l 0x3000000 0x0                      <= Disclaim channel 0
=> mw.l 0x3000000 0x1                      <= Claim channel 0
=> mw.l 0x3000004 0x55000000               <= wsize = rsize = 5 (2^5 = 32 bytes)
=> mw.q 0x3000008 0x0                      <= NextBytes = 0
=> mw.q 0x3000010 0x84000000               <= NextDestination = 0x84000000
=> mw.q 0x3000018 0x84001000               <= NextSource = 0x84001000
=> mw.l 0x84000000 0x87654321              <= Fill test data to dst
=> mw.l 0x84001000 0x12345678              <= Fill test data to src
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
8400000087654321                               !Ce.
8400100012345678                               xV4.
=> md.l 0x3000000 8                        <= Dump PDMA status
0300000000000001 55000000 00000000 00000000    .......U........
0300001084000000 00000000 84001000 00000000    ................
=> mw.l 0x3000000 0x3                      <= Set channel 0 run and claim bits
=> md.l 0x3000000 8                        <= Dump PDMA status
0300000040000001 55000000 00000000 00000000    ...@...U........
0300001084000000 00000000 84001000 00000000    ................
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
8400000087654321                               !Ce.
8400100012345678                               xV4.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Tested-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210912130553.179501-5-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agohw/dma: sifive_pdma: allow non-multiple transaction size transactions
Green Wan [Sun, 12 Sep 2021 13:05:47 +0000 (21:05 +0800)]
hw/dma: sifive_pdma: allow non-multiple transaction size transactions

Real PDMA is able to deal with non-multiple transaction size transactions.

The following result is PDMA tested in U-Boot on Unmatched board:

=> mw.l 0x3000000 0x0                      <= Disclaim channel 0
=> mw.l 0x3000000 0x1                      <= Claim channel 0
=> mw.l 0x3000004 0x11000000               <= wsize = rsize = 1 (2^1 = 2 bytes)
=> mw.q 0x3000008 0x3                      <= NextBytes = 3
=> mw.q 0x3000010 0x84000000               <= NextDestination = 0x84000000
=> mw.q 0x3000018 0x84001000               <= NextSource = 0x84001000
=> mw.l 0x84000000 0x87654321              <= Fill test data to dst
=> mw.l 0x84001000 0x12345678              <= Fill test data to src
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
8400000087654321                               !Ce.
8400100012345678                               xV4.
=> md.l 0x3000000 8                        <= Dump PDMA status
0300000000000001 11000000 00000003 00000000    ................
0300001084000000 00000000 84001000 00000000    ................
=> mw.l 0x3000000 0x3                      <= Set channel 0 run and claim bits
=> md.l 0x3000000 8                        <= Dump PDMA status
0300000040000001 11000000 00000003 00000000    ...@............
0300001084000000 00000000 84001000 00000000    ................
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
8400000087345678                               xV4.
8400100012345678                               xV4.

Signed-off-by: Green Wan <green.wan@sifive.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Tested-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20210912130553.179501-4-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agohw/dma: sifive_pdma: claim bit must be set before DMA transactions
Frank Chang [Sun, 12 Sep 2021 13:05:46 +0000 (21:05 +0800)]
hw/dma: sifive_pdma: claim bit must be set before DMA transactions

Real PDMA must have Control.claim bit to be set before
Control.run bit is set to start any DMA transactions.
Otherwise nothing will be transferred.

The following result is PDMA tested in U-Boot on Unmatched board:

=> mw.l 0x3000000 0x0                      <= Disclaim channel 0
                                              (Channel 0 is not claimed)
=> mw.l 0x3000004 0x55000000               <= wsize = rsize = 5 (2^5 = 32 bytes)
=> mw.q 0x3000008 0x2                      <= NextBytes = 2
=> mw.q 0x3000010 0x84000000               <= NextDestination = 0x84000000
=> mw.q 0x3000018 0x84001000               <= NextSource = 0x84001000
=> mw.l 0x84000000 0x87654321              <= Fill test data to dst
=> mw.l 0x84001000 0x12345678              <= Fill test data to src
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
8400000087654321                               !Ce.
8400100012345678                               xV4.
=> md.l 0x3000000 8                        <= Dump PDMA status
0300000000000000 55000000 00000002 00000000    .......U........
0300001084000000 00000000 84001000 00000000    ................
=> mw.l 0x3000000 0x3                      <= Set channel 0 run and claim bits
=> md.l 0x3000000 8                        <= Dump PDMA status
0300000000000001 66000000 00000000 00000000    .......f........
0300001000000000 00000000 00000000 00000000    ................
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
8400000087654321                               !Ce.
8400100012345678                               xV4.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Tested-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210912130553.179501-3-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agohw/dma: sifive_pdma: reset Next* registers when Control.claim is set
Frank Chang [Sun, 12 Sep 2021 13:05:45 +0000 (21:05 +0800)]
hw/dma: sifive_pdma: reset Next* registers when Control.claim is set

Setting Control.claim clears all of the chanel's Next registers.
This is effective only when Control.claim is set from 0 to 1.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Tested-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210912130553.179501-2-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agohw/riscv: virt: Add optional ACLINT support to virt machine
Anup Patel [Tue, 31 Aug 2021 11:06:03 +0000 (16:36 +0530)]
hw/riscv: virt: Add optional ACLINT support to virt machine

We extend virt machine to emulate ACLINT devices only when "aclint=on"
parameter is passed along with machine name in QEMU command-line.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210831110603.338681-5-anup.patel@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agohw/riscv: virt: Re-factor FDT generation
Anup Patel [Tue, 31 Aug 2021 11:06:02 +0000 (16:36 +0530)]
hw/riscv: virt: Re-factor FDT generation

We re-factor and break the FDT generation into smaller functions
so that it is easier to modify FDT generation for different
configurations of virt machine.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210831110603.338681-4-anup.patel@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agohw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT
Anup Patel [Tue, 31 Aug 2021 11:06:01 +0000 (16:36 +0530)]
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT

The RISC-V ACLINT is more modular and backward compatible with
original SiFive CLINT so instead of duplicating the original
SiFive CLINT implementation we upgrade the current SiFive CLINT
implementation to RISC-V ACLINT implementation.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210831110603.338681-3-anup.patel@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agohw/intc: Rename sifive_clint sources to riscv_aclint sources
Anup Patel [Tue, 31 Aug 2021 11:06:00 +0000 (16:36 +0530)]
hw/intc: Rename sifive_clint sources to riscv_aclint sources

We will be upgrading SiFive CLINT implementation into RISC-V ACLINT
implementation so let's first rename the sources.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210831110603.338681-2-anup.patel@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agosifive_u: Connect the SiFive PWM device
Alistair Francis [Thu, 9 Sep 2021 03:55:15 +0000 (13:55 +1000)]
sifive_u: Connect the SiFive PWM device

Connect the SiFive PWM device and expose it via the device tree.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 22f98648b4e012f78529a56f5ca60b0b27852a4d.1631159656.git.alistair.francis@wdc.com

3 years agohw/timer: Add SiFive PWM support
Alistair Francis [Thu, 9 Sep 2021 03:55:02 +0000 (13:55 +1000)]
hw/timer: Add SiFive PWM support

This is the initial commit of the SiFive PWM timer. This is used by
guest software as a timer and is included in the SiFive FU540 SoC.

Signed-off-by: Justin Restivo <jrestivo@draper.com>
Signed-off-by: Alexandra Clifford <aclifford@draper.com>
Signed-off-by: Amanda Strnad <astrnad@draper.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 9f70a210acbfaf0e1ea6ad311ab892ac69134d8b.1631159656.git.alistair.francis@wdc.com

3 years agohw/intc: ibex_timer: Convert the timer to use RISC-V CPU GPIO lines
Alistair Francis [Mon, 30 Aug 2021 05:35:15 +0000 (15:35 +1000)]
hw/intc: ibex_timer: Convert the timer to use RISC-V CPU GPIO lines

Instead of using riscv_cpu_update_mip() let's instead use the new RISC-V
CPU GPIO lines to set the timer MIP bits.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 84d5b1d5783d2e79eee69a2f7ac480cc0c070db3.1630301632.git.alistair.francis@wdc.com

3 years agohw/intc: sifive_plic: Convert the PLIC to use RISC-V CPU GPIO lines
Alistair Francis [Mon, 30 Aug 2021 05:35:02 +0000 (15:35 +1000)]
hw/intc: sifive_plic: Convert the PLIC to use RISC-V CPU GPIO lines

Instead of using riscv_cpu_update_mip() let's instead use the new RISC-V
CPU GPIO lines to set the external MIP bits.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 0364190bfa935058a845c0fa1ecf650328840ad5.1630301632.git.alistair.francis@wdc.com

3 years agohw/intc: ibex_plic: Convert the PLIC to use RISC-V CPU GPIO lines
Alistair Francis [Mon, 30 Aug 2021 05:34:49 +0000 (15:34 +1000)]
hw/intc: ibex_plic: Convert the PLIC to use RISC-V CPU GPIO lines

Instead of using riscv_cpu_update_mip() let's instead use the new RISC-V
CPU GPIO lines to set the external MIP bits.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 0a76946981852f5bd15f0c37ab35b253371027a8.1630301632.git.alistair.francis@wdc.com

3 years agohw/intc: sifive_clint: Use RISC-V CPU GPIO lines
Alistair Francis [Mon, 30 Aug 2021 05:34:36 +0000 (15:34 +1000)]
hw/intc: sifive_clint: Use RISC-V CPU GPIO lines

Instead of using riscv_cpu_update_mip() let's instead use the new RISC-V
CPU GPIO lines to set the timer and soft MIP bits.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Message-id: 946e1ef5e268b24084c7ddad84c146de62a56736.1630301632.git.alistair.francis@wdc.com

3 years agotarget/riscv: Expose interrupt pending bits as GPIO lines
Alistair Francis [Mon, 30 Aug 2021 05:34:20 +0000 (15:34 +1000)]
target/riscv: Expose interrupt pending bits as GPIO lines

Expose the 12 interrupt pending bits in MIP as GPIO lines.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 069d6162f0bc2f4a4f5a44e73f6442b11c703c53.1630301632.git.alistair.francis@wdc.com

3 years agotarget/riscv: Fix satp write
LIU Zhiwei [Wed, 1 Sep 2021 12:45:39 +0000 (20:45 +0800)]
target/riscv: Fix satp write

These variables should be target_ulong. If truncated to int,
the bool conditions they indicate will be wrong.

As satp is very important for Linux, this bug almost fails every boot.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210901124539.222868-1-zhiwei_liu@c-sky.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
3 years agotarget/riscv: Update the ePMP CSR address
Alistair Francis [Thu, 2 Sep 2021 00:40:10 +0000 (10:40 +1000)]
target/riscv: Update the ePMP CSR address

Update the ePMP CSRs to match the 0.9.3 ePMP spec
https://github.com/riscv/riscv-tee/blob/61455747230a26002d741f64879dd78cc9689323/Smepmp/Smepmp.pdf

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 28c908de60b9b04fa20e63d113885c98586053f3.1630543194.git.alistair.francis@wdc.com

3 years agoMerge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
Peter Maydell [Mon, 20 Sep 2021 15:17:05 +0000 (16:17 +0100)]
Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Fri 17 Sep 2021 09:17:32 BST
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  virtio-net: fix use after unmap/free for sg
  ebpf: only include in system emulators

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agoMerge remote-tracking branch 'remotes/jsnow-gitlab/tags/python-pull-request' into...
Peter Maydell [Mon, 20 Sep 2021 13:20:03 +0000 (14:20 +0100)]
Merge remote-tracking branch 'remotes/jsnow-gitlab/tags/python-pull-request' into staging

Python Pull request

This fixes the check-python-tox job.

CI including optional jobs is all green:
https://gitlab.com/jsnow/qemu/-/pipelines/372151147

# gpg: Signature made Thu 16 Sep 2021 23:05:35 BST
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jsnow-gitlab/tags/python-pull-request:
  python: pylint 2.11 support
  python: Update for pylint 2.10

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agohvf: Add Apple Silicon support
Alexander Graf [Thu, 16 Sep 2021 15:53:58 +0000 (17:53 +0200)]
hvf: Add Apple Silicon support

With Apple Silicon available to the masses, it's a good time to add support
for driving its virtualization extensions from QEMU.

This patch adds all necessary architecture specific code to get basic VMs
working, including save/restore.

Known limitations:

  - WFI handling is missing (follows in later patch)
  - No watchpoint/breakpoint support

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-5-agraf@csgraf.de
[PMM: added missing #include]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agohvf: Introduce hvf_arch_init() callback
Alexander Graf [Thu, 16 Sep 2021 15:53:57 +0000 (17:53 +0200)]
hvf: Introduce hvf_arch_init() callback

We will need to install a migration helper for the ARM hvf backend.
Let's introduce an arch callback for the overall hvf init chain to
do so.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-4-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agohvf: Add execute to dirty log permission bitmap
Alexander Graf [Thu, 16 Sep 2021 15:53:56 +0000 (17:53 +0200)]
hvf: Add execute to dirty log permission bitmap

Hvf's permission bitmap during and after dirty logging does not include
the HV_MEMORY_EXEC permission. At least on Apple Silicon, this leads to
instruction faults once dirty logging was enabled.

Add the bit to make it work properly.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-3-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agoarm: Move PMC register definitions to internals.h
Alexander Graf [Thu, 16 Sep 2021 15:53:55 +0000 (17:53 +0200)]
arm: Move PMC register definitions to internals.h

We will need PMC register definitions in accel specific code later.
Move all constant definitions to common arm headers so we can reuse
them.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-2-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agohw/intc: Set GIC maintenance interrupt level to only 0 or 1
Shashi Mallela [Mon, 20 Sep 2021 08:54:34 +0000 (09:54 +0100)]
hw/intc: Set GIC maintenance interrupt level to only 0 or 1

During sbsa acs level 3 testing, it is seen that the GIC maintenance
interrupts are not triggered and the related test cases fail.  This
is because we were incorrectly passing the value of the MISR register
(from maintenance_interrupt_state()) to qemu_set_irq() as the level
argument, whereas the device on the other end of this irq line
expects a 0/1 value.

Fix the logic to pass a 0/1 level indication, rather than a
0/not-0 value.

Fixes: c5fc89b36c0 ("hw/intc/arm_gicv3: Implement gicv3_cpuif_virt_update()")
Signed-off-by: Shashi Mallela <shashi.mallela@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210915205809.59068-1-shashi.mallela@linaro.org
[PMM: tweaked commit message; collapsed nested if()s into one]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agotarget/arm: Consolidate ifdef blocks in reset
Peter Maydell [Mon, 20 Sep 2021 08:54:33 +0000 (09:54 +0100)]
target/arm: Consolidate ifdef blocks in reset

Move an ifndef CONFIG_USER_ONLY code block up in arm_cpu_reset() so
it can be merged with another earlier one.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210914120725.24992-4-peter.maydell@linaro.org

3 years agotarget/arm: Always clear exclusive monitor on reset
Peter Maydell [Mon, 20 Sep 2021 08:54:33 +0000 (09:54 +0100)]
target/arm: Always clear exclusive monitor on reset

There's no particular reason why the exclusive monitor should
be only cleared on reset in system emulation mode. It doesn't
hurt if it isn't cleared in user mode, but we might as well
reduce the amount of code we have that's inside an ifdef.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210914120725.24992-3-peter.maydell@linaro.org

3 years agotarget/arm: Don't skip M-profile reset entirely in user mode
Peter Maydell [Mon, 20 Sep 2021 08:54:33 +0000 (09:54 +0100)]
target/arm: Don't skip M-profile reset entirely in user mode

Currently all of the M-profile specific code in arm_cpu_reset() is
inside a !defined(CONFIG_USER_ONLY) ifdef block.  This is
unintentional: it happened because originally the only
M-profile-specific handling was the setup of the initial SP and PC
from the vector table, which is system-emulation only.  But then we
added a lot of other M-profile setup to the same "if (ARM_FEATURE_M)"
code block without noticing that it was all inside a not-user-mode
ifdef.  This has generally been harmless, but with the addition of
v8.1M low-overhead-loop support we ran into a problem: the reset of
FPSCR.LTPSIZE to 4 was only being done for system emulation mode, so
if a user-mode guest tried to execute the LE instruction it would
incorrectly take a UsageFault.

Adjust the ifdefs so only the really system-emulation specific parts
are covered.  Because this means we now run some reset code that sets
up initial values in the FPCCR and similar FPU related registers,
explicitly set up the registers controlling FPU context handling in
user-emulation mode so that the FPU works by design and not by
chance.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/613
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210914120725.24992-2-peter.maydell@linaro.org

3 years agoelf2dmp: Fail cleanly if PDB file specifies zero block_size
Peter Maydell [Mon, 20 Sep 2021 08:54:32 +0000 (09:54 +0100)]
elf2dmp: Fail cleanly if PDB file specifies zero block_size

Coverity points out that if the PDB file we're trying to read
has a header specifying a block_size of zero then we will
end up trying to divide by zero in pdb_ds_read_file().
Check for this and fail cleanly instead.

Fixes: Coverity CID 1458869
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20210910170656.366592-3-philmd@redhat.com
Message-Id: <20210901143910.17112-3-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
3 years agoelf2dmp: Check curl_easy_setopt() return value
Peter Maydell [Mon, 20 Sep 2021 08:54:32 +0000 (09:54 +0100)]
elf2dmp: Check curl_easy_setopt() return value

Coverity points out that we aren't checking the return value
from curl_easy_setopt().

Fixes: Coverity CID 1458895
Inspired-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20210910170656.366592-2-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agohw/arm/aspeed: Add Fuji machine type
Peter Delevoryas [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
hw/arm/aspeed: Add Fuji machine type

This adds a new machine type "fuji-bmc" based on the following device tree:

https://github.com/torvalds/linux/blob/40cb6373b46/arch/arm/boot/dts/aspeed-bmc-facebook-fuji.dts

Most of the i2c devices are not there, they're added here:

https://github.com/facebook/openbmc/blob/fb2ed12002fb/meta-facebook/meta-fuji/recipes-utils/openbmc-utils/files/setup_i2c.sh

I tested this by building a Fuji image from Facebook's OpenBMC repo,
booting, and ssh'ing from host-to-guest.

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
[ clg: On 32-bit hosts, lower RAM to 1G because of 2047 MB limit ]
Message-Id: <20210906133124.3674661-1-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agohw/arm/aspeed: Allow machine to set UART default
Peter Delevoryas [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
hw/arm/aspeed: Allow machine to set UART default

When you run QEMU with an Aspeed machine and a single serial device
using stdio like this:

    qemu -machine ast2600-evb -drive ... -serial stdio

The guest OS can read and write to the UART5 registers at 0x1E784000 and
it will receive from stdin and write to stdout. The Aspeed SoC's have a
lot more UART's though (AST2500 has 5, AST2600 has 13) and depending on
the board design, may be using any of them as the serial console. (See
"stdout-path" in a DTS to check which one is chosen).

Most boards, including all of those currently defined in
hw/arm/aspeed.c, just use UART5, but some use UART1. This change adds
some flexibility for different boards without requiring users to change
their command-line invocation of QEMU.

I tested this doesn't break existing code by booting an AST2500 OpenBMC
image and an AST2600 OpenBMC image, each using UART5 as the console.

Then I tested switching the default to UART1 and booting an AST2600
OpenBMC image that uses UART1, and that worked too.

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210901153615.2746885-2-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agohw/arm/aspeed: Initialize AST2600 UART clock selection registers
Peter Delevoryas [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
hw/arm/aspeed: Initialize AST2600 UART clock selection registers

UART5 is typically used as the default debug UART on the AST2600, but
UART1 is also designed to be a debug UART. All the AST2600 UART's have
semi-configurable clock rates through registers in the System Control
Unit (SCU), but only UART5 works out of the box with zero-initialized
values. The rest of the UART's expect a few of the registers to be
initialized to non-zero values, or else the clock rate calculation will
yield zero or undefined (due to a divide-by-zero).

For reference, the U-Boot clock rate driver here shows the calculation:

    https://github.com/facebook/openbmc-uboot/blob/15f7e0dc01d8/drivers/clk/aspeed/clk_ast2600.c#L357

To summarize, UART5 allows selection from 4 rates: 24 MHz, 192 MHz, 24 /
13 MHz, and 192 / 13 MHz. The other UART's allow selecting either the
"low" rate (UARTCLK) or the "high" rate (HUARTCLK). UARTCLK and HUARTCLK
are configurable themselves:

    UARTCLK = UXCLK * R / (N * 2)
    HUARTCLK = HUXCLK * HR / (HN * 2)

UXCLK and HUXCLK are also configurable, and depend on the APLL and/or
HPLL clock rates, which also derive from complicated calculations. Long
story short, there's lots of multiplication and division from
configurable registers, and most of these registers are zero-initialized
in QEMU, which at best is unexpected and at worst causes this clock rate
driver to hang from divide-by-zero's. This can also be difficult to
diagnose, because it may cause U-Boot to hang before serial console
initialization completes, requiring intervention from gdb.

This change just initializes all of these registers with default values
from the datasheet.

To test this, I used Facebook's AST2600 OpenBMC image for "fuji", with
the following diff applied (because fuji uses UART1 for console output,
not UART5).

  @@ -323,8 +323,8 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp)
       }

      /* UART - attach an 8250 to the IO space as our UART5 */
  -    serial_mm_init(get_system_memory(), sc->memmap[ASPEED_DEV_UART5], 2,
  -                   aspeed_soc_get_irq(s, ASPEED_DEV_UART5),
  +    serial_mm_init(get_system_memory(), sc->memmap[ASPEED_DEV_UART1], 2,
  +                   aspeed_soc_get_irq(s, ASPEED_DEV_UART1),
                    38400, serial_hd(0), DEVICE_LITTLE_ENDIAN);

       /* I2C */

Without these clock rate registers being initialized, U-Boot hangs in
the clock rate driver from a divide-by-zero, because the UART1 clock
rate register reads return zero, and there's no console output. After
initializing them with default values, fuji boots successfully.

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
[ clg: Removed _PARAM suffix ]
Message-Id: <20210906134023.3711031-2-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agoarm/aspeed: Add DPS310 to Witherspoon and Rainier
Joel Stanley [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
arm/aspeed: Add DPS310 to Witherspoon and Rainier

Witherspoon uses the DPS310 as a temperature sensor. Rainier uses it as
a temperature and humidity sensor.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210629142336.750058-5-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agohw/misc: Add Infineon DPS310 sensor model
Joel Stanley [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
hw/misc: Add Infineon DPS310 sensor model

This contains some hardcoded register values that were obtained from the
hardware after reading the temperature.

It does enough to test the Linux kernel driver. The FIFO mode, IRQs and
operation modes other than the default as used by Linux are not modelled.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Message-Id: <20210616073358.750472-2-joel@jms.id.au>
[ clg: - Fixed sequential reading
       - Reworked regs_reset_state array
       - Moved model under hw/sensor/ ]
Message-Id: <20210629142336.750058-4-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agoaspeed: Emulate the AST2600A3
Joel Stanley [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
aspeed: Emulate the AST2600A3

This is the latest revision of the ASPEED 2600 SoC. As there is no
need to model multiple revisions of the same SoC for the moment,
update the SCU AST2600 to model the A3 revision instead of the A1 and
adapt the AST2600 SoC and machines.

Reset values are taken from v8 of the datasheet.

Signed-off-by: Joel Stanley <joel@jms.id.au>
[ clg: - Introduced an Aspeed "ast2600-a3" SoC class
       - Commit log update ]
Message-Id: <20210629142336.750058-3-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agoarm/aspeed: rainier: Add i2c eeproms and muxes
Joel Stanley [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
arm/aspeed: rainier: Add i2c eeproms and muxes

These are the devices documented by the Rainier device tree. With this
we can see the guest discovering the multiplexers and probing the eeprom
devices:

 i2c i2c-2: Added multiplexed i2c bus 16
 i2c i2c-2: Added multiplexed i2c bus 17
 i2c i2c-2: Added multiplexed i2c bus 18
 i2c i2c-2: Added multiplexed i2c bus 19
 i2c-mux-gpio i2cmux: 4 port mux on 1e78a180.i2c-bus adapter
 at24 20-0050: 8192 byte 24c64 EEPROM, writable, 1 bytes/write
 i2c i2c-4: Added multiplexed i2c bus 20
 at24 21-0051: 8192 byte 24c64 EEPROM, writable, 1 bytes/write
 i2c i2c-4: Added multiplexed i2c bus 21
 at24 22-0052: 8192 byte 24c64 EEPROM, writable, 1 bytes/write

Signed-off-by: Joel Stanley <joel@jms.id.au>
[ clg: Introduced aspeed_eeprom_init ]
Message-Id: <20210629142336.750058-2-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agomisc/pca9552: Fix LED status register indexing in pca955x_get_led()
Andrew Jeffery [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
misc/pca9552: Fix LED status register indexing in pca955x_get_led()

There was a bit of a thinko in the state calculation where every odd pin
in was reported in e.g. "pwm0" mode rather than "off". This was the
result of an incorrect bit shift for the 2-bit field representing each
LED state.

Fixes: a90d8f84674d ("misc/pca9552: Add qom set and get")
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210723043624.348158-1-andrew@aj.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agohw: aspeed_gpio: Clarify GPIO controller name
Joel Stanley [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
hw: aspeed_gpio: Clarify GPIO controller name

There are two GPIO controllers in the ast2600; one is 3.3V and the other
is 1.8V.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Rashmica Gupta <rashmica.g@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210713065854.134634-4-joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agohw: aspeed_gpio: Simplify 1.8V defines
Joel Stanley [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
hw: aspeed_gpio: Simplify 1.8V defines

There's no need to define the registers relative to the 0x800 offset
where the controller is mapped, as the device is instantiated as it's
own model at the correct memory address.

Simplify the defines and remove the offset to save future confusion.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Rashmica Gupta <rashmica.g@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210713065854.134634-3-joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agowatchdog: aspeed: Fix sequential control writes
Andrew Jeffery [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
watchdog: aspeed: Fix sequential control writes

The logic in the handling for the control register required toggling the
enable state for writes to stick. Rework the condition chain to allow
sequential writes that do not update the enable state.

Fixes: 854123bf8d4b ("wdt: Add Aspeed watchdog device model")
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210709053107.1829304-3-andrew@aj.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agowatchdog: aspeed: Sanitize control register values
Andrew Jeffery [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
watchdog: aspeed: Sanitize control register values

While some of the critical fields remain the same, there is variation in
the definition of the control register across the SoC generations.
Reserved regions are adjusted, while in other cases the mutability or
behaviour of fields change.

Introduce a callback to sanitize the value on writes to ensure model
behaviour reflects the hardware.

Fixes: 854123bf8d4b ("wdt: Add Aspeed watchdog device model")
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210709053107.1829304-2-andrew@aj.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agohw: arm: aspeed: Enable mac0/1 instead of mac1/2 for g220a
Guenter Roeck [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
hw: arm: aspeed: Enable mac0/1 instead of mac1/2 for g220a

According to its dts file in the Linux kernel, we need mac0 and mac1 enabled
instead of mac1 and mac2. Also, g220a is based on aspeed-g5 (ast2500) which
doesn't even have the third interface.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210810035742.550391-1-linux@roeck-us.net>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agohw: arm: aspeed: Enable eth0 interface for aspeed-ast2600-evb
Guenter Roeck [Mon, 20 Sep 2021 06:50:59 +0000 (08:50 +0200)]
hw: arm: aspeed: Enable eth0 interface for aspeed-ast2600-evb

Commit 7582591ae7 ("aspeed: Support AST2600A1 silicon revision") switched
the silicon revision for AST2600 to revision A1. On revision A1, the first
Ethernet interface is operational. Enable it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210808200457.889955-1-linux@roeck-us.net>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
3 years agoMerge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-virtiofs-20210916...
Peter Maydell [Sun, 19 Sep 2021 17:53:29 +0000 (18:53 +0100)]
Merge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-virtiofs-20210916' into staging

virtiofsd pull 2021-08-16

Two minor fixes; one for performance, the other seccomp
on s390x.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
# gpg: Signature made Thu 16 Sep 2021 14:51:38 BST
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert-gitlab/tags/pull-virtiofs-20210916:
  virtiofsd: Reverse req_list before processing it
  tools/virtiofsd: Add fstatfs64 syscall to the seccomp allowlist

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agovirtio-net: fix use after unmap/free for sg
Jason Wang [Thu, 2 Sep 2021 05:44:12 +0000 (13:44 +0800)]
virtio-net: fix use after unmap/free for sg

When mergeable buffer is enabled, we try to set the num_buffers after
the virtqueue elem has been unmapped. This will lead several issues,
E.g a use after free when the descriptor has an address which belongs
to the non direct access region. In this case we use bounce buffer
that is allocated during address_space_map() and freed during
address_space_unmap().

Fixing this by storing the elems temporarily in an array and delay the
unmap after we set the the num_buffers.

This addresses CVE-2021-3748.

Reported-by: Alexander Bulekov <alxndr@bu.edu>
Fixes: fbe78f4f55c6 ("virtio-net support")
Cc: qemu-stable@nongnu.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agoebpf: only include in system emulators
Paolo Bonzini [Tue, 7 Sep 2021 10:45:12 +0000 (12:45 +0200)]
ebpf: only include in system emulators

eBPF files are being included in user emulators, which is useless and
also breaks compilation because ebpf/trace-events is only processed
if a system emulator is included in the build.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/566
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agoMerge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-6.2-pull-request...
Peter Maydell [Thu, 16 Sep 2021 20:09:18 +0000 (21:09 +0100)]
Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-6.2-pull-request' into staging

Pull request linux-user 20210916

Code cleanup

# gpg: Signature made Thu 16 Sep 2021 16:11:58 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-6.2-pull-request:
  linux-user: Check lock_user result for ip_mreq_source sockopts
  linux-user: Drop unneeded includes from qemu.h
  linux-user: Don't include gdbstub.h in qemu.h
  linux-user: Split linux-user internals out of qemu.h
  linux-user: Split safe-syscall macro into its own header
  linux-user: Split mmap prototypes into user-mmap.h
  linux-user: Split loader-related prototypes into loader.h
  linux-user: Split signal-related prototypes into signal-common.h
  linux-user: Split strace prototypes into strace.h
  linux-user: Fix coding style nits in qemu.h

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3 years agopython: pylint 2.11 support
John Snow [Thu, 16 Sep 2021 18:22:48 +0000 (14:22 -0400)]
python: pylint 2.11 support

We're not ready to enforce f-strings everywhere, so just silence this
new warning.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Message-id: 20210916182248.721529-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
3 years agopython: Update for pylint 2.10
John Snow [Thu, 16 Sep 2021 18:22:47 +0000 (14:22 -0400)]
python: Update for pylint 2.10

A few new annoyances. Of note is the new warning for an unspecified
encoding when opening a text file, which actually does indicate a
potentially real problem; see
https://www.python.org/dev/peps/pep-0597/#motivation

Use LC_CTYPE to determine an encoding to use for interpreting QEMU's
terminal output. Note that Python states: "language code and encoding
may be None if their values cannot be determined" -- use a platform
default as a backup.

Notes: Passing encoding=None will generate a suppressed warning on
Python 3.10+ that 'None' should not be passed as the encoding
argument. This behavior may be deprecated in the future and the default
switched to be a ubiquitous UTF-8. Opting in to the locale default will
be done by passing the encoding 'locale', but that isn't available in
3.6 through 3.9. Presumably this warning will be unsuppressed some time
prior to the actual switch and we can re-investigate these issues at
that time if necessary.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Message-id: 20210916182248.721529-2-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
3 years agolinux-user: Check lock_user result for ip_mreq_source sockopts
Peter Maydell [Mon, 9 Aug 2021 15:54:24 +0000 (16:54 +0100)]
linux-user: Check lock_user result for ip_mreq_source sockopts

In do_setsockopt(), the code path for the options which take a struct
ip_mreq_source (IP_BLOCK_SOURCE, IP_UNBLOCK_SOURCE,
IP_ADD_SOURCE_MEMBERSHIP and IP_DROP_SOURCE_MEMBERSHIP) fails to
check the return value from lock_user().  Handle this in the usual
way by returning -TARGET_EFAULT.

(In practice this was probably harmless because we'd pass a NULL
pointer to setsockopt() and the kernel would then return EFAULT.)

Fixes: Coverity CID 1459987
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210809155424.30968-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
3 years agoMerge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-6.2-pull-reques...
Peter Maydell [Thu, 16 Sep 2021 15:02:31 +0000 (16:02 +0100)]
Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-6.2-pull-request' into staging

Trivial patches pull request 20210916

# gpg: Signature made Thu 16 Sep 2021 15:09:39 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-for-6.2-pull-request:
  target/sparc: Make sparc_cpu_dump_state() static
  target/avr: Fix compiler errors (-Werror=enum-conversion)
  hw/vfio: Fix typo in comments
  intel_iommu: Fix typo in comments
  target/i386: spelling: occured=>occurred, mininum=>minimum
  configure: add missing pc-bios/qemu_vga.ndrv symlink in build tree
  spelling: sytem => system
  qdev: Complete qdev_init_gpio_out() documentation
  hw/i386/acpi-build: Fix a typo
  util: Remove redundant checks in the openpty()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>