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13 months agotarget/riscv: Fix page_check_range use in fault-only-first
LIU Zhiwei [Sat, 29 Jul 2023 03:16:18 +0000 (11:16 +0800)]
target/riscv: Fix page_check_range use in fault-only-first

Commit bef6f008b98(accel/tcg: Return bool from page_check_range) converts
integer return value to bool type. However, it wrongly converted the use
of the API in riscv fault-only-first, where page_check_range < = 0, should
be converted to !page_check_range.

Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20230729031618.821-1-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
13 months agotarget/riscv/cpu.c: add smepmp isa string
Daniel Henrique Barboza [Thu, 20 Jul 2023 13:24:24 +0000 (10:24 -0300)]
target/riscv/cpu.c: add smepmp isa string

The cpu->cfg.epmp extension is still experimental, but it already has a
'smepmp' riscv,isa string. Add it.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230720132424.371132-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
13 months agotarget/riscv/cpu.c: add zmmul isa string
Daniel Henrique Barboza [Thu, 20 Jul 2023 13:24:23 +0000 (10:24 -0300)]
target/riscv/cpu.c: add zmmul isa string

zmmul was promoted from experimental to ratified in commit 6d00ffad4e95.
Add a riscv,isa string for it.

Fixes: 6d00ffad4e95 ("target/riscv: move zmmul out of the experimental properties")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230720132424.371132-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
13 months agohw/char/riscv_htif: Fix the console syscall on big endian hosts
Thomas Huth [Fri, 21 Jul 2023 09:47:20 +0000 (11:47 +0200)]
hw/char/riscv_htif: Fix the console syscall on big endian hosts

Values that have been read via cpu_physical_memory_read() from the
guest's memory have to be swapped in case the host endianess differs
from the guest.

Fixes: a6e13e31d5 ("riscv_htif: Support console output via proxy syscall")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230721094720.902454-3-thuth@redhat.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
13 months agohw/char/riscv_htif: Fix printing of console characters on big endian hosts
Thomas Huth [Fri, 21 Jul 2023 09:47:19 +0000 (11:47 +0200)]
hw/char/riscv_htif: Fix printing of console characters on big endian hosts

The character that should be printed is stored in the 64 bit "payload"
variable. The code currently tries to print it by taking the address
of the variable and passing this pointer to qemu_chr_fe_write(). However,
this only works on little endian hosts where the least significant bits
are stored on the lowest address. To do this in a portable way, we have
to store the value in an uint8_t variable instead.

Fixes: 5033606780 ("RISC-V HTIF Console")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230721094720.902454-2-thuth@redhat.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
13 months agotarget/riscv/cpu.c: do not run 'host' CPU with TCG
Daniel Henrique Barboza [Fri, 21 Jul 2023 13:34:11 +0000 (10:34 -0300)]
target/riscv/cpu.c: do not run 'host' CPU with TCG

The 'host' CPU is available in a CONFIG_KVM build and it's currently
available for all accels, but is a KVM only CPU. This means that in a
RISC-V KVM capable host we can do things like this:

$ ./build/qemu-system-riscv64 -M virt,accel=tcg -cpu host --nographic
qemu-system-riscv64: H extension requires priv spec 1.12.0

This CPU does not have a priv spec because we don't filter its extensions
via priv spec. We shouldn't be reaching riscv_cpu_realize_tcg() at all
with the 'host' CPU.

We don't have a way to filter the 'host' CPU out of the available CPU
options (-cpu help) if the build includes both KVM and TCG. What we can
do is to error out during riscv_cpu_realize_tcg() if the user chooses
the 'host' CPU with accel=tcg:

$ ./build/qemu-system-riscv64 -M virt,accel=tcg -cpu host --nographic
qemu-system-riscv64: 'host' CPU is not compatible with TCG acceleration

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230721133411.474105-1-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
13 months agoMerge tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu into staging
Stefan Hajnoczi [Fri, 8 Sep 2023 14:06:25 +0000 (10:06 -0400)]
Merge tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu into staging

trivial patches for 2023-09-08

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# gpg:                issuer "mjt@tls.msk.ru"
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" [full]
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* tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu: (22 commits)
  qxl: don't assert() if device isn't yet initialized
  hw/net/vmxnet3: Fix guest-triggerable assert()
  tests/qtest/usb-hcd: Remove the empty "init" tests
  target/ppc: use g_free() in test_opcode_table()
  hw/ppc: use g_free() in spapr_tce_table_post_load()
  trivial: Simplify the spots that use TARGET_BIG_ENDIAN as a numeric value
  accel/tcg: Fix typo in translator_io_start() description
  tests/qtest/test-hmp: Fix migrate_set_parameter xbzrle-cache-size test
  docs tests: Fix use of migrate_set_parameter
  qemu-options.hx: Rephrase the descriptions of the -hd* and -cdrom options
  hw/display/xlnx_dp: update comments
  block: spelling fixes
  misc/other: spelling fixes
  qga/: spelling fixes
  tests/: spelling fixes
  scripts/: spelling fixes
  include/: spelling fixes
  audio: spelling fixes
  xen: spelling fix
  riscv: spelling fixes
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agoMerge tag 'pull-nbd-2023-09-07-v2' of https://repo.or.cz/qemu/ericb into staging
Stefan Hajnoczi [Fri, 8 Sep 2023 14:06:01 +0000 (10:06 -0400)]
Merge tag 'pull-nbd-2023-09-07-v2' of https://repo.or.cz/qemu/ericb into staging

NBD patches for 2023-09-07

- Andrey Drobyshev - fix regression in iotest 197 under -nbd
- Stefan Hajnoczi - allow coroutine read and write context to split
across threads
- Philippe Mathieu-Daudé - remove a VLA allocation
- Denis V. Lunev - fix regression in iotest 233 with qemu-nbd -v --fork

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* tag 'pull-nbd-2023-09-07-v2' of https://repo.or.cz/qemu/ericb:
  qemu-nbd: document -v behavior in respect to --fork in man
  qemu-nbd: Restore "qemu-nbd -v --fork" output
  qemu-nbd: invent nbd_client_release_pipe() helper
  qemu-nbd: put saddr into into struct NbdClientOpts
  qemu-nbd: move srcpath into struct NbdClientOpts
  qemu-nbd: define struct NbdClientOpts when HAVE_NBD_DEVICE is not defined
  qemu-nbd: improve error message for dup2 error
  util/iov: Avoid dynamic stack allocation
  io: follow coroutine AioContext in qio_channel_yield()
  io: check there are no qio_channel_yield() coroutines during ->finalize()
  nbd: drop unused nbd_start_negotiate() aio_context argument
  nbd: drop unused nbd_receive_negotiate() aio_context argument
  qemu-iotests/197: use more generic commands for formats other than qcow2

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agoqemu-nbd: document -v behavior in respect to --fork in man
Denis V. Lunev [Wed, 6 Sep 2023 09:32:09 +0000 (11:32 +0200)]
qemu-nbd: document -v behavior in respect to --fork in man

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20230906093210.339585-8-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: Wording improvement]
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoqemu-nbd: Restore "qemu-nbd -v --fork" output
Denis V. Lunev [Wed, 6 Sep 2023 09:32:08 +0000 (11:32 +0200)]
qemu-nbd: Restore "qemu-nbd -v --fork" output

Closing stderr earlier is good for daemonized qemu-nbd under ssh
earlier, but breaks the case where -v is being used to track what is
happening in the server, as in iotest 233.

When we know we are verbose, we should preserve original stderr and
restore it once the setup stage is done. This commit restores the
original behavior with -v option. In this case original output
inside the test is kept intact.

Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
CC: Hanna Reitz <hreitz@redhat.com>
CC: Mike Maslenkin <mike.maslenkin@gmail.com>
Fixes: 5c56dd27a2 ("qemu-nbd: fix regression with qemu-nbd --fork run over ssh")
Message-ID: <20230906093210.339585-7-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
[eblake: fix build by avoiding stderr as struct member name]
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoMerge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging
Stefan Hajnoczi [Fri, 8 Sep 2023 11:09:04 +0000 (07:09 -0400)]
Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging

Pull request

- Jeuk Kim's emulated UFS device
- Fabiano Rosas' IOThread GSource "name" debugging aid

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* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
  tests/qtest: Introduce tests for UFS
  hw/ufs: Support for UFS logical unit
  hw/ufs: Support for Query Transfer Requests
  hw/ufs: Initial commit for emulated Universal-Flash-Storage
  iothread: Set the GSource "name" field

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agoqxl: don't assert() if device isn't yet initialized
Marc-André Lureau [Mon, 14 Aug 2023 19:33:30 +0000 (23:33 +0400)]
qxl: don't assert() if device isn't yet initialized

If the PCI BAR isn't yet mapped or was unmapped, QXL_IO_SET_MODE will
assert(). Instead, report a guest bug and keep going.

This can be reproduced with:

cat << EOF | ./qemu-system-x86_64 -vga qxl -m 2048 -nodefaults -qtest stdio
outl 0xcf8 0x8000101c
outl 0xcfc 0xc000
outl 0xcf8 0x80001001
outl 0xcfc 0x01000000
outl 0xc006 0x00
EOF

Fixes: https://gitlab.com/qemu-project/qemu/-/issues/1829
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agohw/net/vmxnet3: Fix guest-triggerable assert()
Thomas Huth [Thu, 17 Aug 2023 12:56:00 +0000 (14:56 +0200)]
hw/net/vmxnet3: Fix guest-triggerable assert()

The assert() that checks for valid MTU sizes can be triggered by
the guest (e.g. with the reproducer code from the bug ticket
https://gitlab.com/qemu-project/qemu/-/issues/517 ). Let's avoid
this problem by simply logging the error and refusing to activate
the device instead.

Fixes: d05dcd94ae ("net: vmxnet3: validate configuration values during activate")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
[Mjt: change format specifier from %d to %u for uint32_t argument]

13 months agotests/qtest/usb-hcd: Remove the empty "init" tests
Thomas Huth [Thu, 7 Sep 2023 14:39:42 +0000 (16:39 +0200)]
tests/qtest/usb-hcd: Remove the empty "init" tests

These tests do nothing additional compared to the other test,
so let's remove the empty functions to avoid wasting some few
precious test cycles here.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/ppc: use g_free() in test_opcode_table()
Daniel Henrique Barboza [Fri, 28 Jul 2023 19:56:46 +0000 (16:56 -0300)]
target/ppc: use g_free() in test_opcode_table()

table[i] is allocated in create_new_table() using g_new().

Use g_free(table[i]) instead of free(table[i]) to comply with QEMU low
level memory management guidelines.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
[Mjt: minor commit comment tweak]

13 months agohw/ppc: use g_free() in spapr_tce_table_post_load()
Daniel Henrique Barboza [Fri, 28 Jul 2023 19:56:45 +0000 (16:56 -0300)]
hw/ppc: use g_free() in spapr_tce_table_post_load()

tcet->mig_table is copied from tcet->table, which in turn is created
in spapr_tce_alloc_table() using g_new0().

Use g_free() instead of free() to deallocate it.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
[Mjt: fix commit comments]

13 months agotrivial: Simplify the spots that use TARGET_BIG_ENDIAN as a numeric value
Thomas Huth [Thu, 7 Sep 2023 11:35:00 +0000 (13:35 +0200)]
trivial: Simplify the spots that use TARGET_BIG_ENDIAN as a numeric value

TARGET_BIG_ENDIAN is *always* defined, either as 0 for little endian
targets or as 1 for big endian targets. So we can use this as a value
directly in places that need such a 0 or 1 for some reason, instead
of taking a detour through an additional local variable or something
similar.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agoaccel/tcg: Fix typo in translator_io_start() description
Philippe Mathieu-Daudé [Wed, 30 Aug 2023 16:08:34 +0000 (18:08 +0200)]
accel/tcg: Fix typo in translator_io_start() description

Missed while reviewing commit dfd1b81274
("accel/tcg: Introduce translator_io_start").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotests/qtest/test-hmp: Fix migrate_set_parameter xbzrle-cache-size test
Markus Armbruster [Fri, 25 Aug 2023 15:59:23 +0000 (17:59 +0200)]
tests/qtest/test-hmp: Fix migrate_set_parameter xbzrle-cache-size test

The command always fails with "Error: Parameter 'xbzrle_cache_size'
expects a power of two no less than the target page size".  The test
passes anyway.  Change the argument from 1 to 64k to make the test a
bit more useful.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agodocs tests: Fix use of migrate_set_parameter
Markus Armbruster [Fri, 25 Aug 2023 15:59:22 +0000 (17:59 +0200)]
docs tests: Fix use of migrate_set_parameter

docs/multi-thread-compression.txt uses parameter names with
underscores instead of dashes.  Wrong since day one.

docs/rdma.txt, tests/qemu-iotests/181, and tests/qtest/test-hmp.c are
wrong the same way since commit cbde7be900d2 (v6.0.0).  Hard to see,
as test-hmp doesn't check whether the commands work, and iotest 181
appears to be unaffected.

Fixes: 263170e679df (docs: Add a doc about multiple thread compression)
Fixes: cbde7be900d2 (migrate: remove QMP/HMP commands for speed, downtime and cache size)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agoqemu-options.hx: Rephrase the descriptions of the -hd* and -cdrom options
Thomas Huth [Tue, 29 Aug 2023 13:29:48 +0000 (15:29 +0200)]
qemu-options.hx: Rephrase the descriptions of the -hd* and -cdrom options

The current description says that these options will create a device
on the IDE bus, which is only true on x86. So rephrase these sentences
a little bit to speak of "default bus" instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agohw/display/xlnx_dp: update comments
Peter Maydell [Thu, 24 Aug 2023 12:26:01 +0000 (13:26 +0100)]
hw/display/xlnx_dp: update comments

Clarify somewhat misleading code comments.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agoblock: spelling fixes
Michael Tokarev [Fri, 14 Jul 2023 11:06:05 +0000 (14:06 +0300)]
block: spelling fixes

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
13 months agomisc/other: spelling fixes
Michael Tokarev [Fri, 14 Jul 2023 11:33:49 +0000 (14:33 +0300)]
misc/other: spelling fixes

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
13 months agoqga/: spelling fixes
Michael Tokarev [Fri, 14 Jul 2023 11:33:40 +0000 (14:33 +0300)]
qga/: spelling fixes

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
13 months agotests/: spelling fixes
Michael Tokarev [Fri, 14 Jul 2023 11:33:27 +0000 (14:33 +0300)]
tests/: spelling fixes

with some rewording in
 tests/qemu-iotests/298
 tests/qtest/fuzz/generic_fuzz.c
 tests/unit/test-throttle.c
as suggested by Eric.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
13 months agoscripts/: spelling fixes
Michael Tokarev [Fri, 14 Jul 2023 11:33:18 +0000 (14:33 +0300)]
scripts/: spelling fixes

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
13 months agoinclude/: spelling fixes
Michael Tokarev [Fri, 14 Jul 2023 11:33:02 +0000 (14:33 +0300)]
include/: spelling fixes

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
13 months agoaudio: spelling fixes
Michael Tokarev [Fri, 14 Jul 2023 11:30:34 +0000 (14:30 +0300)]
audio: spelling fixes

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
13 months agoxen: spelling fix
Michael Tokarev [Wed, 23 Aug 2023 18:58:15 +0000 (21:58 +0300)]
xen: spelling fix

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
13 months agoriscv: spelling fixes
Michael Tokarev [Fri, 14 Jul 2023 11:19:10 +0000 (14:19 +0300)]
riscv: spelling fixes

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
13 months agohexagon: spelling fixes
Michael Tokarev [Fri, 14 Jul 2023 11:21:23 +0000 (14:21 +0300)]
hexagon: spelling fixes

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Brian Cain <bcain@quicinc.com>
13 months agotrace-events: Fix the name of the tracing.rst file
Thomas Huth [Mon, 14 Aug 2023 17:12:28 +0000 (19:12 +0200)]
trace-events: Fix the name of the tracing.rst file

The file has been converted to .rst a while ago - make sure that the
references in the trace-events files are pointing to the right location
now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agoqemu-nbd: invent nbd_client_release_pipe() helper
Denis V. Lunev [Wed, 6 Sep 2023 09:32:07 +0000 (11:32 +0200)]
qemu-nbd: invent nbd_client_release_pipe() helper

Move the code from main() and nbd_client_thread() into the specific
helper. This code is going to be grown.

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20230906093210.339585-6-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoqemu-nbd: put saddr into into struct NbdClientOpts
Denis V. Lunev [Wed, 6 Sep 2023 09:32:06 +0000 (11:32 +0200)]
qemu-nbd: put saddr into into struct NbdClientOpts

We pass other parameters into nbd_client_thread() in this way. This patch
makes the code more consistent.

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20230906093210.339585-5-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoqemu-nbd: move srcpath into struct NbdClientOpts
Denis V. Lunev [Wed, 6 Sep 2023 09:32:05 +0000 (11:32 +0200)]
qemu-nbd: move srcpath into struct NbdClientOpts

We pass other parameters into nbd_client_thread() in this way. This patch
makes the code more consistent.

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20230906093210.339585-4-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: Note that this also cleans up a -Wshadow issue, first
introduced in e5b815b0]
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoqemu-nbd: define struct NbdClientOpts when HAVE_NBD_DEVICE is not defined
Denis V. Lunev [Wed, 6 Sep 2023 09:32:04 +0000 (11:32 +0200)]
qemu-nbd: define struct NbdClientOpts when HAVE_NBD_DEVICE is not defined

This patch also drops definition of some locals in main() to avoid
useless data copy.

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20230906093210.339585-3-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoqemu-nbd: improve error message for dup2 error
Denis V. Lunev [Wed, 6 Sep 2023 09:32:03 +0000 (11:32 +0200)]
qemu-nbd: improve error message for dup2 error

This error happens if we are not able to close the pipe to the
parent (to trace errors in the child process) and assign stderr to
/dev/null as required by the daemonizing convention.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Suggested-by: Eric Blake <eblake@redhat.com>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20230906093210.339585-2-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: commit message grammar]
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoutil/iov: Avoid dynamic stack allocation
Philippe Mathieu-Daudé [Thu, 24 Aug 2023 16:47:06 +0000 (17:47 +0100)]
util/iov: Avoid dynamic stack allocation

Use autofree heap allocation instead of variable-length array on the
stack.

The codebase has very few VLAs, and if we can get rid of them all we
can make the compiler error on new additions.  This is a defensive
measure against security bugs where an on-stack dynamic allocation
isn't correctly size-checked (e.g.  CVE-2021-3527).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20230824164706.2652277-1-peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoio: follow coroutine AioContext in qio_channel_yield()
Stefan Hajnoczi [Wed, 30 Aug 2023 22:48:02 +0000 (18:48 -0400)]
io: follow coroutine AioContext in qio_channel_yield()

The ongoing QEMU multi-queue block layer effort makes it possible for multiple
threads to process I/O in parallel. The nbd block driver is not compatible with
the multi-queue block layer yet because QIOChannel cannot be used easily from
coroutines running in multiple threads. This series changes the QIOChannel API
to make that possible.

In the current API, calling qio_channel_attach_aio_context() sets the
AioContext where qio_channel_yield() installs an fd handler prior to yielding:

  qio_channel_attach_aio_context(ioc, my_ctx);
  ...
  qio_channel_yield(ioc); // my_ctx is used here
  ...
  qio_channel_detach_aio_context(ioc);

This API design has limitations: reading and writing must be done in the same
AioContext and moving between AioContexts involves a cumbersome sequence of API
calls that is not suitable for doing on a per-request basis.

There is no fundamental reason why a QIOChannel needs to run within the
same AioContext every time qio_channel_yield() is called. QIOChannel
only uses the AioContext while inside qio_channel_yield(). The rest of
the time, QIOChannel is independent of any AioContext.

In the new API, qio_channel_yield() queries the AioContext from the current
coroutine using qemu_coroutine_get_aio_context(). There is no need to
explicitly attach/detach AioContexts anymore and
qio_channel_attach_aio_context() and qio_channel_detach_aio_context() are gone.
One coroutine can read from the QIOChannel while another coroutine writes from
a different AioContext.

This API change allows the nbd block driver to use QIOChannel from any thread.
It's important to keep in mind that the block driver already synchronizes
QIOChannel access and ensures that two coroutines never read simultaneously or
write simultaneously.

This patch updates all users of qio_channel_attach_aio_context() to the
new API. Most conversions are simple, but vhost-user-server requires a
new qemu_coroutine_yield() call to quiesce the vu_client_trip()
coroutine when not attached to any AioContext.

While the API is has become simpler, there is one wart: QIOChannel has a
special case for the iohandler AioContext (used for handlers that must not run
in nested event loops). I didn't find an elegant way preserve that behavior, so
I added a new API called qio_channel_set_follow_coroutine_ctx(ioc, true|false)
for opting in to the new AioContext model. By default QIOChannel uses the
iohandler AioHandler. Code that formerly called
qio_channel_attach_aio_context() now calls
qio_channel_set_follow_coroutine_ctx(ioc, true) once after the QIOChannel is
created.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20230830224802.493686-5-stefanha@redhat.com>
[eblake: also fix migration/rdma.c]
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoio: check there are no qio_channel_yield() coroutines during ->finalize()
Stefan Hajnoczi [Wed, 30 Aug 2023 22:48:01 +0000 (18:48 -0400)]
io: check there are no qio_channel_yield() coroutines during ->finalize()

Callers must clean up their coroutines before calling
object_unref(OBJECT(ioc)) to prevent an fd handler leak. Add an
assertion to check this.

This patch is preparation for the fd handler changes that follow.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-ID: <20230830224802.493686-4-stefanha@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agonbd: drop unused nbd_start_negotiate() aio_context argument
Stefan Hajnoczi [Wed, 30 Aug 2023 22:48:00 +0000 (18:48 -0400)]
nbd: drop unused nbd_start_negotiate() aio_context argument

aio_context is always NULL, so drop it.

Suggested-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230830224802.493686-3-stefanha@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agonbd: drop unused nbd_receive_negotiate() aio_context argument
Stefan Hajnoczi [Wed, 30 Aug 2023 22:47:59 +0000 (18:47 -0400)]
nbd: drop unused nbd_receive_negotiate() aio_context argument

aio_context is always NULL, so drop it.

Suggested-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230830224802.493686-2-stefanha@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agoqemu-iotests/197: use more generic commands for formats other than qcow2
Andrey Drobyshev [Thu, 7 Sep 2023 22:07:18 +0000 (01:07 +0300)]
qemu-iotests/197: use more generic commands for formats other than qcow2

In the previous commit e2f938265e0 ("tests/qemu-iotests/197: add
testcase for CoR with subclusters") we've introduced a new testcase for
copy-on-read with subclusters.  Test 197 always forces qcow2 as the top
image, but allows backing image to be in any format.  That last test
case didn't meet these requirements, so let's fix it by using more
generic "qemu-io -c map" command.

Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Message-ID: <20230907220718.983430-1-andrey.drobyshev@virtuozzo.com>
Tested-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
13 months agotests/qtest: Introduce tests for UFS
Jeuk Kim [Wed, 6 Sep 2023 07:43:51 +0000 (16:43 +0900)]
tests/qtest: Introduce tests for UFS

This patch includes the following tests
  Test mmio read
  Test ufs device initialization and ufs-lu recognition
  Test I/O (Performs a write followed by a read to verify)

Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 9e9207f54505e9ba30931849f949ff6f474ac333.1693980783.git.jeuk20.kim@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agohw/ufs: Support for UFS logical unit
Jeuk Kim [Wed, 6 Sep 2023 07:43:50 +0000 (16:43 +0900)]
hw/ufs: Support for UFS logical unit

This commit adds support for ufs logical unit.
The LU handles processing for the SCSI command,
unit descriptor query request.

This commit enables the UFS device to process
IO requests.

Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: beacc504376ab6a14b1a3830bb3c69382cf6aebc.1693980783.git.jeuk20.kim@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agohw/ufs: Support for Query Transfer Requests
Jeuk Kim [Wed, 6 Sep 2023 07:43:49 +0000 (16:43 +0900)]
hw/ufs: Support for Query Transfer Requests

This commit makes the UFS device support query
and nop out transfer requests.

The next patch would be support for UFS logical
unit and scsi command transfer request.

Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: ff7a5f0fd26761936a553ffb89d3df0ba62844e9.1693980783.git.jeuk20.kim@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agohw/ufs: Initial commit for emulated Universal-Flash-Storage
Jeuk Kim [Wed, 6 Sep 2023 07:43:48 +0000 (16:43 +0900)]
hw/ufs: Initial commit for emulated Universal-Flash-Storage

Universal Flash Storage (UFS) is a high-performance mass storage device
with a serial interface. It is primarily used as a high-performance
data storage device for embedded applications.

This commit contains code for UFS device to be recognized
as a UFS PCI device.
Patches to handle UFS logical unit and Transfer Request will follow.

Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 10232660d462ee5cd10cf673f1a9a1205fc8276c.1693980783.git.jeuk20.kim@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agoiothread: Set the GSource "name" field
Fabiano Rosas [Tue, 5 Sep 2023 18:03:59 +0000 (15:03 -0300)]
iothread: Set the GSource "name" field

Having a name in the source helps with debugging core dumps when one
might not have access to TLS data to cross-reference AioContexts with
their addresses.

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230905180359.14083-1-farosas@suse.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agoMerge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
Stefan Hajnoczi [Thu, 7 Sep 2023 14:29:06 +0000 (10:29 -0400)]
Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* only build util/async-teardown.c when system build is requested
* target/i386: fix BQL handling of the legacy FERR interrupts
* target/i386: fix memory operand size for CVTPS2PD
* target/i386: Add support for AMX-COMPLEX in CPUID enumeration
* compile plugins on Darwin
* configure and meson cleanups
* drop mkvenv support for Python 3.7 and Debian10
* add wrap file for libblkio
* tweak KVM stubs

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# gpg: Signature made Thu 07 Sep 2023 07:44:37 EDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (51 commits)
  docs/system/replay: do not show removed command line option
  subprojects: add wrap file for libblkio
  sysemu/kvm: Restrict kvm_pc_setup_irq_routing() to x86 targets
  sysemu/kvm: Restrict kvm_has_pit_state2() to x86 targets
  sysemu/kvm: Restrict kvm_get_apic_state() to x86 targets
  sysemu/kvm: Restrict kvm_arch_get_supported_cpuid/msr() to x86 targets
  target/i386: Restrict declarations specific to CONFIG_KVM
  target/i386: Allow elision of kvm_hv_vpindex_settable()
  target/i386: Allow elision of kvm_enable_x2apic()
  target/i386: Remove unused KVM stubs
  target/i386/cpu-sysemu: Inline kvm_apic_in_kernel()
  target/i386/helper: Restrict KVM declarations to system emulation
  hw/i386/fw_cfg: Include missing 'cpu.h' header
  hw/i386/pc: Include missing 'cpu.h' header
  hw/i386/pc: Include missing 'sysemu/tcg.h' header
  Revert "mkvenv: work around broken pip installations on Debian 10"
  mkvenv: assume presence of importlib.metadata
  Python: Drop support for Python 3.7
  configure: remove dead code
  meson: list leftover CONFIG_* symbols
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agoMerge tag 'ide-pull-request' of https://gitlab.com/jsnow/qemu into staging
Stefan Hajnoczi [Thu, 7 Sep 2023 14:28:33 +0000 (10:28 -0400)]
Merge tag 'ide-pull-request' of https://gitlab.com/jsnow/qemu into staging

IDE Pull request

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# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.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: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* tag 'ide-pull-request' of https://gitlab.com/jsnow/qemu:
  hw/ide/ahci: fix broken SError handling
  hw/ide/ahci: fix ahci_write_fis_sdb()
  hw/ide/ahci: PxCI should not get cleared when ERR_STAT is set
  hw/ide/ahci: PxSACT and PxCI is cleared when PxCMD.ST is cleared
  hw/ide/ahci: simplify and document PxCI handling
  hw/ide/ahci: write D2H FIS when processing NCQ command
  hw/ide/core: set ERR_STAT in unsupported command completion

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agoMerge tag 'pull-parallels-2023-09-06' of https://src.openvz.org/scm/~den/qemu into...
Stefan Hajnoczi [Thu, 7 Sep 2023 14:27:55 +0000 (10:27 -0400)]
Merge tag 'pull-parallels-2023-09-06' of https://src.openvz.org/scm/~den/qemu into staging

Parallels format driver changes:
  * Fix comments formatting inside parallels driver
  * Incorrect data end calculation in parallels_open()
  * Check if data_end greater than the file size
  * Add "explicit" argument to parallels_check_leak()
  * Add data_start field to BDRVParallelsState
  * Add checking and repairing duplicate offsets in BAT
  * Image repairing in parallels_open()
  * Use bdrv_co_getlength() in parallels_check_outside_image()
  * Add data_off check
  * Add data_off repairing to parallels_open()
  * Fix record in MAINTAINERS

Parallels format driver tests:
  * Add out-of-image check test for parallels format
  * Add leak check test for parallels format
  * Add test for BAT entries duplication check
  * Refactor tests of parallels images checks (131)
  * Fix cluster size in parallels images tests (131)
  * Fix test 131 after repair was added to parallels_open()
  * Add test for data_off check

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# gpg: Signature made Wed 06 Sep 2023 11:39:52 EDT
# gpg:                using RSA key F6F1367F707CF91519227CAD3F30A5AE93779C9F
# gpg:                issuer "den@openvz.org"
# gpg: Good signature from "Denis V. Lunev <den@openvz.org>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
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# Primary key fingerprint: F6F1 367F 707C F915 1922  7CAD 3F30 A5AE 9377 9C9F

* tag 'pull-parallels-2023-09-06' of https://src.openvz.org/scm/~den/qemu:
  iotests: Add test for data_off check
  iotests: Fix test 131 after repair was added to parallels_open()
  iotests: Fix cluster size in parallels images tests (131)
  iotests: Refactor tests of parallels images checks (131)
  iotests: Add test for BAT entries duplication check
  iotests: Add leak check test for parallels format
  iotests: Add out-of-image check test for parallels format
  parallels: Add data_off repairing to parallels_open()
  parallels: Add data_off check
  parallels: Use bdrv_co_getlength() in parallels_check_outside_image()
  parallels: Image repairing in parallels_open()
  parallels: Add checking and repairing duplicate offsets in BAT
  parallels: Add data_start field to BDRVParallelsState
  parallels: Add "explicit" argument to parallels_check_leak()
  parallels: Check if data_end greater than the file size
  parallels: Incorrect data end calculation in parallels_open()
  parallels: Fix comments formatting inside parallels driver
  MAINTAINERS: add tree to keep parallels format driver changes

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agoMerge tag 'pull-ppc-20230906' of https://github.com/legoater/qemu into staging
Stefan Hajnoczi [Thu, 7 Sep 2023 14:23:24 +0000 (10:23 -0400)]
Merge tag 'pull-ppc-20230906' of https://github.com/legoater/qemu into staging

ppc queue :

* debug facility improvements
* timebase and decrementer fixes
* record-replay fixes
* TCG fixes
* XIVE model improvements for multichip

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# gpg: Signature made Wed 06 Sep 2023 06:47:06 EDT
# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [unknown]
# gpg:                 aka "Cédric Le Goater <clg@kaod.org>" [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: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* tag 'pull-ppc-20230906' of https://github.com/legoater/qemu: (35 commits)
  ppc/xive: Add support for the PC MMIOs
  ppc/xive: Handle END triggers between chips with MMIOs
  ppc/xive: Introduce a new XiveRouter end_notify() handler
  ppc/xive: Use address_space routines to access the machine RAM
  target/ppc: Fix the order of kvm_enable judgment about kvmppc_set_interrupt()
  hw/ppc/e500: fix broken snapshot replay
  target/ppc: Flush inputs to zero with NJ in ppc_store_vscr
  target/ppc: Fix LQ, STQ register-pair order for big-endian
  tests/avocado: ppc64 reverse debugging tests for pseries and powernv
  tests/avocado: reverse-debugging cope with re-executing breakpoints
  tests/avocado: boot ppc64 pseries replay-record test to Linux VFS mount
  spapr: Fix record-replay machine reset consuming too many events
  spapr: Fix machine reset deadlock from replay-record
  target/ppc: Fix timebase reset with record-replay
  target/ppc: Fix CPU reservation migration for record-replay
  hw/ppc: Read time only once to perform decrementer write
  hw/ppc: Reset timebase facilities on machine reset
  target/ppc: Migrate DECR SPR
  hw/ppc: Always store the decrementer value
  target/ppc: Sign-extend large decrementer to 64-bits
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13 months agodocs/system/replay: do not show removed command line option
Paolo Bonzini [Tue, 5 Sep 2023 09:48:13 +0000 (11:48 +0200)]
docs/system/replay: do not show removed command line option

Cc: qemu-trivial@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agosubprojects: add wrap file for libblkio
Paolo Bonzini [Mon, 4 Sep 2023 11:00:25 +0000 (13:00 +0200)]
subprojects: add wrap file for libblkio

This allows building libblkio at the same time as QEMU, if QEMU is
configured with --enable-blkio --enable-download.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agosysemu/kvm: Restrict kvm_pc_setup_irq_routing() to x86 targets
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:24 +0000 (14:43 +0200)]
sysemu/kvm: Restrict kvm_pc_setup_irq_routing() to x86 targets

kvm_pc_setup_irq_routing() is only defined for x86 targets (in
hw/i386/kvm/apic.c). Its declaration is pointless on all
other targets.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-14-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agosysemu/kvm: Restrict kvm_has_pit_state2() to x86 targets
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:23 +0000 (14:43 +0200)]
sysemu/kvm: Restrict kvm_has_pit_state2() to x86 targets

kvm_has_pit_state2() is only defined for x86 targets (in
target/i386/kvm/kvm.c). Its declaration is pointless on
all other targets. Have it return a boolean.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-13-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agosysemu/kvm: Restrict kvm_get_apic_state() to x86 targets
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:22 +0000 (14:43 +0200)]
sysemu/kvm: Restrict kvm_get_apic_state() to x86 targets

kvm_get_apic_state() is only defined for x86 targets (in
hw/i386/kvm/apic.c). Its declaration is pointless on all
other targets.

Since we include "linux-headers/asm-x86/kvm.h", no need
to forward-declare 'struct kvm_lapic_state'.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-12-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agosysemu/kvm: Restrict kvm_arch_get_supported_cpuid/msr() to x86 targets
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:21 +0000 (14:43 +0200)]
sysemu/kvm: Restrict kvm_arch_get_supported_cpuid/msr() to x86 targets

kvm_arch_get_supported_cpuid() / kvm_arch_get_supported_msr_feature()
are only defined for x86 targets (in target/i386/kvm/kvm.c). Their
declarations are pointless on other targets.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-11-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agotarget/i386: Restrict declarations specific to CONFIG_KVM
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:20 +0000 (14:43 +0200)]
target/i386: Restrict declarations specific to CONFIG_KVM

Keep the function accessed by target/i386/ and hw/i386/
exposed, restrict the ones accessed by target/i386/kvm/.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-10-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agotarget/i386: Allow elision of kvm_hv_vpindex_settable()
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:19 +0000 (14:43 +0200)]
target/i386: Allow elision of kvm_hv_vpindex_settable()

Call kvm_enabled() before kvm_hv_vpindex_settable()
to let the compiler elide its call.

kvm-stub.c is now empty, remove it.

Suggested-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-9-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agotarget/i386: Allow elision of kvm_enable_x2apic()
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:18 +0000 (14:43 +0200)]
target/i386: Allow elision of kvm_enable_x2apic()

Call kvm_enabled() before kvm_enable_x2apic() to let the compiler elide
its call.  Cleanup the code by simplifying "!xen_enabled() &&
kvm_enabled()" to just "kvm_enabled()".

Suggested-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-8-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agotarget/i386: Remove unused KVM stubs
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:17 +0000 (14:43 +0200)]
target/i386: Remove unused KVM stubs

All these functions:

 - kvm_arch_get_supported_cpuid()
 - kvm_has_smm(()
 - kvm_hyperv_expand_features()
 - kvm_set_max_apic_id()

are called after checking for kvm_enabled(), which is
false when KVM is not built. Since the compiler elides
these functions, their stubs are not used and can be
removed.

Inspired-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-7-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agotarget/i386/cpu-sysemu: Inline kvm_apic_in_kernel()
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:16 +0000 (14:43 +0200)]
target/i386/cpu-sysemu: Inline kvm_apic_in_kernel()

In order to have cpu-sysemu.c become accelerator-agnostic,
inline kvm_apic_in_kernel() -- which is a simple wrapper
to kvm_irqchip_in_kernel() -- and use the generic "sysemu/kvm.h"
header.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-6-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agotarget/i386/helper: Restrict KVM declarations to system emulation
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:15 +0000 (14:43 +0200)]
target/i386/helper: Restrict KVM declarations to system emulation

User emulation doesn't need any KVM declarations.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-5-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agohw/i386/fw_cfg: Include missing 'cpu.h' header
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:14 +0000 (14:43 +0200)]
hw/i386/fw_cfg: Include missing 'cpu.h' header

fw_cfg_build_feature_control() uses CPUID_EXT_VMX which is
defined in "target/i386/cpu.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-4-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agohw/i386/pc: Include missing 'cpu.h' header
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:13 +0000 (14:43 +0200)]
hw/i386/pc: Include missing 'cpu.h' header

Both pc_piix.c and pc_q35.c files use CPU_VERSION_LEGACY
which is defined in "target/i386/cpu.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-3-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agohw/i386/pc: Include missing 'sysemu/tcg.h' header
Philippe Mathieu-Daudé [Mon, 4 Sep 2023 12:43:12 +0000 (14:43 +0200)]
hw/i386/pc: Include missing 'sysemu/tcg.h' header

Since commit 6f529b7534 ("target/i386: move FERR handling
to target/i386") pc_q35_init() calls tcg_enabled() which
is declared in "sysemu/tcg.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-2-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoRevert "mkvenv: work around broken pip installations on Debian 10"
Paolo Bonzini [Tue, 16 May 2023 10:38:48 +0000 (12:38 +0200)]
Revert "mkvenv: work around broken pip installations on Debian 10"

Debian 10 has Python 3.7, so it is not possible to use it anymore
now that Python 3.8 is required.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agomkvenv: assume presence of importlib.metadata
Paolo Bonzini [Tue, 6 Jun 2023 08:20:18 +0000 (10:20 +0200)]
mkvenv: assume presence of importlib.metadata

importlib.metadata is included in Python 3.8, so there is no
need to fallback to either importlib-metadata or pkgresources
when generating console script shims.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoPython: Drop support for Python 3.7
Paolo Bonzini [Wed, 3 May 2023 10:48:02 +0000 (12:48 +0200)]
Python: Drop support for Python 3.7

Debian 10 is not anymore a supported distro, since Debian 12 was
released on June 10, 2023.  Our supported build platforms as of today
all support at least 3.8 (and all of them except for Ubuntu 20.04
support 3.9):

openSUSE Leap 15.5: 3.6.15 (3.11.2)
CentOS Stream 8:    3.6.8  (3.8.13, 3.9.16, 3.11.4)
CentOS Stream 9:    3.9.17 (3.11.4)
Fedora 37:          3.11.4
Fedora 38:          3.11.4
Debian 11:          3.9.2
Debian 12:          3.11.2
Alpine 3.14, 3.15:  3.9.16
Alpine 3.16, 3.17:  3.10.10
Ubuntu 20.04 LTS:   3.8.10
Ubuntu 22.04 LTS:   3.10.12
NetBSD 9.3:         3.9.13*
FreeBSD 12.4:       3.9.16
FreeBSD 13.1:       3.9.18
OpenBSD 7.2:        3.9.17

Note: NetBSD does not appear to have a default meta-package, but offers
several options, the lowest of which is 3.7.15. However, "python39"
appears to be a pre-requisite to one of the other packages we request
in tests/vm/netbsd.

Since it is safe under our supported platform policy, bump our
minimum supported version of Python to 3.8.  The two most interesting
features to have by default include:

- the importlib.metadata module, whose lack is responsible for over 100
  lines of code in mkvenv.py

- improvements to asyncio, for example asyncio.CancelledError
  inherits from BaseException rather than Exception

In addition, code can now use the assignment operator ':='

Because mypy now learns about importlib.metadata, a small change to
mkvenv.py is needed to pass type checking.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoconfigure: remove dead code
Paolo Bonzini [Thu, 31 Aug 2023 08:46:41 +0000 (10:46 +0200)]
configure: remove dead code

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agomeson: list leftover CONFIG_* symbols
Paolo Bonzini [Tue, 15 Feb 2022 10:37:00 +0000 (11:37 +0100)]
meson: list leftover CONFIG_* symbols

There are no config-host.mak symbols anymore that are needed in
config-host.h; the only symbols that are included in config_host_data via
the foreach loop are:

- CONFIG_DEFAULT_TARGETS, which is not used by C code.

- CONFIG_TCG and CONFIG_TCG_INTERPRETER, which are not part of config-host.mak

So, list these two symbols explicitly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoconfigure, meson: remove target OS symbols from config-host.mak
Paolo Bonzini [Wed, 30 Aug 2023 09:39:45 +0000 (11:39 +0200)]
configure, meson: remove target OS symbols from config-host.mak

Stop applying config-host.mak to the sourcesets, since it does not
have any more CONFIG_* symbols coming from the command line.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoconfigure, meson: remove CONFIG_SOLARIS from config-host.mak
Paolo Bonzini [Tue, 28 Sep 2021 14:45:39 +0000 (16:45 +0200)]
configure, meson: remove CONFIG_SOLARIS from config-host.mak

CONFIG_SOLARIS is only used to pick tap implementations.  But the
target OS is invariant and does not depend on the configuration, so move
away from config_host and just use unconditional rules in softmmu_ss.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoconfigure, meson: move --enable-plugins to meson
Paolo Bonzini [Wed, 30 Aug 2023 10:20:53 +0000 (12:20 +0200)]
configure, meson: move --enable-plugins to meson

While the option still needs to be parsed in the configure script
(it's needed by tests/tcg, and also to decide about recursing
into contrib/plugins), passing it to Meson can be done with -D
instead of using config-host.mak.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoconfigure: unify recursion into sub-Makefiles
Paolo Bonzini [Wed, 30 Aug 2023 10:05:08 +0000 (12:05 +0200)]
configure: unify recursion into sub-Makefiles

Treat contrib/plugins the same as the firmware.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agocontrib/plugins: use an independent makefile
Paolo Bonzini [Thu, 7 Sep 2023 10:54:42 +0000 (12:54 +0200)]
contrib/plugins: use an independent makefile

The initial reason to write this patch was to remove the last use of
CONFIG_DEBUG_TCG from the makefiles; the flags to use to build TCG
plugins are unrelated to --enable-debug-tcg, and instead they should
be the same as those used to build emulators (the plugins are not build
via meson for demonstration reasons only).

However, since contrib/plugins/Makefile is also the last case of doing
a compilation job using config-host.mak, go a step further and make it
use a completely separate configuration file, removing all references
to compilers from the toplevel config-host.mak.  Clean up references to
empty variables, and use .SECONDARY so that intermediate object files
are not deleted.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoconfigure: move --enable-debug-tcg to meson
Paolo Bonzini [Mon, 28 Aug 2023 09:48:30 +0000 (11:48 +0200)]
configure: move --enable-debug-tcg to meson

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoconfigure: remove boolean variables for targets
Paolo Bonzini [Wed, 30 Aug 2023 09:15:07 +0000 (11:15 +0200)]
configure: remove boolean variables for targets

Just use $targetos always.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agomeson: compile bundled device trees
Paolo Bonzini [Mon, 28 Aug 2023 09:43:06 +0000 (11:43 +0200)]
meson: compile bundled device trees

If dtc is available, compile the .dts files in the pc-bios directory
instead of using the precompiled binaries.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoconfigure: create native file with contents of $host_cc
Paolo Bonzini [Fri, 7 Jul 2023 14:12:19 +0000 (16:12 +0200)]
configure: create native file with contents of $host_cc

The argument of --host-cc is not obeyed when cross compiling.  To avoid
this issue, place it in a configuration file and pass it to meson
with --native-file.

While at it, clarify that --host-cc is not obeyed anyway when _not_
cross compiling, because cc="$host_cc" is placed before --host-cc is
processed.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agoconfigure: remove HOST_CC
Paolo Bonzini [Tue, 4 Jul 2023 07:06:15 +0000 (09:06 +0200)]
configure: remove HOST_CC

$(HOST_CC) is only used to invoke the preprocessor, and $(CC) can be
used instead now that there is a Tricore C compiler.  Remove the variable
from config-host.mak.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agomeson: update unsupported host/CPU messages
Paolo Bonzini [Fri, 4 Aug 2023 09:29:05 +0000 (11:29 +0200)]
meson: update unsupported host/CPU messages

Unsupported CPU and OSes are not really going away, but the
project simply does not guarantee that they work.  Rephrase
the messages accordingly.  While at it, move the warning for
TCI performance at the end where it is more visible.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agomeson: do not unnecessarily use cmake for dependencies
Paolo Bonzini [Mon, 28 Aug 2023 10:03:05 +0000 (12:03 +0200)]
meson: do not unnecessarily use cmake for dependencies

Both gvnc and sysprof-capture come with pkg-config files, so specify
the method to find them.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agocontrib/plugins: add Darwin support
Paolo Bonzini [Thu, 7 Sep 2023 10:38:39 +0000 (12:38 +0200)]
contrib/plugins: add Darwin support

Under Darwin, using -shared makes it impossible to have undefined symbols
and -bundle has to be used instead; so detect the OS and use
different options.

Based-on: <20230907101811.469236-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agocontrib/plugins/lockstep: Fix string format
Philippe Mathieu-Daudé [Thu, 7 Sep 2023 10:50:03 +0000 (12:50 +0200)]
contrib/plugins/lockstep: Fix string format

This fixes on Darwin:

  plugins/lockstep.c:138:25: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                          us->pc, them->pc, g_slist_length(divergence_log),
                          ^~~~~~
  plugins/lockstep.c:138:33: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                          us->pc, them->pc, g_slist_length(divergence_log),
                                  ^~~~~~~~
  plugins/lockstep.c:148:25: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                          us->pc, us->insn_count, them->pc, them->insn_count);
                          ^~~~~~
  plugins/lockstep.c:148:49: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                          us->pc, us->insn_count, them->pc, them->insn_count);
                                                  ^~~~~~~~
  plugins/lockstep.c:156:36: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                                     prev->block->pc, prev->block->insns,
                                     ^~~~~~~~~~~~~~~
  plugins/lockstep.c:156:53: warning: format specifies type 'long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                                     prev->block->pc, prev->block->insns,
                                                      ^~~~~~~~~~~~~~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230907105004.88600-5-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agocontrib/plugins/howvec: Fix string format
Philippe Mathieu-Daudé [Thu, 7 Sep 2023 10:50:02 +0000 (12:50 +0200)]
contrib/plugins/howvec: Fix string format

This fixes on Darwin:

  plugins/howvec.c:186:40: warning: format specifies type 'long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                                         class->count);
                                         ^~~~~~~~~~~~
  plugins/howvec.c:213:36: warning: format specifies type 'long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                                     rec->count,
                                     ^~~~~~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230907105004.88600-4-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agocontrib/plugins/drcov: Fix string format
Philippe Mathieu-Daudé [Thu, 7 Sep 2023 10:50:01 +0000 (12:50 +0200)]
contrib/plugins/drcov: Fix string format

This fixes on Darwin:

  plugins/drcov.c:52:13: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
              start_code, end_code, entry, path);
              ^~~~~~~~~~
  plugins/drcov.c:52:25: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
              start_code, end_code, entry, path);
                          ^~~~~~~~
  plugins/drcov.c:52:35: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
              start_code, end_code, entry, path);
                                    ^~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230907105004.88600-3-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agocontrib/plugins/cache: Fix string format
Philippe Mathieu-Daudé [Thu, 7 Sep 2023 10:50:00 +0000 (12:50 +0200)]
contrib/plugins/cache: Fix string format

This fixes on Darwin:

  plugins/cache.c:550:28: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                             l1_daccess,
                             ^~~~~~~~~~
  plugins/cache.c:551:28: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                             l1_dmisses,
                             ^~~~~~~~~~
  plugins/cache.c:553:28: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                             l1_iaccess,
                             ^~~~~~~~~~
  plugins/cache.c:554:28: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                             l1_imisses,
                             ^~~~~~~~~~
  plugins/cache.c:560:32: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                                 l2_access,
                                 ^~~~~~~~~
  plugins/cache.c:561:32: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
                                 l2_misses,
                                 ^~~~~~~~~
  plugins/cache.c:665:52: warning: format specifies type 'long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
          g_string_append_printf(rep, ", %ld, %s\n", insn->l1_dmisses,
                                         ~~~         ^~~~~~~~~~~~~~~~
                                         %llu
  plugins/cache.c:678:52: warning: format specifies type 'long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
          g_string_append_printf(rep, ", %ld, %s\n", insn->l1_imisses,
                                         ~~~         ^~~~~~~~~~~~~~~~
                                         %llu
  plugins/cache.c:695:52: warning: format specifies type 'long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
          g_string_append_printf(rep, ", %ld, %s\n", insn->l2_misses,
                                         ~~~         ^~~~~~~~~~~~~~~
                                         %llu

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230907105004.88600-2-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agocontrib/plugins: remove -soname argument
Paolo Bonzini [Thu, 7 Sep 2023 10:17:54 +0000 (12:17 +0200)]
contrib/plugins: remove -soname argument

-soname is not needed for runtime-loaded modules.  For example, Meson says:

            if not isinstance(target, build.SharedModule) or target.force_soname:
                # Add -Wl,-soname arguments on Linux, -install_name on OS X
                commands += linker.get_soname_args(
                    self.environment, target.prefix, target.name, target.suffix,
                    target.soversion, target.darwin_versions)

(force_soname is set is shared modules are linked into a build target, which is not
the case here.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 months agohw/ide/ahci: fix broken SError handling
Niklas Cassel [Fri, 9 Jun 2023 14:08:44 +0000 (16:08 +0200)]
hw/ide/ahci: fix broken SError handling

When encountering an NCQ error, you should not write the NCQ tag to the
SError register. This is completely wrong.

The SError register has a clear definition, where each bit represents a
different error, see PxSERR definition in AHCI 1.3.1.

If we write a random value (like the NCQ tag) in SError, e.g. Linux will
read SError, and will trigger arbitrary error handling depending on the
NCQ tag that happened to be executing.

In case of success, ncq_cb() will call ncq_finish().
In case of error, ncq_cb() will call ncq_err() (which will clear
ncq_tfs->used), and then call ncq_finish(), thus using ncq_tfs->used is
sufficient to tell if finished should get set or not.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230609140844.202795-9-nks@flawful.org
Signed-off-by: John Snow <jsnow@redhat.com>
13 months agohw/ide/ahci: fix ahci_write_fis_sdb()
Niklas Cassel [Fri, 9 Jun 2023 14:08:43 +0000 (16:08 +0200)]
hw/ide/ahci: fix ahci_write_fis_sdb()

When there is an error, we need to raise a TFES error irq, see AHCI 1.3.1,
5.3.13.1 SDB:Entry.

If ERR_STAT is set, we jump to state ERR:FatalTaskfile, which will raise
a TFES IRQ unconditionally, regardless if the I bit is set in the FIS or
not.

Thus, we should never raise a normal IRQ after having sent an error IRQ.

It is valid to signal successfully completed commands as finished in the
same SDB FIS that generates the error IRQ. The important thing is that
commands that did not complete successfully (e.g. commands that were
aborted, do not get the finished bit set).

Before this commit, there was never a TFES IRQ raised on NCQ error.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230609140844.202795-8-nks@flawful.org
Signed-off-by: John Snow <jsnow@redhat.com>
13 months agohw/ide/ahci: PxCI should not get cleared when ERR_STAT is set
Niklas Cassel [Fri, 9 Jun 2023 14:08:42 +0000 (16:08 +0200)]
hw/ide/ahci: PxCI should not get cleared when ERR_STAT is set

For NCQ, PxCI is cleared on command queued successfully.
For non-NCQ, PxCI is cleared on command completed successfully.
Successfully means ERR_STAT, BUSY and DRQ are all cleared.

A command that has ERR_STAT set, does not get to clear PxCI.
See AHCI 1.3.1, section 5.3.8, states RegFIS:Entry and RegFIS:ClearCI,
and 5.3.16.5 ERR:FatalTaskfile.

In the case of non-NCQ commands, not clearing PxCI is needed in order
for host software to be able to see which command slot that failed.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Message-id: 20230609140844.202795-7-nks@flawful.org
Signed-off-by: John Snow <jsnow@redhat.com>
13 months agohw/ide/ahci: PxSACT and PxCI is cleared when PxCMD.ST is cleared
Niklas Cassel [Fri, 9 Jun 2023 14:08:41 +0000 (16:08 +0200)]
hw/ide/ahci: PxSACT and PxCI is cleared when PxCMD.ST is cleared

According to AHCI 1.3.1 definition of PxSACT:
This field is cleared when PxCMD.ST is written from a '1' to a '0' by
software. This field is not cleared by a COMRESET or a software reset.

According to AHCI 1.3.1 definition of PxCI:
This field is also cleared when PxCMD.ST is written from a '1' to a '0'
by software.

Clearing PxCMD.ST is part of the error recovery procedure, see
AHCI 1.3.1, section "6.2 Error Recovery".

If we don't clear PxCI on error recovery, the previous command will
incorrectly still be marked as pending after error recovery.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230609140844.202795-6-nks@flawful.org
Signed-off-by: John Snow <jsnow@redhat.com>
13 months agohw/ide/ahci: simplify and document PxCI handling
Niklas Cassel [Fri, 9 Jun 2023 14:08:40 +0000 (16:08 +0200)]
hw/ide/ahci: simplify and document PxCI handling

The AHCI spec states that:
For NCQ, PxCI is cleared on command queued successfully.

For non-NCQ, PxCI is cleared on command completed successfully.
(A non-NCQ command that completes with error does not clear PxCI.)

The current QEMU implementation either clears PxCI in check_cmd(),
or in ahci_cmd_done().

check_cmd() will clear PxCI for a command if handle_cmd() returns 0.
handle_cmd() will return -1 if BUSY or DRQ is set.

The QEMU implementation for NCQ commands will currently not set BUSY
or DRQ, so they will always have PxCI cleared by handle_cmd().
ahci_cmd_done() will never even get called for NCQ commands.

Non-NCQ commands are executed by ide_bus_exec_cmd().
Non-NCQ commands in QEMU are implemented either in a sync or in an async
way.

For non-NCQ commands implemented in a sync way, the command handler will
return true, and when ide_bus_exec_cmd() sees that a command handler
returns true, it will call ide_cmd_done() (which will call
ahci_cmd_done()). For a command implemented in a sync way,
ahci_cmd_done() will do nothing (since busy_slot is not set). Instead,
after ide_bus_exec_cmd() has finished, check_cmd() will clear PxCI for
these commands.

For non-NCQ commands implemented in an async way (using either aiocb or
pio_aiocb), the command handler will return false, ide_bus_exec_cmd()
will not call ide_cmd_done(), instead it is expected that the async
callback function will call ide_cmd_done() once the async command is
done. handle_cmd() will set busy_slot, if and only if BUSY or DRQ is
set, and this is checked _after_ ide_bus_exec_cmd() has returned.
handle_cmd() will return -1, so check_cmd() will not clear PxCI.
When the async callback calls ide_cmd_done() (which will call
ahci_cmd_done()), it will see that busy_slot is set, and
ahci_cmd_done() will clear PxCI.

This seems racy, since busy_slot is set _after_ ide_bus_exec_cmd() has
returned. The callback might come before busy_slot gets set. And it is
quite confusing that ahci_cmd_done() will be called for all non-NCQ
commands when the command is done, but will only clear PxCI in certain
cases, even though it will always write a D2H FIS and raise an IRQ.

Even worse, in the case where ahci_cmd_done() does not clear PxCI, it
still raises an IRQ. Host software might thus read an old PxCI value,
since PxCI is cleared (by check_cmd()) after the IRQ has been raised.

Try to simplify this by always setting busy_slot for non-NCQ commands,
such that ahci_cmd_done() will always be responsible for clearing PxCI
for non-NCQ commands.

For NCQ commands, clear PxCI when we receive the D2H FIS, but before
raising the IRQ, see AHCI 1.3.1, section 5.3.8, states RegFIS:Entry and
RegFIS:ClearCI.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Message-id: 20230609140844.202795-5-nks@flawful.org
Signed-off-by: John Snow <jsnow@redhat.com>
13 months agohw/ide/ahci: write D2H FIS when processing NCQ command
Niklas Cassel [Fri, 9 Jun 2023 14:08:39 +0000 (16:08 +0200)]
hw/ide/ahci: write D2H FIS when processing NCQ command

The way that BUSY + PxCI is cleared for NCQ (FPDMA QUEUED) commands is
described in SATA 3.5a Gold:

11.15 FPDMA QUEUED command protocol
DFPDMAQ2: ClearInterfaceBsy
"Transmit Register Device to Host FIS with the BSY bit cleared to zero
and the DRQ bit cleared to zero and Interrupt bit cleared to zero to
mark interface ready for the next command."

PxCI is currently cleared by handle_cmd(), but we don't write the D2H
FIS to the FIS Receive Area that actually caused PxCI to be cleared.

Similar to how ahci_pio_transfer() calls ahci_write_fis_pio() with an
additional parameter to write a PIO Setup FIS without raising an IRQ,
add a parameter to ahci_write_fis_d2h() so that ahci_write_fis_d2h()
also can write the FIS to the FIS Receive Area without raising an IRQ.

Change process_ncq_command() to call ahci_write_fis_d2h() without
raising an IRQ (similar to ahci_pio_transfer()), such that the FIS
Receive Area is in sync with the PxTFD shadow register.

E.g. Linux reads status and error fields from the FIS Receive Area
directly, so it is wise to keep the FIS Receive Area and the PxTFD
shadow register in sync.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Message-id: 20230609140844.202795-4-nks@flawful.org
Signed-off-by: John Snow <jsnow@redhat.com>
13 months agohw/ide/core: set ERR_STAT in unsupported command completion
Niklas Cassel [Fri, 9 Jun 2023 14:08:38 +0000 (16:08 +0200)]
hw/ide/core: set ERR_STAT in unsupported command completion

Currently, the first time sending an unsupported command
(e.g. READ LOG DMA EXT) will not have ERR_STAT set in the completion.
Sending the unsupported command again, will correctly have ERR_STAT set.

When ide_cmd_permitted() returns false, it calls ide_abort_command().
ide_abort_command() first calls ide_transfer_stop(), which will call
ide_transfer_halt() and ide_cmd_done(), after that ide_abort_command()
sets ERR_STAT in status.

ide_cmd_done() for AHCI will call ahci_write_fis_d2h() which writes the
current status in the FIS, and raises an IRQ. (The status here will not
have ERR_STAT set!).

Thus, we cannot call ide_transfer_stop() before setting ERR_STAT, as
ide_transfer_stop() will result in the FIS being written and an IRQ
being raised.

The reason why it works the second time, is that ERR_STAT will still
be set from the previous command, so when writing the FIS, the
completion will correctly have ERR_STAT set.

Set ERR_STAT before writing the FIS (calling cmd_done), so that we will
raise an error IRQ correctly when receiving an unsupported command.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230609140844.202795-3-nks@flawful.org
Signed-off-by: John Snow <jsnow@redhat.com>
14 months agoiotests: Add test for data_off check
Alexander Ivanov [Sat, 1 Jul 2023 10:11:23 +0000 (12:11 +0200)]
iotests: Add test for data_off check

Write a pattern to the first cluster. Corrupt the data_off field and check
if the field was repaired on image opening and the pattern has not changed.

Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Denis V. Lunev <den@openvz.org>
14 months agoiotests: Fix test 131 after repair was added to parallels_open()
Alexander Ivanov [Sat, 1 Jul 2023 10:11:22 +0000 (12:11 +0200)]
iotests: Fix test 131 after repair was added to parallels_open()

Images repairing in parallels_open() was added, thus parallels tests fail.
Access to an image leads to repairing the image. Further image check don't
detect any corruption. Remove reads after image creation in test 131.

Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Denis V. Lunev <den@openvz.org>