Luiz Capitulino [Tue, 27 Nov 2012 13:01:55 +0000 (11:01 -0200)]
qemu-ga: guest_file_handle_find(): take an Error argument
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
*Fixed missing space character in error message
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Anthony Liguori [Tue, 8 Jan 2013 21:15:57 +0000 (15:15 -0600)]
Merge remote-tracking branch 'afaerber/qom-cpu' into staging
* afaerber/qom-cpu:
target-i386: Explicitly set vendor for each built-in cpudef
target-i386: Sanitize AMD's ext2_features at realize time
target-i386: Filter out unsupported features at realize time
qemu-common.h: Make qemu_init_vcpu() stub static inline
target-i386: check/enforce: Eliminate check_feat field
target-i386: check/enforce: Check SVM flag support as well
target-i386: check/enforce: Check all CPUID.80000001H.EDX bits
target-i386: check/enforce: Do not ignore "hypervisor" flag
target-i386: check/enforce: Fix CPUID leaf numbers on error messages
target-i386: kvm: Enable all supported KVM features for -cpu host
target-i386: kvm: -cpu host: Use GET_SUPPORTED_CPUID for SVM features
cpu: Change parent type to Device
qdev: Don't assume existence of parent bus on unparenting
qdev: Include qdev code into *-user, too
libqemustub: sysbus_get_default() stub
libqemustub: vmstate register/unregister stubs
libqemustub: Add qemu_[un]register_reset() stubs
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Alex Williamson [Tue, 8 Jan 2013 21:10:03 +0000 (14:10 -0700)]
vfio-pci: Loosen sanity checks to allow future features
VFIO_PCI_NUM_REGIONS and VFIO_PCI_NUM_IRQS should never have been
used in this manner as it locks a specific kernel implementation.
Future features may introduce new regions or interrupt entries
(VGA may add legacy ranges, AER might add an IRQ for error
signalling). Fix this before it gets us into trouble.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Cc: qemu-stable@nongnu.org
Alex Williamson [Tue, 8 Jan 2013 21:09:03 +0000 (14:09 -0700)]
vfio-pci: Make host MSI-X enable track guest
Guests typically enable MSI-X with all of the vectors in the MSI-X
vector table masked. Only when the vector is enabled does the vector
get unmasked, resulting in a vector_use callback. These two points,
enable and unmask, correspond to pci_enable_msix() and request_irq()
for Linux guests. Some drivers rely on VF/PF or PF/fw communication
channels that expect the physical state of the device to match the
guest visible state of the device. They don't appreciate lazily
enabling MSI-X on the physical device.
To solve this, enable MSI-X with a single vector when the MSI-X
capability is enabled and immediate disable the vector. This leaves
the physical device in exactly the same state between host and guest.
Furthermore, the brief gap where we enable vector 0, it fires into
userspace, not KVM, so the guest doesn't get spurious interrupts.
Ideally we could call VFIO_DEVICE_SET_IRQS with the right parameters
to enable MSI-X with zero vectors, but this will currently return an
error as the Linux MSI-X interfaces do not allow it.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Cc: qemu-stable@nongnu.org
Igor Mammedov [Fri, 28 Dec 2012 20:01:18 +0000 (21:01 +0100)]
target-i386: Explicitly set vendor for each built-in cpudef
Since cpudef config is not supported anymore and all remaining sources
now always set x86_def_t.vendor[123] fields, remove setting default
vendor to simplify future re-factoring.
Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Igor Mammedov [Fri, 28 Dec 2012 20:01:17 +0000 (21:01 +0100)]
target-i386: Sanitize AMD's ext2_features at realize time
When CPU properties are implemented, ext2_features may change
between object_new(CPU) and cpu_realize_fn(). Sanitizing
ext2_features for AMD based CPU at realize() time will keep
current behavior after CPU features are converted to properties.
Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Eduardo Habkost [Fri, 4 Jan 2013 22:01:09 +0000 (20:01 -0200)]
target-i386: check/enforce: Check SVM flag support as well
When nested SVM is supported, the kernel returns the SVM flag on
GET_SUPPORTED_CPUID[1], so we can check the SVM flag safely in
kvm_check_features_against_host().
I don't know why the original code ignored the SVM flag. Maybe it was
because kvm_cpu_fill_host() used the CPUID instruction directly instead
of GET_SUPPORTED_CPUID
[1] Older kernels (before v2.6.37) returned the SVM flag even if nested
SVM was _not_ supported. So the only cases where this patch should
change behavior is when SVM is being requested by the user or the
CPU model, but not supported by the host. And on these cases we
really want QEMU to abort if the "enforce" option is set.
Eduardo Habkost [Fri, 4 Jan 2013 22:01:08 +0000 (20:01 -0200)]
target-i386: check/enforce: Check all CPUID.80000001H.EDX bits
I have no idea why PPRO_FEATURES was being ignored on the check of the
CPUID.80000001H.EDX bits. I believe it was a mistake, and it was
supposed to be ~(PPRO_FEATURES & CPUID_EXT2_AMD_ALIASES) or just
~CPUID_EXT2_AMD_ALIASES, because some time ago kvm_cpu_fill_host() used
the CPUID instruction directly (instead of
kvm_arch_get_supported_cpuid()).
But now kvm_cpu_fill_host() uses kvm_arch_get_supported_cpuid(), and
kvm_arch_get_supported_cpuid() returns all supported bits for
CPUID.80000001H.EDX, even the AMD aliases (that are explicitly copied
from CPUID.01H.EDX), so we can make the code check/enforce all the
CPUID.80000001H.EDX bits.
Eduardo Habkost [Fri, 4 Jan 2013 22:01:07 +0000 (20:01 -0200)]
target-i386: check/enforce: Do not ignore "hypervisor" flag
We don't need any hack to ignore CPUID_EXT_HYPERVISOR anymore, because
kvm_arch_get_supported_cpuid() now sets CPUID_EXT_HYPERVISOR properly.
So, this shouldn't introduce any behavior change, but it makes the code
simpler.
Eduardo Habkost [Fri, 4 Jan 2013 22:01:06 +0000 (20:01 -0200)]
target-i386: check/enforce: Fix CPUID leaf numbers on error messages
The -cpu check/enforce warnings are printing incorrect information about the
missing flags. There are no feature flags on CPUID leaves 0 and 0x80000000, but
there were references to 0 and 0x80000000 in the table at
kvm_check_features_against_host().
This changes the model_features_t struct to contain the register number as
well, so the error messages print the correct CPUID leaf+register information,
instead of wrong CPUID leaf numbers.
This also changes the format of the error messages, so they follow the
"CPUID.<leaf>.<register>.<name> [bit <offset>]" convention used in Intel
documentation. Example output:
$ qemu-system-x86_64 -machine pc-1.0,accel=kvm -cpu Opteron_G4,+ia64,enforce
warning: host doesn't support requested feature: CPUID.01H:EDX.ia64 [bit 30]
warning: host doesn't support requested feature: CPUID.01H:ECX.xsave [bit 26]
warning: host doesn't support requested feature: CPUID.01H:ECX.avx [bit 28]
warning: host doesn't support requested feature: CPUID.80000001H:ECX.abm [bit 5]
warning: host doesn't support requested feature: CPUID.80000001H:ECX.sse4a [bit 6]
warning: host doesn't support requested feature: CPUID.80000001H:ECX.misalignsse [bit 7]
warning: host doesn't support requested feature: CPUID.80000001H:ECX.3dnowprefetch [bit 8]
warning: host doesn't support requested feature: CPUID.80000001H:ECX.xop [bit 11]
warning: host doesn't support requested feature: CPUID.80000001H:ECX.fma4 [bit 16]
Unable to find x86 CPU definition
$
Eduardo Habkost [Fri, 4 Jan 2013 22:01:05 +0000 (20:01 -0200)]
target-i386: kvm: Enable all supported KVM features for -cpu host
When using -cpu host, we don't need to use the kvm_default_features
variable, as the user is explicitly asking QEMU to enable all feature
supported by the host.
This changes the kvm_cpu_fill_host() code to use GET_SUPPORTED_CPUID to
initialize the kvm_features field, so we get all host KVM features
enabled.
This will also allow us to properly check/enforce KVM features inside
kvm_check_features_against_host() later. For example, we will be able to
make this:
$ qemu-system-x86_64 -cpu ...,+kvm_pv_eoi,enforce
refuse to start if kvm_pv_eoi is not supported by the host (after we fix
kvm_check_features_against_host() to check KVM flags as well).
Eduardo Habkost [Fri, 4 Jan 2013 22:01:04 +0000 (20:01 -0200)]
target-i386: kvm: -cpu host: Use GET_SUPPORTED_CPUID for SVM features
The existing -cpu host code simply sets every bit inside svm_features
(initializing it to -1), and that makes it impossible to make the
enforce/check options work properly when the user asks for SVM features
explicitly in the command-line.
So, instead of initializing svm_features to -1, use GET_SUPPORTED_CPUID
to fill only the bits that are supported by the host (just like we do
for all other CPUID feature words inside kvm_cpu_fill_host()).
This will keep the existing behavior (as filter_features_for_kvm()
already uses GET_SUPPORTED_CPUID to filter svm_features), but will allow
us to properly check for KVM features inside
kvm_check_features_against_host() later.
refuse to start if the SVM "pfthreshold" feature is not supported by the
host (after we fix kvm_check_features_against_host() to check SVM flags
as well).
Andreas Färber [Fri, 4 Jan 2013 17:13:00 +0000 (18:13 +0100)]
qdev: Don't assume existence of parent bus on unparenting
Commit 667d22d1ae59da46b4c1fbd094ca61145f19b8c3 (qdev: move bus removal
to object_unparent) made the assumption that at unparenting time
parent_bus is not NULL. This assumption is unjustified since
object_unparent() may well be called directly after object_initialize(),
without any qdev_set_parent_bus().
This did not cause any issues yet because qdev_[try_]create() does call
qdev_set_parent_bus(), falling back to SysBus if unsupplied.
While at it, ensure that this new function uses the device_ prefix and
make the name more neutral in light of this semantic change.
Reported-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Tested-by: Igor Mammedov <imammedo@redhat.com>
Eduardo Habkost [Wed, 5 Dec 2012 16:49:09 +0000 (14:49 -0200)]
libqemustub: sysbus_get_default() stub
The stub will be used on cases where sysbus.c is not compiled in (e.g.
*-user).
Note that code that uses NULL as the bus with qdev{_try,}_create()
implicitly uses sysbus_get_default() as the bus, and will still require
sysbus.c to be compiled in.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Eduardo Habkost [Wed, 5 Dec 2012 16:49:07 +0000 (14:49 -0200)]
libqemustub: Add qemu_[un]register_reset() stubs
This will be useful for code that don't call qemu_devices_reset() (e.g.
*-user). If qemu_devices_reset() is never called, it means we don't need
to keep track of the reset handler list.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Anthony Liguori [Tue, 8 Jan 2013 16:36:20 +0000 (10:36 -0600)]
Merge remote-tracking branch 'kraxel/usb.75' into staging
* kraxel/usb.75: (32 commits)
uhci: stop using portio lists
usbredir: Add support for buffered bulk input (v2)
exynos4210: Add EHCI support
usb/ehci: Add SysBus EHCI device for Exynos4210
usb/ehci: Move capsbase and opregbase into SysBus EHCI class
usb/ehci: Clean up SysBus and PCI EHCI split
xhci: call set-address with dummy usbpacket
usb-redir: Add debugging to bufpq save / restore
usbredir: Add usbredir_init_endpoints() helper
usbredir: Verify we have 32 bits bulk length cap when redirecting to xhci
usbredir: Add ep_stopped USBDevice method
usbredir: Add USBEP2I and I2USBEP helper macros
usbredir: Add an usbredir_stop_ep helper function
usb: Add an usb_device_ep_stopped USBDevice method
usb: Fix usb_ep_find_packet_by_id
hid: Change idle handling to use a timer
uhci: Maximize how many frames we catch up when behind
uhci: Limit amount of frames processed in one go
uhci: Add a QH_VALID define
uhci: Fix pending interrupts getting lost on migration
...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Tue, 8 Jan 2013 16:36:13 +0000 (10:36 -0600)]
Merge remote-tracking branch 'stefanha/net' into staging
* stefanha/net:
rtl8139: preserve link state across device reset
e1000: no need auto-negotiation if link was down
net: clean up network at qemu process termination
e1000: Discard oversized packets based on SBP|LPE
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Petar Jovanovic [Wed, 2 Jan 2013 04:08:48 +0000 (05:08 +0100)]
target-mips: Fix helper and tests for dot/cross-dot product instructions
Helper function for dpa_w_ph, dpax_w_ph, dps_w_ph and dpsx_w_ph incorrectly
defines halfword vector elements as unsigned values. This results in wrong
output which is not triggered in the tests as they also follow this logic.
Signed-off-by: Petar Jovanovic <petarj@mips.com> Reviewed-by: Eric Johnson <ericj@mips.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Stefan Weil [Tue, 1 Jan 2013 18:44:31 +0000 (19:44 +0100)]
target-mips: Replace macros by inline functions
The macros RESTORE_ROUNDING_MODE and RESTORE_FLUSH_MODE silently used
variable env from their callers. Using inline functions with env passed
as a function argument is more transparent.
This modification was proposed by Peter Maydell.
Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Eric Johnson <ericj@mips.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Hans de Goede [Wed, 19 Dec 2012 14:08:33 +0000 (15:08 +0100)]
usbredir: Add support for buffered bulk input (v2)
Buffered bulk mode is intended for bulk *input* endpoints, where the data is
of a streaming nature (not part of a command-response protocol). These
endpoints' input buffer may overflow if data is not read quickly enough.
So in buffered bulk mode the usb-host takes care of the submitting and
re-submitting of bulk transfers.
Buffered bulk mode is necessary for reliable operation with the bulk in
endpoints of usb to serial convertors. Unfortunatelty buffered bulk input
mode will only work with certain devices, therefor this patch also adds a
usb-id table to enable it for devices which need it, while leaving the
bulk ep handling for other devices unmodified.
Note that the bumping of the required usbredir from 0.5.3 to 0.6 does
not mean that we will now need a newer usbredir release then qemu-1.3,
.pc files reporting 0.5.3 have only ever existed in usbredir builds directly
from git, so qemu-1.3 needs the 0.6 release too.
Changes in v2:
-Split of quirk handling into quirks.c
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Support backend guest notifier masking in vhost-net:
create eventfd at device init, when masked,
make vhost use that as eventfd instead of
sending an interrupt.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio-net: set/clear vhost_started in reverse order
As vhost started is cleared last thing on stop,
set it first things on start. This makes it
possible to use vhost_started while start is in
progress which is used by follow-up patches.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
some backends (notably vhost) can mask events
at their source in a way that is more efficient
than masking through kvm.
Specifically
- masking in kvm uses rcu write side so it has high latency
- in kvm on unmask we always send an interrupt
masking at source does not have these issues.
Add such support in virtio.h and use in virtio-pci.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Andreas Färber [Sun, 6 Jan 2013 08:31:30 +0000 (08:31 +0000)]
target-ppc: Slim conversion of model definitions to QOM subclasses
Since the model list is highly macrofied, keep ppc_def_t for now and
save a pointer to it in PowerPCCPUClass. This results in a flat list of
subclasses including aliases, to be refined later.
Move cpu_ppc_init() to translate_init.c and drop helper.c.
Long-term the idea is to turn translate_init.c into a standalone cpu.c.
Inline cpu_ppc_usable() into type registration.
Split cpu_ppc_register() in two by code movement into the initfn and
by turning the remaining part into a realizefn.
Move qemu_init_vcpu() call into the new realizefn and adapt
create_ppc_opcodes() to return an Error.
Turn -cpu host into its own subclass. This requires to move the
kvm_enabled() check in ppc_cpu_class_by_name() to avoid the class being
found via the normal name lookup in the !kvm_enabled() case.
Turn kvmppc_host_cpu_def() into the class_init and add an initfn that
asserts KVM is in fact enabled.
Implement -cpu ? and the QMP equivalent in terms of subclasses.
This newly exposes -cpu host to the user, ordered last for -cpu ?.
Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Stuart Yoder [Thu, 3 Jan 2013 12:37:02 +0000 (12:37 +0000)]
PPC: KVM: set has-idle in guest device tree
On e500mc, the platform doesn't provide a way for the CPU to go idle.
To still not uselessly burn CPU time, expose an idle hypercall to the guest
if kvm supports it.
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
[agraf: adjust for current code base, add patch description, fix non-kvm case] Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Thu, 3 Jan 2013 13:25:40 +0000 (13:25 +0000)]
openpic: fix CTPR and de-assertion of interrupts
Properly implement level-triggered interrupts by withdrawing an
interrupt from the raised queue if the interrupt source de-asserts.
Also withdraw from the raised queue if the interrupt becomes masked.
When CTPR is written, check whether we need to raise or lower the
interrupt output.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Thu, 3 Jan 2013 13:25:38 +0000 (13:25 +0000)]
openpic: IRQ_check: search the queue a word at a time
Search the queue more efficiently by first looking for a non-zero word,
and then using the common bit-searching function to find the bit within
the word. It would be even nicer if bitops_ffsl() could be hooked up
to the compiler intrinsic so that bit-searching instructions could be
used, but that's another matter.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Thu, 3 Jan 2013 13:25:37 +0000 (13:25 +0000)]
openpic: fix sense and priority bits
Previously, the sense and priority bits were masked off when writing
to IVPR, and all interrupts were treated as edge-triggered (despite
the existence of code for handling level-triggered interrupts).
Polarity is implemented only as storage. We don't simulate the
bad effects that you'd get on real hardware if you set this incorrectly,
but at least the guest sees the right thing when it reads back the register.
Sense now controls level/edge on FSL external interrupts (and all
interrupts on non-FSL MPIC). FSL internal interrupts do not have a sense
bit (reads as zero), but are level. FSL timers and IPIs do not have
sense or polarity bits (read as zero), and are edge-triggered. To
accommodate FSL internal interrupts, QEMU's internal notion of whether an
interrupt is level-triggered is separated from the IVPR bit.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Fri, 21 Dec 2012 16:15:50 +0000 (16:15 +0000)]
openpic: add some bounds checking for IRQ numbers
The two checks with abort() guard against potential QEMU-internal
problems, but the EOI check stops the guest from causing updates to queue
position -1 and other havoc if it writes EOI with no interrupt in
service.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: remove hunk in code that didn't get applied yet] Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Fri, 21 Dec 2012 16:15:48 +0000 (16:15 +0000)]
openpic: use standard bitmap operations
Besides the private implementation being redundant, namespace collisions
prevented the use of other things in bitops.h.
Serialization does get a bit more awkward, unfortunately, since the
standard bitmap operations are "unsigned long" rather than "uint32_t",
though in exchange we will get faster queue lookups on 64-bit hosts once
we search a word at a time.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
This counting approach is not robust against setting a bit that
was already set, or clearing a bit that was already clear. Perhaps
that is considered a bug, but besides the lack of any documentation
for that restriction, it's a pretty unpleasant way for the problem
to manifest itself.
It could be made more robust by testing the current value of the
bit before changing the count, but a later patch speeds up IRQ_check
in all cases, not just when there's nothing pending. Hopefully that
should be adequate to address performance concerns.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Fri, 21 Dec 2012 16:15:46 +0000 (16:15 +0000)]
openpic: always call IRQ_check from IRQ_get_next
Previously the code relied on the queue's "next" field getting
set to -1 sometime between an update to the bitmap, and the next
call to IRQ_get_next. Sometimes this happened after the update.
Sometimes it happened before the check. Sometimes it didn't happen
at all.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Fri, 21 Dec 2012 16:15:43 +0000 (16:15 +0000)]
openpic: rework critical interrupt support
Critical interrupts on FSL MPIC are not supposed to pay
attention to priority, IACK, EOI, etc. On the currently modeled
version it's not supposed to pay attention to the mask bit either.
Also reorganize to make it easier to implement newer FSL MPIC models,
which encode interrupt level information differently and support
mcheck as well as crit, and to reduce problems for later patches
in this set.
Still missing is the ability to lower the CINT signal to the core,
as IACK/EOI is not used. This will come with general IRQ-source-driven
lowering in the next patch.
New state is added which is not serialized, but instead is recomputed
in openpic_load() by calling the appropriate write_IRQreg function.
This should have the side effect of causing the IRQ outputs to be
raised appropriately on load, which was missing.
The serialization format is altered by swapping ivpr and idr (we'd like
IDR to be restored before we run the IVPR logic), and moving interrupts
to the end (so that other state has been restored by the time we run the
IDR/IVPR logic. Serialization for this driver is not yet in a state
where backwards compatibility is reasonable (assuming it works at all),
and the current serialization format was not built for extensibility.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: fix for current code state] Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Fri, 21 Dec 2012 16:15:42 +0000 (16:15 +0000)]
openpic: make register names correspond better with hw docs
The base openpic specification doesn't provide abbreviated register
names, so it's somewhat understandable that the QEMU code made up
its own, except that most of the names that QEMU used didn't correspond
to the terminology used by any implementation I could find.
In some cases, like PCTP, the phrase "processor current task priority"
could be found in the openpic spec when describing the concept, but
the register itself was labelled "current task priority register"
and every implementation seems to use either CTPR or the full phrase.
In other cases, individual implementations disagree on what to call
the register. The implementations I have documentation for are
Freescale, Raven (MCP750), and IBM. The Raven docs tend to not use
abbreviations at all. The IBM MPIC isn't implemented in QEMU. Thus,
where there's disagreement I chose to use the Freescale abbreviations.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: rebase on current state of the code] Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Fri, 21 Dec 2012 16:15:41 +0000 (16:15 +0000)]
ppc/booke: fix crit/mcheck/debug exceptions
Book E does not play games with certain bits of xSRR1 being MSR save
bits and others being error status. xSRR1 is the old MSR, period.
This was causing things like MSR[CE] to be lost, even in the saved
version, as soon as you take an exception.
rfci/rfdi/rfmci are fixed to pass the actual xSRR1 register contents,
rather than the register number.
Put FIXME comments on the hack that is "asrr0/1". The whole point of
separate exception levels is so that you can, for example, take a machine
check or debug interrupt without corrupting critical-level operations.
The right xSRR0/1 set needs to be chosen based on CPU type flags.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Fri, 21 Dec 2012 16:15:39 +0000 (16:15 +0000)]
openpic: lower interrupt when reading the MSI register
This will stop things from breaking once it's properly treated as a
level-triggered interrupt. Note that it's the MPIC's MSI cascade
interrupts that are level-triggered; the individual MSIs are
edge-triggered.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Fri, 21 Dec 2012 16:15:38 +0000 (16:15 +0000)]
openpic: fix debug prints
Fix various format errors when debug prints are enabled. Also
cause error checking to happen even when debug prints are not
enabled, and consistently use 0x for hex output.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: adjust for more recent code base, prettify DPRINTF macro] Signed-off-by: Alexander Graf <agraf@suse.de>
Samuel Seay [Wed, 2 Jan 2013 10:53:46 +0000 (10:53 +0000)]
PPC: fix segfault in signal handling code
Removed h2g() macro around the ka->_sa_handler due to the _sa_handler being a
guest memory address.
Changed the __put_user to put_user as it was attempting to put a value at the
stack address but the new address is a guest memory address, __put_user is
for host memory addresses.
Signed-off-by: Samuel Seay <LightningTH@GMail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[agraf: change subject line, reformat commit message] Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Thu, 13 Dec 2012 16:12:02 +0000 (16:12 +0000)]
openpic: don't crash on a register access without a CPU context
If we access a register via the QEMU memory inspection commands (e.g.
"xp") rather than from guest code, we won't have a CPU context.
Gracefully fail to access the register in that case, rather than
crashing.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Thu, 13 Dec 2012 16:12:04 +0000 (16:12 +0000)]
openpic: s/opp->nb_irqs -1/opp->nb_cpus - 1/
"opp->nb_irqs-1" would have been a minor coding style error,
but putting in one space but not the other makes it look
confusingly like a numeric literal "-1".
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Thu, 13 Dec 2012 16:12:03 +0000 (16:12 +0000)]
openpic: BRR1 is not a CPU-specific register.
It's in the address range that normally contains a magic redirection
to the CPU-specific region of the curretn CPU, but it isn't actually
a per-CPU register. On real hardware BRR1 shows up only at 0x40000,
not at 0x60000 or other non-magic per-CPU areas. Plus, this makes
it possible to read the register on the QEMU command line with "xp".
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Thu, 13 Dec 2012 16:11:59 +0000 (16:11 +0000)]
openpic: symbolicize some magic numbers
Deefine symbolic names for some register bits, and use some that
have already been defined.
Also convert some register values from hex to decimal when it improves
readability.
IPVP_PRIORITY_MASK is corrected from (0x1F << 16) to (0xF << 16), in
conjunction with making wider use of the symbolic name. I looked at
Freescale and IBM MPIC docs and at the base OpenPIC spec, and all three
had priority as 4 bits rather than 5. Plus, the magic nubmer that is
being replaced with symbolic values treated the field as 4 bits wide.
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Andreas Färber [Sun, 16 Dec 2012 03:49:43 +0000 (04:49 +0100)]
usb/ehci: Clean up SysBus and PCI EHCI split
SysBus EHCI was introduced in a hurry before 1.3 Soft Freeze.
To use QOM casts in place of DO_UPCAST() / FROM_SYSBUS(), we need an
identifying type. Introduce generic abstract base types for PCI and
SysBus EHCI to allow multiple types to access the shared fields.
While at it, move the state structs being amended with macros to the
header file so that they can be embedded.
The VMSTATE_PCI_DEVICE() macro does not play nice with the QOM
parent_obj naming convention, so defer that cleanup.
Signed-off-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Fri, 14 Dec 2012 12:10:39 +0000 (13:10 +0100)]
xhci: call set-address with dummy usbpacket
Due to the way devices are addressed with xhci (done by hardware, not
the guest os) there is no packet when invoking the set-address control
request. Create a dummy packet in that case to avoid null pointer
dereferences.
Hans de Goede [Fri, 14 Dec 2012 13:35:44 +0000 (14:35 +0100)]
usbredir: Verify we have 32 bits bulk length cap when redirecting to xhci
The xhci-hcd may submit bulk transfers > 65535 bytes even when not using
bulk-in pipeling, so usbredir can only be used in combination with an xhci
hcd if the client has the 32 bits bulk length capability.
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Hans de Goede [Fri, 14 Dec 2012 13:35:40 +0000 (14:35 +0100)]
usb: Add an usb_device_ep_stopped USBDevice method
Some usb devices (host or network redirection) can benefit from knowing when
the guest stops using an endpoint. Redirection may involve submitting packets
independently from the guest (in combination with a fifo buffer between the
redirection code and the guest), to ensure that buffers of the real usb device
are timely emptied. This is done for example for isoc traffic and for interrupt
input endpoints. But when the (re)submission of packets is done by the device
code, then how does it know when to stop this?
For isoc endpoints this is handled by detecting a set interface (change alt
setting) command, which works well for isoc endpoints. But for interrupt
endpoints currently the redirection code never stops receiving data from
the device, which is less then ideal.
However the controller emulation is aware when a guest looses interest, as
then the qh for the endpoint gets unlinked (ehci, ohci, uhci) or the endpoint
is explicitly stopped (xhci). This patch adds a new ep_stopped USBDevice
method and modifies the hcd code to call this on queue unlink / ep stop.
This makes it possible for the redirection code to properly stop receiving
interrupt input (*) data when the guest no longer has interest in it.
*) And in the future also buffered bulk input.
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Hans de Goede [Fri, 14 Dec 2012 13:35:38 +0000 (14:35 +0100)]
hid: Change idle handling to use a timer
This leads to cleaner code in usb-hid, and removes up to a 1000 calls / sec to
qemu_get_clock_ns(vm_clock) if idle-time is set to its default value of 0.
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Hans de Goede [Fri, 14 Dec 2012 13:35:36 +0000 (14:35 +0100)]
uhci: Limit amount of frames processed in one go
Before this patch uhci would process an unlimited amount of frames when
behind on schedule, by setting the timer to a time already past, causing the
timer subsys to immediately recall the frame_timer function gain.
This would cause invalid cancellations of bulk queues when the catching up
processed more then 32 frames at a moment when the bulk qh was temporarily
unlinked (which the Linux uhci driver does).
This patch fixes this by processing maximum 16 frames in one go, and always
setting the timer one ms later, making the code behave more like the ehci
code.
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Hans de Goede [Fri, 14 Dec 2012 13:35:33 +0000 (14:35 +0100)]
uhci: Fix 1 ms delay in interrupt reporting to the guest
Re-arrange how we process frames / increase frnum / report pending interrupts,
to avoid a 1 ms delay in interrupt reporting to the guest. This increases
the packet throughput for cases where the guest submits a single packet,
then waits for its completion then re-submits from 500 pkts / sec to
1000 pkts / sec. This impacts for example the use of redirected / virtual
usb to serial convertors.
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
projects / qemu.git / log