When enabling the sanitizer build it will complain about control
reaching a non-void function. Normally the compiler should detect that
there is only one possible exit given a static VNC_SERVER_FB_BYTES.
As we always expect a static VNC_SERVER_FB_BYTES I've added a compile
time assert and just called the sub-function directly.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This switches over spice (in opengl mode) to render DisplaySurface
updates into a opengl texture, using the helper functions in
ui/console-gl.c. With this patch applied spice (with gl=on) will
stop using qxl rendering ops, it will use dma-buf passing all the
time, i.e. for bios/bootloader (before virtio-gpu driver is loaded)
too.
This should improve performance even using spice (with gl=on) with
non-accelerated stdvga because we stop squeezing all display updates
through a unix/tcp socket and basically using a shared memory transport
instead.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1474617028-3979-3-git-send-email-kraxel@redhat.com
Keep track of gl_block state (added in bba19b8 console: block rendering
until client is done) in QemuConsole and allow to query it. This way
we can avoid state inconsistencies in case different code paths make use
of this.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1474617028-3979-2-git-send-email-kraxel@redhat.com
virtio-gpu does a set-scanout at each frame (it might be a driver
regression). qemu_console_resize() recreate a surface even if the size
didn't change, and this shows up in profiling reports because the
surface is cleared. With this patch, I get a +15-20% glmark2
improvement.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20160826094711.14470-1-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add a test for the newly implemented ADDC instruction in the v17 CRIS
CPU.
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
In the CRIS v17 CPU an ADDC (add with carry) instruction has been added
compared to the v10 instruction set.
Assembler syntax:
ADDC [Rs],Rd
ADDC [Rs+],Rd
Size: Dword
Description:
The source data is added together with the carry flag to the
destination register. The size of the operation is dword.
Operation:
Rd += s + C-flag;
Flags affected:
S R P U I X N Z V C
- - - - - 0 * * * *
Instruction format: ADDC [Rs],Rd
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
|Destination(Rd)| 1 0 0 1 1 0 1 0 | Source(Rs) |
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
Instruction format: ADDC [Rs+],Rd
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
|Destination(Rd)| 1 1 0 1 1 0 1 0 | Source(Rs) |
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
[EI: Shorten 80+ lines]
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Use the correct register names for v10 and don't dump support function
registers for pre-v32.
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Hans-Peter Nilsson <hp@axis.com>
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
This test, borrowed from the GDB simulator test suite, checks that every
syscall increments the time returned by gettimeofday() by exactly 1 ms.
This is not guaranteed or even desirable on QEMU so remove this test.
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
This test, borrowed from the GDB simulator test suite, is meant to test
the GDB simulator's --sysroot feature and always fails in QEMU. Remove
it. openpf3 tests the same sequence of system calls (without assuming
the precence of --sysroot).
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Add the appropriate register constraints for the inline asm for the
write and exit system calls. Without the correct constraints for the
write() function, correct failure messages are not printed succesfully
on newer version of GCC.
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
The CRIS tests expect that functions marked inline are always inline.
With newer versions of GCC, building them results warnings like the
following and spurious failures when they are run.
In file included from tests/tcg/cris/check_moveq.c:5:0:
tests/tcg/cris/crisutils.h:66:20: warning: inlining failed in call to
'cris_tst_cc.constprop.0': call is unlikely and code size would grow [-Winline]
tests/tcg/cris/check_moveq.c:28:13: warning: called from here [-Winline]
Use the always_inline attribute when building them to fix this.
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Copy data operated on during request from/to local buffers to/from
the grant references.
Before grant copy operation local buffers must be allocated what is
done by calling ioreq_init_copy_buffers. For the 'read' operation,
first, the qemu device invokes the read operation on local buffers
and on the completion grant copy is called and buffers are freed.
For the 'write' operation grant copy is performed before invoking
write by qemu device.
A new value 'feature_grant_copy' is added to recognize when the
grant copy operation is supported by a guest.
Signed-off-by: Paulina Szubarczyk <paulinaszubarczyk@gmail.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging
x86 and machine queue, 2016-09-27
# gpg: Signature made Tue 27 Sep 2016 21:10:06 BST
# gpg: using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/x86-pull-request:
sysbus: Remove ignored return value of FindSysbusDeviceFunc
target-i386: Remove has_msr_* global vars for KVM features
target-i386: Clear KVM CPUID features if KVM is disabled
target-i386: Remove has_msr_hv_tsc global variable
target-i386: Remove has_msr_hv_apic global variable
target-i386: Remove has_msr_mtrr global variable
target-i386: Move xsave component mask to features array
target-i386: xsave: Calculate set of xsave components on realize
target-i386: xsave: Helper function to calculate xsave area size
target-i386: xsave: Simplify CPUID[0xD,0].{EAX,EDX} calculation
target-i386: xsave: Calculate enabled components only once
target-i386: Don't try to enable PT State xsave component
target-i386: Move feature name arrays inside FeatureWordInfo
linux-user: remove #define smp_{cores, threads}
target-i386: Enable CPUID[0x8000000A] if SVM is enabled
target-i386: Automatically set level/xlevel/xlevel2 when needed
tests: Test CPUID level handling for old machines
tests: Add test code for CPUID level/xlevel handling
target-i386: Add a marker to end of the region zeroed on reset
target-i386: Remove unused X86CPUDefinition::xlevel2 field
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Functions of type FindSysbusDeviceFunc currently return an integer.
However, this return value is always ignored by the caller in
find_sysbus_device().
This changes the function type to return void, to avoid confusion over
the function semantics.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
The global variables are not necessary because we can check KVM
feature flags in X86CPU directly.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This will ensure all checks for features[FEAT_KVM] in the code
will be correct in case the KVM CPUID leaf is completely
disabled.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
The global variable is not necessary because we can check
cpu->hyperv_time directly.
We just need to ensure cpu->hyperv_time will be cleared if the
feature is not really being exposed to the guest due to missing
KVM_CAP_HYPERV_TIME capability.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
The global variable is not necessary because we can check
cpu->hyperv_vapic directly.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
The global variable is not necessary because we can check the CPU
feature flags directly.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This will reuse the existing check/enforce logic in
x86_cpu_filter_features() to check the xsave component bits
against GET_SUPPORTED_CPUID.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Instead of doing complex calculations and calling
kvm_arch_get_supported_cpuid() inside cpu_x86_cpuid(), calculate
the set of required XSAVE components earlier, at realize time.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Move the xsave area size calculation from cpu_x86_cpuid() inside
its own function. While doing it, change it to use the XSAVE area
struct sizes for the initial size, instead of the magic 0x240
number.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Instead of assigning individual bits in a loop, just copy the
values from ena_mask.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Instead of checking both env->features and ena_mask at two
different places in the CPUID code, initialize ena_mask based on
the features that are enabled for the CPU, and then clear
unsupported bits based on kvm_arch_get_supported_cpuid().
The results should be exactly the same, but it will make it
easier to move the mask calculation elsewhare, and reuse
x86_cpu_filter_features() for the kvm_arch_get_supported_cpuid()
check.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
The code that calculates the set of supported XSAVE components on
CPUID looks at ext_save_areas to find out which components should
be enabled. However, if there are zeroed entries in the
ext_save_areas array, the
((env->features[esa->feature] & esa->bits) == esa->bits)
check will always succeed and QEMU will unconditionally try to
enable the component.
Luckily this never caused any problems because the only missing
entry in ext_save_areas is the PT State component (bit 8), and
KVM currently doesn't support it (so it was cleared on ena_mask).
But the code was still incorrect and would break if KVM starts
returning CPUID[EAX=0xD,ECX=0].EAX[bit 8] as supported on
GET_SUPPORTED_CPUID.
Fix the problem by changing the code to not enable a XSAVE
component if ExtSaveArea::bits is zero.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
It makes it easier to guarantee the arrays are the right size,
and to find information when looking at the code.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Those are unneeded now that CPUState nr_{cores,threads} is always
initialized.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
SVM needs CPUID[0x8000000A] to be available. So if SVM is enabled
in a CPU model or explicitly in the command-line, adjust CPUID
xlevel to expose the CPUID[0x8000000A] leaf.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Instead of requiring users and management software to be aware of
required CPUID level/xlevel/xlevel2 values for each feature,
automatically increase those values when features need them.
This was already done for CPUID[7].EBX, and is now made generic
for all CPUID feature flags. Unit test included, to make sure we
don't break ABI on older machine-types and don't mess with the
CPUID level values if they are explicitly set by the user.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
We're going to change the way level/xlevel/xlevel2 are handled
when enabling features, but we need to keep the old behavior on
existing machine types. Add test cases for that.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Add test code that will check if the automatic CPUID level
changes are working as expected.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Instead of using cpuid_level, use an empty struct as a marker
(like we already did with {start,end}_init_save). This will avoid
accidentaly resetting the wrong fields if we change the field
ordering on CPUX86State.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
No CPU model in builtin_x86_defs has xlevel2 set, so it is always
zero. Delete the field.
Note that this is not an user-visible change. It doesn't remove
the ability to set xlevel2 on the command-line, it just removes
an unused field in builtin_x86_defs.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This uses the wrong frame size for packets composed of multiple
descriptors.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This uses the wrong frame size for packets composed of multiple
descriptors.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
ColdFire Fast Ethernet Controller uses buffer descriptors to manage
data flow to/fro receive & transmit queues. While transmitting
packets, it could continue to read buffer descriptors if a buffer
descriptor has length of zero and has crafted values in bd.flags.
Set upper limit to number of buffer descriptors.
Reported-by: Li Qiang <liqiang6-s@360.cn>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This patch fixes 2 issues:
1. Bits set in EIAC register should be cleared
from IMS when EIAM is not used.
2. Only bit that corresonds to the interrupt being
raised should be cleared.
See spec. 10.2.4.7 Interrupt Auto Clear
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Do not raise ACK interrupts when
RFCTL.ACKDIS bit is set (see spec. 10.2.5.16).
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Interrupt mask for legacy OTHER causes should
not apply to MSI-X OTHER cause.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This patch fixes incorrect check for
interrypt type being used.
PBSCLR register is valid for MSI-X only.
See spec. 10.2.3.13 MSI—X PBA Clear
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
CTRL_EXT.EIAME bit controls clearing of IAM bits,
but current code clears IMS bits instead.
See spec. 10.2.2.5 Extended Device Control Register.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Before this patch first netdev queue only was flushed.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
we only need to allocate enough memory to hold the packet. This might be
less than NET_BUFSIZE. Additionally fail early if the packet is larger
than NET_BUFSIZE.
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The tap backend is already using qemu-bridge-helper to attach tap
interface to a bridge but (unlike the bridge backend) it always uses
the default bridge name - br0.
This adds a "br" property support to the tap backend.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
hw/net/e1000e_core.c:56: warning: e1000e_set_interrupt_cause declared inline after being called
hw/net/e1000e_core.c:56: warning: previous declaration of e1000e_set_interrupt_cause was here
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Introduce the design of COLO-proxy, and how to use it.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
