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root / target-i386 @ 6c0d7ee8

Name Size
TODO 1.1 kB
cpu.h 25.9 kB
exec.h 9.2 kB
helper.c 57.4 kB
helper.h 6.2 kB
helper_template.h 8.7 kB
kvm.c 25.5 kB
machine.c 9.5 kB
op_helper.c 158.1 kB
ops_sse.h 57.2 kB
ops_sse_header.h 11.4 kB
svm.h 5.8 kB
translate.c 251.5 kB

Latest revisions

# Date Author Comment
6c0d7ee8 06/29/2009 09:52 pm Andre Przywara

preserve the hypervisor bit while KVM trims the CPUID bits

The KVM kernel will disable all bits in CPUID which are not present in
the host. As this is mostly true for the hypervisor bit (1.ecx),
preserve its value before the trim and restore it afterwards....
6d2edc43 06/29/2009 09:52 pm Andre Przywara

allow hypervisor CPUID bit to be overriden

KVM defaults to the hypervisor CPUID bit to be set, whereas pure
QEMU clears it. On some occasions one wants to set or clear it the
other way round (for instance to get HyperV running inside a guest).

Move the bit-set to be done before the command line parsing and...
fe4bce09 06/29/2009 09:52 pm Andre Przywara

introduce -cpu host target

Although the guest's CPUID bits can be controlled in a fine grained way
in QEMU, a simple way to inject the host CPU is missing. This is handy
for KVM desktop virtualization, where one wants the guest to support the
full host feature set....
f441bee8 06/29/2009 09:52 pm Andre Przywara

CPUID Fn8000_0001.EAX is family/model/stepping, not features

Signed-off-by: Andre Przywara <>
Signed-off-by: Anthony Liguori <>
6c1f42fe 06/29/2009 09:52 pm Andre Przywara

fix KVMs GET_SUPPORTED_CPUID feature usage

If we want to trim the user provided CPUID bits for KVM to be not greater
than that of the host, we should not remove the bits after we sent
them to the kernel.
This fixes the masking of features that are not present on the host by...
671e4676 06/29/2009 09:52 pm Andre Przywara

remove CPUID host hacks

KVM provides an in-kernel feature to disable CPUID bits that are not
present in the current host. So there is no need here to duplicate this
work. Additionally allows 3DNow! on capable processors, since the
restriction seems to apply to QEMU/TCG only....
b09ea7d5 06/22/2009 06:15 pm Gleb Natapov

Handle init/sipi in a main cpu exec loop. (v2)

This should fix compilation problem in case of CONFIG_USER_ONLY.

Currently INIT/SIPI is handled in the context of CPU that sends IPI.
This patch changes this to handle them like all other events in a main
cpu exec loop. When KVM will gain thread per vcpu capability it will...
ef768138 06/16/2009 11:36 pm Andre Przywara

allow CPUID vendor override

KVM-enabled QEMU will always report the vendor ID of the physical CPU it is
running on. Allow to override this if explicitly requested on the
command line. It will not suffice to name a CPU type (like -cpu phenom),
but you have to explicitly set the vendor: -cpu phenom,vendor=AuthenticAMD...
538f3686 06/16/2009 11:36 pm Nitin A Kamble

QEMU KVM: i386: Fix the cpu reset state

As per the IA32 processor manual, the accessed bit is set to 1 in the
processor state after reset. qemu pc cpu_reset code was missing this
accessed bit setting.

Signed-off-by: Nitin A Kamble <>...
a2397807 05/22/2009 06:50 pm Jan Kiszka

x86: Add support for resume flag

Signed-off-by: Jan Kiszka <>

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