Hi Nadav,
On 11/23/14, 4:16 PM, Nadav Amit wrote:
I’ll try to check it tomorrow (I don’t have access to the failing machine at the moment).
If the machine you mentioned support xsaves and what's machine you are
using?
Regards,
Wanpeng Li
Thanks for the quick response.
Nadav
On Nov 21, 2014, at 20:31, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
The first patch ensures that XSAVES is not exposed in the guest until
we emulate MSR_IA32_XSS. The second exports XSAVE data in the correct
format.
I tested these on a non-XSAVES system so they should not be completely
broken, but I need some help. I am not even sure which XSAVE states
are _not_ enabled, and thus compacted, in Linux.
Note that these patches do not add support for XSAVES in the guest yet,
since MSR_IA32_XSS is not emulated.
If they fix the bug Nadav reported, I'll add Reported-by and commit.
Thanks,
Paolo
Paolo Bonzini (2):
kvm: x86: mask out XSAVES
KVM: x86: support XSAVES usage in the host
arch/x86/kvm/cpuid.c | 11 ++++++++++-
arch/x86/kvm/x86.c | 48 +++++++++++++++++++++++++++++++++++++++++++-----
2 files changed, 53 insertions(+), 6 deletions(-)
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1.8.3.1
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