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| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-10-02 16:06:16 +0200 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2013-10-03 12:29:09 +0300 |
| commit | 4344ee981e21990f8ea14d3c9e3890b9b7b06279 (patch) | |
| tree | 745e9fc25021336e11188d010589ce0a56d7b3d9 /arch/x86/include/asm/kvm_host.h | |
| parent | d7876f1be40a16223a44355740de625849504eb5 (diff) | |
| download | op-kernel-dev-4344ee981e21990f8ea14d3c9e3890b9b7b06279.zip op-kernel-dev-4344ee981e21990f8ea14d3c9e3890b9b7b06279.tar.gz | |
KVM: x86: only copy XSAVE state for the supported features
This makes the interface more deterministic for userspace, which can expect
(after configuring only the features it supports) to get exactly the same
state from the kernel, independent of the host CPU and kernel version.
Suggested-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 35d10d1..52110d0 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -390,6 +390,7 @@ struct kvm_vcpu_arch { struct fpu guest_fpu; u64 xcr0; u64 guest_supported_xcr0; + u32 guest_xstate_size; struct kvm_pio_request pio; void *pio_data; |
