KVM: VMX: Enable XSAVE/XRSTOR for guest

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This patch enable guest to use XSAVE/XRSTOR instructions.

We assume that host_xcr0 would use all possible bits that OS supported.

And we loaded xcr0 in the same way we handled fpu - do it as late as we can.

Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

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Dexuan Cui 2010-06-10 11:27:12 +08:00 • committed by Avi Kivity

parent f495c6e5e8

commit 2acf923e38

6 changed files with 146 additions and 8 deletions

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2

arch/x86/include/asm/kvm_host.h

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1

arch/x86/include/asm/vmx.h

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6

arch/x86/kvm/kvm_cache_regs.h

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13

arch/x86/kvm/vmx.c

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130

arch/x86/kvm/x86.c

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include/linux/kvm_host.h

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