KVM: x86: Add a framework for supporting MSR-based features

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Provide a new KVM capability that allows bits within MSRs to be recognized
as features.  Two new ioctls are added to the /dev/kvm ioctl routine to
retrieve the list of these MSRs and then retrieve their values. A kvm_x86_ops
callback is used to determine support for the listed MSR-based features.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[Tweaked documentation. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>

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Tom Lendacky 2018-02-21 13:39:51 -06:00 • committed by Radim Krčmář

parent d4858aaf6b

commit 801e459a6f

6 changed files with 114 additions and 17 deletions

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40

Documentation/virtual/kvm/api.txt

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2

arch/x86/include/asm/kvm_host.h

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6

arch/x86/kvm/svm.c

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6

arch/x86/kvm/vmx.c

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75

arch/x86/kvm/x86.c

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2

include/uapi/linux/kvm.h

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