KVM: nVMX: Add nested msr load/restore algorithm

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Several hypervisors need MSR auto load/restore feature.
We read MSRs from VM-entry MSR load area which specified by L1,
and load them via kvm_set_msr in the nested entry.
When nested exit occurs, we get MSRs via kvm_get_msr, writing
them to L1`s MSR store area. After this, we read MSRs from VM-exit
MSR load area, and load them via kvm_set_msr.

Signed-off-by: Wincy Van <fanwenyi0529@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Wincy Van 2014-12-11 08:52:58 +03:00 • committed by Paolo Bonzini

parent b1940cd21c

commit ff651cb613

4 changed files with 97 additions and 11 deletions

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5

arch/x86/include/uapi/asm/vmx.h

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101

arch/x86/kvm/vmx.c

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1

arch/x86/kvm/x86.c

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virt/kvm/kvm_main.c

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