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KVM: VMX: Cache vmcs.EXIT_INTR_INFO using arch avail_reg flags

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Introduce a new "extended register" type, EXIT_INFO_2 (to pair with the
nomenclature in .get_exit_info()), and use it to cache VMX's
vmcs.EXIT_INTR_INFO.  Drop a comment in vmx_recover_nmi_blocking() that
is obsoleted by the generic caching mechanism.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200415203454.8296-6-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson
2020-04-15 13:34:54 -07:00
committed by Paolo Bonzini
parent 5addc23519
commit 8791585837
4 changed files with 27 additions and 18 deletions
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arch/x86/include/asm/kvm_host.h
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@@ -171,6 +171,7 @@ enum kvm_reg {
VCPU_EXREG_RFLAGS,
VCPU_EXREG_SEGMENTS,
VCPU_EXREG_EXIT_INFO_1,
VCPU_EXREG_EXIT_INFO_2,
};
enum {