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KVM: nVMX: Use vpid_sync_vcpu_addr() to emulate INVVPID with address

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Use vpid_sync_vcpu_addr() to emulate the "individual address" variant of
INVVPID now that said function handles the fallback case of the (host)
CPU not supporting "individual address".

Note, the "vpid == 0" checks in the vpid_sync_*() helpers aren't
actually redundant with the "!operand.vpid" check in handle_invvpid(),
as the vpid passed to vpid_sync_vcpu_addr() is a KVM (host) controlled
value, i.e. vpid02 can be zero even if operand.vpid is non-zero.

No functional change intended.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200320212833.3507-14-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2020-03-20 14:28:09 -07:00 committed by Paolo Bonzini
parent ca431c0cc3
commit bc41d0c40e
1 changed files with 1 additions and 5 deletions
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6
arch/x86/kvm/vmx/nested.c
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@ -5234,11 +5234,7 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
is_noncanonical_address(operand.gla, vcpu))
return nested_vmx_failValid(vcpu,
VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
if (cpu_has_vmx_invvpid_individual_addr())
__invvpid(VMX_VPID_EXTENT_INDIVIDUAL_ADDR,
vpid02, operand.gla);
else
vpid_sync_context(vpid02);
vpid_sync_vcpu_addr(vpid02, operand.gla);
break;
case VMX_VPID_EXTENT_SINGLE_CONTEXT:
case VMX_VPID_EXTENT_SINGLE_NON_GLOBAL: