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KVM: nVMX: vmread should not set rflags to specify success in case of #PF

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[ Upstream commit a4d956b9390418623ae5d07933e2679c68b6f83c ]

In case writing to vmread destination operand result in a #PF, vmread
should not call nested_vmx_succeed() to set rflags to specify success.
Similar to as done in VMPTRST (See handle_vmptrst()).

Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: stable@vger.kernel.org
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaohe Lin 2019-12-28 14:25:24 +08:00 • committed by Greg Kroah-Hartman
commit 09bd0033df
1 changed files with 3 additions and 1 deletions
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4
arch/x86/kvm/vmx/nested.c
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@ -4663,8 +4663,10 @@ static int handle_vmread(struct kvm_vcpu *vcpu)
vmx_instruction_info, true, len, &gva))
return 1;
/* _system ok, nested_vmx_check_permission has verified cpl=0 */
if (kvm_write_guest_virt_system(vcpu, gva, &field_value, len, &e))
if (kvm_write_guest_virt_system(vcpu, gva, &field_value, len, &e)) {
kvm_inject_page_fault(vcpu, &e);
return 1;
}
}
return nested_vmx_succeed(vcpu);