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| author | Paolo Bonzini <pbonzini@redhat.com> | 2019-09-14 01:26:27 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-09-14 10:25:02 +0300 |
| commit | f7eea636c3d505fe6f1d1066234f1aaf7171b681 (patch) | |
| tree | 9130f21fdcaf7da6057af6f683e6ef23df255e50 | |
| parent | a7f89616b7376495424f682b6086e0c391a89a1d (diff) | |
| download | linux-f7eea636c3d505fe6f1d1066234f1aaf7171b681.tar.xz | |
KVM: nVMX: handle page fault in vmread
The implementation of vmread to memory is still incomplete, as it
lacks the ability to do vmread to I/O memory just like vmptrst.
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/x86/kvm/vmx/nested.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index ced9fba32598..a3cba321b5c5 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -4540,6 +4540,7 @@ static int handle_vmread(struct kvm_vcpu *vcpu) int len; gva_t gva = 0; struct vmcs12 *vmcs12; + struct x86_exception e; short offset; if (!nested_vmx_check_permission(vcpu)) @@ -4588,7 +4589,8 @@ 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 */ - kvm_write_guest_virt_system(vcpu, gva, &field_value, len, NULL); + if (kvm_write_guest_virt_system(vcpu, gva, &field_value, len, &e)) + kvm_inject_page_fault(vcpu, &e); } return nested_vmx_succeed(vcpu); |