diff options
| author | Sean Paul <seanpaul@chromium.org> | 2017-08-18 10:52:44 -0400 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2017-08-18 10:52:44 -0400 |
| commit | 0e8841ec7ee5b1ffe416c3be7743985b1896ec00 (patch) | |
| tree | 9e502f1f39c740ff7417e5078cbda6eedac1c572 /arch/x86/kvm/svm.c | |
| parent | 36436f4e933b42616c8e9ba4907dccf1329cb318 (diff) | |
| parent | 8824c751eb61ebffb053c291199932845bac88b4 (diff) | |
Merge airlied/drm-next into drm-misc-nextdrm-misc-next-2017-08-18
Archit requested this backmerge to facilitate merging some patches
depending on changes between -rc2 & -rc5
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 4d8141e533c3..1107626938cc 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2430,6 +2430,16 @@ static int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr, svm->vmcb->control.exit_code = SVM_EXIT_EXCP_BASE + nr; svm->vmcb->control.exit_code_hi = 0; svm->vmcb->control.exit_info_1 = error_code; + + /* + * FIXME: we should not write CR2 when L1 intercepts an L2 #PF exception. + * The fix is to add the ancillary datum (CR2 or DR6) to structs + * kvm_queued_exception and kvm_vcpu_events, so that CR2 and DR6 can be + * written only when inject_pending_event runs (DR6 would written here + * too). This should be conditional on a new capability---if the + * capability is disabled, kvm_multiple_exception would write the + * ancillary information to CR2 or DR6, for backwards ABI-compatibility. + */ if (svm->vcpu.arch.exception.nested_apf) svm->vmcb->control.exit_info_2 = svm->vcpu.arch.apf.nested_apf_token; else |