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| author | Paolo Bonzini <pbonzini@redhat.com> | 2017-07-05 12:38:06 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-07-10 14:44:07 +0200 |
| commit | 70bcd708dfd1de453905212c9c5c755b1844772b (patch) | |
| tree | 30e2c1d870e230600ba78009f044837149bbd9af /arch/x86 | |
| parent | b49defe83659cefbb1763d541e779da32594ab10 (diff) | |
| download | linux-70bcd708dfd1de453905212c9c5c755b1844772b.tar.bz2 | |
KVM: vmx: expose more information for KVM_INTERNAL_ERROR_DELIVERY_EV exits
This exit ended up being reported, but the currently exposed data does not provide
much of a starting point for debugging. In the reported case, the vmexit was
an EPT misconfiguration (MMIO access). Let userspace report ethe exit qualification
and, if relevant, the GPA.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f76efad248ab..7592a18ecc1c 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8418,9 +8418,15 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu) exit_reason != EXIT_REASON_TASK_SWITCH)) { vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR; vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_DELIVERY_EV; - vcpu->run->internal.ndata = 2; + vcpu->run->internal.ndata = 3; vcpu->run->internal.data[0] = vectoring_info; vcpu->run->internal.data[1] = exit_reason; + vcpu->run->internal.data[2] = vcpu->arch.exit_qualification; + if (exit_reason == EXIT_REASON_EPT_MISCONFIG) { + vcpu->run->internal.ndata++; + vcpu->run->internal.data[3] = + vmcs_read64(GUEST_PHYSICAL_ADDRESS); + } return 0; } |