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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2013-12-19 21:28:51 +0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-12-20 22:22:49 +0400 |
| commit | 989c6b34f6a9480e397b170cc62237e89bf4fdb9 (patch) | |
| tree | 2c0336c3ead7c6378e0c25744df50f777bfd4098 /virt/kvm | |
| parent | 4c4d563b49830a66537c3f51070dad74d7a81d3a (diff) | |
| download | linux-989c6b34f6a9480e397b170cc62237e89bf4fdb9.tar.xz | |
KVM: MMU: handle invalid root_hpa at __direct_map
It is possible for __direct_map to be called on invalid root_hpa
(-1), two examples:
1) try_async_pf -> can_do_async_pf
-> vmx_interrupt_allowed -> nested_vmx_vmexit
2) vmx_handle_exit -> vmx_interrupt_allowed -> nested_vmx_vmexit
Then to load_vmcs12_host_state and kvm_mmu_reset_context.
Check for this possibility, let fault exception be regenerated.
BZ: https://bugzilla.redhat.com/show_bug.cgi?id=924916
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt/kvm')
0 files changed, 0 insertions, 0 deletions