diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2010-09-10 17:30:46 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:52:33 +0200 |
| commit | 8df25a328a6ca3bd0f048278f4d5ae0a1f6fadc1 (patch) | |
| tree | 613b4e3c09fa90a7a52b4283cc0687ce547bd5c7 /arch/x86/kvm/paging_tmpl.h | |
| parent | 3241f22da85d26505b39f525a88f52ebd1235975 (diff) | |
KVM: MMU: Track page fault data in struct vcpu
This patch introduces a struct with two new fields in
vcpu_arch for x86:
* fault.address
* fault.error_code
This will be used to correctly propagate page faults back
into the guest when we could have either an ordinary page
fault or a nested page fault. In the case of a nested page
fault the fault-address is different from the original
address that should be walked. So we need to keep track
about the real fault-address.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/paging_tmpl.h')
| -rw-r--r-- | arch/x86/kvm/paging_tmpl.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 68ee1b7fa89f..d07f48a06f09 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -258,6 +258,10 @@ error: walker->error_code |= PFERR_FETCH_MASK; if (rsvd_fault) walker->error_code |= PFERR_RSVD_MASK; + + vcpu->arch.fault.address = addr; + vcpu->arch.fault.error_code = walker->error_code; + trace_kvm_mmu_walker_error(walker->error_code); return 0; } @@ -521,7 +525,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, */ if (!r) { pgprintk("%s: guest page fault\n", __func__); - inject_page_fault(vcpu, addr, walker.error_code); + inject_page_fault(vcpu); vcpu->arch.last_pt_write_count = 0; /* reset fork detector */ return 0; } |