KVM: Push struct x86_exception into walk_addr()

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 14 insertions, 18 deletions

diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 3ac39de444ec..ad5a5a28b96e 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -72,7 +72,7 @@ struct guest_walker {
         unsigned pt_access;
         unsigned pte_access;
         gfn_t gfn;
-        u32 error_code;
+        struct x86_exception fault;
 };
 
 static gfn_t gpte_to_gfn_lvl(pt_element_t gpte, int lvl)
@@ -266,21 +266,23 @@ walk:
         return 1;
 
 error:
-        walker->error_code = 0;
+        walker->fault.vector = PF_VECTOR;
+        walker->fault.error_code_valid = true;
+        walker->fault.error_code = 0;
         if (present)
-                walker->error_code |= PFERR_PRESENT_MASK;
+                walker->fault.error_code |= PFERR_PRESENT_MASK;
 
-        walker->error_code |= write_fault | user_fault;
+        walker->fault.error_code |= write_fault | user_fault;
 
         if (fetch_fault && mmu->nx)
-                walker->error_code |= PFERR_FETCH_MASK;
+                walker->fault.error_code |= PFERR_FETCH_MASK;
         if (rsvd_fault)
-                walker->error_code |= PFERR_RSVD_MASK;
+                walker->fault.error_code |= PFERR_RSVD_MASK;
 
         vcpu->arch.fault.address    = addr;
-        vcpu->arch.fault.error_code = walker->error_code;
+        vcpu->arch.fault.error_code = walker->fault.error_code;
 
-        trace_kvm_mmu_walker_error(walker->error_code);
+        trace_kvm_mmu_walker_error(walker->fault.error_code);
         return 0;
 }
 
@@ -688,11 +690,8 @@ static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr, u32 access,
         if (r) {
                 gpa = gfn_to_gpa(walker.gfn);
                 gpa |= vaddr & ~PAGE_MASK;
-        } else if (exception) {
-                exception->vector = PF_VECTOR;
-                exception->error_code_valid = true;
-                exception->error_code = walker.error_code;
-        }
+        } else if (exception)
+                *exception = walker.fault;
 
         return gpa;
 }
@@ -710,11 +709,8 @@ static gpa_t FNAME(gva_to_gpa_nested)(struct kvm_vcpu *vcpu, gva_t vaddr,
         if (r) {
                 gpa = gfn_to_gpa(walker.gfn);
                 gpa |= vaddr & ~PAGE_MASK;
-        } else if (exception) {
-                exception->vector = PF_VECTOR;
-                exception->error_code_valid = true;
-                exception->error_code = walker.error_code;
-        }
+        } else if (exception)
+                *exception = walker.fault;
 
         return gpa;
 }