[16/22] KVM: MMU: Track page fault data in struct vcpu

Commit Message

Joerg Roedel April 27, 2010, 10:38 a.m. UTC

None

Patch

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index d9dfc8c..8426870 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -298,6 +298,9 @@  struct kvm_vcpu_arch {
 	/* Used for two dimensional paging emulation */
 	struct kvm_mmu nested_mmu;
 
+	unsigned long fault_address;
+	int fault_error_code;
+
 	/* only needed in kvm_pv_mmu_op() path, but it's hot so
 	 * put it here to avoid allocation */
 	struct kvm_pv_mmu_op_buffer mmu_op_buffer;
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 8b27026..df92ce2 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -266,6 +266,10 @@  err:
 		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;
 }