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>
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 86f7557..9936727 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2566,11 +2566,9 @@
return vcpu->arch.cr3;
}
-static void inject_page_fault(struct kvm_vcpu *vcpu,
- u64 addr,
- u32 err_code)
+static void inject_page_fault(struct kvm_vcpu *vcpu)
{
- vcpu->arch.mmu.inject_page_fault(vcpu, addr, err_code);
+ vcpu->arch.mmu.inject_page_fault(vcpu);
}
static void paging_free(struct kvm_vcpu *vcpu)