KVM: PPC: e500: enable magic page
This is a shared page used for paravirtualization. It is always present
in the guest kernel's effective address space at the address indicated
by the hypercall that enables it.
The physical address specified by the hypercall is not used, as
e500 does not have real mode.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 0ecbecb..4538956 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -472,6 +472,17 @@
gpa_t gpaddr;
gfn_t gfn;
+#ifdef CONFIG_KVM_E500
+ if (!(vcpu->arch.shared->msr & MSR_PR) &&
+ (eaddr & PAGE_MASK) == vcpu->arch.magic_page_ea) {
+ kvmppc_map_magic(vcpu);
+ kvmppc_account_exit(vcpu, DTLB_VIRT_MISS_EXITS);
+ r = RESUME_GUEST;
+
+ break;
+ }
+#endif
+
/* Check the guest TLB. */
gtlb_index = kvmppc_mmu_dtlb_index(vcpu, eaddr);
if (gtlb_index < 0) {