[PATCH 02/13] KVM: PPC: Book3S: PR: Fix C/R bit setting

[Alexander Graf <agraf@suse.de>]

Commit 9308ab8e2d made C/R HTAB updates go byte-wise into the target HTAB.
However, it didn't update the guest's copy of the HTAB, but instead the
host local copy of it.

Write to the guest's HTAB instead.

Signed-off-by: Alexander Graf <agraf@suse.de>
CC: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kvm/book3s_32_mmu.c | 2 +-
 arch/powerpc/kvm/book3s_64_mmu.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c
index 76a64ce..60fc3f4 100644
--- a/arch/powerpc/kvm/book3s_32_mmu.c
+++ b/arch/powerpc/kvm/book3s_32_mmu.c
@@ -270,7 +270,7 @@ static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr,
 	   page */
 	if (found) {
 		u32 pte_r = pteg[i+1];
-		char __user *addr = (char __user *) &pteg[i+1];
+		char __user *addr = (char __user *) (ptegp + (i+1) * sizeof(u32));
 
 		/*
 		 * Use single-byte writes to update the HPTE, to
diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
index 4a77725..e9854e7 100644
--- a/arch/powerpc/kvm/book3s_64_mmu.c
+++ b/arch/powerpc/kvm/book3s_64_mmu.c
@@ -348,14 +348,14 @@ do_second:
 		 * non-PAPR platforms such as mac99, and this is
 		 * what real hardware does.
 		 */
-		char __user *addr = (char __user *) &pteg[i+1];
+                char __user *addr = (char __user *) (ptegp + (i + 1) * sizeof(u64));
 		r |= HPTE_R_R;
 		put_user(r >> 8, addr + 6);
 	}
 	if (iswrite && gpte->may_write && !(r & HPTE_R_C)) {
 		/* Set the dirty flag */
 		/* Use a single byte write */
-		char __user *addr = (char __user *) &pteg[i+1];
+                char __user *addr = (char __user *) (ptegp + (i + 1) * sizeof(u64));
 		r |= HPTE_R_C;
 		put_user(r, addr + 7);
 	}
-- 
1.8.1.4