| Message ID | 1398345160-4830-3-git-send-email-agraf@suse.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Apr 24, 2014 at 03:12:29PM +0200, Alexander Graf wrote: > 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> Acked-by: Paul Mackerras <paulus@samba.org> -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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); }
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(-)