diff mbox

[55/81] s390x/kvm: fix cmma reset for KVM

Message ID 1490051325-3770-56-git-send-email-mdroth@linux.vnet.ibm.com
State New
Headers show

Commit Message

Michael Roth March 20, 2017, 11:08 p.m. UTC 
From: Christian Borntraeger <borntraeger@de.ibm.com>

We must reset the CMMA states for normal memory (when not on mem path),
but the current code does the opposite. This was unnoticed for some time
as the kernel since 4.6 also had a bug which mostly disabled the paging
optimizations.

Fixes: 07059effd14e ("s390x/kvm: let the CPU model control CMM(A)")
Cc: qemu-stable@nongnu.org # v2.8
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
(cherry picked from commit 0cf4d747cb8d053e6a6161aadfd3531fa1a62be1)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 target-s390x/kvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
index 97afe02..5fc4ed1 100644
--- a/target-s390x/kvm.c
+++ b/target-s390x/kvm.c
@@ -197,7 +197,7 @@  void kvm_s390_cmma_reset(void)
         .attr = KVM_S390_VM_MEM_CLR_CMMA,
     };
 
-    if (!mem_path || !kvm_s390_cmma_available()) {
+    if (mem_path || !kvm_s390_cmma_available()) {
         return;
     }