[libvirt] [PATCH 5/6] qemu: Always set locked memory limit for ppc64 domains

[Andrea Bolognani]

Unlike other architectures, ppc64 domains need to lock memory
even when VFIO is not used.

Change qemuDomainRequiresMlock() to reflect this fact.
---
 src/qemu/qemu_domain.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 1f73709..2c0f5af 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3836,8 +3836,9 @@ qemuDomainGetMlockLimitBytes(virDomainDefPtr def)
 /**
  * @def: domain definition
  *
- * Returns ture if the locked memory limit needs to be set or updated due to
- * configuration or passthrough devices.
+ * Returns true if the locked memory limit needs to be set or updated because
+ * of domain configuration, VFIO passthrough devices or architecture-specific
+ * requirements.
  * */
 bool
 qemuDomainRequiresMlock(virDomainDefPtr def)
@@ -3847,6 +3848,10 @@ qemuDomainRequiresMlock(virDomainDefPtr def)
     if (def->mem.locked)
         return true;
 
+    /* ppc64 domains need to lock some memory even when VFIO is not used */
+    if (ARCH_IS_PPC64(def->os.arch))
+        return true;
+
     for (i = 0; i < def->nhostdevs; i++) {
         virDomainHostdevDefPtr dev = def->hostdevs[i];
 
-- 
2.5.0