libvirt/SOURCES/qemu-domain-Check-arch-in-qemuDomainMakeCPUMigratable.patch

From 909564c3652d6f6fb5b68ebc5830c6cb524ac713 Mon Sep 17 00:00:00 2001
From: Jiri Denemark <jdenemar@redhat.com>
Date: Mon, 11 Mar 2024 15:34:37 +0100
Subject: [PATCH] qemu: domain: Check arch in qemuDomainMakeCPUMigratable

The content is arch specific and checking for Icelake-Server CPU model
on non-x86 architectures does not make sense.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
---
 src/qemu/qemu_domain.c           | 14 ++++++++++----
 src/qemu/qemu_domain.h           |  3 ++-
 src/qemu/qemu_migration_cookie.c |  2 +-
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 8c85446c3de..31a6509166d 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -6588,10 +6588,15 @@ qemuDomainDefCopy(virQEMUDriver *driver,
 
 
 int
-qemuDomainMakeCPUMigratable(virCPUDef *cpu)
+qemuDomainMakeCPUMigratable(virArch arch,
+                            virCPUDef *cpu)
 {
-    if (cpu->mode == VIR_CPU_MODE_CUSTOM &&
-        STREQ_NULLABLE(cpu->model, "Icelake-Server")) {
+    if (cpu->mode != VIR_CPU_MODE_CUSTOM ||
+        !cpu->model ||
+        !ARCH_IS_X86(arch))
+        return 0;
+
+    if (STREQ(cpu->model, "Icelake-Server")) {
         /* Originally Icelake-Server CPU model contained pconfig CPU feature.
          * It was never actually enabled and thus it was removed. To enable
          * migration to QEMU 3.1.0 (with both new and old libvirt), we
@@ -6781,7 +6786,8 @@ qemuDomainDefFormatBufInternal(virQEMUDriver *driver,
                 return -1;
         }
 
-        if (def->cpu && qemuDomainMakeCPUMigratable(def->cpu) < 0)
+        if (def->cpu &&
+            qemuDomainMakeCPUMigratable(def->os.arch, def->cpu) < 0)
             return -1;
 
         /* Old libvirt doesn't understand <audio> elements so
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 98c188cc8f6..07b03182587 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -1045,7 +1045,8 @@ qemuDomainSupportsCheckpointsBlockjobs(virDomainObj *vm)
     G_GNUC_WARN_UNUSED_RESULT;
 
 int
-qemuDomainMakeCPUMigratable(virCPUDef *cpu);
+qemuDomainMakeCPUMigratable(virArch arch,
+                            virCPUDef *cpu);
 
 int
 qemuDomainInitializePflashStorageSource(virDomainObj *vm,
diff --git a/src/qemu/qemu_migration_cookie.c b/src/qemu/qemu_migration_cookie.c
index 4361949cca4..c53d42a0184 100644
--- a/src/qemu/qemu_migration_cookie.c
+++ b/src/qemu/qemu_migration_cookie.c
@@ -545,7 +545,7 @@ qemuMigrationCookieAddCPU(qemuMigrationCookie *mig,
 
     mig->cpu = virCPUDefCopy(vm->def->cpu);
 
-    if (qemuDomainMakeCPUMigratable(mig->cpu) < 0)
+    if (qemuDomainMakeCPUMigratable(vm->def->os.arch, mig->cpu) < 0)
         return -1;
 
     mig->flags |= QEMU_MIGRATION_COOKIE_CPU;