Refactoring the core logic around KVM_CREATE_VM into its own separate function
so that it can be called from other functions in subsequent patches. There is
no functional change in this patch.
CC: pbonzini@xxxxxxxxxx
CC: zhao1.liu@xxxxxxxxx
CC: cfontana@xxxxxxx
CC: armbru@xxxxxxxxxx
CC: qemu-trivial@xxxxxxxxxx
Reviewed-by: Zhao Liu <zhao1.liu@xxxxxxxxx>
Reviewed-by: Claudio Fontana <cfontana@xxxxxxx>
Signed-off-by: Ani Sinha <anisinha@xxxxxxxxxx>
---
accel/kvm/kvm-all.c | 86 ++++++++++++++++++++++++++++-----------------
1 file changed, 53 insertions(+), 33 deletions(-)
changelog:
v2: s/fprintf/warn_report as suggested by zhao
v3: s/warn_report/error_report. function names adjusted to conform to
other names. fprintf -> error_report() moved to its own patch.
v4: added tags and rebased.
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index d9f477bb06..391279c995 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -2385,6 +2385,57 @@ uint32_t kvm_dirty_ring_size(void)
return kvm_state->kvm_dirty_ring_size;
}
+static int kvm_create_vm(MachineState *ms, KVMState *s, int type)
+{
+ int ret;
+
+ do {
+ ret = kvm_ioctl(s, KVM_CREATE_VM, type);
+ } while (ret == -EINTR);
+
+ if (ret < 0) {
+ error_report("ioctl(KVM_CREATE_VM) failed: %d %s", -ret,
+ strerror(-ret));
+
+#ifdef TARGET_S390X
+ if (ret == -EINVAL) {
+ error_printf("Host kernel setup problem detected. Please verify:");
+ error_printf("\n- for kernels supporting the"
+ " switch_amode or user_mode parameters, whether");
+ error_printf(" user space is running in primary address space\n");
+ error_printf("- for kernels supporting the vm.allocate_pgste "
+ "sysctl, whether it is enabled\n");
+ }
+#elif defined(TARGET_PPC)
+ if (ret == -EINVAL) {
+ error_printf("PPC KVM module is not loaded. Try modprobe kvm_%s.\n",
+ (type == 2) ? "pr" : "hv");
+ }
+#endif
+ }
+
+ return ret;
+}
+
+static int kvm_machine_type(MachineState *ms)
+{
+ MachineClass *mc = MACHINE_GET_CLASS(ms);
+ int type;
+
+ if (object_property_find(OBJECT(current_machine), "kvm-type")) {
+ g_autofree char *kvm_type;
+ kvm_type = object_property_get_str(OBJECT(current_machine),
+ "kvm-type",
+ &error_abort);
+ type = mc->kvm_type(ms, kvm_type);
+ } else if (mc->kvm_type) {
+ type = mc->kvm_type(ms, NULL);
+ } else {
+ type = kvm_arch_get_default_type(ms);
+ }
+ return type;
+}
+
static int kvm_init(MachineState *ms)
{
MachineClass *mc = MACHINE_GET_CLASS(ms);
@@ -2467,45 +2518,14 @@ static int kvm_init(MachineState *ms)
}
s->as = g_new0(struct KVMAs, s->nr_as);
- if (object_property_find(OBJECT(current_machine), "kvm-type")) {
- g_autofree char *kvm_type = object_property_get_str(OBJECT(current_machine),
- "kvm-type",
- &error_abort);
- type = mc->kvm_type(ms, kvm_type);
- } else if (mc->kvm_type) {
- type = mc->kvm_type(ms, NULL);
- } else {
- type = kvm_arch_get_default_type(ms);
- }
-
+ type = kvm_machine_type(ms);
if (type < 0) {
ret = -EINVAL;
goto err;
}
- do {
- ret = kvm_ioctl(s, KVM_CREATE_VM, type);
- } while (ret == -EINTR);
-
+ ret = kvm_create_vm(ms, s, type);
if (ret < 0) {
- error_report("ioctl(KVM_CREATE_VM) failed: %d %s", -ret,
- strerror(-ret));
-
-#ifdef TARGET_S390X
- if (ret == -EINVAL) {
- error_printf("Host kernel setup problem detected. Please verify:");
- error_printf("\n- for kernels supporting the"
- " switch_amode or user_mode parameters, whether");
- error_printf(" user space is running in primary address space\n");
- error_printf("- for kernels supporting the vm.allocate_pgste "
- "sysctl, whether it is enabled\n");
- }
-#elif defined(TARGET_PPC)
- if (ret == -EINVAL) {
- error_printf("PPC KVM module is not loaded. Try modprobe kvm_%s.\n",
- (type == 2) ? "pr" : "hv");
- }
-#endif
goto err;
}
--
2.42.0
