Revision 3ed444e9 kvm-all.c
| b/kvm-all.c | ||
|---|---|---|
| 1207 | 1207 |
return 0; |
| 1208 | 1208 |
} |
| 1209 | 1209 |
|
| 1210 |
static int kvm_max_vcpus(KVMState *s) |
|
| 1211 |
{
|
|
| 1212 |
int ret; |
|
| 1213 |
|
|
| 1214 |
/* Find number of supported CPUs using the recommended |
|
| 1215 |
* procedure from the kernel API documentation to cope with |
|
| 1216 |
* older kernels that may be missing capabilities. |
|
| 1217 |
*/ |
|
| 1218 |
ret = kvm_check_extension(s, KVM_CAP_MAX_VCPUS); |
|
| 1219 |
if (ret) {
|
|
| 1220 |
return ret; |
|
| 1221 |
} |
|
| 1222 |
ret = kvm_check_extension(s, KVM_CAP_NR_VCPUS); |
|
| 1223 |
if (ret) {
|
|
| 1224 |
return ret; |
|
| 1225 |
} |
|
| 1226 |
|
|
| 1227 |
return 4; |
|
| 1228 |
} |
|
| 1229 |
|
|
| 1210 | 1230 |
int kvm_init(void) |
| 1211 | 1231 |
{
|
| 1212 | 1232 |
static const char upgrade_note[] = |
| ... | ... | |
| 1216 | 1236 |
const KVMCapabilityInfo *missing_cap; |
| 1217 | 1237 |
int ret; |
| 1218 | 1238 |
int i; |
| 1239 |
int max_vcpus; |
|
| 1219 | 1240 |
|
| 1220 | 1241 |
s = g_malloc0(sizeof(KVMState)); |
| 1221 | 1242 |
|
| ... | ... | |
| 1256 | 1277 |
goto err; |
| 1257 | 1278 |
} |
| 1258 | 1279 |
|
| 1280 |
max_vcpus = kvm_max_vcpus(s); |
|
| 1281 |
if (smp_cpus > max_vcpus) {
|
|
| 1282 |
ret = -EINVAL; |
|
| 1283 |
fprintf(stderr, "Number of SMP cpus requested (%d) exceeds max cpus " |
|
| 1284 |
"supported by KVM (%d)\n", smp_cpus, max_vcpus); |
|
| 1285 |
goto err; |
|
| 1286 |
} |
|
| 1287 |
|
|
| 1259 | 1288 |
s->vmfd = kvm_ioctl(s, KVM_CREATE_VM, 0); |
| 1260 | 1289 |
if (s->vmfd < 0) {
|
| 1261 | 1290 |
#ifdef TARGET_S390X |
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