diff options
Diffstat (limited to 'target-i386/kvm.c')
| -rw-r--r-- | target-i386/kvm.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c index c94897f5d3..d74dbc152c 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -98,6 +98,19 @@ static struct kvm_cpuid2 *try_get_cpuid(KVMState *s, int max) return cpuid; } +/* Run KVM_GET_SUPPORTED_CPUID ioctl(), allocating a buffer large enough + * for all entries. + */ +static struct kvm_cpuid2 *get_supported_cpuid(KVMState *s) +{ + struct kvm_cpuid2 *cpuid; + int max = 1; + while ((cpuid = try_get_cpuid(s, max)) == NULL) { + max *= 2; + } + return cpuid; +} + struct kvm_para_features { int cap; int feature; @@ -166,15 +179,11 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function, uint32_t index, int reg) { struct kvm_cpuid2 *cpuid; - int max; uint32_t ret = 0; uint32_t cpuid_1_edx; bool found = false; - max = 1; - while ((cpuid = try_get_cpuid(s, max)) == NULL) { - max *= 2; - } + cpuid = get_supported_cpuid(s); struct kvm_cpuid_entry2 *entry = cpuid_find_entry(cpuid, function, index); if (entry) { |