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KVM: Fetch sub-leaf cpuid values for functions 4, 0xb, 0xd. (Amit Shah) 

CPUID functions 4, 0xb and 0xd have sub-leaf values which depend on the
input value of ECX. Store these values as well.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6566 c046a42c-6fe2-441c-8c8c-71466251a162
master
aliguori 2009-02-09 15:50:31 +00:00
parent e00b6f8099
commit 486bd5a2f2
1 changed files with 38 additions and 13 deletions
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51
target-i386/kvm.c
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@ -36,10 +36,10 @@
int kvm_arch_init_vcpu(CPUState *env)
{
struct {
struct kvm_cpuid cpuid;
struct kvm_cpuid_entry entries[100];
struct kvm_cpuid2 cpuid;
struct kvm_cpuid_entry2 entries[100];
} __attribute__((packed)) cpuid_data;
uint32_t limit, i, cpuid_i;
uint32_t limit, i, j, cpuid_i;
uint32_t eax, ebx, ecx, edx;
cpuid_i = 0;
@ -48,21 +48,46 @@ int kvm_arch_init_vcpu(CPUState *env)
limit = eax;
for (i = 0; i <= limit; i++) {
struct kvm_cpuid_entry *c = &cpuid_data.entries[cpuid_i++];
struct kvm_cpuid_entry2 *c = &cpuid_data.entries[cpuid_i++];
cpu_x86_cpuid(env, i, 0, &eax, &ebx, &ecx, &edx);
c->function = i;
c->eax = eax;
c->ebx = ebx;
c->ecx = ecx;
c->edx = edx;
switch (i) {
case 4:
case 0xb:
case 0xd:
for (j = 0; ; j++) {
cpu_x86_cpuid(env, i, j, &eax, &ebx, &ecx, &edx);
c->function = i;
c->flags = KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
c->index = j;
c->eax = eax;
c->ebx = ebx;
c->ecx = ecx;
c->edx = edx;
c = &cpuid_data.entries[++cpuid_i];
if (i == 4 && eax == 0)
break;
if (i == 0xb && !(ecx & 0xff00))
break;
if (i == 0xd && eax == 0)
break;
}
break;
default:
cpu_x86_cpuid(env, i, 0, &eax, &ebx, &ecx, &edx);
c->function = i;
c->eax = eax;
c->ebx = ebx;
c->ecx = ecx;
c->edx = edx;
break;
}
}
cpu_x86_cpuid(env, 0x80000000, 0, &eax, &ebx, &ecx, &edx);
limit = eax;
for (i = 0x80000000; i <= limit; i++) {
struct kvm_cpuid_entry *c = &cpuid_data.entries[cpuid_i++];
struct kvm_cpuid_entry2 *c = &cpuid_data.entries[cpuid_i++];
cpu_x86_cpuid(env, i, 0, &eax, &ebx, &ecx, &edx);
c->function = i;
@ -74,7 +99,7 @@ int kvm_arch_init_vcpu(CPUState *env)
cpuid_data.cpuid.nent = cpuid_i;
return kvm_vcpu_ioctl(env, KVM_SET_CPUID, &cpuid_data);
return kvm_vcpu_ioctl(env, KVM_SET_CPUID2, &cpuid_data);
}
static int kvm_has_msr_star(CPUState *env)