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KVM: Get all cpuid values from function 2 (Amit Shah)

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cpuid function 2 can have multiple values to describe cache behaviour.
Loop till we have fetched all the values.

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@6567 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-02-09 15:50:36 +00:00
parent 486bd5a2f2
commit a36b1029e2
1 changed files with 26 additions and 0 deletions
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26
target-i386/kvm.c
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@ -51,6 +51,32 @@ int kvm_arch_init_vcpu(CPUState *env)
struct kvm_cpuid_entry2 *c = &cpuid_data.entries[cpuid_i++];
switch (i) {
case 2: {
/* Keep reading function 2 till all the input is received */
int times;
cpu_x86_cpuid(env, i, 0, &eax, &ebx, &ecx, &edx);
times = eax & 0xff;
c->function = i;
c->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
c->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
c->eax = eax;
c->ebx = ebx;
c->ecx = ecx;
c->edx = edx;
for (j = 1; j < times; ++j) {
cpu_x86_cpuid(env, i, 0, &eax, &ebx, &ecx, &edx);
c->function = i;
c->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
c->eax = eax;
c->ebx = ebx;
c->ecx = ecx;
c->edx = edx;
}
break;
}
case 4:
case 0xb:
case 0xd: