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KVM: x86: Refactor CPUID 0x4 and 0x8000001d handling

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Refactoring the sub-leaf handling for CPUID 0x4/0x8000001d to eliminate
a one-off variable and its associated brackets.

No functional change intended.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2020-03-02 15:56:18 -08:00 committed by Paolo Bonzini
parent 74fa0bc7f0
commit c862903963
1 changed files with 6 additions and 10 deletions
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16
arch/x86/kvm/cpuid.c
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@ -545,20 +545,16 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function,
break;
/* functions 4 and 0x8000001d have additional index. */
case 4:
case 0x8000001d: {
int cache_type;
/* read more entries until cache_type is zero */
for (i = 1; ; ++i) {
cache_type = entry[i - 1].eax & 0x1f;
if (!cache_type)
break;
case 0x8000001d:
/*
* Read entries until the cache type in the previous entry is
* zero, i.e. indicates an invalid entry.
*/
for (i = 1; entry[i - 1].eax & 0x1f; ++i) {
if (!do_host_cpuid(&entry[i], nent, maxnent, function, i))
goto out;
}
break;
}
case 6: /* Thermal management */
entry->eax = 0x4; /* allow ARAT */
entry->ebx = 0;