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KVM: x86: Clean up CPUID 0x7 sub-leaf loop

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Refactor the sub-leaf loop for CPUID 0x7 to move the main leaf out of
said loop.  The emitted code savings is basically a mirage, as the
handling of the main leaf can easily be split to its own helper to avoid
code bloat.

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 15:56:13 -08:00 committed by Paolo Bonzini
parent 8b2fc445a7
commit 87849b1ccb
1 changed files with 5 additions and 5 deletions
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10
arch/x86/kvm/cpuid.c
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@ -573,16 +573,16 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function,
case 7: {
int i;
for (i = 0; ; ) {
do_cpuid_7_mask(&entry[i], i);
if (i == entry->eax)
break;
do_cpuid_7_mask(entry, 0);
for (i = 1; i <= entry->eax; i++) {
if (*nent >= maxnent)
goto out;
++i;
do_host_cpuid(&entry[i], function, i);
++*nent;
do_cpuid_7_mask(&entry[i], i);
}
break;
}