From: Eric Northup <digitaleric@xxxxxxxxxx>
Return L2 cache and TLB information to guests.
They could have been set before, but the defaults that KVM returns will be
necessary for usermode that doesn't supply their own CPUID tables.
Signed-off-by: Eric Northup <digitaleric@xxxxxxxxxx>
Signed-off-by: Jim Mattson <jmattson@xxxxxxxxxx>
---
arch/x86/kvm/cpuid.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 72d8c492d71d4..5c604ac1093d5 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -639,6 +639,9 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
entry->edx &= boot_cpu_data.x86_power;
entry->eax = entry->ebx = entry->ecx = 0;
break;
+ case 0x80000006:
+ /* L2 cache and TLB: pass through host info. */
+ break;
case 0x80000008: {
unsigned g_phys_as = (entry->eax >> 16) & 0xff;
unsigned virt_as = max((entry->eax >> 8) & 0xff, 48U);
--
2.17.0.921.gf22659ad46-goog
