KVM: x86: fix warning on 32-bit compilation
PCIDs are only supported in 64-bit mode. No need to clear bit 63
of CR3 unless the host is 64-bit.
Reported by Fengguang Wu's autobuilder.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index f85da5c..aae5969 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -750,7 +750,9 @@
int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
{
+#ifdef CONFIG_X86_64
cr3 &= ~CR3_PCID_INVD;
+#endif
if (cr3 == kvm_read_cr3(vcpu) && !pdptrs_changed(vcpu)) {
kvm_mmu_sync_roots(vcpu);