diff options
Diffstat (limited to 'arch/mips/kvm/emulate.c')
| -rw-r--r-- | arch/mips/kvm/emulate.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c index 1d399396e486..19eaeda6975c 100644 --- a/arch/mips/kvm/emulate.c +++ b/arch/mips/kvm/emulate.c @@ -864,11 +864,17 @@ static void kvm_mips_invalidate_guest_tlb(struct kvm_vcpu *vcpu, /* No need to flush for entries which are already invalid */ if (!((tlb->tlb_lo[0] | tlb->tlb_lo[1]) & ENTRYLO_V)) return; + /* Don't touch host kernel page tables or TLB mappings */ + if ((unsigned long)tlb->tlb_hi > 0x7fffffff) + return; /* User address space doesn't need flushing for KSeg2/3 changes */ user = tlb->tlb_hi < KVM_GUEST_KSEG0; preempt_disable(); + /* Invalidate page table entries */ + kvm_trap_emul_invalidate_gva(vcpu, tlb->tlb_hi & VPN2_MASK, user); + /* * Probe the shadow host TLB for the entry being overwritten, if one * matches, invalidate it |