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Commit eafc4ed2 authored by James Hogan's avatar James Hogan Committed by Paolo Bonzini
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MIPS: KVM: Dump guest tlbs if kvm_get_inst() fails 



If kvm_get_inst() fails to find a guest TLB mapping for the guest PC
then dump the guest TLB entries. The contents of the guest TLB is likely
to be more interesting than the host TLB entries.

Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 6398da13

arch/mips/kvm/mmu.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -346,6 +346,7 @@ u32 kvm_get_inst(u32 *opc, struct kvm_vcpu *vcpu) 
				kvm_err("%s: get_user_failed for %p, vcpu: %p, ASID: %#lx\n",

				kvm_err("%s: get_user_failed for %p, vcpu: %p, ASID: %#lx\n",

					__func__, opc, vcpu, read_c0_entryhi());

					__func__, opc, vcpu, read_c0_entryhi());

				kvm_mips_dump_host_tlbs();

				kvm_mips_dump_host_tlbs();

				kvm_mips_dump_guest_tlbs(vcpu);

				local_irq_restore(flags);

				local_irq_restore(flags);

				return KVM_INVALID_INST;

				return KVM_INVALID_INST;

			}

			}