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MIPS: KVM: Dump guest tlbs if kvm_get_inst() fails

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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: James 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: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
James Hogan 2016-06-14 09:40:16 +01:00 committed by Paolo Bonzini
parent 6398da1391
commit eafc4ed206
1 changed files with 1 additions and 0 deletions
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arch/mips/kvm/mmu.c
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@ -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",
__func__, opc, vcpu, read_c0_entryhi());
kvm_mips_dump_host_tlbs();
kvm_mips_dump_guest_tlbs(vcpu);
local_irq_restore(flags);
return KVM_INVALID_INST;
}