[PATCH 0/3] Infinite loops in microcode while running guests

From: Paolo Bonzini
Date: Tue Nov 10 2015 - 07:23:14 EST

Yes, these can happen. The issue is that benign exceptions are
delivered serially, but two of them (#DB and #AC) can also happen
during exception delivery itself. The subsequent infinite stream
of exceptions causes the processor to never exit guest mode.


Eric Northup (1):
KVM: x86: work around infinite loop in microcode when #AC is delivered

Paolo Bonzini (2):
KVM: svm: unconditionally intercept #DB
KVM: x86: rename update_db_bp_intercept to update_bp_intercept

arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/include/uapi/asm/svm.h | 1 +
arch/x86/kvm/svm.c | 22 +++++++++++-----------
arch/x86/kvm/vmx.c | 7 +++++--
arch/x86/kvm/x86.c | 2 +-
5 files changed, 19 insertions(+), 15 deletions(-)


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/