linux

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Christoffer Dall b5905dc12e arm/arm64: KVM: Improve kvm_exit tracepoint

The ARM architecture only saves the exit class to the HSR (ESR_EL2 for
arm64) on synchronous exceptions, not on asynchronous exceptions like an
IRQ.  However, we only report the exception class on kvm_exit, which is
confusing because an IRQ looks like it exited at some PC with the same
reason as the previous exit.  Add a lookup table for the exception index
and prepend the kvm_exit tracepoint text with the exception type to
clarify this situation.

Also resolve the exception class (EC) to a human-friendly text version
so the trace output becomes immediately usable for debugging this code.

Cc: Wei Huang <wei@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>

2015-10-22 23:01:47 +02:00

arm.c

arm/arm64: KVM: Improve kvm_exit tracepoint

2015-10-22 23:01:47 +02:00

coproc_a7.c

arm/arm64: KVM: Use set/way op trapping to track the state of the caches

2015-01-29 23:24:56 +01:00

coproc_a15.c

arm/arm64: KVM: Use set/way op trapping to track the state of the caches

2015-01-29 23:24:56 +01:00

coproc.c

arm/arm64: KVM: Use set/way op trapping to track the state of the caches