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| author | Christoffer Dall | 2015-08-30 15:55:22 +0200 |
|---|---|---|
| committer | Christoffer Dall | 2015-10-22 23:01:47 +0200 |
| commit | b5905dc12ed4254f7e0aac62bab48f002181f639 (patch) | |
| tree | 7da7842ddd6102d57cef1f9e651bd84295b5cf68 /virt | |
| parent | KVM: arm/arm64: Fix vGIC documentation (diff) | |
| download | kernel-qcow2-linux-b5905dc12ed4254f7e0aac62bab48f002181f639.tar.gz kernel-qcow2-linux-b5905dc12ed4254f7e0aac62bab48f002181f639.tar.xz kernel-qcow2-linux-b5905dc12ed4254f7e0aac62bab48f002181f639.zip | |
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>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions