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arm/arm64: KVM: Add exit reaons to kvm_exit event tracing
authorWei Huang <wei@redhat.com>
Fri, 30 Jan 2015 18:09:26 +0000 (13:09 -0500)
committerPaolo Bonzini <pbonzini@redhat.com>
Mon, 23 Feb 2015 21:28:48 +0000 (22:28 +0100)
commit91314cb0053877991fd7b4749bb4b54d6bd6992f
tree45abedcea81e4f5201c32c2db6df2f0bc3133ef2tree | snapshot
parenta050dfb21cc22ac0c666d52531040c1bc48184cccommit | diff
arm/arm64: KVM: Add exit reaons to kvm_exit event tracing

This patch extends trace_kvm_exit() to include KVM exit reasons
(i.e. EC of HSR). The tracing function then dumps both exit reason
and PC of vCPU, shown as the following. Tracing tools can use this
new exit_reason field to better understand the behavior of guest VMs.

886.301252: kvm_exit:             HSR_EC: 0x0024, PC: 0xfffffe0000506b28

Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
arch/arm/kvm/arm.c diff | blob | history
arch/arm/kvm/trace.h diff | blob | history
Domain: System / Kernel;