UPSTREAM: 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
BUG=chromium:846515
TEST=build/boot on hana with USE=kvm_host
Change-Id: Ieea0a7160ee229c3cfe76edc4f34f0412dc5db22
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
(cherry picked from commit 91314cb0053877991fd7b4749bb4b54d6bd6992f)
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1088051
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
2 files changed
