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| author | Amit Tomar <amittomer25@gmail.com> | 2015-11-26 10:09:43 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2015-12-14 11:30:00 +0000 |
| commit | b19e6892a90e7c9d15fde0a08516ec891a4e7d54 (patch) | |
| tree | fb7416f7a164ef16e0280a56288d2cc79ab696f2 /arch/arm/kvm/mmio.c | |
| parent | 8cdb654abe5730654d0385382c4e877a011bb8c8 (diff) | |
| download | lwn-b19e6892a90e7c9d15fde0a08516ec891a4e7d54.tar.gz lwn-b19e6892a90e7c9d15fde0a08516ec891a4e7d54.zip | |
KVM: arm/arm64: Count guest exit due to various reasons
It would add guest exit statistics to debugfs, this can be helpful
while measuring KVM performance.
[ Renamed some of the field names - Christoffer ]
Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm/kvm/mmio.c')
| -rw-r--r-- | arch/arm/kvm/mmio.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c index 3a10c9f1d0a4..7f33b2056ae6 100644 --- a/arch/arm/kvm/mmio.c +++ b/arch/arm/kvm/mmio.c @@ -210,8 +210,11 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run, if (!ret) { /* We handled the access successfully in the kernel. */ + vcpu->stat.mmio_exit_kernel++; kvm_handle_mmio_return(vcpu, run); return 1; + } else { + vcpu->stat.mmio_exit_user++; } run->exit_reason = KVM_EXIT_MMIO; |