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| author | Jisheng Zhang <jszhang@kernel.org> | 2022-10-02 07:49:16 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2022-10-02 07:49:16 +0300 |
| commit | 54ce3f7ff3395f12ad142d46b628606ab1e926ef (patch) | |
| tree | ac64ae1d15a488f0e8771ceb11a748e458130ab1 /arch/riscv | |
| parent | f493cdc92d9b9e9a0db0a9049609457e43a56066 (diff) | |
| download | linux-54ce3f7ff3395f12ad142d46b628606ab1e926ef.tar.xz | |
RISC-V: KVM: Record number of signal exits as a vCPU stat
Record a statistic indicating the number of times a vCPU has exited
due to a pending signal.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/riscv/kvm/vcpu.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index 60c517e4d576..dbbf43d52623 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -67,6 +67,7 @@ struct kvm_vcpu_stat { u64 mmio_exit_kernel; u64 csr_exit_user; u64 csr_exit_kernel; + u64 signal_exits; u64 exits; }; diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c index f55d15a8a410..5414bf56bce5 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -29,6 +29,7 @@ const struct _kvm_stats_desc kvm_vcpu_stats_desc[] = { STATS_DESC_COUNTER(VCPU, mmio_exit_kernel), STATS_DESC_COUNTER(VCPU, csr_exit_user), STATS_DESC_COUNTER(VCPU, csr_exit_kernel), + STATS_DESC_COUNTER(VCPU, signal_exits), STATS_DESC_COUNTER(VCPU, exits) }; @@ -993,6 +994,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu) if (signal_pending(current)) { ret = -EINTR; run->exit_reason = KVM_EXIT_INTR; + ++vcpu->stat.signal_exits; } /* |