From: Jisheng Zhang <jszhang@kernel.org> To: Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Anup Patel <anup@brainfault.org>, Atish Patra <atishp@atishpatra.org>, Sebastian Andrzej Siewior <bigeasy@linutronix.de>, Thomas Gleixner <tglx@linutronix.de>, Steven Rostedt <rostedt@goodmis.org> Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org Subject: [PATCH v2 1/5] RISC-V: KVM: Record number of signal exits as a vCPU stat Date: Thu, 1 Sep 2022 01:59:16 +0800 [thread overview] Message-ID: <20220831175920.2806-2-jszhang@kernel.org> (raw) In-Reply-To: <20220831175920.2806-1-jszhang@kernel.org> 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> --- arch/riscv/include/asm/kvm_host.h | 1 + arch/riscv/kvm/vcpu.c | 2 ++ 2 files changed, 3 insertions(+) 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 d0f08d5b4282..3da459fedc28 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -28,6 +28,7 @@ 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) }; @@ -973,6 +974,7 @@ 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; } /* -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: Jisheng Zhang <jszhang@kernel.org> To: Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Anup Patel <anup@brainfault.org>, Atish Patra <atishp@atishpatra.org>, Sebastian Andrzej Siewior <bigeasy@linutronix.de>, Thomas Gleixner <tglx@linutronix.de>, Steven Rostedt <rostedt@goodmis.org> Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org Subject: [PATCH v2 1/5] RISC-V: KVM: Record number of signal exits as a vCPU stat Date: Thu, 1 Sep 2022 01:59:16 +0800 [thread overview] Message-ID: <20220831175920.2806-2-jszhang@kernel.org> (raw) In-Reply-To: <20220831175920.2806-1-jszhang@kernel.org> 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> --- arch/riscv/include/asm/kvm_host.h | 1 + arch/riscv/kvm/vcpu.c | 2 ++ 2 files changed, 3 insertions(+) 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 d0f08d5b4282..3da459fedc28 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -28,6 +28,7 @@ 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) }; @@ -973,6 +974,7 @@ 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; } /* -- 2.34.1
next prev parent reply other threads:[~2022-08-31 18:08 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-08-31 17:59 [PATCH v2 0/5] riscv: add PREEMPT_RT support Jisheng Zhang 2022-08-31 17:59 ` Jisheng Zhang 2022-08-31 17:59 ` Jisheng Zhang [this message] 2022-08-31 17:59 ` [PATCH v2 1/5] RISC-V: KVM: Record number of signal exits as a vCPU stat Jisheng Zhang 2022-08-31 17:59 ` [PATCH v2 2/5] RISC-V: KVM: Use generic guest entry infrastructure Jisheng Zhang 2022-08-31 17:59 ` Jisheng Zhang 2022-08-31 17:59 ` [PATCH v2 3/5] riscv: select HAVE_POSIX_CPU_TIMERS_TASK_WORK Jisheng Zhang 2022-08-31 17:59 ` Jisheng Zhang 2022-08-31 17:59 ` [PATCH v2 4/5] riscv: add lazy preempt support Jisheng Zhang 2022-08-31 17:59 ` Jisheng Zhang 2022-09-04 15:16 ` Guo Ren 2022-09-04 15:16 ` Guo Ren 2022-09-05 6:34 ` Sebastian Andrzej Siewior 2022-09-05 6:34 ` Sebastian Andrzej Siewior 2022-09-05 8:33 ` Guo Ren 2022-09-05 8:33 ` Guo Ren 2022-09-05 8:46 ` Sebastian Andrzej Siewior 2022-09-05 8:46 ` Sebastian Andrzej Siewior 2022-09-06 1:46 ` Guo Ren 2022-09-06 1:46 ` Guo Ren 2022-09-05 12:58 ` Jisheng Zhang 2022-09-05 12:58 ` Jisheng Zhang 2022-08-31 17:59 ` [PATCH v2 5/5] riscv: Allow to enable RT Jisheng Zhang 2022-08-31 17:59 ` Jisheng Zhang 2022-09-01 7:04 ` [PATCH v2 0/5] riscv: add PREEMPT_RT support Sebastian Andrzej Siewior 2022-09-01 7:04 ` Sebastian Andrzej Siewior 2022-09-01 13:44 ` Jisheng Zhang 2022-09-01 13:44 ` Jisheng Zhang 2022-09-01 16:41 ` Conor.Dooley 2022-09-01 16:41 ` Conor.Dooley 2022-09-02 13:09 ` Jisheng Zhang 2022-09-02 13:09 ` Jisheng Zhang 2022-09-02 13:29 ` Conor.Dooley 2022-09-02 13:29 ` Conor.Dooley 2022-11-11 14:32 ` Sebastian Andrzej Siewior 2022-11-11 14:32 ` Sebastian Andrzej Siewior 2022-11-11 14:34 ` Conor.Dooley 2022-11-11 14:34 ` Conor.Dooley 2022-11-12 21:40 ` Conor.Dooley 2022-11-12 21:40 ` Conor.Dooley 2023-03-14 13:07 ` Schaffner, Tobias 2023-03-14 13:07 ` Schaffner, Tobias
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