Commit 54ce3f7f authored by Jisheng Zhang's avatar Jisheng Zhang Committed by Anup Patel
Browse files

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: default avatarJisheng Zhang <jszhang@kernel.org>
Reviewed-by: default avatarGuo Ren <guoren@kernel.org>
Reviewed-by: default avatarAndrew Jones <ajones@ventanamicro.com>
Signed-off-by: default avatarAnup Patel <anup@brainfault.org>
parent f493cdc9

arch/riscv/include/asm/kvm_host.h

+1 −0
Original line number Diff line number Diff line
@@ -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;

};

arch/riscv/kvm/vcpu.c

+2 −0
Original line number Diff line number Diff line
@@ -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;

		}



		/*