Commit 6bfb3a71 authored by Bibo Mao's avatar Bibo Mao Committed by Huacai Chen
Browse files

LoongArch: KVM: Register perf callbacks for guest 



Add selection for GUEST_PERF_EVENTS if KVM is enabled, also add perf
callback register when KVM module is loading.

Signed-off-by: default avatarBibo Mao <maobibo@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 2bf463d7

arch/loongarch/kvm/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ config KVM 
	select KVM_MMIO

	select KVM_XFER_TO_GUEST_WORK

	select SCHED_INFO

	select GUEST_PERF_EVENTS if PERF_EVENTS

	help

	  Support hosting virtualized guest machines using

	  hardware virtualization extensions. You will need

arch/loongarch/kvm/main.c

+3 −0
Original line number Diff line number Diff line
@@ -394,6 +394,7 @@ static int kvm_loongarch_env_init(void) 
	}



	kvm_init_gcsr_flag();

	kvm_register_perf_callbacks(NULL);



	/* Register LoongArch IPI interrupt controller interface. */

	ret = kvm_loongarch_register_ipi_device();
@@ -425,6 +426,8 @@ static void kvm_loongarch_env_exit(void) 
		}

		kfree(kvm_loongarch_ops);

	}



	kvm_unregister_perf_callbacks();

}



static int kvm_loongarch_init(void)