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| author | Bibo Mao <maobibo@loongson.cn> | 2025-03-18 11:48:08 +0300 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2025-03-18 11:48:08 +0300 |
| commit | 6bfb3a715de924f8ddd4d782e2e2fdd2f5966fc7 (patch) | |
| tree | d83f9a54bd8a41cba08d0659cbf51aea8b05af00 | |
| parent | 2bf463d7619a9c0b0017856011042d5c17828cff (diff) | |
| download | linux-6bfb3a715de924f8ddd4d782e2e2fdd2f5966fc7.tar.xz | |
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: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
| -rw-r--r-- | arch/loongarch/kvm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/loongarch/kvm/main.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/loongarch/kvm/Kconfig b/arch/loongarch/kvm/Kconfig index 97a811077ac3..40eea6da7c25 100644 --- a/arch/loongarch/kvm/Kconfig +++ b/arch/loongarch/kvm/Kconfig @@ -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 diff --git a/arch/loongarch/kvm/main.c b/arch/loongarch/kvm/main.c index b6864d6e5ec8..d165cd38c6bb 100644 --- a/arch/loongarch/kvm/main.c +++ b/arch/loongarch/kvm/main.c @@ -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) |