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Peter Anvin" , linux-riscv@lists.infradead.org, Jiri Olsa , kvmarm@lists.cs.columbia.edu, Stefano Stabellini , Joerg Roedel , linux-csky@vger.kernel.org, xen-devel@lists.xenproject.org, Zhu Lingshan , Namhyung Kim , Artem Kashkanov , linux-arm-kernel@lists.infradead.org, Jim Mattson , Like Xu , Sean Christopherson , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Vitaly Kuznetsov X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list Reply-To: Sean Christopherson List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Drop arm64's version of the callbacks in favor of the callbacks provided by generic KVM, which are semantically identical. Implement the "get ip" hook as needed. Signed-off-by: Sean Christopherson --- arch/arm64/include/asm/kvm_host.h | 6 +---- arch/arm64/kvm/arm.c | 5 ++++ arch/arm64/kvm/perf.c | 38 ------------------------------- 3 files changed, 6 insertions(+), 43 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 007c38d77fd9..12e8d789e1ac 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -673,11 +673,7 @@ int io_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa); void kvm_perf_init(void); #ifdef CONFIG_PERF_EVENTS -void kvm_register_perf_callbacks(void); -static inline void kvm_unregister_perf_callbacks(void) -{ - __perf_unregister_guest_info_callbacks(); -} +#define __KVM_WANT_PERF_CALLBACKS #else static inline void kvm_register_perf_callbacks(void) {} static inline void kvm_unregister_perf_callbacks(void) {} diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index ec386971030d..dfc8078dd4f9 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -503,6 +503,11 @@ bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu) return vcpu_mode_priv(vcpu); } +unsigned long kvm_arch_vcpu_get_ip(struct kvm_vcpu *vcpu) +{ + return *vcpu_pc(vcpu); +} + /* Just ensure a guest exit from a particular CPU */ static void exit_vm_noop(void *info) { diff --git a/arch/arm64/kvm/perf.c b/arch/arm64/kvm/perf.c index 2556b0a3b096..ad9fdc2f2f70 100644 --- a/arch/arm64/kvm/perf.c +++ b/arch/arm64/kvm/perf.c @@ -13,44 +13,6 @@ DEFINE_STATIC_KEY_FALSE(kvm_arm_pmu_available); -#ifdef CONFIG_PERF_EVENTS -static int kvm_is_in_guest(void) -{ - return true; -} - -static int kvm_is_user_mode(void) -{ - struct kvm_vcpu *vcpu = kvm_get_running_vcpu(); - - if (WARN_ON_ONCE(!vcpu)) - return 0; - - return !vcpu_mode_priv(vcpu); -} - -static unsigned long kvm_get_guest_ip(void) -{ - struct kvm_vcpu *vcpu = kvm_get_running_vcpu(); - - if (WARN_ON_ONCE(!vcpu)) - return 0; - - return *vcpu_pc(vcpu); -} - -static struct perf_guest_info_callbacks kvm_guest_cbs = { - .is_in_guest = kvm_is_in_guest, - .is_user_mode = kvm_is_user_mode, - .get_guest_ip = kvm_get_guest_ip, -}; - -void kvm_register_perf_callbacks(void) -{ - __perf_register_guest_info_callbacks(&kvm_guest_cbs); -} -#endif /* CONFIG_PERF_EVENTS*/ - void kvm_perf_init(void) { if (kvm_pmu_probe_pmuver() != 0xf && !is_protected_kvm_enabled()) -- 2.33.0.259.gc128427fd7-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm