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author | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-01 11:26:27 +0300 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-01 11:26:27 +0300 |
commit | 380609445cff6ee7b6c7e43bbdc953985b45a6ed (patch) | |
tree | 2526fa1599b19804e8cd9823415919ad757f07e7 /virt/kvm/arm/perf.c | |
parent | 09d952c971a58c897eb7ea7d41516e7d953bb65d (diff) | |
parent | 8f7f4fe756bd5cfef73cf8234445081385bdbf7d (diff) | |
download | linux-380609445cff6ee7b6c7e43bbdc953985b45a6ed.tar.xz |
Merge tag 'kvmarm-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for Linux 5.8:
- Move the arch-specific code into arch/arm64/kvm
- Start the post-32bit cleanup
- Cherry-pick a few non-invasive pre-NV patches
Diffstat (limited to 'virt/kvm/arm/perf.c')
-rw-r--r-- | virt/kvm/arm/perf.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/virt/kvm/arm/perf.c b/virt/kvm/arm/perf.c deleted file mode 100644 index d45b8b9a4415..000000000000 --- a/virt/kvm/arm/perf.c +++ /dev/null @@ -1,57 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Based on the x86 implementation. - * - * Copyright (C) 2012 ARM Ltd. - * Author: Marc Zyngier <marc.zyngier@arm.com> - */ - -#include <linux/perf_event.h> -#include <linux/kvm_host.h> - -#include <asm/kvm_emulate.h> - -static int kvm_is_in_guest(void) -{ - return kvm_get_running_vcpu() != NULL; -} - -static int kvm_is_user_mode(void) -{ - struct kvm_vcpu *vcpu; - - vcpu = kvm_get_running_vcpu(); - - if (vcpu) - return !vcpu_mode_priv(vcpu); - - return 0; -} - -static unsigned long kvm_get_guest_ip(void) -{ - struct kvm_vcpu *vcpu; - - vcpu = kvm_get_running_vcpu(); - - if (vcpu) - return *vcpu_pc(vcpu); - - return 0; -} - -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, -}; - -int kvm_perf_init(void) -{ - return perf_register_guest_info_callbacks(&kvm_guest_cbs); -} - -int kvm_perf_teardown(void) -{ - return perf_unregister_guest_info_callbacks(&kvm_guest_cbs); -} |