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author | Marc Zyngier <maz@kernel.org> | 2020-05-13 11:40:34 +0100 |
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committer | Marc Zyngier <maz@kernel.org> | 2020-05-16 15:03:59 +0100 |
commit | 9ed24f4b712b855dcf7be3025b75b051cb73a2b7 (patch) | |
tree | 2979a0b689ba9ba130504f12b0e7b4562f2fac22 /virt/kvm/arm/perf.c | |
parent | 2ef96a5bb12be62ef75b5828c0aab838ebb29cb8 (diff) | |
download | lwn-9ed24f4b712b855dcf7be3025b75b051cb73a2b7.tar.gz lwn-9ed24f4b712b855dcf7be3025b75b051cb73a2b7.zip |
KVM: arm64: Move virt/kvm/arm to arch/arm64
Now that the 32bit KVM/arm host is a distant memory, let's move the
whole of the KVM/arm64 code into the arm64 tree.
As they said in the song: Welcome Home (Sanitarium).
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200513104034.74741-1-maz@kernel.org
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); -} |