diff options
| author | Wei Huang <wei@redhat.com> | 2015-01-12 11:53:36 -0500 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2015-01-15 12:43:30 +0100 |
| commit | 0d97f884810410b2e0515e29424fe1ec5357176f (patch) | |
| tree | 5018c8653ef597d733b3397c1f5690432513eaa8 /arch/arm64/include/asm/kvm_emulate.h | |
| parent | 065c0034823b513d3ca95760a2ad1765e3ef629c (diff) | |
arm/arm64: KVM: add tracing support for arm64 exit handler
arm64 uses its own copy of exit handler (arm64/kvm/handle_exit.c).
Currently this file doesn't hook up with any trace points. As a result
users might not see certain events (e.g. HVC & WFI) while using ftrace
with arm64 KVM. This patch fixes this issue by adding a new trace file
and defining two trace events (one of which is shared by wfi and wfe)
for arm64. The new trace points are then linked with related functions
in handle_exit.c.
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm64/include/asm/kvm_emulate.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_emulate.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 8127e45e2637..a6fa2d2cd41c 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -126,6 +126,11 @@ static inline phys_addr_t kvm_vcpu_get_fault_ipa(const struct kvm_vcpu *vcpu) return ((phys_addr_t)vcpu->arch.fault.hpfar_el2 & HPFAR_MASK) << 8; } +static inline u32 kvm_vcpu_hvc_get_imm(const struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) & ESR_EL2_HVC_IMM_MASK; +} + static inline bool kvm_vcpu_dabt_isvalid(const struct kvm_vcpu *vcpu) { return !!(kvm_vcpu_get_hsr(vcpu) & ESR_EL2_ISV); |