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authorAlex Bennée <alex.bennee@linaro.org>2017-11-16 18:39:19 +0300
committerChristoffer Dall <christoffer.dall@linaro.org>2017-11-29 18:46:19 +0300
commit696673d192f52c2c5a702224ee21f005318a844b (patch)
treea7a25cf68c0197ab08ccf120b5b16c714092e8a1 /arch/arm/include
parent5553b142be11e794ebc0805950b2e8313f93d718 (diff)
downloadlinux-696673d192f52c2c5a702224ee21f005318a844b.tar.xz
KVM: arm/arm64: debug: Introduce helper for single-step
After emulating instructions we may want return to user-space to handle single-step debugging. Introduce a helper function, which, if single-step is enabled, sets the run structure for return and returns true. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/kvm_host.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 242151ea6908..a9f7d3f47134 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -285,6 +285,11 @@ static inline void kvm_arm_init_debug(void) {}
static inline void kvm_arm_setup_debug(struct kvm_vcpu *vcpu) {}
static inline void kvm_arm_clear_debug(struct kvm_vcpu *vcpu) {}
static inline void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu) {}
+static inline bool kvm_arm_handle_step_debug(struct kvm_vcpu *vcpu,
+ struct kvm_run *run)
+{
+ return false;
+}
int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
struct kvm_device_attr *attr);