diff options
| author | Alex Bennée <alex.bennee@linaro.org> | 2015-12-17 13:37:15 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-12-17 13:37:15 +0000 |
| commit | e4482ab7e3849fb5e01ccacfc13f424cc6acb8d5 (patch) | |
| tree | d979134653b55d5b9b7966f644825cf307ef1eec /target-arm/kvm_arm.h | |
| parent | 26ae59348585e09d9386633984da211c87d52d4f (diff) | |
target-arm: kvm - add support for HW assisted debug
This adds basic support for HW assisted debug. The ioctl interface to
KVM allows us to pass an implementation defined number of break and
watch point registers. When KVM_GUESTDBG_USE_HW is specified these
debug registers will be installed in place on the world switch into the
guest.
The hardware is actually capable of more advanced matching but it is
unclear if this expressiveness is available via the gdbstub protocol.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-5-git-send-email-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/kvm_arm.h')
| -rw-r--r-- | target-arm/kvm_arm.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/target-arm/kvm_arm.h b/target-arm/kvm_arm.h index fde5d30564..07f0c72199 100644 --- a/target-arm/kvm_arm.h +++ b/target-arm/kvm_arm.h @@ -224,4 +224,25 @@ const char *gicv3_class_name(void); */ bool kvm_arm_handle_debug(CPUState *cs, struct kvm_debug_exit_arch *debug_exit); +/** + * kvm_arm_hw_debug_active: + * @cs: CPU State + * + * Return: TRUE if any hardware breakpoints in use. + */ + +bool kvm_arm_hw_debug_active(CPUState *cs); + +/** + * kvm_arm_copy_hw_debug_data: + * + * @ptr: kvm_guest_debug_arch structure + * + * Copy the architecture specific debug registers into the + * kvm_guest_debug ioctl structure. + */ +struct kvm_guest_debug_arch; + +void kvm_arm_copy_hw_debug_data(struct kvm_guest_debug_arch *ptr); + #endif |