diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2008-12-15 13:48:27 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2008-12-17 14:21:17 +0200 |
| commit | c330ae3a3ff3d840e97c6c781a8f03b7110d90f9 (patch) | |
| tree | 1603b3773a992b48f0970becc40905713f92a746 /libkvm/libkvm.h | |
| parent | d41c999d45aaa26158e49d7964826af512c53269 (diff) | |
kvm: qemu: Switch to new guest debug interface
This patch switches both libkvm as well as the qemu pieces over to the
new guest debug interface. It comes with full support for software-based
breakpoints (via guest code modification), hardware-assisted breakpoints
and watchpoints (x86-only so far).
Breakpoint management is done inside qemu-kvm, transparently to gdbstub
and also avoiding that the gdb frontend takes over. This allows for
running debuggers inside the guest while guest debugging it active,
because the host can cleanly tell apart host- and guest-originated
breakpoint events.
Yet improvable are x86 corner cases when using single-step ("forgotten"
debug flags on the guest's stack). And, of course, the yet empty non-x86
helper functions have to be populated.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'libkvm/libkvm.h')
| -rw-r--r-- | libkvm/libkvm.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/libkvm/libkvm.h b/libkvm/libkvm.h index 392065ba..d068fb31 100644 --- a/libkvm/libkvm.h +++ b/libkvm/libkvm.h @@ -55,7 +55,10 @@ struct kvm_callbacks { /// generic memory writes to unmapped memory (For MMIO devices) int (*mmio_write)(void *opaque, uint64_t addr, uint8_t *data, int len); - int (*debug)(void *opaque, void *env); +#ifdef KVM_CAP_SET_GUEST_DEBUG + int (*debug)(void *opaque, void *env, + struct kvm_debug_exit_arch *arch_info); +#endif /*! * \brief Called when the VCPU issues an 'hlt' instruction. * @@ -350,7 +353,9 @@ static inline int kvm_reset_mpstate(kvm_context_t kvm, int vcpu) */ int kvm_inject_irq(kvm_context_t kvm, int vcpu, unsigned irq); -int kvm_guest_debug(kvm_context_t, int vcpu, struct kvm_debug_guest *dbg); +#ifdef KVM_CAP_SET_GUEST_DEBUG +int kvm_set_guest_debug(kvm_context_t, int vcpu, struct kvm_guest_debug *dbg); +#endif #if defined(__i386__) || defined(__x86_64__) /*! |