From: David Hildenbrand <d...@linux.vnet.ibm.com>
This patch creates empty function stubs (used by the gdbserver) in preparation
for the hw debugging support by kvm on s390, which will enable the
__KVM_HAVE_GUEST_DEBUG define in the linux headers and require these methods on
the qemu side.
Signed-off-by: David Hildenbrand <d...@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jf...@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.h...@de.ibm.com>
Cc: qemu-sta...@nongnu.org
---
target-s390x/kvm.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
index 56b9af7..2b2dcdc 100644
--- a/target-s390x/kvm.c
+++ b/target-s390x/kvm.c
@@ -383,6 +383,26 @@ int kvm_arch_remove_sw_breakpoint(CPUState *cs, struct
kvm_sw_breakpoint *bp)
return 0;
}
+int kvm_arch_insert_hw_breakpoint(target_ulong addr,
+ target_ulong len, int type)
+{
+ return -ENOSYS;
+}
+
+int kvm_arch_remove_hw_breakpoint(target_ulong addr,
+ target_ulong len, int type)
+{
+ return -ENOSYS;
+}
+
+void kvm_arch_remove_all_hw_breakpoints(void)
+{
+}
+
+void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg)
+{
+}
+
void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run)
{
}
@@ -844,6 +864,11 @@ static int handle_tsch(S390CPU *cpu)
return ret;
}
+static int kvm_arch_handle_debug_exit(S390CPU *cpu)
+{
+ return -ENOSYS;
+}
+
int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
{
S390CPU *cpu = S390_CPU(cs);
@@ -859,6 +884,9 @@ int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
case KVM_EXIT_S390_TSCH:
ret = handle_tsch(cpu);
break;
+ case KVM_EXIT_DEBUG:
+ ret = kvm_arch_handle_debug_exit(cpu);
+ break;
default:
fprintf(stderr, "Unknown KVM exit: %d\n", run->exit_reason);
break;
--
1.8.5.5
