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s390x: empty function stubs in preparation for __KVM_HAVE_GUEST_DEBUG 

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 <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
David Hildenbrand 2012-09-03 12:45:13 +02:00 committed by Cornelia Huck
parent 0e96643c98
commit 8c0124490b
1 changed files with 28 additions and 0 deletions
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28
target-s390x/kvm.c
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@ -383,6 +383,26 @@ int kvm_arch_remove_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp)
return 0; 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) void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run)
{ {
} }
@ -844,6 +864,11 @@ static int handle_tsch(S390CPU *cpu)
return ret; return ret;
} }
static int kvm_arch_handle_debug_exit(S390CPU *cpu)
{
return -ENOSYS;
}
int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
{ {
S390CPU *cpu = S390_CPU(cs); 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: case KVM_EXIT_S390_TSCH:
ret = handle_tsch(cpu); ret = handle_tsch(cpu);
break; break;
case KVM_EXIT_DEBUG:
ret = kvm_arch_handle_debug_exit(cpu);
break;
default: default:
fprintf(stderr, "Unknown KVM exit: %d\n", run->exit_reason); fprintf(stderr, "Unknown KVM exit: %d\n", run->exit_reason);
break; break;