diff options
Diffstat (limited to 'tools/testing/selftests/kvm/include/s390x/ucall.h')
| -rw-r--r-- | tools/testing/selftests/kvm/include/s390x/ucall.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/s390x/ucall.h b/tools/testing/selftests/kvm/include/s390x/ucall.h new file mode 100644 index 000000000000..47ad4b1fbccb --- /dev/null +++ b/tools/testing/selftests/kvm/include/s390x/ucall.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef SELFTEST_KVM_UCALL_H +#define SELFTEST_KVM_UCALL_H + +#include "kvm_util_base.h" + +static inline void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa) +{ +} + +static inline void ucall_arch_do_ucall(vm_vaddr_t uc) +{ + /* Exit via DIAGNOSE 0x501 (normally used for breakpoints) */ + asm volatile ("diag 0,%0,0x501" : : "a"(uc) : "memory"); +} + +#endif |