[PATCH v2 2/3] cpus: Introduce SysemuCPUOps::qmp_dump_skeys() callback

[Philippe Mathieu-Daudé]

Allow generic CPUs to dump the architecture storage keys.

Being specific to s390x, it is only implemented there.

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
 include/hw/core/sysemu-cpu-ops.h | 6 ++++++
 target/s390x/cpu-system.c        | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/include/hw/core/sysemu-cpu-ops.h b/include/hw/core/sysemu-cpu-ops.h
index 877892373f9..d3534cba65c 100644
--- a/include/hw/core/sysemu-cpu-ops.h
+++ b/include/hw/core/sysemu-cpu-ops.h
@@ -47,6 +47,12 @@ typedef struct SysemuCPUOps {
      *       a memory access with the specified memory transaction attributes.
      */
     int (*asidx_from_attrs)(CPUState *cpu, MemTxAttrs attrs);
+
+    /**
+     * @qmp_dump_skeys: Callback to dump guest's storage keys to @filename.
+     */
+    void (*qmp_dump_skeys)(const char *filename, Error **errp);
+
     /**
      * @get_crash_info: Callback for reporting guest crash information in
      * GUEST_PANICKED events.
diff --git a/target/s390x/cpu-system.c b/target/s390x/cpu-system.c
index 9b380e343c2..ab7bb8d5cf5 100644
--- a/target/s390x/cpu-system.c
+++ b/target/s390x/cpu-system.c
@@ -38,6 +38,7 @@
 #include "system/system.h"
 #include "system/tcg.h"
 #include "hw/core/sysemu-cpu-ops.h"
+#include "hw/s390x/storage-keys.h"
 
 bool s390_cpu_has_work(CPUState *cs)
 {
@@ -179,6 +180,7 @@ static const struct SysemuCPUOps s390_sysemu_ops = {
     .get_phys_page_debug = s390_cpu_get_phys_page_debug,
     .get_crash_info = s390_cpu_get_crash_info,
     .write_elf64_note = s390_cpu_write_elf64_note,
+    .qmp_dump_skeys = s390_qmp_dump_skeys,
     .legacy_vmsd = &vmstate_s390_cpu,
 };
 
-- 
2.47.1