5 files changed, 44 insertions, 0 deletions
diff --git a/exec.c b/exec.c
index 50519ae2ab..821bef3476 100644
--- a/exec.c
+++ b/exec.c
@@ -71,6 +71,8 @@
 #include "qemu/mmap-alloc.h"
 #endif
 
+#include "monitor/monitor.h"
+
 //#define DEBUG_SUBPAGE
 
 #if !defined(CONFIG_USER_ONLY)
@@ -1333,6 +1335,26 @@ void qemu_mutex_unlock_ramlist(void)
     qemu_mutex_unlock(&ram_list.mutex);
 }
 
+void ram_block_dump(Monitor *mon)
+{
+    RAMBlock *block;
+    char *psize;
+
+    rcu_read_lock();
+    monitor_printf(mon, "%24s %8s  %18s %18s %18s\n",
+                   "Block Name", "PSize", "Offset", "Used", "Total");
+    RAMBLOCK_FOREACH(block) {
+        psize = size_to_str(block->page_size);
+        monitor_printf(mon, "%24s %8s  0x%016" PRIx64 " 0x%016" PRIx64
+                       " 0x%016" PRIx64 "\n", block->idstr, psize,
+                       (uint64_t)block->offset,
+                       (uint64_t)block->used_length,
+                       (uint64_t)block->max_length);
+        g_free(psize);
+    }
+    rcu_read_unlock();
+}
+
 #ifdef __linux__
 /*
  * FIXME TOCTTOU: this iterates over memory backends' mem-path, which
diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
index a53f105c52..ae169011b1 100644
--- a/hmp-commands-info.hx
+++ b/hmp-commands-info.hx
@@ -788,6 +788,20 @@ Display the latest dump status.
 ETEXI
 
     {
+        .name       = "ramblock",
+        .args_type  = "",
+        .params     = "",
+        .help       = "Display system ramblock information",
+        .cmd        = hmp_info_ramblock,
+    },
+
+STEXI
+@item info ramblock
+@findex ramblock
+Dump all the ramblocks of the system.
+ETEXI
+
+    {
         .name       = "hotpluggable-cpus",
         .args_type  = "",
         .params     = "",
diff --git a/hmp.c b/hmp.c
index 524e5890de..e0ba13cb12 100644
--- a/hmp.c
+++ b/hmp.c
@@ -39,6 +39,7 @@
 #include "qemu-io.h"
 #include "qemu/cutils.h"
 #include "qemu/error-report.h"
+#include "exec/ramlist.h"
 #include "hw/intc/intc.h"
 
 #ifdef CONFIG_SPICE
@@ -2738,6 +2739,11 @@ void hmp_info_dump(Monitor *mon, const QDict *qdict)
     qapi_free_DumpQueryResult(result);
 }
 
+void hmp_info_ramblock(Monitor *mon, const QDict *qdict)
+{
+    ram_block_dump(mon);
+}
+
 void hmp_hotpluggable_cpus(Monitor *mon, const QDict *qdict)
 {
     Error *err = NULL;
diff --git a/hmp.h b/hmp.h
index 37bb65a850..d8b94ce9dc 100644
--- a/hmp.h
+++ b/hmp.h
@@ -140,6 +140,7 @@ void hmp_rocker_ports(Monitor *mon, const QDict *qdict);
 void hmp_rocker_of_dpa_flows(Monitor *mon, const QDict *qdict);
 void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict);
 void hmp_info_dump(Monitor *mon, const QDict *qdict);
+void hmp_info_ramblock(Monitor *mon, const QDict *qdict);
 void hmp_hotpluggable_cpus(Monitor *mon, const QDict *qdict);
 void hmp_info_vm_generation_id(Monitor *mon, const QDict *qdict);
 
diff --git a/include/exec/ramlist.h b/include/exec/ramlist.h
index f1c6b45df9..2e2ac6cb99 100644
--- a/include/exec/ramlist.h
+++ b/include/exec/ramlist.h
@@ -73,5 +73,6 @@ void ram_block_notifier_remove(RAMBlockNotifier *n);
 void ram_block_notify_add(void *host, size_t size);
 void ram_block_notify_remove(void *host, size_t size);
 
+void ram_block_dump(Monitor *mon);
 
 #endif /* RAMLIST_H */