plugins: add plugin API to read guest memory

Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240827215329.248434-2-rowanbhart@gmail.com>
[AJB: tweaked cpu_memory_rw_debug call]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240916085400.1046925-17-alex.bennee@linaro.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/plugins/api.c b/plugins/api.c
index 3316d4a04d..24ea64e2de 100644
--- a/plugins/api.c
+++ b/plugins/api.c
@@ -560,6 +560,26 @@ GArray *qemu_plugin_get_registers(void)
     return create_register_handles(regs);
 }
 
+bool qemu_plugin_read_memory_vaddr(vaddr addr, GByteArray *data, size_t len)
+{
+    g_assert(current_cpu);
+
+    if (len == 0) {
+        return false;
+    }
+
+    g_byte_array_set_size(data, len);
+
+    int result = cpu_memory_rw_debug(current_cpu, addr, data->data,
+                                     data->len, false);
+
+    if (result < 0) {
+        return false;
+    }
+
+    return true;
+}
+
 int qemu_plugin_read_register(struct qemu_plugin_register *reg, GByteArray *buf)
 {
     g_assert(current_cpu);