plugins/api: split out the vaddr/hwaddr helpers

These only work for system-mode and are NOPs for user-mode.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-28-alex.bennee@linaro.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/plugins/api-user.c b/plugins/api-user.c
new file mode 100644
index 0000000..867b420
--- /dev/null
+++ b/plugins/api-user.c
@@ -0,0 +1,40 @@
+/*
+ * QEMU Plugin API - user-mode only implementations
+ *
+ * This provides the APIs that have a user-mode specific
+ * implementations or are only relevant to user-mode.
+ *
+ * Copyright (C) 2017, Emilio G. Cota <cota@braap.org>
+ * Copyright (C) 2019-2025, Linaro
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/plugin.h"
+
+/*
+ * Virtual Memory queries - these are all NOPs for user-mode which
+ * only ever has visibility of virtual addresses.
+ */
+
+struct qemu_plugin_hwaddr *qemu_plugin_get_hwaddr(qemu_plugin_meminfo_t info,
+                                                  uint64_t vaddr)
+{
+    return NULL;
+}
+
+bool qemu_plugin_hwaddr_is_io(const struct qemu_plugin_hwaddr *haddr)
+{
+    return false;
+}
+
+uint64_t qemu_plugin_hwaddr_phys_addr(const struct qemu_plugin_hwaddr *haddr)
+{
+    return 0;
+}
+
+const char *qemu_plugin_hwaddr_device_name(const struct qemu_plugin_hwaddr *h)
+{
+    return g_intern_static_string("Invalid");
+}