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[PULL 02/23] plugins: add API to return a name for a IO device
From: |
Alex Bennée |
Subject: |
[PULL 02/23] plugins: add API to return a name for a IO device |
Date: |
Thu, 18 Feb 2021 09:46:45 +0000 |
This may well end up being anonymous but it should always be unique.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Clement Deschamps <clement.deschamps@greensocs.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210213130325.14781-3-alex.bennee@linaro.org>
diff --git a/include/qemu/qemu-plugin.h b/include/qemu/qemu-plugin.h
index 5775e82c4e..c66507fe8f 100644
--- a/include/qemu/qemu-plugin.h
+++ b/include/qemu/qemu-plugin.h
@@ -330,6 +330,12 @@ struct qemu_plugin_hwaddr
*qemu_plugin_get_hwaddr(qemu_plugin_meminfo_t info,
bool qemu_plugin_hwaddr_is_io(const struct qemu_plugin_hwaddr *haddr);
uint64_t qemu_plugin_hwaddr_device_offset(const struct qemu_plugin_hwaddr
*haddr);
+/*
+ * Returns a string representing the device. The string is valid for
+ * the lifetime of the plugin.
+ */
+const char *qemu_plugin_hwaddr_device_name(const struct qemu_plugin_hwaddr *h);
+
typedef void
(*qemu_plugin_vcpu_mem_cb_t)(unsigned int vcpu_index,
qemu_plugin_meminfo_t info, uint64_t vaddr,
diff --git a/plugins/api.c b/plugins/api.c
index bbdc5a4eb4..5dc8e6f934 100644
--- a/plugins/api.c
+++ b/plugins/api.c
@@ -303,6 +303,26 @@ uint64_t qemu_plugin_hwaddr_device_offset(const struct
qemu_plugin_hwaddr *haddr
return 0;
}
+const char *qemu_plugin_hwaddr_device_name(const struct qemu_plugin_hwaddr *h)
+{
+#ifdef CONFIG_SOFTMMU
+ if (h && h->is_io) {
+ MemoryRegionSection *mrs = h->v.io.section;
+ if (!mrs->mr->name) {
+ unsigned long maddr = 0xffffffff & (uintptr_t) mrs->mr;
+ g_autofree char *temp = g_strdup_printf("anon%08lx", maddr);
+ return g_intern_string(temp);
+ } else {
+ return g_intern_string(mrs->mr->name);
+ }
+ } else {
+ return g_intern_static_string("RAM");
+ }
+#else
+ return g_intern_static_string("Invalid");
+#endif
+}
+
/*
* Queries to the number and potential maximum number of vCPUs there
* will be. This helps the plugin dimension per-vcpu arrays.
--
2.20.1
- [PULL 00/23] plugin updates (hwprofile, CF_NOCACHE, io_recompile), Alex Bennée, 2021/02/18
- [PULL 01/23] hw/virtio/pci: include vdev name in registered PCI sections, Alex Bennée, 2021/02/18
- [PULL 12/23] target/mips: Create mips_io_recompile_replay_branch, Alex Bennée, 2021/02/18
- [PULL 04/23] contrib: Don't use '#' flag of printf format, Alex Bennée, 2021/02/18
- [PULL 02/23] plugins: add API to return a name for a IO device,
Alex Bennée <=
- [PULL 10/23] exec: Move TranslationBlock typedef to qemu/typedefs.h, Alex Bennée, 2021/02/18
- [PULL 03/23] plugins: new hwprofile plugin, Alex Bennée, 2021/02/18
- [PULL 05/23] contrib: Fix some code style problems, ERROR: "foo * bar" should be "foo *bar", Alex Bennée, 2021/02/18
- [PULL 07/23] contrib: space required after that ',', Alex Bennée, 2021/02/18
- [PULL 08/23] contrib: Open brace '{' following struct go on the same line, Alex Bennée, 2021/02/18
- [PULL 06/23] contrib: Add spaces around operator, Alex Bennée, 2021/02/18
- [PULL 11/23] accel/tcg: Create io_recompile_replay_branch hook, Alex Bennée, 2021/02/18
- [PULL 15/23] tests/acceptance: add a new set of tests to exercise plugins, Alex Bennée, 2021/02/18
- [PULL 18/23] accel/tcg: re-factor non-RAM execution code, Alex Bennée, 2021/02/18
- [PULL 21/23] tests/acceptance: add a new tests to detect counting errors, Alex Bennée, 2021/02/18