diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2021-06-24 12:38:20 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-07-09 18:20:27 +0200 |
| commit | d7795d3cc52fa8c297908912a9541ecd4f810f03 (patch) | |
| tree | 6993231691049b4c57dcbb1d9f4fbc0cedf27e78 | |
| parent | 819b8b13c1bc48080f4ca526c6e12d58a27ea887 (diff) | |
modules: check arch and block load on mismatch
Add module_allow_arch() to set the target architecture.
In case a module is limited to some arch verify arches
match and ignore the module if not.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-19-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | include/qemu/module.h | 1 | ||||
| -rw-r--r-- | softmmu/vl.c | 3 | ||||
| -rw-r--r-- | util/module.c | 29 |
3 files changed, 33 insertions, 0 deletions
diff --git a/include/qemu/module.h b/include/qemu/module.h index 9cd305de59..3deac0078b 100644 --- a/include/qemu/module.h +++ b/include/qemu/module.h @@ -72,6 +72,7 @@ void module_call_init(module_init_type type); bool module_load_one(const char *prefix, const char *lib_name, bool mayfail); void module_load_qom_one(const char *type); void module_load_qom_all(void); +void module_allow_arch(const char *arch); /** * DOC: module info annotation macros diff --git a/softmmu/vl.c b/softmmu/vl.c index 190b71a0f2..2004d57108 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -126,6 +126,8 @@ #include "sysemu/iothread.h" #include "qemu/guest-random.h" +#include "config-host.h" + #define MAX_VIRTIO_CONSOLES 1 typedef struct BlockdevOptionsQueueEntry { @@ -2740,6 +2742,7 @@ void qemu_init(int argc, char **argv, char **envp) #ifdef CONFIG_MODULES module_init_info(qemu_modinfo); + module_allow_arch(TARGET_NAME); #endif qemu_init_subsystems(); diff --git a/util/module.c b/util/module.c index acaaecad56..065aed09ff 100644 --- a/util/module.c +++ b/util/module.c @@ -117,12 +117,33 @@ static const QemuModinfo module_info_stub[] = { { /* end of list */ } }; static const QemuModinfo *module_info = module_info_stub; +static const char *module_arch; void module_init_info(const QemuModinfo *info) { module_info = info; } +void module_allow_arch(const char *arch) +{ + module_arch = arch; +} + +static bool module_check_arch(const QemuModinfo *modinfo) +{ + if (modinfo->arch) { + if (!module_arch) { + /* no arch set -> ignore all */ + return false; + } + if (strcmp(module_arch, modinfo->arch) != 0) { + /* mismatch */ + return false; + } + } + return true; +} + static int module_load_file(const char *fname, bool mayfail, bool export_symbols) { GModule *g_module; @@ -224,6 +245,13 @@ bool module_load_one(const char *prefix, const char *lib_name, bool mayfail) g_hash_table_add(loaded_modules, module_name); for (modinfo = module_info; modinfo->name != NULL; modinfo++) { + if (modinfo->arch) { + if (strcmp(modinfo->name, module_name) == 0) { + if (!module_check_arch(modinfo)) { + return false; + } + } + } if (modinfo->deps) { if (strcmp(modinfo->name, module_name) == 0) { /* we depend on other module(s) */ @@ -345,6 +373,7 @@ void qemu_load_module_for_opts(const char *group) #else +void module_allow_arch(const char *arch) {} void qemu_load_module_for_opts(const char *group) {} void module_load_qom_one(const char *type) {} void module_load_qom_all(void) {} |