From 7b861d20e22278fc5915f03d77b83e07ba44d440 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 18 May 2021 09:15:42 -0400 Subject: [PATCH 2/5] qemu-config: load modules when instantiating option groups Right now the SPICE module is special cased to be loaded when processing of the -spice command line option. However, the spice option group can also be brought in via -readconfig, in which case the module is not loaded. Add a generic hook to load modules that provide a QemuOpts group, and use it for the "spice" and "iscsi" groups. Fixes: #194 Fixes: https://bugs.launchpad.net/qemu/+bug/1910696 Signed-off-by: Paolo Bonzini Reviewed-by: Gerd Hoffmann Message-Id: <20210518131542.2941207-1-pbonzini@redhat.com> Signed-off-by: Paolo Bonzini --- include/qemu/config-file.h | 2 +- softmmu/vl.c | 21 +++++++++++++++++---- stubs/meson.build | 1 + stubs/module-opts.c | 6 ++++++ util/qemu-config.c | 1 + 5 files changed, 26 insertions(+), 5 deletions(-) create mode 100644 stubs/module-opts.c diff --git a/include/qemu/config-file.h b/include/qemu/config-file.h index 8d3e53a..0500b36 100644 --- a/include/qemu/config-file.h +++ b/include/qemu/config-file.h @@ -1,7 +1,7 @@ #ifndef QEMU_CONFIG_FILE_H #define QEMU_CONFIG_FILE_H - +void qemu_load_module_for_opts(const char *group); QemuOptsList *qemu_find_opts(const char *group); QemuOptsList *qemu_find_opts_err(const char *group, Error **errp); QemuOpts *qemu_find_opts_singleton(const char *group); diff --git a/softmmu/vl.c b/softmmu/vl.c index 29d6415..4641f08 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -2613,6 +2613,23 @@ void qmp_x_exit_preconfig(Error **errp) } } +#ifdef CONFIG_MODULES +void qemu_load_module_for_opts(const char *group) +{ + static bool spice_tried = false; + if (g_str_equal(group, "spice") && !spice_tried) { + ui_module_load_one("spice-core"); + spice_tried = true; + } + + static bool iscsi_tried = false; + if (g_str_equal(group, "iscsi") && !iscsi_tried) { + block_module_load_one("iscsi"); + iscsi_tried = true; + } +} +#endif + void qemu_init(int argc, char **argv, char **envp) { QemuOpts *opts; @@ -3372,10 +3389,6 @@ void qemu_init(int argc, char **argv, char **envp) break; case QEMU_OPTION_spice: olist = qemu_find_opts_err("spice", NULL); - if (!olist) { - ui_module_load_one("spice-core"); - olist = qemu_find_opts("spice"); - } if (!olist) { error_report("spice support is disabled"); exit(1); diff --git a/stubs/meson.build b/stubs/meson.build index be6f6d6..5555b69 100644 --- a/stubs/meson.build +++ b/stubs/meson.build @@ -22,6 +22,7 @@ stub_ss.add(files('isa-bus.c')) stub_ss.add(files('is-daemonized.c')) stub_ss.add(when: 'CONFIG_LINUX_AIO', if_true: files('linux-aio.c')) stub_ss.add(files('migr-blocker.c')) +stub_ss.add(files('module-opts.c')) stub_ss.add(files('monitor.c')) stub_ss.add(files('monitor-core.c')) stub_ss.add(files('pci-bus.c')) diff --git a/stubs/module-opts.c b/stubs/module-opts.c new file mode 100644 index 0000000..a7d0e4a --- /dev/null +++ b/stubs/module-opts.c @@ -0,0 +1,6 @@ +#include "qemu/osdep.h" +#include "qemu/config-file.h" + +void qemu_load_module_for_opts(const char *group) +{ +} diff --git a/util/qemu-config.c b/util/qemu-config.c index 670bd6e..34974c4 100644 --- a/util/qemu-config.c +++ b/util/qemu-config.c @@ -16,6 +16,7 @@ static QemuOptsList *find_list(QemuOptsList **lists, const char *group, { int i; + qemu_load_module_for_opts(group); for (i = 0; lists[i] != NULL; i++) { if (strcmp(lists[i]->name, group) == 0) break; -- 2.31.1