@@ -1682,3 +1682,8 @@ DEF("semihosting", 0, QEMU_OPTION_semihosting,
DEF("old-param", 0, QEMU_OPTION_old_param,
"-old-param old param mode\n")
#endif
+DEF("readconfig", HAS_ARG, QEMU_OPTION_readconfig,
+ "-readconfig <file>\n")
+DEF("writeconfig", HAS_ARG, QEMU_OPTION_writeconfig,
+ "-writeconfig <file>\n"
+ " read/write config file")
@@ -5513,6 +5513,36 @@ int main(int argc, char **argv, char **envp)
xen_mode = XEN_ATTACH;
break;
#endif
+ case QEMU_OPTION_readconfig:
+ {
+ FILE *fp;
+ fp = fopen(optarg, "r");
+ if (fp == NULL) {
+ fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
+ exit(1);
+ }
+ if (qemu_config_parse(fp) != 0) {
+ exit(1);
+ }
+ fclose(fp);
+ break;
+ }
+ case QEMU_OPTION_writeconfig:
+ {
+ FILE *fp;
+ if (strcmp(optarg, "-") == 0) {
+ fp = stdout;
+ } else {
+ fp = fopen(optarg, "w");
+ if (fp == NULL) {
+ fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
+ exit(1);
+ }
+ }
+ qemu_config_write(fp);
+ fclose(fp);
+ break;
+ }
}
}
}
Adds -readconfig and -writeconfig command line switches to read/write QemuOpts from config file. In theory you should be able to do: qemu < machine config cmd line switches here > -writeconfig vm.cfg qemu -readconfig vm.cfg In practice it will not work. Not all command line switches are converted to QemuOpts, so you'll have to keep the not-yet converted ones on the second line. Also there might be bugs lurking which prevent even the converted ones from working correctly. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> --- qemu-options.hx | 5 +++++ vl.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 35 insertions(+), 0 deletions(-)