diff options
| -rw-r--r-- | docs/about/deprecated.rst | 5 | ||||
| -rw-r--r-- | os-posix.c | 35 | ||||
| -rw-r--r-- | qemu-options.hx | 18 | ||||
| -rw-r--r-- | util/async-teardown.c | 21 |
4 files changed, 52 insertions, 27 deletions
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index ddc1e48460..02ea5a839f 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -116,6 +116,11 @@ Use "whpx" (on Windows) or "hvf" (on macOS) instead. Use ``-run-with async-teardown=on`` instead. +``-chroot`` (since 8.1) +''''''''''''''''''''''' + +Use ``-run-with chroot=dir`` instead. + ``-singlestep`` (since 8.1) ''''''''''''''''''''''''''' diff --git a/os-posix.c b/os-posix.c index 90ea71725f..cfcb96533c 100644 --- a/os-posix.c +++ b/os-posix.c @@ -38,6 +38,7 @@ #include "qemu/cutils.h" #include "qemu/config-file.h" #include "qemu/option.h" +#include "qemu/module.h" #ifdef CONFIG_LINUX #include <sys/prctl.h> @@ -148,6 +149,7 @@ int os_parse_cmd_args(int index, const char *optarg) } break; case QEMU_OPTION_chroot: + warn_report("option is deprecated, use '-run-with chroot=...' instead"); chroot_dir = optarg; break; case QEMU_OPTION_daemonize: @@ -158,18 +160,25 @@ int os_parse_cmd_args(int index, const char *optarg) case QEMU_OPTION_asyncteardown: init_async_teardown(); break; +#endif case QEMU_OPTION_run_with: { + const char *str; QemuOpts *opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), optarg, false); if (!opts) { exit(1); } +#if defined(CONFIG_LINUX) if (qemu_opt_get_bool(opts, "async-teardown", false)) { init_async_teardown(); } +#endif + str = qemu_opt_get(opts, "chroot"); + if (str) { + chroot_dir = str; + } break; } -#endif default: return -1; } @@ -348,3 +357,27 @@ int os_mlock(void) return -ENOSYS; #endif } + +static QemuOptsList qemu_run_with_opts = { + .name = "run-with", + .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head), + .desc = { +#if defined(CONFIG_LINUX) + { + .name = "async-teardown", + .type = QEMU_OPT_BOOL, + }, +#endif + { + .name = "chroot", + .type = QEMU_OPT_STRING, + }, + { /* end of list */ } + }, +}; + +static void register_runwith(void) +{ + qemu_add_opts(&qemu_run_with_opts); +} +opts_init(register_runwith); diff --git a/qemu-options.hx b/qemu-options.hx index 96087505b2..f8f384e551 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4677,11 +4677,12 @@ ERST #ifndef _WIN32 DEF("chroot", HAS_ARG, QEMU_OPTION_chroot, \ - "-chroot dir chroot to dir just before starting the VM\n", + "-chroot dir chroot to dir just before starting the VM (deprecated)\n", QEMU_ARCH_ALL) #endif SRST ``-chroot dir`` + Deprecated, use '-run-with chroot=...' instead. Immediately before starting guest execution, chroot to the specified directory. Especially useful in combination with -runas. ERST @@ -4868,13 +4869,16 @@ SRST This option is deprecated and should no longer be used. The new option ``-run-with async-teardown=on`` is a replacement. ERST +#endif +#ifdef CONFIG_POSIX DEF("run-with", HAS_ARG, QEMU_OPTION_run_with, - "-run-with async-teardown[=on|off]\n" - " misc QEMU process lifecycle options\n" - " async-teardown=on enables asynchronous teardown\n", + "-run-with [async-teardown=on|off][,chroot=dir]\n" + " Set miscellaneous QEMU process lifecycle options:\n" + " async-teardown=on enables asynchronous teardown (Linux only)\n" + " chroot=dir chroot to dir just before starting the VM\n", QEMU_ARCH_ALL) SRST -``-run-with`` +``-run-with [async-teardown=on|off][,chroot=dir]`` Set QEMU process lifecycle options. ``async-teardown=on`` enables asynchronous teardown. A new process called @@ -4887,6 +4891,10 @@ SRST performed correctly. This only works if the cleanup process is not forcefully killed with SIGKILL before the main QEMU process has terminated completely. + + ``chroot=dir`` can be used for doing a chroot to the specified directory + immediately before starting the guest execution. This is especially useful + in combination with -runas. ERST #endif diff --git a/util/async-teardown.c b/util/async-teardown.c index 3ab19c8740..62cdeb0f20 100644 --- a/util/async-teardown.c +++ b/util/async-teardown.c @@ -12,9 +12,6 @@ */ #include "qemu/osdep.h" -#include "qemu/config-file.h" -#include "qemu/option.h" -#include "qemu/module.h" #include <dirent.h> #include <sys/prctl.h> #include <sched.h> @@ -147,21 +144,3 @@ void init_async_teardown(void) clone(async_teardown_fn, new_stack_for_clone(), CLONE_VM, NULL); sigprocmask(SIG_SETMASK, &old_signals, NULL); } - -static QemuOptsList qemu_run_with_opts = { - .name = "run-with", - .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head), - .desc = { - { - .name = "async-teardown", - .type = QEMU_OPT_BOOL, - }, - { /* end of list */ } - }, -}; - -static void register_teardown(void) -{ - qemu_add_opts(&qemu_run_with_opts); -} -opts_init(register_teardown); |