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authorThomas Huth <thuth@redhat.com>2024-05-06 13:20:58 +0200
committerThomas Huth <thuth@redhat.com>2024-05-10 08:34:29 +0200
commit95e0fb0afac678b13a70b476b4ad564569d6df8c (patch)
treed9b1bac73cbe56e71dcdd3c35578fa8b30f79af9 /qemu-options.hx
parent6e55b32d45976a8e78cbd3bbdf6ed1148cb2662a (diff)
qemu-options: Deprecate "-runas" and introduce "-run-with user=..." instead
The old "-runas" option has the disadvantage that it is not visible in the QAPI schema, so it is not available via the normal introspection mechanisms. We've recently introduced the "-run-with" option for exactly this purpose, which is meant to handle the options that affect the runtime behavior. Thus let's introduce a "user=..." parameter here now and deprecate the old "-runas" option. Message-ID: <20240506112058.51446-1-thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r--qemu-options.hx15
1 files changed, 11 insertions, 4 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index cf61f6b863..f5c01eeeb4 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4824,7 +4824,8 @@ DEF("runas", HAS_ARG, QEMU_OPTION_runas, \
SRST
``-runas user``
Immediately before starting guest execution, drop root privileges,
- switching to the specified user.
+ switching to the specified user. This option is deprecated, use
+ ``-run-with user=...`` instead.
ERST
DEF("prom-env", HAS_ARG, QEMU_OPTION_prom_env,
@@ -4990,13 +4991,15 @@ DEF("qtest-log", HAS_ARG, QEMU_OPTION_qtest_log, "", QEMU_ARCH_ALL)
#ifdef CONFIG_POSIX
DEF("run-with", HAS_ARG, QEMU_OPTION_run_with,
- "-run-with [async-teardown=on|off][,chroot=dir]\n"
+ "-run-with [async-teardown=on|off][,chroot=dir][user=username|uid:gid]\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",
+ " chroot=dir chroot to dir just before starting the VM\n"
+ " user=username switch to the specified user before starting the VM\n"
+ " user=uid:gid ditto, but use specified user-ID and group-ID instead\n",
QEMU_ARCH_ALL)
SRST
-``-run-with [async-teardown=on|off][,chroot=dir]``
+``-run-with [async-teardown=on|off][,chroot=dir][user=username|uid:gid]``
Set QEMU process lifecycle options.
``async-teardown=on`` enables asynchronous teardown. A new process called
@@ -5013,6 +5016,10 @@ SRST
``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.
+
+ ``user=username`` or ``user=uid:gid`` can be used to drop root privileges
+ by switching to the specified user (via username) or user and group
+ (via uid:gid) immediately before starting guest execution.
ERST
#endif