diff options
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 2832d82148..797d992804 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -440,6 +440,8 @@ These options have the same definition as they have in @option{-hdachs}. @var{cache} is "none", "writeback", "unsafe", "directsync" or "writethrough" and controls how the host cache is used to access block data. @item aio=@var{aio} @var{aio} is "threads", or "native" and selects between pthread based disk I/O and native Linux AIO. +@item discard=@var{discard} +@var{discard} is one of "ignore" (or "off") or "unmap" (or "on") and controls whether @dfn{discard} (also known as @dfn{trim} or @dfn{unmap}) requests are ignored or passed to the filesystem. Some machine types may not support discard requests. @item format=@var{format} Specify which disk @var{format} will be used rather than detecting the format. Can be used to specifiy format=raw to avoid interpreting @@ -2515,21 +2517,21 @@ Shorthand for -gdb tcp::1234, i.e. open a gdbserver on TCP port 1234 ETEXI DEF("d", HAS_ARG, QEMU_OPTION_d, \ - "-d item1,... output log to /tmp/qemu.log (use '-d help' for a list of log items)\n", + "-d item1,... enable logging of specified items (use '-d help' for a list of log items)\n", QEMU_ARCH_ALL) STEXI -@item -d +@item -d @var{item1}[,...] @findex -d -Output log in /tmp/qemu.log +Enable logging of specified items. Use '-d help' for a list of log items. ETEXI DEF("D", HAS_ARG, QEMU_OPTION_D, \ - "-D logfile output log to logfile (instead of the default /tmp/qemu.log)\n", + "-D logfile output log to logfile (default stderr)\n", QEMU_ARCH_ALL) STEXI @item -D @var{logfile} @findex -D -Output log in @var{logfile} instead of /tmp/qemu.log +Output log in @var{logfile} instead of to stderr ETEXI DEF("L", HAS_ARG, QEMU_OPTION_L, \ |