diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2009-07-14 10:20:11 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-07-16 17:28:51 -0500 |
| commit | f114784f69ec3b9af342148025de14dbd1b429a5 (patch) | |
| tree | 7dbf5414152e5d77ab7debae8f5770791f61a0d3 | |
| parent | ef74679a810fe6858f625b9d52b68cc3fc61eb3d (diff) | |
monitor: Add port write command
Useful for testing hardware emulations or manipulating its state to
stress guest drivers.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | monitor.c | 19 | ||||
| -rw-r--r-- | qemu-monitor.hx | 5 |
2 files changed, 24 insertions, 0 deletions
@@ -1185,6 +1185,25 @@ static void do_ioport_read(Monitor *mon, int count, int format, int size, suffix, addr, size * 2, val); } +static void do_ioport_write(Monitor *mon, int count, int format, int size, + int addr, int val) +{ + addr &= IOPORTS_MASK; + + switch (size) { + default: + case 1: + cpu_outb(NULL, addr, val); + break; + case 2: + cpu_outw(NULL, addr, val); + break; + case 4: + cpu_outl(NULL, addr, val); + break; + } +} + static void do_boot_set(Monitor *mon, const char *bootdevice) { int res; diff --git a/qemu-monitor.hx b/qemu-monitor.hx index 62edbcde75..70e24758cc 100644 --- a/qemu-monitor.hx +++ b/qemu-monitor.hx @@ -306,6 +306,11 @@ STEXI Read I/O port. ETEXI + { "o", "/ii", do_ioport_write, + "/fmt addr value", "I/O port write" }, +STEXI +Write to I/O port. +ETEXI { "sendkey", "si?", do_sendkey, "keys [hold_ms]", "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)" }, |