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[Qemu-devel] [PATCH] monitor: Add port write command
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PATCH] monitor: Add port write command |
Date: |
Tue, 14 Jul 2009 10:20:11 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
Useful for testing hardware emulations or manipulating its state to
stress guest drivers.
Signed-off-by: Jan Kiszka <address@hidden>
---
monitor.c | 19 +++++++++++++++++++
qemu-monitor.hx | 5 +++++
2 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/monitor.c b/monitor.c
index 342af32..2ddca95 100644
--- a/monitor.c
+++ b/monitor.c
@@ -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;
+ }
+}
+
/* boot_set handler */
static QEMUBootSetHandler *qemu_boot_set_handler = NULL;
static void *boot_opaque;
diff --git a/qemu-monitor.hx b/qemu-monitor.hx
index 62edbcd..70e2475 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)" },
- [Qemu-devel] [PATCH] monitor: Add port write command,
Jan Kiszka <=
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Anthony Liguori, 2009/07/14
- Message not available
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Blue Swirl, 2009/07/14
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Paul Brook, 2009/07/14
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Gleb Natapov, 2009/07/15
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Paul Brook, 2009/07/15
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Jan Kiszka, 2009/07/15
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Gleb Natapov, 2009/07/15