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qtest: Add set_irq_in command to set IRQ/GPIO level 

Adds a new qtest command "set_irq_in" which allows
to set qemu gpio lines to a given level.

Based on https://lists.gnu.org/archive/html/qemu-devel/2012-12/msg02363.html
which never got merged.

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-2-stefanha@redhat.com
Originally-by: Matthew Ogilvie <mmogilvi_qemu@miniinfo.net>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Steffen Görtz 2019-01-07 15:23:47 +00:00 committed by Peter Maydell
parent ead07aa4ef
commit 9813dc6ac3
3 changed files with 66 additions and 0 deletions
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43
qtest.c
View File

@ -164,6 +164,17 @@ static bool qtest_opened;
* where NUM is an IRQ number. For the PC, interrupts can be intercepted
* simply with "irq_intercept_in ioapic" (note that IRQ0 comes out with
* NUM=0 even though it is remapped to GSI 2).
*
* Setting interrupt level:
*
* > set_irq_in QOM-PATH NAME NUM LEVEL
* < OK
*
* where NAME is the name of the irq/gpio list, NUM is an IRQ number and
* LEVEL is an signed integer IRQ level.
*
* Forcibly set the given interrupt pin to the given level.
*
*/
static int hex2nib(char ch)
@ -326,7 +337,39 @@ static void qtest_process_command(CharBackend *chr, gchar **words)
irq_intercept_dev = dev;
qtest_send_prefix(chr);
qtest_send(chr, "OK\n");
} else if (strcmp(words[0], "set_irq_in") == 0) {
DeviceState *dev;
qemu_irq irq;
char *name;
int ret;
int num;
int level;
g_assert(words[1] && words[2] && words[3] && words[4]);
dev = DEVICE(object_resolve_path(words[1], NULL));
if (!dev) {
qtest_send_prefix(chr);
qtest_send(chr, "FAIL Unknown device\n");
return;
}
if (strcmp(words[2], "unnamed-gpio-in") == 0) {
name = NULL;
} else {
name = words[2];
}
ret = qemu_strtoi(words[3], NULL, 0, &num);
g_assert(!ret);
ret = qemu_strtoi(words[4], NULL, 0, &level);
g_assert(!ret);
irq = qdev_get_gpio_in_named(dev, name, num);
qemu_set_irq(irq, level);
qtest_send_prefix(chr);
qtest_send(chr, "OK\n");
} else if (strcmp(words[0], "outb") == 0 ||
strcmp(words[0], "outw") == 0 ||
strcmp(words[0], "outl") == 0) {

10
tests/libqtest.c
View File

@ -753,6 +753,16 @@ void qtest_irq_intercept_in(QTestState *s, const char *qom_path)
qtest_rsp(s, 0);
}
void qtest_set_irq_in(QTestState *s, const char *qom_path, const char *name,
int num, int level)
{
if (!name) {
name = "unnamed-gpio-in";
}
qtest_sendf(s, "set_irq_in %s %s %d %d\n", qom_path, name, num, level);
qtest_rsp(s, 0);
}
static void qtest_out(QTestState *s, const char *cmd, uint16_t addr, uint32_t value)
{
qtest_sendf(s, "%s 0x%x 0x%x\n", cmd, addr, value);

13
tests/libqtest.h
View File

@ -230,6 +230,19 @@ void qtest_irq_intercept_in(QTestState *s, const char *string);
*/
void qtest_irq_intercept_out(QTestState *s, const char *string);
/**
* qtest_set_irq_in:
* @s: QTestState instance to operate on.
* @string: QOM path of a device
* @name: IRQ name
* @irq: IRQ number
* @level: IRQ level
*
* Force given device/irq GPIO-in pin to the given level.
*/
void qtest_set_irq_in(QTestState *s, const char *string, const char *name,
int irq, int level);
/**
* qtest_outb:
* @s: #QTestState instance to operate on.