Commit 9813dc6a authored by Steffen Görtz's avatar Steffen Görtz Committed by Peter Maydell
Browse files

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: default avatarSteffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: default avatarThomas Huth <thuth@redhat.com>
Reviewed-by: default avatarLaurent Vivier <lvivier@redhat.com>
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-2-stefanha@redhat.com
Originally-by: default avatarMatthew Ogilvie <mmogilvi_qemu@miniinfo.net>
Reviewed-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: default avatarThomas Huth <thuth@redhat.com>
Reviewed-by: default avatarLaurent Vivier <lvivier@redhat.com>
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent ead07aa4

qtest.c

+43 −0
Original line number Diff line number Diff line
@@ -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) {

tests/libqtest.c

+10 −0
Original line number Diff line number Diff line
@@ -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);

tests/libqtest.h

+13 −0
Original line number Diff line number Diff line
@@ -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.