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 <cont...@steffen-goertz.de> Originally-by: Matthew Ogilvie <mmogilvi_q...@miniinfo.net> --- qtest.c | 37 +++++++++++++++++++++++++++++++++++++ tests/libqtest.c | 10 ++++++++++ tests/libqtest.h | 28 ++++++++++++++++++++++++++++ 3 files changed, 75 insertions(+) diff --git a/qtest.c b/qtest.c index 69b9e9962b..92118628ce 100644 --- a/qtest.c +++ b/qtest.c @@ -164,6 +164,14 @@ 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 IRQ LEVEL + * < OK + * + * Forcibly set the given interrupt pin to the given level. + * */ static int hex2nib(char ch) @@ -326,7 +334,36 @@ 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 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]; + } + + num = qemu_strtol(words[3], NULL, 0); + level = qemu_strtol(words[4], NULL, 0); + + 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) { diff --git a/tests/libqtest.c b/tests/libqtest.c index 098af6aec4..62dd447164 100644 --- a/tests/libqtest.c +++ b/tests/libqtest.c @@ -718,6 +718,16 @@ 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); diff --git a/tests/libqtest.h b/tests/libqtest.h index ac52872cbe..5e4c97e775 100644 --- a/tests/libqtest.h +++ b/tests/libqtest.h @@ -211,6 +211,19 @@ 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. @@ -661,6 +674,21 @@ static inline void irq_intercept_out(const char *string) qtest_irq_intercept_out(global_qtest, string); } +/** + * qtest_set_irq_in: + * @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. + */ +static inline void set_irq_in(const char *string, const char *name, + int irq, int level) +{ + qtest_set_irq_in(global_qtest, string, name, irq, level); +} + /** * outb: * @addr: I/O port to write to. -- 2.18.0
