diff options
| -rw-r--r-- | hw/irq.c | 17 | ||||
| -rw-r--r-- | hw/irq.h | 5 | ||||
| -rw-r--r-- | hw/pc_piix.c | 3 | ||||
| -rw-r--r-- | qtest.c | 92 |
4 files changed, 93 insertions, 24 deletions
@@ -104,3 +104,20 @@ qemu_irq *qemu_irq_proxy(qemu_irq **target, int n) { return qemu_allocate_irqs(proxy_irq_handler, target, n); } + +void qemu_irq_intercept_in(qemu_irq *gpio_in, qemu_irq_handler handler, int n) +{ + int i; + qemu_irq *old_irqs = qemu_allocate_irqs(NULL, NULL, n); + for (i = 0; i < n; i++) { + *old_irqs[i] = *gpio_in[i]; + gpio_in[i]->handler = handler; + gpio_in[i]->opaque = old_irqs; + } +} + +void qemu_irq_intercept_out(qemu_irq **gpio_out, qemu_irq_handler handler, int n) +{ + qemu_irq *old_irqs = *gpio_out; + *gpio_out = qemu_allocate_irqs(handler, old_irqs, n); +} @@ -38,4 +38,9 @@ qemu_irq qemu_irq_split(qemu_irq irq1, qemu_irq irq2); */ qemu_irq *qemu_irq_proxy(qemu_irq **target, int n); +/* For internal use in qtest. Similar to qemu_irq_split, but operating + on an existing vector of qemu_irq. */ +void qemu_irq_intercept_in(qemu_irq *gpio_in, qemu_irq_handler handler, int n); +void qemu_irq_intercept_out(qemu_irq **gpio_out, qemu_irq_handler handler, int n); + #endif diff --git a/hw/pc_piix.c b/hw/pc_piix.c index 3f99f9a..ec5118f 100644 --- a/hw/pc_piix.c +++ b/hw/pc_piix.c @@ -107,6 +107,9 @@ static void ioapic_init(GSIState *gsi_state) } else { dev = qdev_create(NULL, "ioapic"); } + /* FIXME: this should be under the piix3. */ + object_property_add_child(object_resolve_path("i440fx", NULL), + "ioapic", OBJECT(dev), NULL); qdev_init_nofail(dev); d = sysbus_from_qdev(dev); sysbus_mmio_map(d, 0, 0xfec00000); @@ -12,6 +12,7 @@ */ #include "qtest.h" +#include "hw/qdev.h" #include "qemu-char.h" #include "ioport.h" #include "memory.h" @@ -24,6 +25,7 @@ const char *qtest_chrdev; const char *qtest_log; int qtest_allowed = 0; +static DeviceState *irq_intercept_dev; static FILE *qtest_log_fp; static CharDriverState *qtest_chr; static GString *inbuf; @@ -66,18 +68,30 @@ static bool qtest_opened; * > write ADDR SIZE DATA * < OK * - * Valid async messages: - * - * IRQ raise NUM - * IRQ lower NUM - * * ADDR, SIZE, VALUE are all integers parsed with strtoul() with a base of 0. * * DATA is an arbitrarily long hex number prefixed with '0x'. If it's smaller * than the expected size, the value will be zero filled at the end of the data * sequence. * - * NUM is an IRQ number. + * IRQ management: + * + * > irq_intercept_in QOM-PATH + * < OK + * + * > irq_intercept_out QOM-PATH + * < OK + * + * Attach to the gpio-in (resp. gpio-out) pins exported by the device at + * QOM-PATH. When the pin is triggered, one of the following async messages + * will be printed to the qtest stream: + * + * IRQ raise NUM + * IRQ lower NUM + * + * 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). */ static int hex2nib(char ch) @@ -133,6 +147,20 @@ static void qtest_send(CharDriverState *chr, const char *fmt, ...) } } +static void qtest_irq_handler(void *opaque, int n, int level) +{ + qemu_irq *old_irqs = opaque; + qemu_set_irq(old_irqs[n], level); + + if (irq_levels[n] != level) { + CharDriverState *chr = qtest_chr; + irq_levels[n] = level; + qtest_send_prefix(chr); + qtest_send(chr, "IRQ %s %d\n", + level ? "raise" : "lower", n); + } +} + static void qtest_process_command(CharDriverState *chr, gchar **words) { const gchar *command; @@ -155,9 +183,40 @@ static void qtest_process_command(CharDriverState *chr, gchar **words) } g_assert(command); - if (strcmp(words[0], "outb") == 0 || - strcmp(words[0], "outw") == 0 || - strcmp(words[0], "outl") == 0) { + if (strcmp(words[0], "irq_intercept_out") == 0 + || strcmp(words[0], "irq_intercept_in") == 0) { + DeviceState *dev; + + g_assert(words[1]); + dev = DEVICE(object_resolve_path(words[1], NULL)); + if (!dev) { + qtest_send_prefix(chr); + qtest_send(chr, "FAIL Unknown device\n"); + return; + } + + if (irq_intercept_dev) { + qtest_send_prefix(chr); + if (irq_intercept_dev != dev) { + qtest_send(chr, "FAIL IRQ intercept already enabled\n"); + } else { + qtest_send(chr, "OK\n"); + } + return; + } + + if (words[0][14] == 'o') { + qemu_irq_intercept_out(&dev->gpio_out, qtest_irq_handler, dev->num_gpio_out); + } else { + qemu_irq_intercept_in(dev->gpio_in, qtest_irq_handler, dev->num_gpio_in); + } + irq_intercept_dev = dev; + 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) { uint16_t addr; uint32_t value; @@ -312,21 +371,6 @@ static void qtest_event(void *opaque, int event) } } -static void qtest_set_irq(void *opaque, int irq, int level) -{ - CharDriverState *chr = qtest_chr; - bool changed; - - changed = (irq_levels[irq] != level); - irq_levels[irq] = level; - - if (changed) { - qtest_send_prefix(chr); - qtest_send(chr, "IRQ %s %d\n", - level ? "raise" : "lower", irq); - } -} - int qtest_init(void) { CharDriverState *chr; |