diff options
| -rw-r--r-- | hw/arm/bcm2835_peripherals.c | 2 | ||||
| -rw-r--r-- | hw/arm/bcm2836.c | 2 | ||||
| -rw-r--r-- | hw/arm/raspi.c | 2 | ||||
| -rw-r--r-- | hw/misc/bcm2835_property.c | 13 | ||||
| -rw-r--r-- | include/hw/misc/bcm2835_property.h | 1 |
5 files changed, 19 insertions, 1 deletions
diff --git a/hw/arm/bcm2835_peripherals.c b/hw/arm/bcm2835_peripherals.c index 3c2a416..0233038 100644 --- a/hw/arm/bcm2835_peripherals.c +++ b/hw/arm/bcm2835_peripherals.c @@ -90,6 +90,8 @@ static void bcm2835_peripherals_init(Object *obj) TYPE_BCM2835_PROPERTY); object_property_add_alias(obj, "board-rev", OBJECT(&s->property), "board-rev"); + object_property_add_alias(obj, "command-line", OBJECT(&s->property), + "command-line"); object_property_add_const_link(OBJECT(&s->property), "fb", OBJECT(&s->fb)); diff --git a/hw/arm/bcm2836.c b/hw/arm/bcm2836.c index f894338..166dc89 100644 --- a/hw/arm/bcm2836.c +++ b/hw/arm/bcm2836.c @@ -55,6 +55,8 @@ static void bcm2836_init(Object *obj) TYPE_BCM2835_PERIPHERALS); object_property_add_alias(obj, "board-rev", OBJECT(&s->peripherals), "board-rev"); + object_property_add_alias(obj, "command-line", OBJECT(&s->peripherals), + "command-line"); object_property_add_alias(obj, "vcram-size", OBJECT(&s->peripherals), "vcram-size"); } diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index 92d068d..7b9221c 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -280,6 +280,8 @@ static void raspi_machine_init(MachineState *machine) object_property_add_const_link(OBJECT(&s->soc), "ram", OBJECT(machine->ram)); object_property_set_int(OBJECT(&s->soc), "board-rev", board_rev, &error_abort); + object_property_set_str(OBJECT(&s->soc), "command-line", + machine->kernel_cmdline, &error_abort); qdev_realize(DEVICE(&s->soc), NULL, &error_fatal); /* Create and plug in the SD cards */ diff --git a/hw/misc/bcm2835_property.c b/hw/misc/bcm2835_property.c index de056ea..251b3d8 100644 --- a/hw/misc/bcm2835_property.c +++ b/hw/misc/bcm2835_property.c @@ -282,7 +282,17 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value) break; case 0x00050001: /* Get command line */ - resplen = 0; + /* + * We follow the firmware behaviour: no NUL terminator is + * written to the buffer, and if the buffer is too short + * we report the required length in the response header + * and copy nothing to the buffer. + */ + resplen = strlen(s->command_line); + if (bufsize >= resplen) + address_space_write(&s->dma_as, value + 12, + MEMTXATTRS_UNSPECIFIED, s->command_line, + resplen); break; default: @@ -420,6 +430,7 @@ static void bcm2835_property_realize(DeviceState *dev, Error **errp) static Property bcm2835_property_props[] = { DEFINE_PROP_UINT32("board-rev", BCM2835PropertyState, board_rev, 0), + DEFINE_PROP_STRING("command-line", BCM2835PropertyState, command_line), DEFINE_PROP_END_OF_LIST() }; diff --git a/include/hw/misc/bcm2835_property.h b/include/hw/misc/bcm2835_property.h index 712b76b..ba88966 100644 --- a/include/hw/misc/bcm2835_property.h +++ b/include/hw/misc/bcm2835_property.h @@ -30,6 +30,7 @@ struct BCM2835PropertyState { MACAddr macaddr; uint32_t board_rev; uint32_t addr; + char *command_line; bool pending; }; |