Add secure pl061 for reset/power down machine from the secure world (Arm Trusted Firmware). Connect it with gpio-pwr driver.
Signed-off-by: Maxim Uvarov maxim.uvarov@linaro.org --- hw/arm/Kconfig | 1 + hw/arm/virt.c | 34 ++++++++++++++++++++++++++++++++++ include/hw/arm/virt.h | 2 ++ 3 files changed, 37 insertions(+)
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index 0a242e4c5d..13cc42dcc8 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -17,6 +17,7 @@ config ARM_VIRT select PL011 # UART select PL031 # RTC select PL061 # GPIO + select GPIO_PWR select PLATFORM_BUS select SMBIOS select VIRTIO_MMIO diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 96985917d3..d38a7d5d2f 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -147,6 +147,7 @@ static const MemMapEntry base_memmap[] = { [VIRT_RTC] = { 0x09010000, 0x00001000 }, [VIRT_FW_CFG] = { 0x09020000, 0x00000018 }, [VIRT_GPIO] = { 0x09030000, 0x00001000 }, + [VIRT_SECURE_GPIO] = { 0x09031000, 0x00001000 }, [VIRT_SECURE_UART] = { 0x09040000, 0x00001000 }, [VIRT_SMMU] = { 0x09050000, 0x00020000 }, [VIRT_PCDIMM_ACPI] = { 0x09070000, MEMORY_HOTPLUG_IO_LEN }, @@ -864,6 +865,32 @@ static void create_gpio(const VirtMachineState *vms) g_free(nodename); }
+#define ATF_GPIO_POWEROFF 3 +#define ATF_GPIO_REBOOT 4 + +static void create_gpio_secure(const VirtMachineState *vms, MemoryRegion *mem) +{ + DeviceState *gpio_pwr_dev; + SysBusDevice *s; + hwaddr base = vms->memmap[VIRT_SECURE_GPIO].base; + DeviceState *pl061_dev; + + /* Secure pl061 */ + pl061_dev = qdev_new("pl061"); + s = SYS_BUS_DEVICE(pl061_dev); + sysbus_realize_and_unref(s, &error_fatal); + memory_region_add_subregion(mem, base, sysbus_mmio_get_region(s, 0)); + + /* gpio-pwr */ + gpio_pwr_dev = sysbus_create_simple("gpio-pwr", -1, NULL); + + /* connect secure pl061 to gpio-pwr */ + qdev_connect_gpio_out(pl061_dev, ATF_GPIO_POWEROFF, + qdev_get_gpio_in_named(gpio_pwr_dev, "reset", 0)); + qdev_connect_gpio_out(pl061_dev, ATF_GPIO_REBOOT, + qdev_get_gpio_in_named(gpio_pwr_dev, "shutdown", 0)); +} + static void create_virtio_devices(const VirtMachineState *vms) { int i; @@ -1993,6 +2020,10 @@ static void machvirt_init(MachineState *machine) create_gpio(vms); }
+ if (vms->secure && !vmc->no_secure_gpio) { + create_gpio_secure(vms, secure_sysmem); + } + /* connect powerdown request */ vms->powerdown_notifier.notify = virt_powerdown_req; qemu_register_powerdown_notifier(&vms->powerdown_notifier); @@ -2608,8 +2639,11 @@ DEFINE_VIRT_MACHINE_AS_LATEST(6, 0)
static void virt_machine_5_2_options(MachineClass *mc) { + VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); + virt_machine_6_0_options(mc); compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); + vmc->no_secure_gpio = true; } DEFINE_VIRT_MACHINE(5, 2)
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index abf54fab49..6f6c85ffcf 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -81,6 +81,7 @@ enum { VIRT_GPIO, VIRT_SECURE_UART, VIRT_SECURE_MEM, + VIRT_SECURE_GPIO, VIRT_PCDIMM_ACPI, VIRT_ACPI_GED, VIRT_NVDIMM_ACPI, @@ -127,6 +128,7 @@ struct VirtMachineClass { bool kvm_no_adjvtime; bool no_kvm_steal_time; bool acpi_expose_flash; + bool no_secure_gpio; };
struct VirtMachineState {