diff options
Diffstat (limited to 'hw/misc')
| -rw-r--r-- | hw/misc/aspeed_sbc.c | 141 | ||||
| -rw-r--r-- | hw/misc/aspeed_sdmc.c | 2 | ||||
| -rw-r--r-- | hw/misc/meson.build | 1 | ||||
| -rw-r--r-- | hw/misc/trace-events | 4 |
4 files changed, 148 insertions, 0 deletions
diff --git a/hw/misc/aspeed_sbc.c b/hw/misc/aspeed_sbc.c new file mode 100644 index 0000000000..40f2a8c631 --- /dev/null +++ b/hw/misc/aspeed_sbc.c @@ -0,0 +1,141 @@ +/* + * ASPEED Secure Boot Controller + * + * Copyright (C) 2021-2022 IBM Corp. + * + * Joel Stanley <joel@jms.id.au> + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "qemu/error-report.h" +#include "hw/misc/aspeed_sbc.h" +#include "qapi/error.h" +#include "migration/vmstate.h" + +#define R_PROT (0x000 / 4) +#define R_STATUS (0x014 / 4) + +static uint64_t aspeed_sbc_read(void *opaque, hwaddr addr, unsigned int size) +{ + AspeedSBCState *s = ASPEED_SBC(opaque); + + addr >>= 2; + + if (addr >= ASPEED_SBC_NR_REGS) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out-of-bounds read at offset 0x%" HWADDR_PRIx "\n", + __func__, addr << 2); + return 0; + } + + return s->regs[addr]; +} + +static void aspeed_sbc_write(void *opaque, hwaddr addr, uint64_t data, + unsigned int size) +{ + AspeedSBCState *s = ASPEED_SBC(opaque); + + addr >>= 2; + + if (addr >= ASPEED_SBC_NR_REGS) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out-of-bounds write at offset 0x%" HWADDR_PRIx "\n", + __func__, addr << 2); + return; + } + + switch (addr) { + case R_STATUS: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: write to read only register 0x%" HWADDR_PRIx "\n", + __func__, addr << 2); + return; + default: + break; + } + + s->regs[addr] = data; +} + +static const MemoryRegionOps aspeed_sbc_ops = { + .read = aspeed_sbc_read, + .write = aspeed_sbc_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 4, + }, +}; + +static void aspeed_sbc_reset(DeviceState *dev) +{ + struct AspeedSBCState *s = ASPEED_SBC(dev); + + memset(s->regs, 0, sizeof(s->regs)); + + /* Set secure boot enabled, and boot from emmc/spi */ + s->regs[R_STATUS] = 1 << 6 | 1 << 5; +} + +static void aspeed_sbc_realize(DeviceState *dev, Error **errp) +{ + AspeedSBCState *s = ASPEED_SBC(dev); + SysBusDevice *sbd = SYS_BUS_DEVICE(dev); + + memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_sbc_ops, s, + TYPE_ASPEED_SBC, 0x1000); + + sysbus_init_mmio(sbd, &s->iomem); +} + +static const VMStateDescription vmstate_aspeed_sbc = { + .name = TYPE_ASPEED_SBC, + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(regs, AspeedSBCState, ASPEED_SBC_NR_REGS), + VMSTATE_END_OF_LIST(), + } +}; + +static void aspeed_sbc_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->realize = aspeed_sbc_realize; + dc->reset = aspeed_sbc_reset; + dc->vmsd = &vmstate_aspeed_sbc; +} + +static const TypeInfo aspeed_sbc_info = { + .name = TYPE_ASPEED_SBC, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(AspeedSBCState), + .class_init = aspeed_sbc_class_init, + .class_size = sizeof(AspeedSBCClass) +}; + +static void aspeed_ast2600_sbc_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->desc = "AST2600 Secure Boot Controller"; +} + +static const TypeInfo aspeed_ast2600_sbc_info = { + .name = TYPE_ASPEED_AST2600_SBC, + .parent = TYPE_ASPEED_SBC, + .class_init = aspeed_ast2600_sbc_class_init, +}; + +static void aspeed_sbc_register_types(void) +{ + type_register_static(&aspeed_ast2600_sbc_info); + type_register_static(&aspeed_sbc_info); +} + +type_init(aspeed_sbc_register_types); diff --git a/hw/misc/aspeed_sdmc.c b/hw/misc/aspeed_sdmc.c index 08f856cbda..d2a3931033 100644 --- a/hw/misc/aspeed_sdmc.c +++ b/hw/misc/aspeed_sdmc.c @@ -130,6 +130,7 @@ static uint64_t aspeed_sdmc_read(void *opaque, hwaddr addr, unsigned size) return 0; } + trace_aspeed_sdmc_read(addr, s->regs[addr]); return s->regs[addr]; } @@ -148,6 +149,7 @@ static void aspeed_sdmc_write(void *opaque, hwaddr addr, uint64_t data, return; } + trace_aspeed_sdmc_write(addr, data); asc->write(s, addr, data); } diff --git a/hw/misc/meson.build b/hw/misc/meson.build index 6dcbe044f3..645585371a 100644 --- a/hw/misc/meson.build +++ b/hw/misc/meson.build @@ -111,6 +111,7 @@ softmmu_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files( 'aspeed_i3c.c', 'aspeed_lpc.c', 'aspeed_scu.c', + 'aspeed_sbc.c', 'aspeed_sdmc.c', 'aspeed_xdma.c')) diff --git a/hw/misc/trace-events b/hw/misc/trace-events index 1c373dd0a4..fb5a389780 100644 --- a/hw/misc/trace-events +++ b/hw/misc/trace-events @@ -205,6 +205,10 @@ aspeed_i3c_write(uint64_t offset, uint64_t data) "I3C write: offset 0x%" PRIx64 aspeed_i3c_device_read(uint32_t deviceid, uint64_t offset, uint64_t data) "I3C Dev[%u] read: offset 0x%" PRIx64 " data 0x%" PRIx64 aspeed_i3c_device_write(uint32_t deviceid, uint64_t offset, uint64_t data) "I3C Dev[%u] write: offset 0x%" PRIx64 " data 0x%" PRIx64 +# aspeed_sdmc.c +aspeed_sdmc_write(uint64_t reg, uint64_t data) "reg @0x%" PRIx64 " data: 0x%" PRIx64 +aspeed_sdmc_read(uint64_t reg, uint64_t data) "reg @0x%" PRIx64 " data: 0x%" PRIx64 + # bcm2835_property.c bcm2835_mbox_property(uint32_t tag, uint32_t bufsize, size_t resplen) "mbox property tag:0x%08x in_sz:%u out_sz:%zu" |