diff options
Diffstat (limited to 'lib/efi_loader')
| -rw-r--r-- | lib/efi_loader/Kconfig | 9 | ||||
| -rw-r--r-- | lib/efi_loader/Makefile | 1 | ||||
| -rw-r--r-- | lib/efi_loader/efi_disk.c | 65 | ||||
| -rw-r--r-- | lib/efi_loader/efi_gop.c | 3 | ||||
| -rw-r--r-- | lib/efi_loader/efi_memory.c | 16 | ||||
| -rw-r--r-- | lib/efi_loader/efi_net.c | 291 | ||||
| -rw-r--r-- | lib/efi_loader/efi_runtime.c | 16 |
7 files changed, 391 insertions, 10 deletions
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig index 14c99ec9cf..37a0dd60a5 100644 --- a/lib/efi_loader/Kconfig +++ b/lib/efi_loader/Kconfig @@ -7,3 +7,12 @@ config EFI_LOADER on top of U-Boot. If this option is enabled, U-Boot will expose EFI interfaces to a loaded EFI application, enabling it to reuse U-Boot's device drivers. + +config EFI_LOADER_BOUNCE_BUFFER + bool "EFI Applications use bounce buffers for DMA operations" + depends on EFI_LOADER && ARM64 + default n + help + Some hardware does not support DMA to full 64bit addresses. For this + hardware we can create a bounce buffer so that payloads don't have to + worry about platform details. diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile index 83e31f6d1f..2a3849e31b 100644 --- a/lib/efi_loader/Makefile +++ b/lib/efi_loader/Makefile @@ -11,3 +11,4 @@ obj-y += efi_image_loader.o efi_boottime.o efi_runtime.o efi_console.o obj-y += efi_memory.o obj-$(CONFIG_LCD) += efi_gop.o obj-$(CONFIG_PARTITIONS) += efi_disk.o +obj-$(CONFIG_NET) += efi_net.o diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c index 3095bcfa2b..f9ad6156b7 100644 --- a/lib/efi_loader/efi_disk.c +++ b/lib/efi_loader/efi_disk.c @@ -77,9 +77,6 @@ static efi_status_t EFIAPI efi_disk_rw_blocks(struct efi_block_io *this, int blocks; unsigned long n; - EFI_ENTRY("%p, %x, %"PRIx64", %lx, %p", this, media_id, lba, - buffer_size, buffer); - diskobj = container_of(this, struct efi_disk_obj, ops); if (!(desc = blk_get_dev(diskobj->ifname, diskobj->dev_index))) return EFI_EXIT(EFI_DEVICE_ERROR); @@ -117,16 +114,70 @@ static efi_status_t efi_disk_read_blocks(struct efi_block_io *this, u32 media_id, u64 lba, unsigned long buffer_size, void *buffer) { - return efi_disk_rw_blocks(this, media_id, lba, buffer_size, buffer, - EFI_DISK_READ); + void *real_buffer = buffer; + efi_status_t r; + +#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER + if (buffer_size > EFI_LOADER_BOUNCE_BUFFER_SIZE) { + r = efi_disk_read_blocks(this, media_id, lba, + EFI_LOADER_BOUNCE_BUFFER_SIZE, buffer); + if (r != EFI_SUCCESS) + return r; + return efi_disk_read_blocks(this, media_id, lba + + EFI_LOADER_BOUNCE_BUFFER_SIZE / this->media->block_size, + buffer_size - EFI_LOADER_BOUNCE_BUFFER_SIZE, + buffer + EFI_LOADER_BOUNCE_BUFFER_SIZE); + } + + real_buffer = efi_bounce_buffer; +#endif + + EFI_ENTRY("%p, %x, %"PRIx64", %lx, %p", this, media_id, lba, + buffer_size, buffer); + + r = efi_disk_rw_blocks(this, media_id, lba, buffer_size, real_buffer, + EFI_DISK_READ); + + /* Copy from bounce buffer to real buffer if necessary */ + if ((r == EFI_SUCCESS) && (real_buffer != buffer)) + memcpy(buffer, real_buffer, buffer_size); + + return EFI_EXIT(r); } static efi_status_t efi_disk_write_blocks(struct efi_block_io *this, u32 media_id, u64 lba, unsigned long buffer_size, void *buffer) { - return efi_disk_rw_blocks(this, media_id, lba, buffer_size, buffer, - EFI_DISK_WRITE); + void *real_buffer = buffer; + efi_status_t r; + +#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER + if (buffer_size > EFI_LOADER_BOUNCE_BUFFER_SIZE) { + r = efi_disk_write_blocks(this, media_id, lba, + EFI_LOADER_BOUNCE_BUFFER_SIZE, buffer); + if (r != EFI_SUCCESS) + return r; + return efi_disk_write_blocks(this, media_id, lba + + EFI_LOADER_BOUNCE_BUFFER_SIZE / this->media->block_size, + buffer_size - EFI_LOADER_BOUNCE_BUFFER_SIZE, + buffer + EFI_LOADER_BOUNCE_BUFFER_SIZE); + } + + real_buffer = efi_bounce_buffer; +#endif + + EFI_ENTRY("%p, %x, %"PRIx64", %lx, %p", this, media_id, lba, + buffer_size, buffer); + + /* Populate bounce buffer if necessary */ + if (real_buffer != buffer) + memcpy(real_buffer, buffer, buffer_size); + + r = efi_disk_rw_blocks(this, media_id, lba, buffer_size, real_buffer, + EFI_DISK_WRITE); + + return EFI_EXIT(r); } static efi_status_t EFIAPI efi_disk_flush_blocks(struct efi_block_io *this) diff --git a/lib/efi_loader/efi_gop.c b/lib/efi_loader/efi_gop.c index bdd62bc557..dc6e2615cc 100644 --- a/lib/efi_loader/efi_gop.c +++ b/lib/efi_loader/efi_gop.c @@ -111,7 +111,6 @@ static efi_status_t EFIAPI gop_blt(struct efi_gop *this, void *buffer, int efi_gop_register(void) { struct efi_gop_obj *gopobj; - int line_len; switch (panel_info.vl_bpix) { case LCD_COLOR32: @@ -136,8 +135,6 @@ int efi_gop_register(void) gopobj->mode.max_mode = 1; gopobj->mode.info = &gopobj->info; gopobj->mode.info_size = sizeof(gopobj->info); - gopobj->mode.fb_base = gd->fb_base; - gopobj->mode.fb_size = lcd_get_size(&line_len); gopobj->info.version = 0; gopobj->info.width = panel_info.vl_col; diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index 71a3d19269..9e669f5102 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -27,6 +27,10 @@ struct efi_mem_list { /* This list contains all memory map items */ LIST_HEAD(efi_mem); +#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER +void *efi_bounce_buffer; +#endif + /* * Sorts the memory list from highest address to lowest address * @@ -349,5 +353,17 @@ int efi_memory_init(void) efi_add_memory_map(runtime_start, runtime_pages, EFI_RUNTIME_SERVICES_CODE, false); +#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER + /* Request a 32bit 64MB bounce buffer region */ + uint64_t efi_bounce_buffer_addr = 0xffffffff; + + if (efi_allocate_pages(1, EFI_LOADER_DATA, + (64 * 1024 * 1024) >> EFI_PAGE_SHIFT, + &efi_bounce_buffer_addr) != EFI_SUCCESS) + return -1; + + efi_bounce_buffer = (void*)(uintptr_t)efi_bounce_buffer_addr; +#endif + return 0; } diff --git a/lib/efi_loader/efi_net.c b/lib/efi_loader/efi_net.c new file mode 100644 index 0000000000..dd3b48570d --- /dev/null +++ b/lib/efi_loader/efi_net.c @@ -0,0 +1,291 @@ +/* + * EFI application network access support + * + * Copyright (c) 2016 Alexander Graf + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <efi_loader.h> +#include <inttypes.h> +#include <lcd.h> +#include <malloc.h> + +DECLARE_GLOBAL_DATA_PTR; + +static const efi_guid_t efi_net_guid = EFI_SIMPLE_NETWORK_GUID; +static const efi_guid_t efi_pxe_guid = EFI_PXE_GUID; +static struct efi_pxe_packet *dhcp_ack; +static bool new_rx_packet; +static void *new_tx_packet; + +struct efi_net_obj { + /* Generic EFI object parent class data */ + struct efi_object parent; + /* EFI Interface callback struct for network */ + struct efi_simple_network net; + struct efi_simple_network_mode net_mode; + /* Device path to the network adapter */ + struct efi_device_path_file_path dp[2]; + /* PXE struct to transmit dhcp data */ + struct efi_pxe pxe; + struct efi_pxe_mode pxe_mode; +}; + +static efi_status_t EFIAPI efi_net_start(struct efi_simple_network *this) +{ + EFI_ENTRY("%p", this); + + return EFI_EXIT(EFI_SUCCESS); +} + +static efi_status_t EFIAPI efi_net_stop(struct efi_simple_network *this) +{ + EFI_ENTRY("%p", this); + + return EFI_EXIT(EFI_SUCCESS); +} + +static efi_status_t EFIAPI efi_net_initialize(struct efi_simple_network *this, + ulong extra_rx, ulong extra_tx) +{ + EFI_ENTRY("%p, %lx, %lx", this, extra_rx, extra_tx); + + eth_init(); + + return EFI_EXIT(EFI_SUCCESS); +} + +static efi_status_t EFIAPI efi_net_reset(struct efi_simple_network *this, + int extended_verification) +{ + EFI_ENTRY("%p, %x", this, extended_verification); + + return EFI_EXIT(EFI_SUCCESS); +} + +static efi_status_t EFIAPI efi_net_shutdown(struct efi_simple_network *this) +{ + EFI_ENTRY("%p", this); + + return EFI_EXIT(EFI_SUCCESS); +} + +static efi_status_t EFIAPI efi_net_receive_filters( + struct efi_simple_network *this, u32 enable, u32 disable, + int reset_mcast_filter, ulong mcast_filter_count, + struct efi_mac_address *mcast_filter) +{ + EFI_ENTRY("%p, %x, %x, %x, %lx, %p", this, enable, disable, + reset_mcast_filter, mcast_filter_count, mcast_filter); + + /* XXX Do we care? */ + + return EFI_EXIT(EFI_SUCCESS); +} + +static efi_status_t EFIAPI efi_net_station_address( + struct efi_simple_network *this, int reset, + struct efi_mac_address *new_mac) +{ + EFI_ENTRY("%p, %x, %p", this, reset, new_mac); + + return EFI_EXIT(EFI_INVALID_PARAMETER); +} + +static efi_status_t EFIAPI efi_net_statistics(struct efi_simple_network *this, + int reset, ulong *stat_size, + void *stat_table) +{ + EFI_ENTRY("%p, %x, %p, %p", this, reset, stat_size, stat_table); + + return EFI_EXIT(EFI_INVALID_PARAMETER); +} + +static efi_status_t EFIAPI efi_net_mcastiptomac(struct efi_simple_network *this, + int ipv6, + struct efi_ip_address *ip, + struct efi_mac_address *mac) +{ + EFI_ENTRY("%p, %x, %p, %p", this, ipv6, ip, mac); + + return EFI_EXIT(EFI_INVALID_PARAMETER); +} + +static efi_status_t EFIAPI efi_net_nvdata(struct efi_simple_network *this, + int read_write, ulong offset, + ulong buffer_size, char *buffer) +{ + EFI_ENTRY("%p, %x, %lx, %lx, %p", this, read_write, offset, buffer_size, + buffer); + + return EFI_EXIT(EFI_INVALID_PARAMETER); +} + +static efi_status_t EFIAPI efi_net_get_status(struct efi_simple_network *this, + u32 *int_status, void **txbuf) +{ + EFI_ENTRY("%p, %p, %p", this, int_status, txbuf); + + /* We send packets synchronously, so nothing is outstanding */ + if (int_status) + *int_status = 0; + if (txbuf) + *txbuf = new_tx_packet; + + new_tx_packet = NULL; + + return EFI_EXIT(EFI_SUCCESS); +} + +static efi_status_t EFIAPI efi_net_transmit(struct efi_simple_network *this, + ulong header_size, ulong buffer_size, void *buffer, + struct efi_mac_address *src_addr, + struct efi_mac_address *dest_addr, u16 *protocol) +{ + EFI_ENTRY("%p, %lx, %lx, %p, %p, %p, %p", this, header_size, + buffer_size, buffer, src_addr, dest_addr, protocol); + + if (header_size) { + /* We would need to create the header if header_size != 0 */ + return EFI_EXIT(EFI_INVALID_PARAMETER); + } + + net_send_packet(buffer, buffer_size); + new_tx_packet = buffer; + + return EFI_EXIT(EFI_SUCCESS); +} + +static void efi_net_push(void *pkt, int len) +{ + new_rx_packet = true; +} + +static efi_status_t EFIAPI efi_net_receive(struct efi_simple_network *this, + ulong *header_size, ulong *buffer_size, void *buffer, + struct efi_mac_address *src_addr, + struct efi_mac_address *dest_addr, u16 *protocol) +{ + EFI_ENTRY("%p, %p, %p, %p, %p, %p, %p", this, header_size, + buffer_size, buffer, src_addr, dest_addr, protocol); + + push_packet = efi_net_push; + eth_rx(); + push_packet = NULL; + + if (!new_rx_packet) + return EFI_EXIT(EFI_NOT_READY); + + if (*buffer_size < net_rx_packet_len) { + /* Packet doesn't fit, try again with bigger buf */ + *buffer_size = net_rx_packet_len; + return EFI_EXIT(EFI_BUFFER_TOO_SMALL); + } + + memcpy(buffer, net_rx_packet, net_rx_packet_len); + *buffer_size = net_rx_packet_len; + new_rx_packet = false; + + return EFI_EXIT(EFI_SUCCESS); +} + +static efi_status_t efi_net_open_dp(void *handle, efi_guid_t *protocol, + void **protocol_interface, void *agent_handle, + void *controller_handle, uint32_t attributes) +{ + struct efi_simple_network *net = handle; + struct efi_net_obj *netobj = container_of(net, struct efi_net_obj, net); + + *protocol_interface = netobj->dp; + + return EFI_SUCCESS; +} + +static efi_status_t efi_net_open_pxe(void *handle, efi_guid_t *protocol, + void **protocol_interface, void *agent_handle, + void *controller_handle, uint32_t attributes) +{ + struct efi_simple_network *net = handle; + struct efi_net_obj *netobj = container_of(net, struct efi_net_obj, net); + + *protocol_interface = &netobj->pxe; + + return EFI_SUCCESS; +} + +void efi_net_set_dhcp_ack(void *pkt, int len) +{ + int maxsize = sizeof(*dhcp_ack); + + if (!dhcp_ack) + dhcp_ack = malloc(maxsize); + + memcpy(dhcp_ack, pkt, min(len, maxsize)); +} + +/* This gets called from do_bootefi_exec(). */ +int efi_net_register(void **handle) +{ + struct efi_net_obj *netobj; + struct efi_device_path_file_path dp_net = { + .dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE, + .dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH, + .dp.length = sizeof(dp_net), + .str = { 'N', 'e', 't' }, + }; + struct efi_device_path_file_path dp_end = { + .dp.type = DEVICE_PATH_TYPE_END, + .dp.sub_type = DEVICE_PATH_SUB_TYPE_END, + .dp.length = sizeof(dp_end), + }; + + if (!eth_get_dev()) { + /* No eth device active, don't expose any */ + return 0; + } + + /* We only expose the "active" eth device, so one is enough */ + netobj = calloc(1, sizeof(*netobj)); + + /* Fill in object data */ + netobj->parent.protocols[0].guid = &efi_net_guid; + netobj->parent.protocols[0].open = efi_return_handle; + netobj->parent.protocols[1].guid = &efi_guid_device_path; + netobj->parent.protocols[1].open = efi_net_open_dp; + netobj->parent.protocols[2].guid = &efi_pxe_guid; + netobj->parent.protocols[2].open = efi_net_open_pxe; + netobj->parent.handle = &netobj->net; + netobj->net.start = efi_net_start; + netobj->net.stop = efi_net_stop; + netobj->net.initialize = efi_net_initialize; + netobj->net.reset = efi_net_reset; + netobj->net.shutdown = efi_net_shutdown; + netobj->net.receive_filters = efi_net_receive_filters; + netobj->net.station_address = efi_net_station_address; + netobj->net.statistics = efi_net_statistics; + netobj->net.mcastiptomac = efi_net_mcastiptomac; + netobj->net.nvdata = efi_net_nvdata; + netobj->net.get_status = efi_net_get_status; + netobj->net.transmit = efi_net_transmit; + netobj->net.receive = efi_net_receive; + netobj->net.mode = &netobj->net_mode; + netobj->net_mode.state = EFI_NETWORK_STARTED; + netobj->dp[0] = dp_net; + netobj->dp[1] = dp_end; + memcpy(netobj->net_mode.current_address.mac_addr, eth_get_ethaddr(), 6); + netobj->net_mode.max_packet_size = PKTSIZE; + + netobj->pxe.mode = &netobj->pxe_mode; + if (dhcp_ack) + netobj->pxe_mode.dhcp_ack = *dhcp_ack; + + /* Hook net up to the device list */ + list_add_tail(&netobj->parent.link, &efi_obj_list); + + if (handle) + *handle = &netobj->net; + + return 0; +} diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c index 3ee27ca9cc..11d01268d8 100644 --- a/lib/efi_loader/efi_runtime.c +++ b/lib/efi_loader/efi_runtime.c @@ -125,6 +125,22 @@ static const struct efi_runtime_detach_list_struct efi_runtime_detach_list[] = { /* RTC accessors are gone */ .ptr = &efi_runtime_services.get_time, .patchto = &efi_device_error, + }, { + /* Clean up system table */ + .ptr = &systab.con_in, + .patchto = NULL, + }, { + /* Clean up system table */ + .ptr = &systab.con_out, + .patchto = NULL, + }, { + /* Clean up system table */ + .ptr = &systab.std_err, + .patchto = NULL, + }, { + /* Clean up system table */ + .ptr = &systab.boottime, + .patchto = NULL, }, }; 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