953b519d69
Two breaking changes: * fixup_kernel_commandline was removed by upstream * GblEfiDeviceTreeMetadata's reserve field is removed, instead a `type` variable is inserted earlier in the struct. Both changes come from upstream GBL, update LK accordingly
98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
/*
|
|
* Copyright (C) 2025 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*/
|
|
|
|
#include "uefi_platform.h"
|
|
|
|
#include <libfdt.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <uefi/protocols/gbl_efi_os_configuration_protocol.h>
|
|
#include <uefi/types.h>
|
|
|
|
#include "defer.h"
|
|
|
|
__WEAK EFI_STATUS efi_dt_fixup(struct EfiDtFixupProtocol *self, void *fdt,
|
|
size_t *buffer_size, uint32_t flags) {
|
|
auto offset = fdt_subnode_offset(fdt, 0, "chosen");
|
|
if (offset < 0) {
|
|
printf("Failed to find chosen node %d\n", offset);
|
|
return SUCCESS;
|
|
}
|
|
int length = 0;
|
|
auto prop = fdt_get_property(fdt, offset, "bootargs", &length);
|
|
|
|
if (prop == nullptr) {
|
|
printf("Failed to find chosen/bootargs prop\n");
|
|
return SUCCESS;
|
|
}
|
|
char *new_prop_data = reinterpret_cast<char *>(malloc(length));
|
|
DEFER {
|
|
free(new_prop_data);
|
|
new_prop_data = nullptr;
|
|
};
|
|
auto prop_length = strnlen(prop->data, length);
|
|
static constexpr auto &&to_add =
|
|
"console=ttyAMA0 earlycon=pl011,mmio32,0x9000000 ";
|
|
memset(new_prop_data, 0, length);
|
|
memcpy(new_prop_data, to_add, sizeof(to_add) - 1);
|
|
memcpy(new_prop_data + sizeof(to_add) - 1, prop->data, prop_length);
|
|
auto ret = fdt_setprop(fdt, offset, "bootargs", new_prop_data, length);
|
|
|
|
printf("chosen/bootargs: %d %d \"%s\"\n", ret, length, new_prop_data);
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
// Generates fixups for the bootconfig built by GBL.
|
|
__WEAK EfiStatus fixup_bootconfig(struct GblEfiOsConfigurationProtocol *self,
|
|
const char *bootconfig, size_t size,
|
|
char *fixup, size_t *fixup_buffer_size) {
|
|
printf("%s(%p, %s, %lu, %lu)\n", __FUNCTION__, self, bootconfig, size,
|
|
*fixup_buffer_size);
|
|
constexpr auto &&to_add =
|
|
"\nandroidboot.fstab_suffix=cf.f2fs."
|
|
"hctr2\nandroidboot.boot_devices=4010000000.pcie";
|
|
const auto final_len = sizeof(to_add);
|
|
if (final_len > *fixup_buffer_size) {
|
|
*fixup_buffer_size = final_len;
|
|
return OUT_OF_RESOURCES;
|
|
}
|
|
*fixup_buffer_size = final_len;
|
|
memcpy(fixup, to_add, final_len);
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
// Selects which device trees and overlays to use from those loaded by GBL.
|
|
__WEAK EfiStatus select_device_trees(struct GblEfiOsConfigurationProtocol *self,
|
|
GblEfiVerifiedDeviceTree *device_trees,
|
|
size_t num_device_trees) {
|
|
printf("%s(%p, %p %lu)\n", __FUNCTION__, self, device_trees,
|
|
num_device_trees);
|
|
return UNSUPPORTED;
|
|
}
|
|
|
|
__WEAK EfiStatus exit_boot_services(EfiHandle image_handle, size_t map_key) {
|
|
printf("%s is called\n", __FUNCTION__);
|
|
return SUCCESS;
|
|
}
|
|
|
|
__WEAK EfiStatus platform_setup_system_table(EfiSystemTable *table) {
|
|
printf("%s is called\n", __FUNCTION__);
|
|
return SUCCESS;
|
|
}
|