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kboot: Pass through SEPFW and boot object manifests

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Signed-off-by: Sasha Finkelstein <fnkl.kernel@gmail.com>
This commit is contained in:
Sasha Finkelstein 2024-11-10 23:26:35 +01:00 committed by Hector Martin
parent 87a1279b86
commit 62ff43f095
1 changed files with 51 additions and 0 deletions
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51
src/kboot.c
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@ -1876,6 +1876,55 @@ static int dt_set_display(void)
return dt_vram_reserved_region(disp_cfg->dcp_alias, "disp0");
}
static int dt_set_sep(void)
{
const char *path = fdt_get_alias(dt, "sep");
if (path == NULL) {
printf("FDT: sep alias not found in devtree\n");
return 0;
}
int anode_mmap = adt_path_offset(adt, "/chosen/memory-map");
if (anode_mmap < 0)
bail("ADT: /chosen/memory-map not found \n");
u64 phys_map[2];
size_t ret = ADT_GETPROP_ARRAY(adt, anode_mmap, "SEPFW", phys_map);
if (ret != sizeof(phys_map))
bail("ADT: could not get sepfw memory\n");
const char *node_name = "sep-firmware";
int mem_node =
dt_get_or_add_reserved_mem(node_name, "apple,asc-mem", false, phys_map[0], phys_map[1]);
if (mem_node < 0)
bail("FDT: failed to reserve sepfw");
uint32_t mem_phandle = fdt_get_phandle(dt, mem_node);
ret = dt_device_add_mem_region(path, mem_phandle, "sepfw");
if (ret < 0)
bail("FDT: failed to add sepfw region");
int node = fdt_path_offset(dt, path);
if (node < 0)
bail("FDT: sep not not found in devtree\n");
int anode_manifest = adt_path_offset(adt, "/chosen/boot-object-manifests");
if (anode_manifest < 0)
bail("ADT: /chosen/boot-object-manifests not found \n");
ret = ADT_GETPROP_ARRAY(adt, anode_manifest, "lpol", phys_map);
if (ret != sizeof(phys_map))
bail("ADT: could not get local policy\n");
fdt_setprop(dt, node, "local-policy-manifest", (void *)phys_map[0], phys_map[1]);
ret = ADT_GETPROP_ARRAY(adt, anode_manifest, "ibot", phys_map);
if (ret != sizeof(phys_map))
bail("ADT: could not get iboot manifest\n");
fdt_setprop(dt, node, "iboot-manifest", (void *)phys_map[0], phys_map[1]);
return 0;
}
static int dt_set_sio_fwdata(const char *adt_path, const char *fdt_alias)
{
int node = fdt_path_offset(dt, fdt_alias);
@ -2430,6 +2479,8 @@ int kboot_prepare_dt(void *fdt)
return -1;
if (dt_set_multitouch())
return -1;
if (dt_set_sep())
return -1;
if (dt_set_nvram())
return -1;
if (dt_set_ipd())