diff options
Diffstat (limited to 'drivers/firmware/efi/efi.c')
| -rw-r--r-- | drivers/firmware/efi/efi.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index e4080ad96089..11857af72859 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -21,6 +21,7 @@ #include <linux/device.h> #include <linux/efi.h> #include <linux/of.h> +#include <linux/initrd.h> #include <linux/io.h> #include <linux/kexec.h> #include <linux/platform_device.h> @@ -55,6 +56,7 @@ EXPORT_SYMBOL(efi); unsigned long __ro_after_init efi_rng_seed = EFI_INVALID_TABLE_ADDR; static unsigned long __initdata mem_reserve = EFI_INVALID_TABLE_ADDR; static unsigned long __initdata rt_prop = EFI_INVALID_TABLE_ADDR; +static unsigned long __initdata initrd = EFI_INVALID_TABLE_ADDR; struct mm_struct efi_mm = { .mm_rb = RB_ROOT, @@ -532,6 +534,7 @@ static const efi_config_table_type_t common_tables[] __initconst = { {LINUX_EFI_TPM_EVENT_LOG_GUID, &efi.tpm_log, "TPMEventLog" }, {LINUX_EFI_TPM_FINAL_LOG_GUID, &efi.tpm_final_log, "TPMFinalLog" }, {LINUX_EFI_MEMRESERVE_TABLE_GUID, &mem_reserve, "MEMRESERVE" }, + {LINUX_EFI_INITRD_MEDIA_GUID, &initrd, "INITRD" }, {EFI_RT_PROPERTIES_TABLE_GUID, &rt_prop, "RTPROP" }, #ifdef CONFIG_EFI_RCI2_TABLE {DELLEMC_EFI_RCI2_TABLE_GUID, &rci2_table_phys }, @@ -674,6 +677,18 @@ int __init efi_config_parse_tables(const efi_config_table_t *config_tables, } } + if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && + initrd != EFI_INVALID_TABLE_ADDR && phys_initrd_size == 0) { + struct linux_efi_initrd *tbl; + + tbl = early_memremap(initrd, sizeof(*tbl)); + if (tbl) { + phys_initrd_start = tbl->base; + phys_initrd_size = tbl->size; + early_memunmap(tbl, sizeof(*tbl)); + } + } + return 0; } |