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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2019-01-08 18:13:06 +0100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2019-02-13 09:40:06 +0100 |
| commit | f6c6df7ebc12fdaab252c5869732cef6fa48d864 (patch) | |
| tree | a9dd4b1d6b4a9304e17dc37042e63174d211cfc2 /cmd | |
| parent | b4f471f18e68b340e5b968e2d611b83f709a78ce (diff) | |
| download | u-boot-f6c6df7ebc12fdaab252c5869732cef6fa48d864.tar.gz u-boot-f6c6df7ebc12fdaab252c5869732cef6fa48d864.tar.bz2 u-boot-f6c6df7ebc12fdaab252c5869732cef6fa48d864.zip | |
efi_loader: refactor switch to non-secure mode
Refactor the switch from supervisor to hypervisor to a new function called
at the beginning of do_bootefi().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/bootefi.c | 71 |
1 files changed, 4 insertions, 67 deletions
diff --git a/cmd/bootefi.c b/cmd/bootefi.c index bcdd29ebed..ee685d8644 100644 --- a/cmd/bootefi.c +++ b/cmd/bootefi.c @@ -5,8 +5,9 @@ * Copyright (c) 2016 Alexander Graf */ -#include <charset.h> #include <common.h> +#include <bootm.h> +#include <charset.h> #include <command.h> #include <dm.h> #include <efi_loader.h> @@ -21,11 +22,6 @@ #include <asm-generic/unaligned.h> #include <linux/linkage.h> -#ifdef CONFIG_ARMV7_NONSEC -#include <asm/armv7.h> -#include <asm/secure.h> -#endif - DECLARE_GLOBAL_DATA_PTR; static struct efi_device_path *bootefi_image_path; @@ -151,34 +147,6 @@ static efi_status_t efi_do_enter( return ret; } -#ifdef CONFIG_ARM64 -static efi_status_t efi_run_in_el2(EFIAPI efi_status_t (*entry)( - efi_handle_t image_handle, struct efi_system_table *st), - efi_handle_t image_handle, struct efi_system_table *st) -{ - /* Enable caches again */ - dcache_enable(); - - return efi_do_enter(image_handle, st, entry); -} -#endif - -#ifdef CONFIG_ARMV7_NONSEC -static bool is_nonsec; - -static efi_status_t efi_run_in_hyp(EFIAPI efi_status_t (*entry)( - efi_handle_t image_handle, struct efi_system_table *st), - efi_handle_t image_handle, struct efi_system_table *st) -{ - /* Enable caches again */ - dcache_enable(); - - is_nonsec = true; - - return efi_do_enter(image_handle, st, entry); -} -#endif - /* * efi_carve_out_dt_rsv() - Carve out DT reserved memory ranges * @@ -358,39 +326,6 @@ static efi_status_t do_bootefi_exec(void *efi, goto err_prepare; } -#ifdef CONFIG_ARM64 - /* On AArch64 we need to make sure we call our payload in < EL3 */ - if (current_el() == 3) { - smp_kick_all_cpus(); - dcache_disable(); /* flush cache before switch to EL2 */ - - /* Move into EL2 and keep running there */ - armv8_switch_to_el2((ulong)entry, - (ulong)&image_obj->header, - (ulong)&systab, 0, (ulong)efi_run_in_el2, - ES_TO_AARCH64); - - /* Should never reach here, efi exits with longjmp */ - while (1) { } - } -#endif - -#ifdef CONFIG_ARMV7_NONSEC - if (armv7_boot_nonsec() && !is_nonsec) { - dcache_disable(); /* flush cache before switch to HYP */ - - armv7_init_nonsec(); - secure_ram_addr(_do_nonsec_entry)( - efi_run_in_hyp, - (uintptr_t)entry, - (uintptr_t)&image_obj->header, - (uintptr_t)&systab); - - /* Should never reach here, efi exits with longjmp */ - while (1) { } - } -#endif - ret = efi_do_enter(&image_obj->header, &systab, entry); err_prepare: @@ -476,6 +411,8 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) /* Allow unaligned memory access */ allow_unaligned(); + switch_to_non_secure_mode(); + /* Initialize EFI drivers */ r = efi_init_obj_list(); if (r != EFI_SUCCESS) { |