When running the EFI app, we need to exit boot services before jumping to Linux.
At some point it may be possible to jump to Linux and pass on the boot services, so that the Linux efistub can be used. For now, this is not implemented.
Signed-off-by: Simon Glass sjg@chromium.org ---
arch/x86/lib/bootm.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/arch/x86/lib/bootm.c b/arch/x86/lib/bootm.c index 9beb376bb9c..61cb7bc6116 100644 --- a/arch/x86/lib/bootm.c +++ b/arch/x86/lib/bootm.c @@ -10,6 +10,7 @@ #include <common.h> #include <bootstage.h> #include <command.h> +#include <efi.h> #include <hang.h> #include <log.h> #include <asm/global_data.h> @@ -156,6 +157,23 @@ int boot_linux_kernel(ulong setup_base, ulong entry, bool image_64bit) #ifdef CONFIG_SYS_COREBOOT timestamp_add_now(TS_U_BOOT_START_KERNEL); #endif + + /* + * Exit EFI boot services just before jumping, after all console + * output, since the console won't be available afterwards. + */ + if (IS_ENABLED(CONFIG_EFI_APP)) { + int ret; + + ret = efi_store_memory_map(efi_get_priv()); + if (ret) + return ret; + printf("Exiting EFI boot services\n"); + ret = efi_call_exit_boot_services(); + if (ret) + return ret; + } + if (image_64bit) { if (!cpu_has_64bit()) { puts("Cannot boot 64-bit kernel on 32-bit machine\n");