Commit 48b9491c authored by Ard Biesheuvel's avatar Ard Biesheuvel
Browse files

efi: libstub: Drop handling of EFI properties table 



The EFI properties table was a short lived experiment that never saw the
light of day on non-x86 (if at all) so let's drop the handling of it.

Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
parent 085e2ff9

drivers/firmware/efi/libstub/efi-stub.c

+0 −13
Original line number Diff line number Diff line
@@ -126,7 +126,6 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, 
	unsigned long reserve_addr = 0;

	unsigned long reserve_size = 0;

	struct screen_info *si;

	efi_properties_table_t *prop_tbl;



	efi_system_table = sys_table_arg;
@@ -205,18 +204,6 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, 


	efi_random_get_seed();



	/*

	 * If the NX PE data feature is enabled in the properties table, we

	 * should take care not to create a virtual mapping that changes the

	 * relative placement of runtime services code and data regions, as

	 * they may belong to the same PE/COFF executable image in memory.

	 * The easiest way to achieve that is to simply use a 1:1 mapping.

	 */

	prop_tbl = get_efi_config_table(EFI_PROPERTIES_TABLE_GUID);

	flat_va_mapping |= prop_tbl &&

			   (prop_tbl->memory_protection_attribute &

			   EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA);



	/* force efi_novamap if SetVirtualAddressMap() is unsupported */

	efi_novamap |= !(get_supported_rt_services() &

			 EFI_RT_SUPPORTED_SET_VIRTUAL_ADDRESS_MAP);