Shawn Guo 483028edac efivars: respect EFI_UNSUPPORTED return from firmware ... As per UEFI spec 2.8B section 8.2, EFI_UNSUPPORTED may be returned by EFI variable runtime services if no variable storage is supported by firmware. In this case, there is no point for kernel to continue efivars initialization. That said, efivar_init() should fail by returning an error code, so that efivarfs will not be mounted on /sys/firmware/efi/efivars at all. Otherwise, user space like efibootmgr will be confused by the EFIVARFS_MAGIC seen there, while EFI variable calls cannot be made successfully. Cc: <stable@vger.kernel.org> # v5.10+ Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>		2021-03-17 09:40:24 +01:00
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libstub	efi: stub: omit SetVirtualAddressMap() if marked unsupported in RT_PROP table	2021-03-07 09:31:02 +01:00
test	efi/efi_test: read RuntimeServicesSupported	2020-12-09 08:37:27 +01:00
apple-properties.c	efi/apple-properties: Reinstate support for boolean properties	2020-12-31 10:28:53 +01:00
arm-runtime.c	mm: reorder includes after introduction of linux/pgtable.h	2020-06-09 09:39:13 -07:00
capsule-loader.c	efi/capsule-loader: Drop superfluous assignment	2020-02-23 21:58:31 +01:00
capsule.c	efi: capsule: clean scatter-gather entries from the D-cache	2020-12-09 08:37:27 +01:00
cper-arm.c	efi: Replace GPL license boilerplate with SPDX headers	2019-02-04 08:27:25 +01:00
cper-x86.c	x86/mce, cper: Pass x86 CPER through the MCA handling chain	2020-11-21 12:05:41 +01:00
cper.c	cper,edac,efi: Memory Error Record: bank group/address and chip id	2020-09-17 10:19:52 +03:00
dev-path-parser.c	efi/dev-path-parser: Add struct definition for vendor type device path nodes	2020-02-23 21:59:42 +01:00
earlycon.c	efi/earlycon: Fix early printk for wider fonts	2020-05-12 12:29:45 +02:00
efi-bgrt.c	efi/bgrt: Accept BGRT tables with a version of 0	2020-02-22 23:37:37 +01:00
efi-init.c	driver core: Delete pointless parameter in fwnode_operations.add_links	2020-12-09 19:14:48 +01:00
efi-pstore.c	efi: pstore: move workqueue handling out of efivars	2020-09-29 19:40:57 +02:00
efi.c	mm/gup: prevent gup_fast from racing with COW during fork	2020-12-15 12:13:39 -08:00
efibc.c	efi: efibc: check for efivars write capability	2020-09-15 18:22:47 +03:00
efivars.c	efi: efivars: limit availability to X86 builds	2020-09-29 19:40:57 +02:00
embedded-firmware.c	crypto: sha - split sha.h into sha1.h and sha2.h	2020-11-20 14:45:33 +11:00
esrt.c	efi/esrt: Fix reference count leak in esre_create_sysfs_entry.	2020-06-15 14:38:56 +02:00
fake_mem.c	efi: Fix handling of multiple efi_fake_mem= entries	2020-01-20 08:14:29 +01:00
fake_mem.h	x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP	2019-11-07 15:44:23 +01:00
fdtparams.c	efi/arm: Rewrite FDT param discovery routines	2020-02-23 21:59:42 +01:00
Kconfig	EFI updates collected by Ard Biesheuvel:	2020-12-24 12:40:07 -08:00
Makefile	efi: ia64: disable the capsule loader	2020-12-14 16:24:19 +01:00
memattr.c	efi: Move mem_attr_table out of struct efi	2020-02-23 21:59:42 +01:00
memmap.c	efi: Fix handling of multiple efi_fake_mem= entries	2020-01-20 08:14:29 +01:00
mokvar-table.c	efi: mokvar: add missing include of asm/early_ioremap.h	2020-10-02 10:08:29 +02:00
rci2-table.c	efi: Don't attempt to map RCI2 config table if it doesn't exist	2019-12-10 12:13:02 +01:00
reboot.c	efi: Use EFI ResetSystem only when available	2020-02-23 21:59:42 +01:00
riscv-runtime.c	RISC-V: Add EFI runtime services	2020-10-02 14:31:28 -07:00
runtime-map.c	efi: Replace GPL license boilerplate with SPDX headers	2019-02-04 08:27:25 +01:00
runtime-wrappers.c	efi: Add 'runtime' pointer to struct efi	2020-02-23 21:59:42 +01:00
tpm.c	EFI fixes for v5.7-rc6:	2020-05-22 20:06:25 +02:00
vars.c	efivars: respect EFI_UNSUPPORTED return from firmware	2021-03-17 09:40:24 +01:00
x86_fake_mem.c	efi/fake_mem: arrange for a resource entry per efi_fake_mem instance	2020-10-13 18:38:27 -07:00