linux/arch/x86/platform
Ard Biesheuvel f80c9f6476 efi/x86: Remove support for EFI time and counter services in mixed mode
Mixed mode calls at runtime are rather tricky with vmap'ed stacks,
as we can no longer assume that data passed in by the callers of the
EFI runtime wrapper routines is contiguous in physical memory.

We need to fix this, but before we do, let's drop the implementations
of routines that we know are never used on x86, i.e., the RTC related
ones. Given that UEFI rev2.8 permits any runtime service to return
EFI_UNSUPPORTED at runtime, let's return that instead.

As get_next_high_mono_count() is never used at all, even on other
architectures, let's make that return EFI_UNSUPPORTED too.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: linux-efi@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200221084849.26878-3-ardb@kernel.org
2020-02-26 15:31:42 +01:00
..
atom Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
ce4100 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
efi efi/x86: Remove support for EFI time and counter services in mixed mode 2020-02-26 15:31:42 +01:00
geode Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 17:49:45 -07:00
goldfish treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
intel x86/platform/intel/iosf_mbi Rewrite locking 2019-08-19 20:52:39 +02:00
intel-mid drm/gma500: Pass GPIO for Intel MID using descriptors 2019-12-14 00:26:10 +01:00
intel-quark x86/platform/intel/quark: Explicitly include linux/io.h for virt_to_phys() 2019-12-10 10:15:47 +01:00
iris treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 70 2019-05-24 17:36:47 +02:00
olpc - Core Frameworks 2019-12-01 16:16:31 -08:00
pvh x86/asm: Make some functions local 2019-10-18 11:34:39 +02:00
scx200 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
sfi x86: Use pr_warn instead of pr_warning 2019-10-18 15:00:18 +02:00
ts5500 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
uv proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00