[PATCH 03/27] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON

[PATCH 00/27] ARM Scalable Vector Extension (SVE) · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 01/27] regset: Add support for dynamically sized regsets · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 01/27] regset: Add support for dynamically sized regsets · Alex Bennée <hidden> · 2017-08-18
[PATCH 02/27] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 02/27] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Marc Zyngier <hidden> · 2017-08-16
[PATCH 02/27] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Dave.Martin@arm.com (Dave Martin) · 2017-08-16
[PATCH 02/27] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Marc Zyngier <hidden> · 2017-08-17
[PATCH 02/27] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Dave.Martin@arm.com (Dave Martin) · 2017-08-17
[PATCH 03/27] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 03/27] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON · Alex Bennée <hidden> · 2017-08-18
[PATCH 04/27] arm64: Port deprecated instruction emulation to new sysctl interface · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 04/27] arm64: Port deprecated instruction emulation to new sysctl interface · Alex Bennée <hidden> · 2017-08-18
[PATCH 05/27] arm64: fpsimd: Simplify uses of {set, clear}_ti_thread_flag() · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 05/27] arm64: fpsimd: Simplify uses of {set, clear}_ti_thread_flag() · Ard Biesheuvel <hidden> · 2017-08-15
[PATCH 05/27] arm64: fpsimd: Simplify uses of {set, clear}_ti_thread_flag() · Alex Bennée <hidden> · 2017-08-18
[PATCH 06/27] arm64/sve: System register and exception syndrome definitions · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 06/27] arm64/sve: System register and exception syndrome definitions · Alex Bennée <hidden> · 2017-08-21
[PATCH 06/27] arm64/sve: System register and exception syndrome definitions · Alex Bennée <hidden> · 2017-08-21
[PATCH 06/27] arm64/sve: System register and exception syndrome definitions · Dave.Martin@arm.com (Dave Martin) · 2017-08-21
[PATCH 06/27] arm64/sve: System register and exception syndrome definitions · Alex Bennée <hidden> · 2017-08-21
[PATCH 06/27] arm64/sve: System register and exception syndrome definitions · Dave.Martin@arm.com (Dave Martin) · 2017-08-21
[PATCH 06/27] arm64/sve: System register and exception syndrome definitions · Alex Bennée <hidden> · 2017-08-21
[PATCH 06/27] arm64/sve: System register and exception syndrome definitions · Dave.Martin@arm.com (Dave Martin) · 2017-08-21
[PATCH 06/27] arm64/sve: System register and exception syndrome definitions · Alex Bennée <hidden> · 2017-08-21
[PATCH 07/27] arm64/sve: Low-level SVE architectural state manipulation functions · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 07/27] arm64/sve: Low-level SVE architectural state manipulation functions · Alex Bennée <hidden> · 2017-08-21
[PATCH 07/27] arm64/sve: Low-level SVE architectural state manipulation functions · Dave.Martin@arm.com (Dave Martin) · 2017-08-21
[PATCH 08/27] arm64/sve: Kconfig update and conditional compilation support · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 08/27] arm64/sve: Kconfig update and conditional compilation support · Alex Bennée <hidden> · 2017-08-21
[PATCH 09/27] arm64/sve: Signal frame and context structure definition · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 09/27] arm64/sve: Signal frame and context structure definition · Alex Bennée <hidden> · 2017-08-22
[PATCH 09/27] arm64/sve: Signal frame and context structure definition · Dave.Martin@arm.com (Dave Martin) · 2017-08-22
[PATCH 09/27] arm64/sve: Signal frame and context structure definition · Alex Bennée <hidden> · 2017-08-22
[PATCH 09/27] arm64/sve: Signal frame and context structure definition · Dave.Martin@arm.com (Dave Martin) · 2017-08-22
[PATCH 09/27] arm64/sve: Signal frame and context structure definition · Alex Bennée <hidden> · 2017-08-22
[PATCH 09/27] arm64/sve: Signal frame and context structure definition · Dave.Martin@arm.com (Dave Martin) · 2017-08-22
[PATCH 10/27] arm64/sve: Low-level CPU setup · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 10/27] arm64/sve: Low-level CPU setup · Alex Bennée <hidden> · 2017-08-22
[PATCH 10/27] arm64/sve: Low-level CPU setup · Dave.Martin@arm.com (Dave Martin) · 2017-08-22
[PATCH 11/27] arm64/sve: Core task context handling · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 11/27] arm64/sve: Core task context handling · Ard Biesheuvel <hidden> · 2017-08-15
[PATCH 11/27] arm64/sve: Core task context handling · Dave.Martin@arm.com (Dave Martin) · 2017-08-16
[PATCH 11/27] arm64/sve: Core task context handling · Dave.Martin@arm.com (Dave Martin) · 2017-08-17
[PATCH 11/27] arm64/sve: Core task context handling · Ard Biesheuvel <hidden> · 2017-08-17
[PATCH 11/27] arm64/sve: Core task context handling · Alex Bennée <hidden> · 2017-08-22
[PATCH 11/27] arm64/sve: Core task context handling · Dave.Martin@arm.com (Dave Martin) · 2017-08-22
[PATCH 11/27] arm64/sve: Core task context handling · Alex Bennée <hidden> · 2017-08-22
[PATCH 12/27] arm64/sve: Support vector length resetting for new processes · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 12/27] arm64/sve: Support vector length resetting for new processes · Alex Bennée <hidden> · 2017-08-22
[PATCH 12/27] arm64/sve: Support vector length resetting for new processes · Dave.Martin@arm.com (Dave Martin) · 2017-08-22
[PATCH 13/27] arm64/sve: Signal handling support · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 13/27] arm64/sve: Signal handling support · Alex Bennée <hidden> · 2017-08-23
[PATCH 13/27] arm64/sve: Signal handling support · Dave.Martin@arm.com (Dave Martin) · 2017-08-23
[PATCH 14/27] arm64/sve: Backend logic for setting the vector length · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 14/27] arm64/sve: Backend logic for setting the vector length · Alex Bennée <hidden> · 2017-08-23
[PATCH 14/27] arm64/sve: Backend logic for setting the vector length · Dave.Martin@arm.com (Dave Martin) · 2017-08-23
[PATCH 15/27] arm64/sve: Probe SVE capabilities and usable vector lengths · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 15/27] arm64/sve: Probe SVE capabilities and usable vector lengths · Suzuki.Poulose@arm.com (Suzuki K Poulose) · 2017-08-16
[PATCH 15/27] arm64/sve: Probe SVE capabilities and usable vector lengths · Dave.Martin@arm.com (Dave Martin) · 2017-08-17
[PATCH 15/27] arm64/sve: Probe SVE capabilities and usable vector lengths · Suzuki.Poulose@arm.com (Suzuki K Poulose) · 2017-08-17
[PATCH 16/27] arm64/sve: Preserve SVE registers around kernel-mode NEON use · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 16/27] arm64/sve: Preserve SVE registers around kernel-mode NEON use · Ard Biesheuvel <hidden> · 2017-08-15
[PATCH 17/27] arm64/sve: Preserve SVE registers around EFI runtime service calls · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 17/27] arm64/sve: Preserve SVE registers around EFI runtime service calls · Ard Biesheuvel <hidden> · 2017-08-15
[PATCH 17/27] arm64/sve: Preserve SVE registers around EFI runtime service calls · Dave.Martin@arm.com (Dave Martin) · 2017-08-16
[PATCH 18/27] arm64/sve: ptrace and ELF coredump support · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 19/27] arm64/sve: Add prctl controls for userspace vector length management · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 20/27] arm64/sve: Add sysctl to set the default vector length for new processes · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 21/27] arm64/sve: KVM: Prevent guests from using SVE · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 21/27] arm64/sve: KVM: Prevent guests from using SVE · Marc Zyngier <hidden> · 2017-08-15
[PATCH 21/27] arm64/sve: KVM: Prevent guests from using SVE · Dave.Martin@arm.com (Dave Martin) · 2017-08-16
[PATCH 21/27] arm64/sve: KVM: Prevent guests from using SVE · Marc Zyngier <hidden> · 2017-08-16
[PATCH 21/27] arm64/sve: KVM: Prevent guests from using SVE · Marc Zyngier <hidden> · 2017-08-16
[PATCH 21/27] arm64/sve: KVM: Prevent guests from using SVE · Dave.Martin@arm.com (Dave Martin) · 2017-08-16
[PATCH 22/27] arm64/sve: KVM: Treat guest SVE use as undefined instruction execution · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 23/27] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 23/27] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Marc Zyngier <hidden> · 2017-08-15
[PATCH 23/27] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Dave.Martin@arm.com (Dave Martin) · 2017-08-16
[PATCH 23/27] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Marc Zyngier <hidden> · 2017-08-16
[PATCH 23/27] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Dave.Martin@arm.com (Dave Martin) · 2017-08-16
[PATCH 24/27] arm64/sve: Detect SVE and activate runtime support · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[PATCH 24/27] arm64/sve: Detect SVE and activate runtime support · Suzuki.Poulose@arm.com (Suzuki K Poulose) · 2017-08-16
[PATCH 24/27] arm64/sve: Detect SVE and activate runtime support · Dave.Martin@arm.com (Dave Martin) · 2017-08-17
[PATCH 25/27] arm64/sve: Add documentation · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[RFC PATCH 26/27] arm64: signal: Report signal frame size to userspace via auxv · Dave.Martin@arm.com (Dave Martin) · 2017-08-09
[RFC PATCH 27/27] arm64/sve: signal: Include SVE when computing AT_MINSIGSTKSZ · Dave.Martin@arm.com (Dave Martin) · 2017-08-09

STALE3212d

From: Dave.Martin@arm.com (Dave Martin)
Date: 2017-08-09 12:05:09
Also in: kvmarm, linux-arch
Subsystem: arm64 port (aarch64 architecture), the rest · Maintainers: Catalin Marinas, Will Deacon, Linus Torvalds

The EFI runtime services ABI permits calls to EFI to clobber
certain FPSIMD/NEON registers, as per the AArch64 procedure call
standard.

Saving/restoring the clobbered registers around such calls needs
KERNEL_MODE_NEON, but the dependency is missing from Kconfig.

This patch adds the missing dependency.

This will aid bisection of the patches implementing support for the
ARM Scalable Vector Extension (SVE).

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index dfd9086..fdc302e 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig

@@ -1050,6 +1050,7 @@ config EFI_STUB
 config EFI
 	bool "UEFI runtime support"
 	depends on OF && !CPU_BIG_ENDIAN
+	depends on KERNEL_MODE_NEON
 	select LIBFDT
 	select UCS2_STRING
 	select EFI_PARAMS_FROM_FDT

-- 
2.1.4

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