[PATCH 03/27] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON
From: Alex Bennée <hidden>
Date: 2017-08-18 12:02:36
Also in:
kvmarm, linux-arch
Dave Martin [off-list ref] writes:
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>
Reviewed-by: Alex Benn?e <redacted>
quoted hunk ↗ jump to hunk
--- 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
-- Alex Benn?e