Will Deacon 53b1395088 arm64: mm: Add arm64_kernel_unmapped_at_el0 helper ... Commit fc0e1299da upstream. In order for code such as TLB invalidation to operate efficiently when the decision to map the kernel at EL0 is determined at runtime, this patch introduces a helper function, arm64_kernel_unmapped_at_el0, to determine whether or not the kernel is mapped whilst running in userspace. Currently, this just reports the value of CONFIG_UNMAP_KERNEL_AT_EL0, but will later be hooked up to a fake CPU capability using a static key. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Laura Abbott <labbott@redhat.com> Tested-by: Shanker Donthineni <shankerd@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-02-16 20:22:47 +01:00
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boot	.gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore	2018-02-13 10:19:46 +01:00
configs	ARM/arm64: SoC platform updates for v4.14	2017-09-10 20:35:46 -07:00
crypto	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
include	arm64: mm: Add arm64_kernel_unmapped_at_el0 helper	2018-02-16 20:22:47 +01:00
kernel	arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN	2018-02-16 20:22:47 +01:00
kvm	arm64: Add software workaround for Falkor erratum 1041	2018-02-16 20:22:44 +01:00
lib	arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN	2018-02-16 20:22:47 +01:00
mm	arm64: mm: Allocate ASIDs in pairs	2018-02-16 20:22:47 +01:00
net	bpf, arm64: fix stack_depth tracking in combination with tail calls	2018-01-31 14:03:50 +01:00
xen	arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN	2018-02-16 20:22:47 +01:00
Kconfig	arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN	2018-02-16 20:22:47 +01:00
Kconfig.debug	arm64: relocation testing module	2017-04-04 17:03:32 +01:00
Kconfig.platforms	ARM: arm64: Devicetree updates for v4.14	2017-09-10 20:54:48 -07:00
Makefile	arm64: prevent regressions in compressed kernel image size when upgrading to binutils 2.27	2017-12-20 10:10:29 +01:00