linux_dsm_epyc7002/arch/arm64
Will Deacon fc0e1299da arm64: mm: Add arm64_kernel_unmapped_at_el0 helper
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>
2017-12-11 13:40:41 +00:00
..
boot Amlogic fixes for v4.15-rc 2017-12-09 20:23:29 -08:00
configs arm64: defconfig: enable CONFIG_GPIO_UNIPHIER 2017-10-30 14:41:54 +01:00
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 2017-12-11 13:40:41 +00:00
kernel arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN 2017-12-11 13:40:35 +00:00
kvm kvm: arm64: handle single-step of hyp emulated mmio instructions 2017-11-29 18:17:47 +01:00
lib arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN 2017-12-11 13:40:35 +00:00
mm arm64: mm: Allocate ASIDs in pairs 2017-12-11 13:40:38 +00:00
net bpf, arm64: implement jiting of BPF_J{LT, LE, SLT, SLE} 2017-08-09 16:53:56 -07:00
xen arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN 2017-12-11 13:40:35 +00:00
Kconfig arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN 2017-12-11 13:40:35 +00:00
Kconfig.debug arm64: relocation testing module 2017-04-04 17:03:32 +01:00
Kconfig.platforms ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
Makefile arm64: ftrace: emit ftrace-mod.o contents through code 2017-12-01 13:04:59 +00:00