Will Deacon 63d13760ab arm64: mm: Map entry trampoline into trampoline and kernel page tables ... Commit 51a0048beb upstream. The exception entry trampoline needs to be mapped at the same virtual address in both the trampoline page table (which maps nothing else) and also the kernel page table, so that we can swizzle TTBR1_EL1 on exceptions from and return to EL0. This patch maps the trampoline at a fixed virtual address in the fixmap area of the kernel virtual address space, which allows the kernel proper to be randomized with respect to the trampoline when KASLR is enabled. 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
..
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: Map entry trampoline into trampoline and kernel page tables	2018-02-16 20:22:47 +01:00
kernel	arm64: mm: Map entry trampoline into trampoline and kernel page tables	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: Map entry trampoline into trampoline and kernel page tables	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