kernel_optimize_test/arch/arm64
Marc Zyngier 73f3816609 arm64: Advertise mitigation of Spectre-v2, or lack thereof
We currently have a list of CPUs affected by Spectre-v2, for which
we check that the firmware implements ARCH_WORKAROUND_1. It turns
out that not all firmwares do implement the required mitigation,
and that we fail to let the user know about it.

Instead, let's slightly revamp our checks, and rely on a whitelist
of cores that are known to be non-vulnerable, and let the user know
the status of the mitigation in the kernel log.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-26 16:29:15 +01:00
..
boot arm64: tegra: Disable CQE Support for SDMMC4 on Tegra186 2019-03-25 17:12:20 +01:00
configs Allwinner arm64 defconfig changes for 5.1 2019-02-15 16:51:26 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-03-05 09:09:55 -08:00
include KVM/ARM fixes for 5.1 2019-03-28 19:07:30 +01:00
kernel arm64: Advertise mitigation of Spectre-v2, or lack thereof 2019-04-26 16:29:15 +01:00
kvm KVM: arm64: Reset the PMU in preemptible context 2019-03-19 17:56:24 +00:00
lib arm64: string: use asm EXPORT_SYMBOL() 2018-12-10 11:50:12 +00:00
mm treewide: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
net arm64: bpf: implement jitting of JMP32 2019-01-26 13:33:02 -08:00
xen
Kconfig arm64: remove obsolete selection of MULTI_IRQ_HANDLER 2019-03-20 17:34:16 +00:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Kconfig.platforms This pull request brings in a build fix for arm64 with bcm2835 2019-03-18 10:31:24 -07:00
Makefile kasan, arm64: adjust shadow size for tag-based mode 2018-12-28 12:11:43 -08:00