Marc Zyngier 71d65a3fc6 arm64: Introduce a way to disable the 32bit vdso ... commit 97884ca8c2 upstream. [this is a redesign rather than a backport] We have a class of errata (grouped under the ARM64_WORKAROUND_1418040 banner) that force the trapping of counter access from 32bit EL0. We would normally disable the whole vdso for such defect, except that it would disable it for 64bit userspace as well, which is a shame. Instead, add a new vdso_clock_mode, which signals that the vdso isn't usable for compat tasks. This gets checked in the new vdso_clocksource_ok() helper, now provided for the 32bit vdso. Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200706163802.1836732-2-maz@kernel.org Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-07-22 09:32:50 +02:00
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asm	arm64: Introduce a way to disable the 32bit vdso	2020-07-22 09:32:50 +02:00
debug	Renesas ARM SoC updates for v5.4	2019-09-03 23:12:58 +02:00
uapi/asm	KVM: arm/arm64: vgic: Allow more than 256 vcpus for KVM_IRQ_LINE	2019-09-09 12:29:09 +01:00