Will Deacon 679db70801 arm64: entry: Place an SB sequence following an ERET instruction ...

Some CPUs can speculate past an ERET instruction and potentially perform
speculative accesses to memory before processing the exception return.
Since the register state is often controlled by a lower privilege level
at the point of an ERET, this could potentially be used as part of a
side-channel attack.

This patch emits an SB sequence after each ERET so that speculation is
held up on exception return.

Signed-off-by: Will Deacon <will.deacon@arm.com>

2018-12-06 16:47:05 +00:00

..

hyp

arm64: entry: Place an SB sequence following an ERET instruction

2018-12-06 16:47:05 +00:00

debug.c

KVM: arm64: Repurpose vcpu_arch.debug_flags for general-purpose flags

2018-05-25 12:28:13 +01:00

fpsimd.c

KVM: arm64: Avoid mistaken attempts to save SVE state for vcpus

2018-06-21 09:14:44 +01:00

guest.c

KVM updates for v4.20

2018-10-25 17:57:35 -07:00

handle_exit.c

KVM: arm64: Safety check PSTATE when entering guest and handle IL

2018-10-19 11:13:03 +01:00

hyp-init.S

arm64: KVM: Enable Common Not Private translations

2018-09-18 12:03:34 +01:00

hyp.S

arm64: hyp-stub/KVM: Kill __hyp_get_vectors

2017-04-09 07:49:34 -07:00

inject_fault.c

arm/arm64: KVM: Add KVM_GET/SET_VCPU_EVENTS

2018-07-21 16:02:30 +01:00

irq.h

KVM: arm/arm64: Enable irqchip routing

2016-07-22 18:52:01 +01:00

Kconfig

KVM: arm64: Optimise FPSIMD handling to reduce guest/host thrashing

2018-05-25 12:28:28 +01:00

Makefile

KVM: arm64: Optimise FPSIMD handling to reduce guest/host thrashing

2018-05-25 12:28:28 +01:00

regmap.c

kvm/arm: use PSR_AA32 definitions

2018-07-05 17:24:15 +01:00

reset.c

arm/arm64: KVM: Enable 32 bits kvm vcpu events support

2018-10-18 10:14:03 +01:00

sys_regs_generic_v8.c

KVM: arm64: Rewrite system register accessors to read/write functions

2018-03-19 10:53:16 +00:00

sys_regs.c

KVM: arm64: vgic-v3: Add support for ICC_SGI0R_EL1 and ICC_ASGI1R_EL1 accesses

2018-08-12 12:06:35 +01:00

sys_regs.h

KVM: arm64: Rewrite system register accessors to read/write functions

2018-03-19 10:53:16 +00:00

trace.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

va_layout.c

arm64: KVM: Allow mapping of vectors outside of the RAM region

2018-03-19 13:06:46 +00:00

vgic-sys-reg-v3.c

KVM: arm/arm64: Extract GICv3 max APRn index calculation

2017-09-05 17:33:39 +02:00