Marc Zyngier 27e91ad1e7 kvm: arm/arm64: vgic-v3: Tighten synchronization for guests using v2 on v3 ... On guest exit, and when using GICv2 on GICv3, we use a dsb(st) to force synchronization between the memory-mapped guest view and the system-register view that the hypervisor uses. This is incorrect, as the spec calls out the need for "a DSB whose required access type is both loads and stores with any Shareability attribute", while we're only synchronizing stores. We also lack an isb after the dsb to ensure that the latter has actually been executed before we start reading stuff from the sysregs. The fix is pretty easy: turn dsb(st) into dsb(sy), and slap an isb() just after. Cc: stable@vger.kernel.org Fixes: f68d2b1b73 ("arm64: KVM: Implement vgic-v3 save/restore") Acked-by: Christoffer Dall <cdall@kernel.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>		2018-03-14 18:31:26 +00:00
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hyp	kvm: arm/arm64: vgic-v3: Tighten synchronization for guests using v2 on v3	2018-03-14 18:31:26 +00:00
vgic	KVM: arm/arm64: vgic: Don't populate multiple LRs with the same vintid	2018-03-14 18:31:04 +00:00
aarch32.c	KVM: arm/arm64: Unify 32bit fault injection	2017-11-06 16:23:20 +01:00
arch_timer.c	KVM: arm/arm64: Reduce verbosity of KVM init log	2018-03-14 18:29:14 +00:00
arm.c	KVM: arm/arm64: Avoid vcpu_load for other vcpu ioctls than KVM_RUN	2018-03-14 18:29:14 +00:00
mmio.c	KVM: Fix stack-out-of-bounds read in write_mmio	2017-12-18 12:57:01 +01:00
mmu.c	KVM: arm/arm64: Reduce verbosity of KVM init log	2018-03-14 18:29:14 +00:00
perf.c	KVM: arm/arm64: Move shared files to virt/kvm/arm	2017-05-04 13:57:26 +02:00
pmu.c	KVM: arm/arm64: PMU: Fix overflow interrupt injection	2017-07-25 14:18:01 +01:00
psci.c	arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support	2018-02-06 22:54:05 +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