Marc Zyngier 7d14919c0d arm64: KVM: Only force FPEXC32_EL2.EN if trapping FPSIMD ... If trapping FPSIMD in the context of an AArch32 guest, it is critical to set FPEXC32_EL2.EN to 1 so that the trapping is taken to EL2 and not EL1. Conversely, it is just as critical *not* to set FPEXC32_EL2.EN to 1 if we're not going to trap FPSIMD, as we then corrupt the existing VFP state. Moving the call to __activate_traps_fpsimd32 to the point where we know for sure that we are going to trap ensures that we don't set that bit spuriously. Fixes: e6b673b741 ("KVM: arm64: Optimise FPSIMD handling to reduce guest/host thrashing") Cc: stable@vger.kernel.org # v4.18 Cc: Dave Martin <dave.martin@arm.com> Reported-by: Alexander Graf <agraf@suse.de> Tested-by: Alexander Graf <agraf@suse.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>		2018-09-07 15:05:50 +02:00
..
debug-sr.c	KVM: arm64: Repurpose vcpu_arch.debug_flags for general-purpose flags	2018-05-25 12:28:13 +01:00
entry.S	KVM: arm64: Invoke FPSIMD context switch trap from C	2018-05-25 12:28:31 +01:00
fpsimd.S	arm64: KVM: Implement fpsimd save/restore	2015-12-14 11:30:41 +00:00
hyp-entry.S	Small update for KVM.	2018-06-12 11:34:04 -07:00
Makefile	arm64: Add support for STACKLEAK gcc plugin	2018-07-26 11:36:34 +01:00
s2-setup.c	KVM: arm64: Stop save/restoring host tpidr_el1 on VHE	2018-01-13 10:44:40 +00:00
switch.c	arm64: KVM: Only force FPEXC32_EL2.EN if trapping FPSIMD	2018-09-07 15:05:50 +02:00
sysreg-sr.c	arm64: KVM: Cleanup tpidr_el2 init on non-VHE	2018-07-21 16:02:17 +01:00
tlb.c	KVM: arm/arm64: Detangle kvm_mmu.h from kvm_hyp.h	2018-01-08 15:20:43 +01:00
vgic-v2-cpuif-proxy.c	kvm/arm: use PSR_AA32 definitions	2018-07-05 17:24:15 +01:00