2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2025-01-07 21:24:00 +08:00
linux-next/arch/arm64/kvm/hyp
Marc Zyngier 6892517629 arm64: KVM: VHE: Clear HCR_TGE when invalidating guest TLBs
When invalidating guest TLBs, special care must be taken to
actually shoot the guest TLBs and not the host ones if we're
running on a VHE system.  This is controlled by the HCR_EL2.TGE
bit, which we forget to clear before invalidating TLBs.

Address the issue by introducing two wrappers (__tlb_switch_to_guest
and __tlb_switch_to_host) that take care of both the VTTBR_EL2
and HCR_EL2.TGE switching.

Reported-by: Tomasz Nowicki <tnowicki@caviumnetworks.com>
Tested-by: Tomasz Nowicki <tnowicki@caviumnetworks.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-03-06 10:28:24 +00:00
..
debug-sr.c arm64: KVM: Save/restore the host SPE state when entering/leaving a VM 2017-02-02 18:33:01 +00:00
entry.S arm64: KVM: Handle async aborts delivered while at EL2 2016-09-08 12:53:00 +02:00
fpsimd.S arm64: KVM: Implement fpsimd save/restore 2015-12-14 11:30:41 +00:00
hyp-entry.S arm64: Support systems without FP/ASIMD 2016-11-16 18:05:10 +00:00
Makefile arm64: KVM: Move vgic-v3 save/restore to virt/kvm/arm/hyp 2016-09-22 13:21:46 +02:00
s2-setup.c kvm: arm64: Enable hardware updates of the Access Flag for Stage 2 page tables 2016-05-09 22:23:08 +02:00
switch.c arm64: KVM: Save/restore the host SPE state when entering/leaving a VM 2017-02-02 18:33:01 +00:00
sysreg-sr.c arm64: KVM: VHE: Context switch MDSCR_EL1 2016-07-23 18:07:12 +02:00
tlb.c arm64: KVM: VHE: Clear HCR_TGE when invalidating guest TLBs 2017-03-06 10:28:24 +00:00