Commit 38ce26bf authored by Oliver Upton's avatar Oliver Upton
Browse files

KVM: arm64: Don't zero VTTBR in __tlb_switch_to_host() 

HCR_EL2.TGE=0 is sufficient to disable stage-2 translation, so there's
no need to explicitly zero VTTBR_EL2.

Link: https://lore.kernel.org/r/20231018233212.2888027-2-oliver.upton@linux.dev


Signed-off-by: default avatarOliver Upton <oliver.upton@linux.dev>
parent 6465e260

arch/arm64/kvm/hyp/vhe/tlb.c

+0 −1
Original line number Diff line number Diff line
@@ -66,7 +66,6 @@ static void __tlb_switch_to_host(struct tlb_inv_context *cxt) 
	 * We're done with the TLB operation, let's restore the host's

	 * view of HCR_EL2.

	 */

	write_sysreg(0, vttbr_el2);

	write_sysreg(HCR_HOST_VHE_FLAGS, hcr_el2);

	isb();