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Commit 9836c6b9 authored by Mario Smarduch's avatar Mario Smarduch Committed by Christoffer Dall
Browse files

KVM: arm64: Add HYP interface to flush VM Stage 1/2 TLB entries 



This patch adds support for arm64 hyp interface to flush all TLBs associated
with VMID.

Reviewed-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: default avatarMario Smarduch <m.smarduch@samsung.com>
parent 8199ed0e

arch/arm64/kvm/hyp.S

+22 −0
Original line number Diff line number Diff line
@@ -1030,6 +1030,28 @@ ENTRY(__kvm_tlb_flush_vmid_ipa) 
	ret

ENDPROC(__kvm_tlb_flush_vmid_ipa)



/**

 * void __kvm_tlb_flush_vmid(struct kvm *kvm) - Flush per-VMID TLBs

 * @struct kvm *kvm - pointer to kvm structure

 *

 * Invalidates all Stage 1 and 2 TLB entries for current VMID.

 */

ENTRY(__kvm_tlb_flush_vmid)

	dsb     ishst



	kern_hyp_va     x0

	ldr     x2, [x0, #KVM_VTTBR]

	msr     vttbr_el2, x2

	isb



	tlbi    vmalls12e1is

	dsb     ish

	isb



	msr     vttbr_el2, xzr

	ret

ENDPROC(__kvm_tlb_flush_vmid)



ENTRY(__kvm_flush_vm_context)

	dsb	ishst

	tlbi	alle1is