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| author |   Oliver Upton <oliver.upton@linux.dev> | 2023-10-18 23:32:08 +0000 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2023-10-20 17:52:00 +0000 |
| commit | 38ce26bf26666779565c2770e7ef36c02e0212d7 (patch) | |
| tree | 2d51352545f086153c10cf29f281210a94747a02 | |
| parent | Linux 6.6-rc3 (diff) | |
| download | wireguard-linux-38ce26bf26666779565c2770e7ef36c02e0212d7.tar.xz wireguard-linux-38ce26bf26666779565c2770e7ef36c02e0212d7.zip | |
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: Oliver Upton <oliver.upton@linux.dev>
| -rw-r--r-- | arch/arm64/kvm/hyp/vhe/tlb.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm64/kvm/hyp/vhe/tlb.c b/arch/arm64/kvm/hyp/vhe/tlb.c index 46bd43f61d76..f3f2e142e4f4 100644 --- a/arch/arm64/kvm/hyp/vhe/tlb.c +++ b/arch/arm64/kvm/hyp/vhe/tlb.c @@ -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(); |