| Message ID | 20240814123429.20457-2-will@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: arm64: Fix a couple of pKVM/nVHE TLB invalidation bugs | expand |
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-init.S b/arch/arm64/kvm/hyp/nvhe/hyp-init.S index 07120b37da35..401af1835be6 100644 --- a/arch/arm64/kvm/hyp/nvhe/hyp-init.S +++ b/arch/arm64/kvm/hyp/nvhe/hyp-init.S @@ -130,7 +130,7 @@ alternative_else_nop_endif /* Invalidate the stale TLBs from Bootloader */ tlbi alle2 - tlbi vmalls12e1 + tlbi alle1 dsb sy mov_q x0, INIT_SCTLR_EL2_MMU_ON
When initialising the nVHE hypervisor, we invalidate potentially stale TLB entries for the EL1&0 regime using a 'vmalls12e1' invalidation. However, this invalidation operation applies only to the active VMID and therefore we could proceed with stale TLB entries for other VMIDs. Replace the operation with an 'alle1' which applies to all entries for the EL1&0 regime, regardless of the VMID. Cc: Marc Zyngier <maz@kernel.org> Cc: Oliver Upton <oliver.upton@linux.dev> Fixes: 1025c8c0c6ac ("KVM: arm64: Wrap the host with a stage 2") Signed-off-by: Will Deacon <will@kernel.org> --- arch/arm64/kvm/hyp/nvhe/hyp-init.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)