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[02/12] KVM: arm64: Remove leftover kern_hyp_va() in nVHE TLB invalidation

Message ID 20201030164017.244287-3-maz@kernel.org (mailing list archive)
State New, archived
Headers show
Series None | expand

Commit Message

Marc Zyngier Oct. 30, 2020, 4:40 p.m. UTC 
The new calling convention says that pointers coming from the SMCCC
interface are turned into their HYP version in the host HVC handler.
However, there is still a stray kern_hyp_va() in the TLB invalidation
code, which could result in a corrupted pointer.

Drop the spurious conversion.

Fixes: a071261d9318 ("KVM: arm64: nVHE: Fix pointers during SMCCC convertion")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201026095116.72051-3-maz@kernel.org
---
 arch/arm64/kvm/hyp/nvhe/tlb.c | 1 -
 1 file changed, 1 deletion(-)
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Patch

diff --git a/arch/arm64/kvm/hyp/nvhe/tlb.c b/arch/arm64/kvm/hyp/nvhe/tlb.c
index 544bca3072b7..ad212d8fa417 100644
--- a/arch/arm64/kvm/hyp/nvhe/tlb.c
+++ b/arch/arm64/kvm/hyp/nvhe/tlb.c
@@ -121,7 +121,6 @@  void __kvm_tlb_flush_local_vmid(struct kvm_s2_mmu *mmu)
 	struct tlb_inv_context cxt;
 
 	/* Switch to requested VMID */
-	mmu = kern_hyp_va(mmu);
 	__tlb_switch_to_guest(mmu, &cxt);
 
 	__tlbi(vmalle1);