diff options
| author | Marc Zyngier <maz@kernel.org> | 2023-12-04 17:36:04 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-12-05 14:38:03 +0300 |
| commit | ced242ba9d7cb3571f6e0f165f643cb832d52148 (patch) | |
| tree | fa83217085430e682a04bccaa65ff83888cd62d9 /arch/arm64/kvm/hyp/vhe/tlb.c | |
| parent | 2cc14f52aeb78ce3f29677c2de1f06c0e91471ab (diff) | |
| download | linux-ced242ba9d7cb3571f6e0f165f643cb832d52148.tar.xz | |
KVM: arm64: Remove VPIPT I-cache handling
We have some special handling for VPIPT I-cache in critical parts
of the cache and TLB maintenance. Remove it.
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20231204143606.1806432-2-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kvm/hyp/vhe/tlb.c')
| -rw-r--r-- | arch/arm64/kvm/hyp/vhe/tlb.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/arch/arm64/kvm/hyp/vhe/tlb.c b/arch/arm64/kvm/hyp/vhe/tlb.c index b636b4111dbf..b32e2940df7d 100644 --- a/arch/arm64/kvm/hyp/vhe/tlb.c +++ b/arch/arm64/kvm/hyp/vhe/tlb.c @@ -216,18 +216,5 @@ void __kvm_flush_vm_context(void) { dsb(ishst); __tlbi(alle1is); - - /* - * VIPT and PIPT caches are not affected by VMID, so no maintenance - * is necessary across a VMID rollover. - * - * VPIPT caches constrain lookup and maintenance to the active VMID, - * so we need to invalidate lines with a stale VMID to avoid an ABA - * race after multiple rollovers. - * - */ - if (icache_is_vpipt()) - asm volatile("ic ialluis"); - dsb(ish); } |