From: Mark Rutland <mark.rutland@xxxxxxx>
Now that we have a __tlbi() helper, make use of this in the arm64 KVM hyp
code to get rid of asm() boilerplate. At the same time, we simplify
__tlb_flush_vm_context by using __flush_icache_all(), as this has the
appropriate instruction cache maintenance and barrier.
Signed-off-by: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
[ rename tlbi -> __tlbi, convert additional sites, update commit log ]
Signed-off-by: Punit Agrawal <punit.agrawal@xxxxxxx>
Acked-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
---
arch/arm64/kvm/hyp/tlb.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/kvm/hyp/tlb.c b/arch/arm64/kvm/hyp/tlb.c
index 88e2f2b938f0..b2cfbedea582 100644
--- a/arch/arm64/kvm/hyp/tlb.c
+++ b/arch/arm64/kvm/hyp/tlb.c
@@ -16,6 +16,7 @@
*/
#include <asm/kvm_hyp.h>
+#include <asm/tlbflush.h>
void __hyp_text __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
{
@@ -32,7 +33,7 @@ void __hyp_text __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
* whole of Stage-1. Weep...
*/
ipa >>= 12;
- asm volatile("tlbi ipas2e1is, %0" : : "r" (ipa));
+ __tlbi(ipas2e1is, ipa);
/*
* We have to ensure completion of the invalidation at Stage-2,
@@ -41,7 +42,7 @@ void __hyp_text __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
* the Stage-1 invalidation happened first.
*/
dsb(ish);
- asm volatile("tlbi vmalle1is" : : );
+ __tlbi(vmalle1is);
dsb(ish);
isb();
@@ -57,7 +58,7 @@ void __hyp_text __kvm_tlb_flush_vmid(struct kvm *kvm)
write_sysreg(kvm->arch.vttbr, vttbr_el2);
isb();
- asm volatile("tlbi vmalls12e1is" : : );
+ __tlbi(vmalls12e1is);
dsb(ish);
isb();
@@ -82,7 +83,6 @@ void __hyp_text __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu)
void __hyp_text __kvm_flush_vm_context(void)
{
dsb(ishst);
- asm volatile("tlbi alle1is \n"
- "ic ialluis ": : );
- dsb(ish);
+ __tlbi(alle1is);
+ __flush_icache_all(); /* contains a dsb(ish) */
}
--
2.11.0
