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| author |  Raghavendra Rao Ananta <rananta@google.com>
| 2023-08-11 04:51:23 +0000 |
|---|---|---|
| committer |  Marc Zyngier <maz@kernel.org>
| 2023-08-17 09:40:35 +0100 |
| commit | 117940aa6e5f8308f1529e1313660980f1dae771 (patch) | |
| tree | bb7f5cc9a6a18a20a26729367082b72751bd843c /arch/arm64/include/asm/kvm_pgtable.h | |
| parent | KVM: arm64: Implement __kvm_tlb_flush_vmid_range() (diff) | |
| download | linux-117940aa6e5f8308f1529e1313660980f1dae771.tar.gz linux-117940aa6e5f8308f1529e1313660980f1dae771.tar.bz2 linux-117940aa6e5f8308f1529e1313660980f1dae771.zip | |
KVM: arm64: Define kvm_tlb_flush_vmid_range()
Implement the helper kvm_tlb_flush_vmid_range() that acts
as a wrapper for range-based TLB invalidations. For the
given VMID, use the range-based TLBI instructions to do
the job or fallback to invalidating all the TLB entries.
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230811045127.3308641-11-rananta@google.com
Diffstat (limited to 'arch/arm64/include/asm/kvm_pgtable.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_pgtable.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h index 929d355eae0a..d3e354bb8351 100644 --- a/arch/arm64/include/asm/kvm_pgtable.h +++ b/arch/arm64/include/asm/kvm_pgtable.h @@ -746,4 +746,14 @@ enum kvm_pgtable_prot kvm_pgtable_stage2_pte_prot(kvm_pte_t pte); * kvm_pgtable_prot format. */ enum kvm_pgtable_prot kvm_pgtable_hyp_pte_prot(kvm_pte_t pte); + +/** + * kvm_tlb_flush_vmid_range() - Invalidate/flush a range of TLB entries + * + * @mmu: Stage-2 KVM MMU struct + * @addr: The base Intermediate physical address from which to invalidate + * @size: Size of the range from the base to invalidate + */ +void kvm_tlb_flush_vmid_range(struct kvm_s2_mmu *mmu, + phys_addr_t addr, size_t size); #endif /* __ARM64_KVM_PGTABLE_H__ */ |