2021-07-14 00:44:10 +02:00
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/*
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* Guest MMU caches flushing on KVM host
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*
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* Copyright 2016 Salavat S. Gilyazov (atic@mcst.ru)
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*/
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#ifndef _E2K_KVM_TLBFLUSH_H
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#define _E2K_KVM_TLBFLUSH_H
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#include <linux/mm.h>
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2021-08-26 00:47:50 +02:00
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#include <linux/kvm_host.h>
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2021-07-14 00:44:10 +02:00
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2021-08-26 00:47:50 +02:00
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#include <asm/kvm/hypercall.h>
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2021-07-14 00:44:10 +02:00
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/*
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* Guest VM support on host
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* TLB flushing:
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*
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* - flush_tlb_mm(mm) flushes the specified mm context TLB's
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* - flush_tlb_page(vma, vmaddr) flushes one page
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* - flush_tlb_range(mm, start, end) flushes a range of pages
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*/
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2021-08-26 00:47:50 +02:00
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extern void mmu_pv_flush_tlb_range(struct kvm_vcpu *vcpu, gmm_struct_t *gmm,
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const e2k_addr_t start, const e2k_addr_t end);
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extern void mmu_pv_flush_cpu_root_pt_mm(struct kvm_vcpu *vcpu, gmm_struct_t *gmm);
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extern void mmu_pv_flush_cpu_root_pt(struct kvm_vcpu *vcpu);
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extern long kvm_pv_sync_and_flush_tlb(struct kvm_vcpu *vcpu,
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mmu_spt_flush_t __user *flush_user);
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extern long kvm_pv_sync_addr_range(struct kvm_vcpu *vcpu,
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gva_t start_gva, gva_t end_gva);
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2021-08-26 00:47:50 +02:00
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extern void host_flush_shadow_pt_tlb_range(struct kvm_vcpu *vcpu,
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gva_t start, gva_t end, pgprot_t spte, int level);
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extern void host_flush_shadow_pt_level_tlb(struct kvm *kvm, gmm_struct_t *gmm,
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gva_t gva, int level, pgprot_t new_spte, pgprot_t old_spte);
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2021-07-14 00:44:10 +02:00
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2021-11-14 16:13:25 +01:00
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/*
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* Shadow PT TLB flushing (same as flush_tlb_*() but for gmm)
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* Real switching to a new gmm context (PID) will be a little later
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* while return from hypercall to the guest mode (host_guest_enter()),
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* and it is then that the PID will become active, but now it is still passive.
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*/
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2022-01-17 12:36:48 +01:00
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extern void host_local_flush_tlb_range_and_pgtables(gmm_struct_t *gmm,
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unsigned long start, unsigned long end);
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extern void host_flush_tlb_mm(gmm_struct_t *gmm);
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extern void host_flush_tlb_page(gmm_struct_t *gmm, unsigned long addr);
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extern void host_flush_tlb_range(gmm_struct_t *gmm,
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unsigned long start, unsigned long end);
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extern void host_flush_tlb_kernel_range(gmm_struct_t *gmm,
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unsigned long start, unsigned long end);
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extern void host_flush_tlb_range_and_pgtables(gmm_struct_t *gmm,
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unsigned long start, unsigned long end);
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extern void host_flush_pmd_tlb_range(gmm_struct_t *gmm,
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unsigned long start, unsigned long end);
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2021-07-14 00:44:10 +02:00
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#endif /* _E2K_KVM_TLBFLUSH_H */
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