aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm64/include/asm/kvm_mmu.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm64/include/asm/kvm_mmu.h')
-rw-r--r--arch/arm64/include/asm/kvm_mmu.h34
1 files changed, 28 insertions, 6 deletions
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 14a74f136272..adcf49547301 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -243,24 +243,46 @@ static inline bool vcpu_has_cache_enabled(struct kvm_vcpu *vcpu)
243 return (vcpu_sys_reg(vcpu, SCTLR_EL1) & 0b101) == 0b101; 243 return (vcpu_sys_reg(vcpu, SCTLR_EL1) & 0b101) == 0b101;
244} 244}
245 245
246static inline void coherent_cache_guest_page(struct kvm_vcpu *vcpu, hva_t hva, 246static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu, pfn_t pfn,
247 unsigned long size, 247 unsigned long size,
248 bool ipa_uncached) 248 bool ipa_uncached)
249{ 249{
250 void *va = page_address(pfn_to_page(pfn));
251
250 if (!vcpu_has_cache_enabled(vcpu) || ipa_uncached) 252 if (!vcpu_has_cache_enabled(vcpu) || ipa_uncached)
251 kvm_flush_dcache_to_poc((void *)hva, size); 253 kvm_flush_dcache_to_poc(va, size);
252 254
253 if (!icache_is_aliasing()) { /* PIPT */ 255 if (!icache_is_aliasing()) { /* PIPT */
254 flush_icache_range(hva, hva + size); 256 flush_icache_range((unsigned long)va,
257 (unsigned long)va + size);
255 } else if (!icache_is_aivivt()) { /* non ASID-tagged VIVT */ 258 } else if (!icache_is_aivivt()) { /* non ASID-tagged VIVT */
256 /* any kind of VIPT cache */ 259 /* any kind of VIPT cache */
257 __flush_icache_all(); 260 __flush_icache_all();
258 } 261 }
259} 262}
260 263
264static inline void __kvm_flush_dcache_pte(pte_t pte)
265{
266 struct page *page = pte_page(pte);
267 kvm_flush_dcache_to_poc(page_address(page), PAGE_SIZE);
268}
269
270static inline void __kvm_flush_dcache_pmd(pmd_t pmd)
271{
272 struct page *page = pmd_page(pmd);
273 kvm_flush_dcache_to_poc(page_address(page), PMD_SIZE);
274}
275
276static inline void __kvm_flush_dcache_pud(pud_t pud)
277{
278 struct page *page = pud_page(pud);
279 kvm_flush_dcache_to_poc(page_address(page), PUD_SIZE);
280}
281
261#define kvm_virt_to_phys(x) __virt_to_phys((unsigned long)(x)) 282#define kvm_virt_to_phys(x) __virt_to_phys((unsigned long)(x))
262 283
263void stage2_flush_vm(struct kvm *kvm); 284void kvm_set_way_flush(struct kvm_vcpu *vcpu);
285void kvm_toggle_cache(struct kvm_vcpu *vcpu, bool was_enabled);
264 286
265#endif /* __ASSEMBLY__ */ 287#endif /* __ASSEMBLY__ */
266#endif /* __ARM64_KVM_MMU_H__ */ 288#endif /* __ARM64_KVM_MMU_H__ */