diff options
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/kvm_emulate.h | 7 | ||||
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/arm64/include/asm/kvm_mmu.h | 81 | ||||
| -rw-r--r-- | arch/arm64/include/uapi/asm/kvm.h | 8 | ||||
| -rw-r--r-- | arch/arm64/kvm/guest.c | 1 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp.S | 1 | ||||
| -rw-r--r-- | arch/arm64/kvm/reset.c | 1 | ||||
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 6 | ||||
| -rw-r--r-- | arch/arm64/mm/hugetlbpage.c | 6 | ||||
| -rw-r--r-- | arch/arm64/net/bpf_jit_comp.c | 2 |
10 files changed, 53 insertions, 61 deletions
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 5674a55b5518..865a7e28ea2d 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -38,6 +38,13 @@ void kvm_inject_undefined(struct kvm_vcpu *vcpu); void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr); void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr); +static inline void vcpu_reset_hcr(struct kvm_vcpu *vcpu) +{ + vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS; + if (test_bit(KVM_ARM_VCPU_EL1_32BIT, vcpu->arch.features)) + vcpu->arch.hcr_el2 &= ~HCR_RW; +} + static inline unsigned long *vcpu_pc(const struct kvm_vcpu *vcpu) { return (unsigned long *)&vcpu_gp_regs(vcpu)->regs.pc; diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 2012c4ba8d67..dbd32127dbb6 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -200,6 +200,7 @@ struct kvm_vcpu *kvm_arm_get_running_vcpu(void); struct kvm_vcpu * __percpu *kvm_get_running_vcpus(void); u64 kvm_call_hyp(void *hypfn, ...); +void force_vm_exit(const cpumask_t *mask); int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run, int exception_index); diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index 0caf7a59f6a1..a205e957d5c4 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -83,6 +83,7 @@ int create_hyp_io_mappings(void *from, void *to, phys_addr_t); void free_boot_hyp_pgd(void); void free_hyp_pgds(void); +void stage2_unmap_vm(struct kvm *kvm); int kvm_alloc_stage2_pgd(struct kvm *kvm); void kvm_free_stage2_pgd(struct kvm *kvm); int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa, @@ -136,6 +137,8 @@ static inline void kvm_set_s2pmd_writable(pmd_t *pmd) #define PTRS_PER_S2_PGD (1 << PTRS_PER_S2_PGD_SHIFT) #define S2_PGD_ORDER get_order(PTRS_PER_S2_PGD * sizeof(pgd_t)) +#define kvm_pgd_index(addr) (((addr) >> PGDIR_SHIFT) & (PTRS_PER_S2_PGD - 1)) + /* * If we are concatenating first level stage-2 page tables, we would have less * than or equal to 16 pointers in the fake PGD, because that's what the @@ -149,43 +152,6 @@ static inline void kvm_set_s2pmd_writable(pmd_t *pmd) #define KVM_PREALLOC_LEVEL (0) #endif -/** - * kvm_prealloc_hwpgd - allocate inital table for VTTBR - * @kvm: The KVM struct pointer for the VM. - * @pgd: The kernel pseudo pgd - * - * When the kernel uses more levels of page tables than the guest, we allocate - * a fake PGD and pre-populate it to point to the next-level page table, which - * will be the real initial page table pointed to by the VTTBR. - * - * When KVM_PREALLOC_LEVEL==2, we allocate a single page for the PMD and - * the kernel will use folded pud. When KVM_PREALLOC_LEVEL==1, we - * allocate 2 consecutive PUD pages. - */ -static inline int kvm_prealloc_hwpgd(struct kvm *kvm, pgd_t *pgd) -{ - unsigned int i; - unsigned long hwpgd; - - if (KVM_PREALLOC_LEVEL == 0) - return 0; - - hwpgd = __get_free_pages(GFP_KERNEL | __GFP_ZERO, PTRS_PER_S2_PGD_SHIFT); - if (!hwpgd) - return -ENOMEM; - - for (i = 0; i < PTRS_PER_S2_PGD; i++) { - if (KVM_PREALLOC_LEVEL == 1) - pgd_populate(NULL, pgd + i, - (pud_t *)hwpgd + i * PTRS_PER_PUD); - else if (KVM_PREALLOC_LEVEL == 2) - pud_populate(NULL, pud_offset(pgd, 0) + i, - (pmd_t *)hwpgd + i * PTRS_PER_PMD); - } - - return 0; -} - static inline void *kvm_get_hwpgd(struct kvm *kvm) { pgd_t *pgd = kvm->arch.pgd; @@ -202,12 +168,11 @@ static inline void *kvm_get_hwpgd(struct kvm *kvm) return pmd_offset(pud, 0); } -static inline void kvm_free_hwpgd(struct kvm *kvm) +static inline unsigned int kvm_get_hwpgd_size(void) { - if (KVM_PREALLOC_LEVEL > 0) { - unsigned long hwpgd = (unsigned long)kvm_get_hwpgd(kvm); - free_pages(hwpgd, PTRS_PER_S2_PGD_SHIFT); - } + if (KVM_PREALLOC_LEVEL > 0) + return PTRS_PER_S2_PGD * PAGE_SIZE; + return PTRS_PER_S2_PGD * sizeof(pgd_t); } static inline bool kvm_page_empty(void *ptr) @@ -242,20 +207,42 @@ static inline bool vcpu_has_cache_enabled(struct kvm_vcpu *vcpu) return (vcpu_sys_reg(vcpu, SCTLR_EL1) & 0b101) == 0b101; } -static inline void coherent_cache_guest_page(struct kvm_vcpu *vcpu, hva_t hva, - unsigned long size) +static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu, pfn_t pfn, + unsigned long size, + bool ipa_uncached) { - if (!vcpu_has_cache_enabled(vcpu)) - kvm_flush_dcache_to_poc((void *)hva, size); + void *va = page_address(pfn_to_page(pfn)); + + if (!vcpu_has_cache_enabled(vcpu) || ipa_uncached) + kvm_flush_dcache_to_poc(va, size); if (!icache_is_aliasing()) { /* PIPT */ - flush_icache_range(hva, hva + size); + flush_icache_range((unsigned long)va, + (unsigned long)va + size); } else if (!icache_is_aivivt()) { /* non ASID-tagged VIVT */ /* any kind of VIPT cache */ __flush_icache_all(); } } +static inline void __kvm_flush_dcache_pte(pte_t pte) +{ + struct page *page = pte_page(pte); + kvm_flush_dcache_to_poc(page_address(page), PAGE_SIZE); +} + +static inline void __kvm_flush_dcache_pmd(pmd_t pmd) +{ + struct page *page = pmd_page(pmd); + kvm_flush_dcache_to_poc(page_address(page), PMD_SIZE); +} + +static inline void __kvm_flush_dcache_pud(pud_t pud) +{ + struct page *page = pud_page(pud); + kvm_flush_dcache_to_poc(page_address(page), PUD_SIZE); +} + #define kvm_virt_to_phys(x) __virt_to_phys((unsigned long)(x)) void stage2_flush_vm(struct kvm *kvm); diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h index 8e38878c87c6..d9e9822efcee 100644 --- a/arch/arm64/include/uapi/asm/kvm.h +++ b/arch/arm64/include/uapi/asm/kvm.h @@ -179,8 +179,14 @@ struct kvm_arch_memory_slot { #define KVM_ARM_IRQ_CPU_IRQ 0 #define KVM_ARM_IRQ_CPU_FIQ 1 -/* Highest supported SPI, from VGIC_NR_IRQS */ +/* + * This used to hold the highest supported SPI, but it is now obsolete + * and only here to provide source code level compatibility with older + * userland. The highest SPI number can be set via KVM_DEV_ARM_VGIC_GRP_NR_IRQS. + */ +#ifndef __KERNEL__ #define KVM_ARM_IRQ_GIC_MAX 127 +#endif /* PSCI interface */ #define KVM_PSCI_FN_BASE 0x95c1ba5e diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 76794692c20b..84d5959ff874 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -38,7 +38,6 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) { - vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS; return 0; } diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S index b72aa9f9215c..a767f6a4ce54 100644 --- a/arch/arm64/kvm/hyp.S +++ b/arch/arm64/kvm/hyp.S @@ -1014,6 +1014,7 @@ ENTRY(__kvm_tlb_flush_vmid_ipa) * Instead, we invalidate Stage-2 for this IPA, and the * whole of Stage-1. Weep... */ + lsr x1, x1, #12 tlbi ipas2e1is, x1 /* * We have to ensure completion of the invalidation at Stage-2, diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c index 70a7816535cd..0b4326578985 100644 --- a/arch/arm64/kvm/reset.c +++ b/arch/arm64/kvm/reset.c @@ -90,7 +90,6 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu) if (!cpu_has_32bit_el1()) return -EINVAL; cpu_reset = &default_regs_reset32; - vcpu->arch.hcr_el2 &= ~HCR_RW; } else { cpu_reset = &default_regs_reset; } diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index df34a70caca1..6efbb52cb92e 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -67,8 +67,7 @@ static void *__alloc_from_pool(size_t size, struct page **ret_page, gfp_t flags) *ret_page = phys_to_page(phys); ptr = (void *)val; - if (flags & __GFP_ZERO) - memset(ptr, 0, size); + memset(ptr, 0, size); } return ptr; @@ -113,8 +112,7 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size, *dma_handle = phys_to_dma(dev, page_to_phys(page)); addr = page_address(page); - if (flags & __GFP_ZERO) - memset(addr, 0, size); + memset(addr, 0, size); return addr; } else { return swiotlb_alloc_coherent(dev, size, dma_handle, flags); diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index 023747bf4dd7..2de9d2e59d96 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -38,12 +38,6 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) } #endif -struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address, - int write) -{ - return ERR_PTR(-EINVAL); -} - int pmd_huge(pmd_t pmd) { return !(pmd_val(pmd) & PMD_TABLE_BIT); diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index edba042b2325..dc6a4842683a 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -487,7 +487,7 @@ emit_cond_jmp: return -EINVAL; } - imm64 = (u64)insn1.imm << 32 | imm; + imm64 = (u64)insn1.imm << 32 | (u32)imm; emit_a64_mov_i64(dst, imm64, ctx); return 1; |