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Searched refs:writable (Results 1 – 25 of 180) sorted by relevance

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/linux-6.15/include/trace/events/
H A Dhuge_memory.h58 TP_PROTO(struct mm_struct *mm, struct page *page, bool writable,
61 TP_ARGS(mm, page, writable, referenced, none_or_zero, status, unmapped),
66 __field(bool, writable)
76 __entry->writable = writable;
86 __entry->writable,
120 int referenced, bool writable, int status),
122 TP_ARGS(page, none_or_zero, referenced, writable, status),
128 __field(bool, writable)
136 __entry->writable = writable;
144 __entry->writable,
/linux-6.15/Documentation/mm/
H A Darch_pgtable_helpers.rst27 | pte_write | Tests a writable PTE |
47 | pte_mkwrite | Creates a writable PTE of the type specified by |
50 | pte_mkwrite_novma | Creates a writable PTE, of the conventional type |
51 | | of writable. |
101 | pmd_write | Tests a writable PMD |
121 | pmd_mkwrite | Creates a writable PMD of the type specified by |
124 | pmd_mkwrite_novma | Creates a writable PMD, of the conventional type |
125 | | of writable. |
178 | pud_write | Tests a writable PUD |
190 | pud_mkwrite | Creates a writable PUD |
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/linux-6.15/drivers/infiniband/hw/usnic/
H A Dusnic_uiom.c134 if (writable) in usnic_uiom_get_pages()
216 int writable = 0; in __usnic_uiom_reg_release() local
230 writable = 1; in __usnic_uiom_reg_release()
235 usnic_uiom_put_pages(&uiomr->chunk_list, dirty & writable); in __usnic_uiom_reg_release()
254 flags |= (uiomr->writable) ? IOMMU_WRITE : 0; in usnic_uiom_map_sorted_intervals()
331 int writable, int dmasync) in usnic_uiom_reg_get() argument
346 writable = 1; in usnic_uiom_reg_get()
361 uiomr->writable = writable; in usnic_uiom_reg_get()
364 err = usnic_uiom_get_pages(addr, size, writable, dmasync, in usnic_uiom_reg_get()
374 (writable) ? IOMMU_WRITE : 0, in usnic_uiom_reg_get()
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/linux-6.15/tools/testing/selftests/bpf/progs/
H A Dtest_module_attach.c36 struct bpf_testmod_test_writable_ctx *writable) in BPF_PROG() argument
38 raw_tp_writable_bare_in_val = writable->val; in BPF_PROG()
39 writable->early_ret = raw_tp_writable_bare_early_ret; in BPF_PROG()
40 writable->val = raw_tp_writable_bare_out_val; in BPF_PROG()
/linux-6.15/arch/powerpc/kvm/
H A De500_mmu_host.c48 static inline u32 e500_shadow_mas3_attrib(u32 mas3, bool writable, int usermode) in e500_shadow_mas3_attrib() argument
53 if (!writable) in e500_shadow_mas3_attrib()
251 bool writable) in kvmppc_e500_ref_setup() argument
255 if (writable) in kvmppc_e500_ref_setup()
312 bool writable = !!(ref->flags & E500_TLB_WRITABLE); in kvmppc_e500_setup_stlbe() local
320 e500_shadow_mas3_attrib(gtlbe->mas7_3, writable, pr); in kvmppc_e500_setup_stlbe()
341 bool writable = false; in kvmppc_e500_shadow_map() local
358 pfn = __kvm_faultin_pfn(slot, gfn, FOLL_WRITE, &writable, &page); in kvmppc_e500_shadow_map()
458 kvmppc_e500_ref_setup(ref, gtlbe, pfn, wimg, writable); in kvmppc_e500_shadow_map()
461 writable = tlbe_is_writable(stlbe); in kvmppc_e500_shadow_map()
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H A Dbook3s_64_mmu_host.c85 bool writable; in kvmppc_mmu_map_page() local
98 pfn = kvmppc_gpa_to_pfn(vcpu, orig_pte->raddr, iswrite, &writable, &page); in kvmppc_mmu_map_page()
125 if (!orig_pte->may_write || !writable) in kvmppc_mmu_map_page()
205 orig_pte->may_write && writable); in kvmppc_mmu_map_page()
H A Dbook3s_32_mmu_host.c144 bool writable; in kvmppc_mmu_map_page() local
147 hpaddr = kvmppc_gpa_to_pfn(vcpu, orig_pte->raddr, iswrite, &writable, &page); in kvmppc_mmu_map_page()
197 if (orig_pte->may_write && writable) { in kvmppc_mmu_map_page()
/linux-6.15/security/loadpin/
H A Dloadpin.c83 static void report_writable(struct super_block *mnt_sb, bool writable) in report_writable() argument
89 writable ? "writable" : "read-only"); in report_writable()
93 if (!writable) in report_writable()
103 bool writable = true; in sb_is_writable() local
106 writable = !bdev_read_only(mnt_sb->s_bdev); in sb_is_writable()
108 return writable; in sb_is_writable()
/linux-6.15/arch/riscv/kvm/
H A Dmmu.c348 bool writable, bool in_atomic) in kvm_riscv_gstage_ioremap() argument
365 if (!writable) in kvm_riscv_gstage_ioremap()
454 bool writable; in kvm_arch_prepare_memory_region() local
473 writable = !(new->flags & KVM_MEM_READONLY); in kvm_arch_prepare_memory_region()
500 if (writable && !(vma->vm_flags & VM_WRITE)) { in kvm_arch_prepare_memory_region()
524 writable, false); in kvm_arch_prepare_memory_region()
595 bool writable; in kvm_riscv_gstage_map() local
651 hfn = kvm_faultin_pfn(vcpu, gfn, is_write, &writable, &page); in kvm_riscv_gstage_map()
665 writable = false; in kvm_riscv_gstage_map()
672 if (writable) { in kvm_riscv_gstage_map()
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H A Dvcpu_sbi_sta.c89 bool writable; in kvm_sbi_sta_steal_time_set_shmem() local
114 hva = kvm_vcpu_gfn_to_hva_prot(vcpu, shmem >> PAGE_SHIFT, &writable); in kvm_sbi_sta_steal_time_set_shmem()
115 if (kvm_is_error_hva(hva) || !writable) in kvm_sbi_sta_steal_time_set_shmem()
H A Dvcpu_exit.c18 bool writable; in gstage_page_fault() local
25 hva = gfn_to_hva_memslot_prot(memslot, gfn, &writable); in gstage_page_fault()
28 (trap->scause == EXC_STORE_GUEST_PAGE_FAULT && !writable)) { in gstage_page_fault()
/linux-6.15/drivers/crypto/ccp/
H A Dsev-dev.c1396 if (!writable) in sev_ioctl_do_reset()
1446 if (!writable) in sev_ioctl_do_pek_pdh_gen()
1467 if (!writable) in sev_ioctl_do_pek_csr()
1732 if (!writable) in sev_ioctl_do_pek_import()
1887 if (!writable) in sev_ioctl_do_pdh_export()
2036 if (!writable) in sev_ioctl_do_snp_set_config()
2055 if (!writable) in sev_ioctl_do_snp_vlek_load()
2083 bool writable = file->f_mode & FMODE_WRITE; in sev_ioctl() local
2102 ret = sev_ioctl_do_reset(&input, writable); in sev_ioctl()
2114 ret = sev_ioctl_do_pek_csr(&input, writable); in sev_ioctl()
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/linux-6.15/drivers/mfd/
H A Dwm8350-regmap.c19 u16 writable; /* Mask of writable bits */ member
298 return wm8350_reg_io_map[reg].writable; in wm8350_writeable()
/linux-6.15/Documentation/virt/kvm/
H A Dlocking.rst78 What we use to avoid all the races is the Host-writable bit and MMU-writable bit
81 - Host-writable means the gfn is writable in the host kernel page tables and in
83 - MMU-writable means the gfn is writable in the guest's mmu and it is not
143 - The pfn is writable and therefore it cannot be shared between different gfns
155 writable between reading spte and updating spte. Like below case:
204 If the spte is updated from writable to read-only, we should flush all TLBs,
206 writable spte might be cached on a CPU's TLB.
208 As mentioned before, the spte can be updated to writable out of mmu-lock on
/linux-6.15/drivers/infiniband/hw/hfi1/
H A Duser_pages.c81 bool writable, struct page **pages) in hfi1_acquire_user_pages() argument
84 unsigned int gup_flags = FOLL_LONGTERM | (writable ? FOLL_WRITE : 0); in hfi1_acquire_user_pages()
/linux-6.15/drivers/iommu/iommufd/
H A Dio_pagetable.h212 bool writable:1; member
223 unsigned long length, bool writable);
225 unsigned long length, bool writable);
/linux-6.15/Documentation/devicetree/bindings/nvmem/
H A Dqcom,qfprom.yaml62 # needs to be provided. If the QFPROM is writable then all 4 regions
73 # Clock must be provided if QFPROM is writable from the OS image.
79 # Supply reference must be provided if QFPROM is writable from the OS image.
/linux-6.15/drivers/virt/acrn/
H A Dmm.c180 bool writable; in acrn_vm_ram_map() local
200 writable = args.writable; in acrn_vm_ram_map()
204 if (!writable && in acrn_vm_ram_map()
/linux-6.15/fs/fuse/
H A Ddax.c56 bool writable; member
183 struct fuse_dax_mapping *dmap, bool writable, in fuse_setup_one_mapping() argument
203 if (writable) in fuse_setup_one_mapping()
213 dmap->writable = writable; in fuse_setup_one_mapping()
441 bool writable = flags & IOMAP_WRITE; in fuse_setup_new_dax_mapping() local
489 writable, false); in fuse_setup_new_dax_mapping()
543 if (dmap->writable) { in fuse_upgrade_dax_mapping()
569 bool writable = flags & IOMAP_WRITE; in fuse_iomap_begin() local
593 if (writable && !dmap->writable) { in fuse_iomap_begin()
/linux-6.15/drivers/infiniband/core/
H A Dumem.c50 bool make_dirty = umem->writable && dirty; in __ib_umem_release()
197 umem->writable = ib_access_writable(access); in ib_umem_get()
224 if (umem->writable) in ib_umem_get()
H A Dumem_odp.c133 umem->writable = ib_access_writable(access); in ib_umem_odp_alloc_implicit()
182 umem->writable = root->umem.writable; in ib_umem_odp_alloc_child()
242 umem_odp->umem.writable = ib_access_writable(access); in ib_umem_odp_get()
/linux-6.15/arch/arm/
H A DKconfig-nommu50 vectors to be mapped to writable memory, say 'n' here.
54 the writable versions located at DRAM_BASE.
/linux-6.15/arch/arm64/kvm/
H A Dmmu.c1145 phys_addr_t pa, unsigned long size, bool writable) in kvm_phys_addr_ioremap() argument
1154 (writable ? KVM_PGTABLE_PROT_W : 0); in kvm_phys_addr_ioremap()
1475 bool write_fault, writable, force_pte = false; in user_mem_abort() local
1633 &writable, &page); in user_mem_abort()
1658 writable = false; in user_mem_abort()
1676 writable &= kvm_s2_trans_writable(nested); in user_mem_abort()
1718 if (writable) in user_mem_abort()
1753 kvm_release_faultin_page(kvm, page, !!ret, writable); in user_mem_abort()
1757 if (writable && !ret) in user_mem_abort()
1796 bool is_iabt, write_fault, writable; in kvm_handle_guest_abort() local
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/linux-6.15/Documentation/admin-guide/mm/
H A Dsoft-dirty.rst22 Internally, to do this tracking, the writable bit is cleared from PTEs
30 the kernel does is finds this fact out and puts both writable and soft-dirty
/linux-6.15/Documentation/security/
H A Dself-protection.rst37 APIs hard to use incorrectly, minimizing the areas of writable kernel
43 When all of kernel memory is writable, it becomes trivial for attacks
47 Executable code and read-only data must not be writable
50 Any areas of the kernel with executable memory must not be writable.
56 made writable during the update, and then returned to the original
61 writable, data is not executable, and read-only data is neither writable
70 Function pointers and sensitive variables must not be writable

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