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/linux/mm/
H A Dpage_counter.c24 unsigned long protected, old_protected; in propagate_protected_usage() local
30 protected = min(usage, READ_ONCE(c->min)); in propagate_protected_usage()
32 if (protected != old_protected) { in propagate_protected_usage()
33 old_protected = atomic_long_xchg(&c->min_usage, protected); in propagate_protected_usage()
34 delta = protected - old_protected; in propagate_protected_usage()
39 protected = min(usage, READ_ONCE(c->low)); in propagate_protected_usage()
41 if (protected != old_protected) { in propagate_protected_usage()
42 old_protected = atomic_long_xchg(&c->low_usage, protected); in propagate_protected_usage()
43 delta = protected - old_protected; in propagate_protected_usage()
344 unsigned long protected; in effective_protection() local
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/linux/Documentation/mm/
H A Darch_pgtable_helpers.rst51 | pte_wrprotect | Creates a write protected PTE |
73 | ptep_set_wrprotect | Converts into a write protected PTE |
121 | pmd_wrprotect | Creates a write protected PMD |
146 | pmdp_set_wrprotect | Converts into a write protected PMD |
182 | pud_wrprotect | Creates a write protected PUD |
197 | pudp_set_wrprotect | Converts into a write protected PUD |
219 | huge_pte_wrprotect | Creates a write protected HugeTLB |
223 | huge_ptep_set_wrprotect | Converts into a write protected HugeTLB |
/linux/Documentation/pcmcia/
H A Dlocking.rst62 protected by pcmcia_socket_list_rwsem;
67 The resource_ops and their data are protected by ops_mutex.
69 The "main" struct pcmcia_socket is protected as follows (read-only fields
112 The "main" struct pcmcia_device is protected as follows (read-only fields
/linux/drivers/crypto/
H A DKconfig79 tristate "Kernel API for protected key handling"
83 for creation and handling of protected keys. Other parts of the
86 The protected key support is distributed into:
90 implementations using protected key.
92 loaded when pckmo support (that is generation of protected keys
100 protected execution environment.
103 API for protected key handling.
110 This is the CCA support handler for deriving protected keys
112 way to make protected keys from clear key values.
118 this option unless you are sure you never need to derive protected
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/linux/Documentation/virt/kvm/s390/
H A Ds390-pv-boot.rst17 KVM to decrypt the protected virtual machine.
19 Based on this data, KVM will make the protected virtual machine known
67 When running in protected virtualization mode, some subcodes will result in
76 Re-IPL into a protected mode is only possible via a detour into non
77 protected mode.
H A Ds390-pv-dump.rst11 it. This is especially true when a protected VM runs into trouble as
15 However when dumping a protected VM we need to maintain its
/linux/drivers/pinctrl/intel/
H A Dpinctrl-tangier.h39 bool protected; member
55 .protected = true, \
/linux/Documentation/virt/kvm/arm/
H A Dhypercalls.rst51 Query the memory protection parameters for a pKVM protected virtual machine.
54 | Presence: | Optional; pKVM protected guests only. |
78 | Presence: | Optional; pKVM protected guests only. |
103 | Presence: | Optional; pKVM protected guests only. |
129 | Presence: | Optional; pKVM protected guests only. |
/linux/Documentation/arch/arm64/
H A Darm-cca.rst24 is split into two. The lower half is protected - any memory that is
35 request that areas of the protected address space are transitioned
48 * All protected RAM described to Linux (by DT or ACPI) must be marked
61 devices. It will transition some protected memory to RIPAS EMPTY and
64 VMM will remove the physical pages from the protected mapping and
/linux/tools/testing/selftests/cgroup/
H A Dmemcg_protection.m51 protected = min(n, c); % start with nominal variable
52 e = protected * min(1, E / siblings); % normalize overcommit
58 overuse = max(0, c - protected);
/linux/arch/x86/realmode/rm/
H A Dtrampoline_32.S53 movw $1, %dx # protected mode (PE) bit
54 lmsw %dx # into protected mode
/linux/scripts/kconfig/
H A Dqconf.h57 protected:
202 protected:
225 protected:
260 protected:
/linux/arch/powerpc/boot/dts/
H A Dmpc5121ads.dts39 protected@0 {
40 label = "protected";
41 reg = <0x00000000 0x00040000>; // first sector is protected
/linux/drivers/mtd/spi-nor/
H A DKconfig47 power-up or a reset the flash is software write protected by
65 protected or will be automatically software write protected after
/linux/Documentation/filesystems/
H A Dfiles.rst10 Up until 2.6.12, the file descriptor table has been protected
12 ->file_lock protected accesses to all the file related fields
18 The files (struct file) themselves are protected using
58 2. Reading of the fdtable as described above must be protected
/linux/drivers/clk/sunxi/
H A Dclk-simple-gates.c19 const int protected[], in sunxi_simple_gates_setup() argument
68 if (protected[j] == index) in sunxi_simple_gates_setup()
/linux/Documentation/hwmon/
H A Dmax20730.rst67 write protected; read-write otherwise.
78 degrees C. Read-only if the chip is write protected;
/linux/Documentation/locking/
H A Dpreempt-locking.rst40 RULE #2: CPU state must be protected.
44 Under preemption, the state of the CPU must be protected. This is arch-
140 is done. They may also be called within a spin-lock protected region, however,
143 are also protected by preemption locks and so may use the versions which do
H A Dseqlock.rst35 This mechanism cannot be used if the protected data contains pointers,
107 that it is properly protected.
151 between two copies of protected data. This allows the sequence counter
154 Use seqcount_latch_t when the write side sections cannot be protected
/linux/arch/arm64/kvm/
H A DKconfig63 If using protected nVHE mode, but cannot afford the associated
67 If unsure, or not using protected nVHE (pKVM), say N.
/linux/arch/powerpc/sysdev/
H A Dmpic.c1013 if (mpic->protected && test_bit(hw, mpic->protected)) { in mpic_host_map()
1329 mpic->protected = bitmap_zalloc(intvec_top + 1, GFP_KERNEL); in mpic_alloc()
1330 BUG_ON(mpic->protected == NULL); in mpic_alloc()
1334 __set_bit(psrc[i], mpic->protected); in mpic_alloc()
1615 if (mpic->protected && test_bit(i, mpic->protected)) in mpic_init()
1782 if (unlikely(mpic->protected && test_bit(src, mpic->protected))) { in _mpic_get_one_irq()
1821 if (unlikely(mpic->protected && test_bit(src, mpic->protected))) { in mpic_get_coreint_irq()
/linux/Documentation/fb/
H A Dvesafb.rst12 graphics mode. Switching mode later on (in protected mode) is
114 The VESA BIOS provides protected mode interface for changing
129 ypan enable display panning using the VESA protected mode
155 pmipal Use the protected mode interface for palette changes.
/linux/drivers/virt/coco/pkvm-guest/
H A DKconfig2 bool "Arm pKVM protected guest driver"
/linux/arch/x86/kvm/
H A DKconfig84 bool "Enable support for KVM software-protected VMs"
89 Enable support for KVM software-protected VMs. Currently, software-
90 protected VMs are purely a development and testing vehicle for
92 software-protected VM will fail miserably.
/linux/tools/memory-model/litmus-tests/
H A DMP+onceassign+derefonce.litmus8 * pre-initialization garbage when it traverses an RCU-protected data

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