Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/arch/x86/include/asm/invpcid.h
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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_X86_INVPCID #define _ASM_X86_INVPCID static inline void __invpcid(unsigned long pcid, unsigned long addr, unsigned long type) { struct { u64 d[2]; } desc = { { pcid, addr } }; /* * The memory clobber is because the whole point is to invalidate * stale TLB entries and, especially if we're flushing global * mappings, we don't want the compiler to reorder any subsequent * memory accesses before the TLB flush. * * The hex opcode is invpcid (%ecx), %eax in 32-bit mode and * invpcid (%rcx), %rax in long mode. */ asm volatile (".byte 0x66, 0x0f, 0x38, 0x82, 0x01" : : "m" (desc), "a" (type), "c" (&desc) : "memory"); } #define INVPCID_TYPE_INDIV_ADDR 0 #define INVPCID_TYPE_SINGLE_CTXT 1 #define INVPCID_TYPE_ALL_INCL_GLOBAL 2 #define INVPCID_TYPE_ALL_NON_GLOBAL 3 /* Flush all mappings for a given pcid and addr, not including globals. */ static inline void invpcid_flush_one(unsigned long pcid, unsigned long addr) { __invpcid(pcid, addr, INVPCID_TYPE_INDIV_ADDR); } /* Flush all mappings for a given PCID, not including globals. */ static inline void invpcid_flush_single_context(unsigned long pcid) { __invpcid(pcid, 0, INVPCID_TYPE_SINGLE_CTXT); } /* Flush all mappings, including globals, for all PCIDs. */ static inline void invpcid_flush_all(void) { __invpcid(0, 0, INVPCID_TYPE_ALL_INCL_GLOBAL); } /* Flush all mappings for all PCIDs except globals. */ static inline void invpcid_flush_all_nonglobals(void) { __invpcid(0, 0, INVPCID_TYPE_ALL_NON_GLOBAL); } #endif /* _ASM_X86_INVPCID */
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