| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| #ifndef _UAPI_ASM_X86_PROCESSOR_FLAGS_H |
| #define _UAPI_ASM_X86_PROCESSOR_FLAGS_H |
| /* Various flags defined: can be included from assembler. */ |
| |
| #include <linux/const.h> |
| |
| /* |
| * EFLAGS bits |
| */ |
| #define X86_EFLAGS_CF_BIT 0 /* Carry Flag */ |
| #define X86_EFLAGS_CF _BITUL(X86_EFLAGS_CF_BIT) |
| #define X86_EFLAGS_FIXED_BIT 1 /* Bit 1 - always on */ |
| #define X86_EFLAGS_FIXED _BITUL(X86_EFLAGS_FIXED_BIT) |
| #define X86_EFLAGS_PF_BIT 2 /* Parity Flag */ |
| #define X86_EFLAGS_PF _BITUL(X86_EFLAGS_PF_BIT) |
| #define X86_EFLAGS_AF_BIT 4 /* Auxiliary carry Flag */ |
| #define X86_EFLAGS_AF _BITUL(X86_EFLAGS_AF_BIT) |
| #define X86_EFLAGS_ZF_BIT 6 /* Zero Flag */ |
| #define X86_EFLAGS_ZF _BITUL(X86_EFLAGS_ZF_BIT) |
| #define X86_EFLAGS_SF_BIT 7 /* Sign Flag */ |
| #define X86_EFLAGS_SF _BITUL(X86_EFLAGS_SF_BIT) |
| #define X86_EFLAGS_TF_BIT 8 /* Trap Flag */ |
| #define X86_EFLAGS_TF _BITUL(X86_EFLAGS_TF_BIT) |
| #define X86_EFLAGS_IF_BIT 9 /* Interrupt Flag */ |
| #define X86_EFLAGS_IF _BITUL(X86_EFLAGS_IF_BIT) |
| #define X86_EFLAGS_DF_BIT 10 /* Direction Flag */ |
| #define X86_EFLAGS_DF _BITUL(X86_EFLAGS_DF_BIT) |
| #define X86_EFLAGS_OF_BIT 11 /* Overflow Flag */ |
| #define X86_EFLAGS_OF _BITUL(X86_EFLAGS_OF_BIT) |
| #define X86_EFLAGS_IOPL_BIT 12 /* I/O Privilege Level (2 bits) */ |
| #define X86_EFLAGS_IOPL (_AC(3,UL) << X86_EFLAGS_IOPL_BIT) |
| #define X86_EFLAGS_NT_BIT 14 /* Nested Task */ |
| #define X86_EFLAGS_NT _BITUL(X86_EFLAGS_NT_BIT) |
| #define X86_EFLAGS_RF_BIT 16 /* Resume Flag */ |
| #define X86_EFLAGS_RF _BITUL(X86_EFLAGS_RF_BIT) |
| #define X86_EFLAGS_VM_BIT 17 /* Virtual Mode */ |
| #define X86_EFLAGS_VM _BITUL(X86_EFLAGS_VM_BIT) |
| #define X86_EFLAGS_AC_BIT 18 /* Alignment Check/Access Control */ |
| #define X86_EFLAGS_AC _BITUL(X86_EFLAGS_AC_BIT) |
| #define X86_EFLAGS_VIF_BIT 19 /* Virtual Interrupt Flag */ |
| #define X86_EFLAGS_VIF _BITUL(X86_EFLAGS_VIF_BIT) |
| #define X86_EFLAGS_VIP_BIT 20 /* Virtual Interrupt Pending */ |
| #define X86_EFLAGS_VIP _BITUL(X86_EFLAGS_VIP_BIT) |
| #define X86_EFLAGS_ID_BIT 21 /* CPUID detection */ |
| #define X86_EFLAGS_ID _BITUL(X86_EFLAGS_ID_BIT) |
| |
| /* |
| * Basic CPU control in CR0 |
| */ |
| #define X86_CR0_PE_BIT 0 /* Protection Enable */ |
| #define X86_CR0_PE _BITUL(X86_CR0_PE_BIT) |
| #define X86_CR0_MP_BIT 1 /* Monitor Coprocessor */ |
| #define X86_CR0_MP _BITUL(X86_CR0_MP_BIT) |
| #define X86_CR0_EM_BIT 2 /* Emulation */ |
| #define X86_CR0_EM _BITUL(X86_CR0_EM_BIT) |
| #define X86_CR0_TS_BIT 3 /* Task Switched */ |
| #define X86_CR0_TS _BITUL(X86_CR0_TS_BIT) |
| #define X86_CR0_ET_BIT 4 /* Extension Type */ |
| #define X86_CR0_ET _BITUL(X86_CR0_ET_BIT) |
| #define X86_CR0_NE_BIT 5 /* Numeric Error */ |
| #define X86_CR0_NE _BITUL(X86_CR0_NE_BIT) |
| #define X86_CR0_WP_BIT 16 /* Write Protect */ |
| #define X86_CR0_WP _BITUL(X86_CR0_WP_BIT) |
| #define X86_CR0_AM_BIT 18 /* Alignment Mask */ |
| #define X86_CR0_AM _BITUL(X86_CR0_AM_BIT) |
| #define X86_CR0_NW_BIT 29 /* Not Write-through */ |
| #define X86_CR0_NW _BITUL(X86_CR0_NW_BIT) |
| #define X86_CR0_CD_BIT 30 /* Cache Disable */ |
| #define X86_CR0_CD _BITUL(X86_CR0_CD_BIT) |
| #define X86_CR0_PG_BIT 31 /* Paging */ |
| #define X86_CR0_PG _BITUL(X86_CR0_PG_BIT) |
| |
| /* |
| * Paging options in CR3 |
| */ |
| #define X86_CR3_PWT_BIT 3 /* Page Write Through */ |
| #define X86_CR3_PWT _BITUL(X86_CR3_PWT_BIT) |
| #define X86_CR3_PCD_BIT 4 /* Page Cache Disable */ |
| #define X86_CR3_PCD _BITUL(X86_CR3_PCD_BIT) |
| |
| #define X86_CR3_PCID_BITS 12 |
| #define X86_CR3_PCID_MASK (_AC((1UL << X86_CR3_PCID_BITS) - 1, UL)) |
| |
| #define X86_CR3_PCID_NOFLUSH_BIT 63 /* Preserve old PCID */ |
| #define X86_CR3_PCID_NOFLUSH _BITULL(X86_CR3_PCID_NOFLUSH_BIT) |
| |
| /* |
| * Intel CPU features in CR4 |
| */ |
| #define X86_CR4_VME_BIT 0 /* enable vm86 extensions */ |
| #define X86_CR4_VME _BITUL(X86_CR4_VME_BIT) |
| #define X86_CR4_PVI_BIT 1 /* virtual interrupts flag enable */ |
| #define X86_CR4_PVI _BITUL(X86_CR4_PVI_BIT) |
| #define X86_CR4_TSD_BIT 2 /* disable time stamp at ipl 3 */ |
| #define X86_CR4_TSD _BITUL(X86_CR4_TSD_BIT) |
| #define X86_CR4_DE_BIT 3 /* enable debugging extensions */ |
| #define X86_CR4_DE _BITUL(X86_CR4_DE_BIT) |
| #define X86_CR4_PSE_BIT 4 /* enable page size extensions */ |
| #define X86_CR4_PSE _BITUL(X86_CR4_PSE_BIT) |
| #define X86_CR4_PAE_BIT 5 /* enable physical address extensions */ |
| #define X86_CR4_PAE _BITUL(X86_CR4_PAE_BIT) |
| #define X86_CR4_MCE_BIT 6 /* Machine check enable */ |
| #define X86_CR4_MCE _BITUL(X86_CR4_MCE_BIT) |
| #define X86_CR4_PGE_BIT 7 /* enable global pages */ |
| #define X86_CR4_PGE _BITUL(X86_CR4_PGE_BIT) |
| #define X86_CR4_PCE_BIT 8 /* enable performance counters at ipl 3 */ |
| #define X86_CR4_PCE _BITUL(X86_CR4_PCE_BIT) |
| #define X86_CR4_OSFXSR_BIT 9 /* enable fast FPU save and restore */ |
| #define X86_CR4_OSFXSR _BITUL(X86_CR4_OSFXSR_BIT) |
| #define X86_CR4_OSXMMEXCPT_BIT 10 /* enable unmasked SSE exceptions */ |
| #define X86_CR4_OSXMMEXCPT _BITUL(X86_CR4_OSXMMEXCPT_BIT) |
| #define X86_CR4_UMIP_BIT 11 /* enable UMIP support */ |
| #define X86_CR4_UMIP _BITUL(X86_CR4_UMIP_BIT) |
| #define X86_CR4_LA57_BIT 12 /* enable 5-level page tables */ |
| #define X86_CR4_LA57 _BITUL(X86_CR4_LA57_BIT) |
| #define X86_CR4_VMXE_BIT 13 /* enable VMX virtualization */ |
| #define X86_CR4_VMXE _BITUL(X86_CR4_VMXE_BIT) |
| #define X86_CR4_SMXE_BIT 14 /* enable safer mode (TXT) */ |
| #define X86_CR4_SMXE _BITUL(X86_CR4_SMXE_BIT) |
| #define X86_CR4_FSGSBASE_BIT 16 /* enable RDWRFSGS support */ |
| #define X86_CR4_FSGSBASE _BITUL(X86_CR4_FSGSBASE_BIT) |
| #define X86_CR4_PCIDE_BIT 17 /* enable PCID support */ |
| #define X86_CR4_PCIDE _BITUL(X86_CR4_PCIDE_BIT) |
| #define X86_CR4_OSXSAVE_BIT 18 /* enable xsave and xrestore */ |
| #define X86_CR4_OSXSAVE _BITUL(X86_CR4_OSXSAVE_BIT) |
| #define X86_CR4_SMEP_BIT 20 /* enable SMEP support */ |
| #define X86_CR4_SMEP _BITUL(X86_CR4_SMEP_BIT) |
| #define X86_CR4_SMAP_BIT 21 /* enable SMAP support */ |
| #define X86_CR4_SMAP _BITUL(X86_CR4_SMAP_BIT) |
| #define X86_CR4_PKE_BIT 22 /* enable Protection Keys support */ |
| #define X86_CR4_PKE _BITUL(X86_CR4_PKE_BIT) |
| |
| /* |
| * x86-64 Task Priority Register, CR8 |
| */ |
| #define X86_CR8_TPR _AC(0x0000000f,UL) /* task priority register */ |
| |
| /* |
| * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h> |
| */ |
| |
| /* |
| * NSC/Cyrix CPU configuration register indexes |
| */ |
| #define CX86_PCR0 0x20 |
| #define CX86_GCR 0xb8 |
| #define CX86_CCR0 0xc0 |
| #define CX86_CCR1 0xc1 |
| #define CX86_CCR2 0xc2 |
| #define CX86_CCR3 0xc3 |
| #define CX86_CCR4 0xe8 |
| #define CX86_CCR5 0xe9 |
| #define CX86_CCR6 0xea |
| #define CX86_CCR7 0xeb |
| #define CX86_PCR1 0xf0 |
| #define CX86_DIR0 0xfe |
| #define CX86_DIR1 0xff |
| #define CX86_ARR_BASE 0xc4 |
| #define CX86_RCR_BASE 0xdc |
| |
| #define CR0_STATE (X86_CR0_PE | X86_CR0_MP | X86_CR0_ET | \ |
| X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | \ |
| X86_CR0_PG) |
| |
| #endif /* _UAPI_ASM_X86_PROCESSOR_FLAGS_H */ |
