d1fbefcb3a
The control registers are unsigned long (32 bits on i386, 64 bits on x86-64), and so make that manifest in the data type for the various constants. Add defines with a _BIT suffix which defines the bit number, as opposed to the bit mask. This should resolve some issues with ~bitmask that Linus discovered. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/n/tip-cwckhbrib2aux1qbteaebij0@git.kernel.org
153 lines
5.9 KiB
C
153 lines
5.9 KiB
C
#ifndef _UAPI_ASM_X86_PROCESSOR_FLAGS_H
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#define _UAPI_ASM_X86_PROCESSOR_FLAGS_H
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/* Various flags defined: can be included from assembler. */
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#include <linux/const.h>
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/*
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* EFLAGS bits
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*/
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#define X86_EFLAGS_CF_BIT 0 /* Carry Flag */
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#define X86_EFLAGS_CF _BITUL(X86_EFLAGS_CF_BIT)
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#define X86_EFLAGS_FIXED_BIT 1 /* Bit 1 - always on */
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#define X86_EFLAGS_FIXED _BITUL(X86_EFLAGS_FIXED_BIT)
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#define X86_EFLAGS_PF_BIT 2 /* Parity Flag */
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#define X86_EFLAGS_PF _BITUL(X86_EFLAGS_PF_BIT)
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#define X86_EFLAGS_AF_BIT 4 /* Auxiliary carry Flag */
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#define X86_EFLAGS_AF _BITUL(X86_EFLAGS_AF_BIT)
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#define X86_EFLAGS_ZF_BIT 6 /* Zero Flag */
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#define X86_EFLAGS_ZF _BITUL(X86_EFLAGS_ZF_BIT)
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#define X86_EFLAGS_SF_BIT 7 /* Sign Flag */
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#define X86_EFLAGS_SF _BITUL(X86_EFLAGS_SF_BIT)
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#define X86_EFLAGS_TF_BIT 8 /* Trap Flag */
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#define X86_EFLAGS_TF _BITUL(X86_EFLAGS_TF_BIT)
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#define X86_EFLAGS_IF_BIT 9 /* Interrupt Flag */
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#define X86_EFLAGS_IF _BITUL(X86_EFLAGS_IF_BIT)
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#define X86_EFLAGS_DF_BIT 10 /* Direction Flag */
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#define X86_EFLAGS_DF _BITUL(X86_EFLAGS_DF_BIT)
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#define X86_EFLAGS_OF_BIT 11 /* Overflow Flag */
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#define X86_EFLAGS_OF _BITUL(X86_EFLAGS_OF_BIT)
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#define X86_EFLAGS_IOPL_BIT 12 /* I/O Privilege Level (2 bits) */
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#define X86_EFLAGS_IOPL (_AC(3,UL) << X86_EFLAGS_IOPL_BIT)
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#define X86_EFLAGS_NT_BIT 14 /* Nested Task */
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#define X86_EFLAGS_NT _BITUL(X86_EFLAGS_NT_BIT)
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#define X86_EFLAGS_RF_BIT 16 /* Resume Flag */
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#define X86_EFLAGS_RF _BITUL(X86_EFLAGS_RF_BIT)
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#define X86_EFLAGS_VM_BIT 17 /* Virtual Mode */
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#define X86_EFLAGS_VM _BITUL(X86_EFLAGS_VM_BIT)
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#define X86_EFLAGS_AC_BIT 18 /* Alignment Check/Access Control */
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#define X86_EFLAGS_AC _BITUL(X86_EFLAGS_AC_BIT)
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#define X86_EFLAGS_AC_BIT 18 /* Alignment Check/Access Control */
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#define X86_EFLAGS_AC _BITUL(X86_EFLAGS_AC_BIT)
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#define X86_EFLAGS_VIF_BIT 19 /* Virtual Interrupt Flag */
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#define X86_EFLAGS_VIF _BITUL(X86_EFLAGS_VIF_BIT)
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#define X86_EFLAGS_VIP_BIT 20 /* Virtual Interrupt Pending */
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#define X86_EFLAGS_VIP _BITUL(X86_EFLAGS_VIP_BIT)
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#define X86_EFLAGS_ID_BIT 21 /* CPUID detection */
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#define X86_EFLAGS_ID _BITUL(X86_EFLAGS_ID_BIT)
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/*
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* Basic CPU control in CR0
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*/
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#define X86_CR0_PE_BIT 0 /* Protection Enable */
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#define X86_CR0_PE _BITUL(X86_CR0_PE_BIT)
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#define X86_CR0_MP_BIT 1 /* Monitor Coprocessor */
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#define X86_CR0_MP _BITUL(X86_CR0_MP_BIT)
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#define X86_CR0_EM_BIT 2 /* Emulation */
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#define X86_CR0_EM _BITUL(X86_CR0_EM_BIT)
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#define X86_CR0_TS_BIT 3 /* Task Switched */
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#define X86_CR0_TS _BITUL(X86_CR0_TS_BIT)
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#define X86_CR0_ET_BIT 4 /* Extension Type */
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#define X86_CR0_ET _BITUL(X86_CR0_ET_BIT)
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#define X86_CR0_NE_BIT 5 /* Numeric Error */
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#define X86_CR0_NE _BITUL(X86_CR0_NE_BIT)
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#define X86_CR0_WP_BIT 16 /* Write Protect */
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#define X86_CR0_WP _BITUL(X86_CR0_WP_BIT)
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#define X86_CR0_AM_BIT 18 /* Alignment Mask */
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#define X86_CR0_AM _BITUL(X86_CR0_AM_BIT)
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#define X86_CR0_NW_BIT 29 /* Not Write-through */
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#define X86_CR0_NW _BITUL(X86_CR0_NW_BIT)
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#define X86_CR0_CD_BIT 30 /* Cache Disable */
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#define X86_CR0_CD _BITUL(X86_CR0_CD_BIT)
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#define X86_CR0_PG_BIT 31 /* Paging */
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#define X86_CR0_PG _BITUL(X86_CR0_PG_BIT)
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/*
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* Paging options in CR3
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*/
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#define X86_CR3_PWT_BIT 3 /* Page Write Through */
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#define X86_CR3_PWT _BITUL(X86_CR3_PWT_BIT)
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#define X86_CR3_PCD_BIT 4 /* Page Cache Disable */
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#define X86_CR3_PCD _BITUL(X86_CR3_PCD_BIT)
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#define X86_CR3_PCID_MASK _AC(0x00000fff,UL) /* PCID Mask */
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/*
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* Intel CPU features in CR4
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*/
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#define X86_CR4_VME_BIT 0 /* enable vm86 extensions */
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#define X86_CR4_VME _BITUL(X86_CR4_VME_BIT)
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#define X86_CR4_PVI_BIT 1 /* virtual interrupts flag enable */
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#define X86_CR4_PVI _BITUL(X86_CR4_PVI_BIT)
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#define X86_CR4_TSD_BIT 2 /* disable time stamp at ipl 3 */
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#define X86_CR4_TSD _BITUL(X86_CR4_TSD_BIT)
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#define X86_CR4_DE_BIT 3 /* enable debugging extensions */
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#define X86_CR4_DE _BITUL(X86_CR4_DE_BIT)
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#define X86_CR4_PSE_BIT 4 /* enable page size extensions */
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#define X86_CR4_PSE _BITUL(X86_CR4_PSE_BIT)
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#define X86_CR4_PAE_BIT 5 /* enable physical address extensions */
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#define X86_CR4_PAE _BITUL(X86_CR4_PAE_BIT)
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#define X86_CR4_MCE_BIT 6 /* Machine check enable */
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#define X86_CR4_MCE _BITUL(X86_CR4_MCE_BIT)
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#define X86_CR4_PGE_BIT 7 /* enable global pages */
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#define X86_CR4_PGE _BITUL(X86_CR4_PGE_BIT)
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#define X86_CR4_PCE_BIT 8 /* enable performance counters at ipl 3 */
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#define X86_CR4_PCE _BITUL(X86_CR4_PCE_BIT)
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#define X86_CR4_OSFXSR_BIT 9 /* enable fast FPU save and restore */
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#define X86_CR4_OSFXSR _BITUL(X86_CR4_OSFXSR_BIT)
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#define X86_CR4_OSXMMEXCPT_BIT 10 /* enable unmasked SSE exceptions */
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#define X86_CR4_OSXMMEXCPT _BITUL(X86_CR4_OSXMMEXCPT_BIT)
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#define X86_CR4_VMXE_BIT 13 /* enable VMX virtualization */
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#define X86_CR4_VMXE _BITUL(X86_CR4_VMXE_BIT)
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#define X86_CR4_SMXE_BIT 14 /* enable safer mode (TXT) */
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#define X86_CR4_SMXE _BITUL(X86_CR4_SMXE_BIT)
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#define X86_CR4_FSGSBASE_BIT 16 /* enable RDWRFSGS support */
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#define X86_CR4_FSGSBASE _BITUL(X86_CR4_FSGSBASE_BIT)
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#define X86_CR4_PCIDE_BIT 17 /* enable PCID support */
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#define X86_CR4_PCIDE _BITUL(X86_CR4_PCIDE_BIT)
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#define X86_CR4_OSXSAVE_BIT 18 /* enable xsave and xrestore */
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#define X86_CR4_OSXSAVE _BITUL(X86_CR4_OSXSAVE_BIT)
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#define X86_CR4_SMEP_BIT 20 /* enable SMEP support */
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#define X86_CR4_SMEP _BITUL(X86_CR4_SMEP_BIT)
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#define X86_CR4_SMAP_BIT 21 /* enable SMAP support */
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#define X86_CR4_SMAP _BITUL(X86_CR4_SMAP_BIT)
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/*
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* x86-64 Task Priority Register, CR8
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*/
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#define X86_CR8_TPR _AC(0x0000000f,UL) /* task priority register */
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/*
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* AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>
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*/
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/*
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* NSC/Cyrix CPU configuration register indexes
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*/
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#define CX86_PCR0 0x20
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#define CX86_GCR 0xb8
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#define CX86_CCR0 0xc0
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#define CX86_CCR1 0xc1
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#define CX86_CCR2 0xc2
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#define CX86_CCR3 0xc3
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#define CX86_CCR4 0xe8
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#define CX86_CCR5 0xe9
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#define CX86_CCR6 0xea
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#define CX86_CCR7 0xeb
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#define CX86_PCR1 0xf0
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#define CX86_DIR0 0xfe
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#define CX86_DIR1 0xff
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#define CX86_ARR_BASE 0xc4
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#define CX86_RCR_BASE 0xdc
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#endif /* _UAPI_ASM_X86_PROCESSOR_FLAGS_H */
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