[PATCH v6 06/76] x86/traps: Move pf error codes to <asm/trap_pf.h>
From: Joerg Roedel <joro@8bytes.org>
Date: 2020-08-24 09:17:34
Also in:
kvm, lkml
Subsystem:
the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
From: Joerg Roedel <redacted> Move the definition of the x86 page-fault error code bits to the new header file asm/trap_pf.h. This makes it easier to include them into pre-decompression boot code. No functional changes. Signed-off-by: Joerg Roedel <redacted> Link: https://lore.kernel.org/r/20200724160336.5435-6-joro@8bytes.org (local) --- arch/x86/include/asm/trap_pf.h | 24 ++++++++++++++++++++++++ arch/x86/include/asm/traps.h | 19 +------------------ 2 files changed, 25 insertions(+), 18 deletions(-) create mode 100644 arch/x86/include/asm/trap_pf.h
diff --git a/arch/x86/include/asm/trap_pf.h b/arch/x86/include/asm/trap_pf.h
new file mode 100644
index 000000000000..305bc1214aef
--- /dev/null
+++ b/arch/x86/include/asm/trap_pf.h@@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_TRAP_PF_H +#define _ASM_X86_TRAP_PF_H + +/* + * Page fault error code bits: + * + * bit 0 == 0: no page found 1: protection fault + * bit 1 == 0: read access 1: write access + * bit 2 == 0: kernel-mode access 1: user-mode access + * bit 3 == 1: use of reserved bit detected + * bit 4 == 1: fault was an instruction fetch + * bit 5 == 1: protection keys block access + */ +enum x86_pf_error_code { + X86_PF_PROT = 1 << 0, + X86_PF_WRITE = 1 << 1, + X86_PF_USER = 1 << 2, + X86_PF_RSVD = 1 << 3, + X86_PF_INSTR = 1 << 4, + X86_PF_PK = 1 << 5, +}; + +#endif /* _ASM_X86_TRAP_PF_H */
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 714b1a30e7b0..6a308355ea29 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h@@ -8,6 +8,7 @@ #include <asm/debugreg.h> #include <asm/idtentry.h> #include <asm/siginfo.h> /* TRAP_TRACE, ... */ +#include <asm/trap_pf.h> #ifdef CONFIG_X86_64 asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
@@ -41,22 +42,4 @@ void __noreturn handle_stack_overflow(const char *message, unsigned long fault_address); #endif -/* - * Page fault error code bits: - * - * bit 0 == 0: no page found 1: protection fault - * bit 1 == 0: read access 1: write access - * bit 2 == 0: kernel-mode access 1: user-mode access - * bit 3 == 1: use of reserved bit detected - * bit 4 == 1: fault was an instruction fetch - * bit 5 == 1: protection keys block access - */ -enum x86_pf_error_code { - X86_PF_PROT = 1 << 0, - X86_PF_WRITE = 1 << 1, - X86_PF_USER = 1 << 2, - X86_PF_RSVD = 1 << 3, - X86_PF_INSTR = 1 << 4, - X86_PF_PK = 1 << 5, -}; #endif /* _ASM_X86_TRAPS_H */
--
2.28.0
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