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Message-Id: <20200319091407.1481-5-joro@8bytes.org>
Date: Thu, 19 Mar 2020 10:13:01 +0100
From: Joerg Roedel <joro@...tes.org>
To: x86@...nel.org
Cc: hpa@...or.com, Andy Lutomirski <luto@...nel.org>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Peter Zijlstra <peterz@...radead.org>,
Thomas Hellstrom <thellstrom@...are.com>,
Jiri Slaby <jslaby@...e.cz>,
Dan Williams <dan.j.williams@...el.com>,
Tom Lendacky <thomas.lendacky@....com>,
Juergen Gross <jgross@...e.com>,
Kees Cook <keescook@...omium.org>,
linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
virtualization@...ts.linux-foundation.org,
Joerg Roedel <joro@...tes.org>, Joerg Roedel <jroedel@...e.de>
Subject: [PATCH 04/70] x86/traps: Move some definitions to <asm/trap_defs.h>
From: Joerg Roedel <jroedel@...e.de>
Move the definition of x86 trap vector numbers and the page-fault
error code bits to the new header file asm/trap_defs.h. This makes it
easier to include them into pre-decompression boot code. No functional
changes.
Signed-off-by: Joerg Roedel <jroedel@...e.de>
---
arch/x86/include/asm/trap_defs.h | 49 ++++++++++++++++++++++++++++++++
arch/x86/include/asm/traps.h | 44 +---------------------------
2 files changed, 50 insertions(+), 43 deletions(-)
create mode 100644 arch/x86/include/asm/trap_defs.h
diff --git a/arch/x86/include/asm/trap_defs.h b/arch/x86/include/asm/trap_defs.h
new file mode 100644
index 000000000000..488f82ac36da
--- /dev/null
+++ b/arch/x86/include/asm/trap_defs.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_TRAP_DEFS_H
+#define _ASM_X86_TRAP_DEFS_H
+
+/* Interrupts/Exceptions */
+enum {
+ X86_TRAP_DE = 0, /* 0, Divide-by-zero */
+ X86_TRAP_DB, /* 1, Debug */
+ X86_TRAP_NMI, /* 2, Non-maskable Interrupt */
+ X86_TRAP_BP, /* 3, Breakpoint */
+ X86_TRAP_OF, /* 4, Overflow */
+ X86_TRAP_BR, /* 5, Bound Range Exceeded */
+ X86_TRAP_UD, /* 6, Invalid Opcode */
+ X86_TRAP_NM, /* 7, Device Not Available */
+ X86_TRAP_DF, /* 8, Double Fault */
+ X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */
+ X86_TRAP_TS, /* 10, Invalid TSS */
+ X86_TRAP_NP, /* 11, Segment Not Present */
+ X86_TRAP_SS, /* 12, Stack Segment Fault */
+ X86_TRAP_GP, /* 13, General Protection Fault */
+ X86_TRAP_PF, /* 14, Page Fault */
+ X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */
+ X86_TRAP_MF, /* 16, x87 Floating-Point Exception */
+ X86_TRAP_AC, /* 17, Alignment Check */
+ X86_TRAP_MC, /* 18, Machine Check */
+ X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */
+ X86_TRAP_IRET = 32, /* 32, IRET Exception */
+};
+
+/*
+ * 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_DEFS_H */
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index ffa0dc8a535e..2aa786484bb1 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -5,6 +5,7 @@
#include <linux/context_tracking_state.h>
#include <linux/kprobes.h>
+#include <asm/trap_defs.h>
#include <asm/debugreg.h>
#include <asm/siginfo.h> /* TRAP_TRACE, ... */
@@ -132,47 +133,4 @@ void __noreturn handle_stack_overflow(const char *message,
unsigned long fault_address);
#endif
-/* Interrupts/Exceptions */
-enum {
- X86_TRAP_DE = 0, /* 0, Divide-by-zero */
- X86_TRAP_DB, /* 1, Debug */
- X86_TRAP_NMI, /* 2, Non-maskable Interrupt */
- X86_TRAP_BP, /* 3, Breakpoint */
- X86_TRAP_OF, /* 4, Overflow */
- X86_TRAP_BR, /* 5, Bound Range Exceeded */
- X86_TRAP_UD, /* 6, Invalid Opcode */
- X86_TRAP_NM, /* 7, Device Not Available */
- X86_TRAP_DF, /* 8, Double Fault */
- X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */
- X86_TRAP_TS, /* 10, Invalid TSS */
- X86_TRAP_NP, /* 11, Segment Not Present */
- X86_TRAP_SS, /* 12, Stack Segment Fault */
- X86_TRAP_GP, /* 13, General Protection Fault */
- X86_TRAP_PF, /* 14, Page Fault */
- X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */
- X86_TRAP_MF, /* 16, x87 Floating-Point Exception */
- X86_TRAP_AC, /* 17, Alignment Check */
- X86_TRAP_MC, /* 18, Machine Check */
- X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */
- X86_TRAP_IRET = 32, /* 32, IRET Exception */
-};
-
-/*
- * 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 */
--
2.17.1
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