From: "tip-bot2 for Thomas Gleixner" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
Alexandre Chartre <alexandre.chartre@oracle.com>,
Peter Zijlstra <peterz@infradead.org>,
Andy Lutomirski <luto@kernel.org>, x86 <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [tip: x86/entry] x86/entry: Convert Coprocessor error exception to IDTENTRY
Date: Tue, 19 May 2020 19:58:29 -0000 [thread overview]
Message-ID: <158991830927.17951.15475314014121370314.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20200505134905.838823510@linutronix.de>
The following commit has been merged into the x86/entry branch of tip:
Commit-ID: bad29a8306cb330d3c566c0183f5f6c6291a23c4
Gitweb: https://git.kernel.org/tip/bad29a8306cb330d3c566c0183f5f6c6291a23c4
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Tue, 25 Feb 2020 23:16:27 +01:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Tue, 19 May 2020 16:04:02 +02:00
x86/entry: Convert Coprocessor error exception to IDTENTRY
Convert #MF to IDTENTRY_ERRORCODE:
- Implement the C entry point with DEFINE_IDTENTRY
- Emit the ASM stub with DECLARE_IDTENTRY
- Remove the ASM idtentry in 64bit
- Remove the open coded ASM entry code in 32bit
- Fixup the XEN/PV code
- Remove the old prototypes
- Remove the RCU warning as the new entry macro ensures correctness
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20200505134905.838823510@linutronix.de
---
arch/x86/entry/entry_32.S | 7 -------
arch/x86/entry/entry_64.S | 1 -
arch/x86/include/asm/idtentry.h | 1 +
arch/x86/include/asm/traps.h | 3 ---
arch/x86/kernel/idt.c | 2 +-
arch/x86/kernel/traps.c | 5 ++---
arch/x86/xen/enlighten_pv.c | 2 +-
arch/x86/xen/xen-asm_64.S | 2 +-
8 files changed, 6 insertions(+), 17 deletions(-)
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index f7610e1..66d4683 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -1290,13 +1290,6 @@ SYM_FUNC_END(name)
/* The include is where all of the SMP etc. interrupts come from */
#include <asm/entry_arch.h>
-SYM_CODE_START(coprocessor_error)
- ASM_CLAC
- pushl $0
- pushl $do_coprocessor_error
- jmp common_exception
-SYM_CODE_END(coprocessor_error)
-
SYM_CODE_START(simd_coprocessor_error)
ASM_CLAC
pushl $0
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 1a677ee..f1f126b 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1073,7 +1073,6 @@ apicinterrupt IRQ_WORK_VECTOR irq_work_interrupt smp_irq_work_interrupt
*/
idtentry X86_TRAP_BP int3 do_int3 has_error_code=0
-idtentry X86_TRAP_MF coprocessor_error do_coprocessor_error has_error_code=0
idtentry X86_TRAP_AC alignment_check do_alignment_check has_error_code=1
idtentry X86_TRAP_XF simd_coprocessor_error do_simd_coprocessor_error has_error_code=0
diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h
index d309b06..ed44ba6 100644
--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -130,6 +130,7 @@ DECLARE_IDTENTRY(X86_TRAP_UD, exc_invalid_op);
DECLARE_IDTENTRY(X86_TRAP_NM, exc_device_not_available);
DECLARE_IDTENTRY(X86_TRAP_OLD_MF, exc_coproc_segment_overrun);
DECLARE_IDTENTRY(X86_TRAP_SPURIOUS, exc_spurious_interrupt_bug);
+DECLARE_IDTENTRY(X86_TRAP_MF, exc_coprocessor_error);
/* Simple exception entries with error code pushed by hardware */
DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_TS, exc_invalid_tss);
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 4450f3b..e84677b 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -19,7 +19,6 @@ asmlinkage void double_fault(void);
#endif
asmlinkage void page_fault(void);
asmlinkage void async_page_fault(void);
-asmlinkage void coprocessor_error(void);
asmlinkage void alignment_check(void);
#ifdef CONFIG_X86_MCE
asmlinkage void machine_check(void);
@@ -32,7 +31,6 @@ asmlinkage void xen_xendebug(void);
asmlinkage void xen_int3(void);
asmlinkage void xen_double_fault(void);
asmlinkage void xen_page_fault(void);
-asmlinkage void xen_coprocessor_error(void);
asmlinkage void xen_alignment_check(void);
#ifdef CONFIG_X86_MCE
asmlinkage void xen_machine_check(void);
@@ -45,7 +43,6 @@ dotraplinkage void do_nmi(struct pt_regs *regs, long error_code);
dotraplinkage void do_int3(struct pt_regs *regs, long error_code);
dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code, unsigned long cr2);
dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
-dotraplinkage void do_coprocessor_error(struct pt_regs *regs, long error_code);
dotraplinkage void do_alignment_check(struct pt_regs *regs, long error_code);
dotraplinkage void do_simd_coprocessor_error(struct pt_regs *regs, long error_code);
#ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
index 8e8936d..2bde50d 100644
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -84,7 +84,7 @@ static const __initconst struct idt_data def_idts[] = {
INTG(X86_TRAP_SS, asm_exc_stack_segment),
INTG(X86_TRAP_GP, asm_exc_general_protection),
INTG(X86_TRAP_SPURIOUS, asm_exc_spurious_interrupt_bug),
- INTG(X86_TRAP_MF, coprocessor_error),
+ INTG(X86_TRAP_MF, asm_exc_coprocessor_error),
INTG(X86_TRAP_AC, alignment_check),
INTG(X86_TRAP_XF, simd_coprocessor_error),
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 2c638b9..ba26beb 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -854,10 +854,9 @@ exit:
cond_local_irq_disable(regs);
}
-dotraplinkage void do_coprocessor_error(struct pt_regs *regs, long error_code)
+DEFINE_IDTENTRY(exc_coprocessor_error)
{
- RCU_LOCKDEP_WARN(!rcu_is_watching(), "entry code didn't wake RCU");
- math_error(regs, error_code, X86_TRAP_MF);
+ math_error(regs, 0, X86_TRAP_MF);
}
dotraplinkage void
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 180c86a..6225d1f 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -633,7 +633,7 @@ static struct trap_array_entry trap_array[] = {
TRAP_ENTRY(exc_stack_segment, false ),
TRAP_ENTRY(exc_general_protection, false ),
TRAP_ENTRY(exc_spurious_interrupt_bug, false ),
- { coprocessor_error, xen_coprocessor_error, false },
+ TRAP_ENTRY(exc_coprocessor_error, false ),
{ alignment_check, xen_alignment_check, false },
{ simd_coprocessor_error, xen_simd_coprocessor_error, false },
};
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index 698a9c5..589de18 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -45,7 +45,7 @@ xen_pv_trap asm_exc_stack_segment
xen_pv_trap asm_exc_general_protection
xen_pv_trap page_fault
xen_pv_trap asm_exc_spurious_interrupt_bug
-xen_pv_trap coprocessor_error
+xen_pv_trap asm_exc_coprocessor_error
xen_pv_trap alignment_check
#ifdef CONFIG_X86_MCE
xen_pv_trap machine_check
next prev parent reply other threads:[~2020-05-19 19:58 UTC|newest]
Thread overview: 129+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 13:43 [patch V4 part 3 00/29] x86/entry: Entry/exception code rework, simple exceptions Thomas Gleixner
2020-05-05 13:43 ` [patch V4 part 3 01/29] x86/traps: Mark fixup_bad_iret() noinstr Thomas Gleixner
2020-05-09 0:39 ` Andy Lutomirski
2020-05-13 1:51 ` Steven Rostedt
2020-05-14 0:41 ` Mathieu Desnoyers
2020-05-14 1:35 ` Andy Lutomirski
2020-05-11 12:28 ` Masami Hiramatsu
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:43 ` [patch V4 part 3 02/29] x86/traps: Mark sync_regs() noinstr Thomas Gleixner
2020-05-09 0:39 ` Andy Lutomirski
2020-05-11 12:08 ` Masami Hiramatsu
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:43 ` [patch V4 part 3 03/29] x86/entry: Disable interrupts for native_load_gs_index() in C code Thomas Gleixner
2020-05-09 0:40 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:43 ` [patch V4 part 3 04/29] x86/traps: Make interrupt enable/disable symmetric " Thomas Gleixner
2020-05-07 15:25 ` Alexandre Chartre
2020-05-07 17:14 ` Thomas Gleixner
2020-05-09 0:44 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:43 ` [patch V4 part 3 05/29] x86/traps: Split trap numbers out in a seperate header Thomas Gleixner
2020-05-07 15:34 ` Alexandre Chartre
2020-05-19 19:58 ` [tip: x86/entry] x86/traps: Split trap numbers out in a separate header tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 06/29] x86/entry/64: Reorder idtentries Thomas Gleixner
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 07/29] x86/entry: Distangle idtentry Thomas Gleixner
2020-05-10 20:31 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 08/29] x86/entry/64: Provide sane error entry/exit Thomas Gleixner
2020-05-10 21:02 ` Andy Lutomirski
2020-05-13 2:10 ` Steven Rostedt
2020-05-13 6:35 ` Thomas Gleixner
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 09/29] x86/entry/32: Provide macro to emit IDT entry stubs Thomas Gleixner
2020-05-11 0:55 ` Andy Lutomirski
2020-05-14 1:44 ` Mathieu Desnoyers
2020-05-14 4:31 ` Andy Lutomirski
2020-05-14 13:38 ` Mathieu Desnoyers
2020-05-14 14:08 ` Thomas Gleixner
2020-05-14 14:43 ` Mathieu Desnoyers
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 10/29] x86/idtentry: Provide macros to define/declare IDT entry points Thomas Gleixner
2020-05-11 0:58 ` Andy Lutomirski
2020-05-11 10:39 ` Thomas Gleixner
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 11/29] rcu: Provide rcu_irq_exit_preempt() Thomas Gleixner
2020-05-05 22:02 ` Paul E. McKenney
2020-05-05 22:05 ` Thomas Gleixner
2020-05-05 22:24 ` Paul E. McKenney
2020-05-14 1:03 ` Mathieu Desnoyers
2020-05-14 2:41 ` Joel Fernandes
2020-05-14 2:46 ` Joel Fernandes
2020-05-14 14:43 ` Thomas Gleixner
2020-05-15 19:00 ` Joel Fernandes
2020-05-19 19:52 ` [tip: core/rcu] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 12/29] x86/entry/common: Provide idtentry_enter/exit() Thomas Gleixner
2020-05-07 16:27 ` Alexandre Chartre
2020-05-11 4:34 ` Andy Lutomirski
2020-05-11 10:59 ` [patch V5 " Thomas Gleixner
2020-05-11 15:31 ` Andy Lutomirski
2020-05-11 18:42 ` Thomas Gleixner
2020-05-12 16:49 ` [patch V6 " Thomas Gleixner
2020-05-14 0:51 ` Andy Lutomirski
2020-05-14 1:08 ` [patch V4 " Mathieu Desnoyers
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 13/29] x86/traps: Prepare for using DEFINE_IDTENTRY Thomas Gleixner
2020-05-14 4:37 ` Andy Lutomirski
2020-05-14 12:16 ` Thomas Gleixner
2020-05-14 12:33 ` Peter Zijlstra
2020-05-15 13:42 ` Thomas Gleixner
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 14/29] x86/entry: Convert Divide Error to IDTENTRY Thomas Gleixner
2020-05-14 4:38 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-10-11 15:25 ` Dmitry Vyukov
2020-10-11 17:50 ` Thomas Gleixner
2020-10-12 13:19 ` [tip: x86/urgent] x86/traps: Fix #DE Oops message regression tip-bot2 for Thomas Gleixner
2020-10-12 20:30 ` [tip: x86/entry] x86/entry: Convert Divide Error to IDTENTRY Kees Cook
2020-10-13 10:19 ` Dmitry Vyukov
2020-10-13 17:41 ` [tip: x86/urgent] x86/traps: Fix #DE Oops message regression tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 15/29] x86/entry: Convert Overflow exception to IDTENTRY Thomas Gleixner
2020-05-14 4:39 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 16/29] x86/entry: Convert Bounds " Thomas Gleixner
2020-05-14 4:42 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 17/29] x86/entry: Convert Invalid Opcode " Thomas Gleixner
2020-05-14 4:45 ` Andy Lutomirski
2020-05-14 12:33 ` Thomas Gleixner
2020-05-14 15:00 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 18/29] x86/entry: Convert Device not available " Thomas Gleixner
2020-05-14 4:45 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 19/29] x86/entry: Convert Coprocessor segment overrun " Thomas Gleixner
2020-05-14 4:46 ` Andy Lutomirski
2020-05-05 13:44 ` [patch V4 part 3 20/29] x86/entry: Provide IDTENTRY_ERRORCODE Thomas Gleixner
2020-05-14 4:46 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] x86/idtentry: " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 21/29] x86/entry: Convert Invalid TSS exception to IDTENTRY Thomas Gleixner
2020-05-14 4:48 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 22/29] x86/entry: Convert Segment not present " Thomas Gleixner
2020-05-14 4:47 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 23/29] x86/entry: Convert Stack segment " Thomas Gleixner
2020-05-14 4:49 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 24/29] x86/entry: Convert General protection " Thomas Gleixner
2020-05-14 4:50 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 25/29] x86/entry: Convert Spurious interrupt bug " Thomas Gleixner
2020-05-14 4:47 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 26/29] x86/entry: Convert Coprocessor error " Thomas Gleixner
2020-05-14 4:49 ` Andy Lutomirski
2020-05-19 19:58 ` tip-bot2 for Thomas Gleixner [this message]
2020-05-19 19:58 ` [tip: x86/entry] x86/entry: Convert Coprocessor segment overrun " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 27/29] x86/entry: Convert Alignment check " Thomas Gleixner
2020-05-14 4:50 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 28/29] x86/entry: Convert SIMD coprocessor error " Thomas Gleixner
2020-05-14 4:56 ` Andy Lutomirski
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
2020-05-05 13:44 ` [patch V4 part 3 29/29] x86/entry/32: Convert IRET exception to IDTENTRY_SW Thomas Gleixner
2020-05-07 16:47 ` Alexandre Chartre
2020-05-14 4:54 ` Andy Lutomirski
2020-05-15 14:11 ` Thomas Gleixner
2020-05-19 19:58 ` [tip: x86/entry] " tip-bot2 for Thomas Gleixner
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