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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-05-21 22:05:28 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 15:15:09 +0200 |
| commit | 91eeafea1e4b7c95cc4f38af186d7d48fceef89a (patch) | |
| tree | e7d395973be4df9527769a73cedcb99d1c835ce4 /arch/x86/kernel/idt.c | |
| parent | 00cf8baf9c2af3c17f9d77bb9d07d44d330d0df2 (diff) | |
| download | linux-91eeafea1e4b7c95cc4f38af186d7d48fceef89a.tar.bz2 | |
x86/entry: Switch page fault exception to IDTENTRY_RAW
Convert page fault exceptions to IDTENTRY_RAW:
- Implement the C entry point with DEFINE_IDTENTRY_RAW
- Add the CR2 read into the exception handler
- Add the idtentry_enter/exit_cond_rcu() invocations in
in the regular page fault handler and in the async PF
part.
- Emit the ASM stub with DECLARE_IDTENTRY_RAW
- Remove the ASM idtentry in 64-bit
- Remove the CR2 read from 64-bit
- Remove the open coded ASM entry code in 32-bit
- Fix up the XEN/PV code
- Remove the old prototypes
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20200521202118.238455120@linutronix.de
Diffstat (limited to 'arch/x86/kernel/idt.c')
| -rw-r--r-- | arch/x86/kernel/idt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c index ec55479e1dd1..ddb11154aeee 100644 --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -62,7 +62,7 @@ static const __initconst struct idt_data early_idts[] = { INTG(X86_TRAP_DB, asm_exc_debug), SYSG(X86_TRAP_BP, asm_exc_int3), #ifdef CONFIG_X86_32 - INTG(X86_TRAP_PF, page_fault), + INTG(X86_TRAP_PF, asm_exc_page_fault), #endif }; @@ -156,7 +156,7 @@ static const __initconst struct idt_data apic_idts[] = { * stacks work only after cpu_init(). */ static const __initconst struct idt_data early_pf_idts[] = { - INTG(X86_TRAP_PF, page_fault), + INTG(X86_TRAP_PF, asm_exc_page_fault), }; /* |