From 520d030852b4c9babfce9a79d8b5320b6b5545e6 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Mon, 7 Sep 2020 15:16:08 +0200 Subject: x86/smpboot: Load TSS and getcpu GDT entry before loading IDT The IDT on 64-bit contains vectors which use paranoid_entry() and/or IST stacks. To make these vectors work, the TSS and the getcpu GDT entry need to be set up before the IDT is loaded. Signed-off-by: Joerg Roedel Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200907131613.12703-68-joro@8bytes.org --- arch/x86/include/asm/processor.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/x86/include/asm/processor.h') diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 97143d87994c..615dd440bed8 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -696,6 +696,7 @@ extern void load_direct_gdt(int); extern void load_fixmap_gdt(int); extern void load_percpu_segment(int); extern void cpu_init(void); +extern void cpu_init_exception_handling(void); extern void cr4_init(void); static inline unsigned long get_debugctlmsr(void) -- cgit v1.2.3