Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index b25e633..7f72000 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -6,93 +6,22 @@
#include <linux/kprobes.h>
#include <asm/debugreg.h>
+#include <asm/idtentry.h>
#include <asm/siginfo.h> /* TRAP_TRACE, ... */
+#include <asm/trap_pf.h>
-#define dotraplinkage __visible
-
-asmlinkage void divide_error(void);
-asmlinkage void debug(void);
-asmlinkage void nmi(void);
-asmlinkage void int3(void);
-asmlinkage void overflow(void);
-asmlinkage void bounds(void);
-asmlinkage void invalid_op(void);
-asmlinkage void device_not_available(void);
#ifdef CONFIG_X86_64
-asmlinkage void double_fault(void);
-#endif
-asmlinkage void coprocessor_segment_overrun(void);
-asmlinkage void invalid_TSS(void);
-asmlinkage void segment_not_present(void);
-asmlinkage void stack_segment(void);
-asmlinkage void general_protection(void);
-asmlinkage void page_fault(void);
-asmlinkage void async_page_fault(void);
-asmlinkage void spurious_interrupt_bug(void);
-asmlinkage void coprocessor_error(void);
-asmlinkage void alignment_check(void);
-#ifdef CONFIG_X86_MCE
-asmlinkage void machine_check(void);
-#endif /* CONFIG_X86_MCE */
-asmlinkage void simd_coprocessor_error(void);
-
-#if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV)
-asmlinkage void xen_divide_error(void);
-asmlinkage void xen_xennmi(void);
-asmlinkage void xen_xendebug(void);
-asmlinkage void xen_int3(void);
-asmlinkage void xen_overflow(void);
-asmlinkage void xen_bounds(void);
-asmlinkage void xen_invalid_op(void);
-asmlinkage void xen_device_not_available(void);
-asmlinkage void xen_double_fault(void);
-asmlinkage void xen_coprocessor_segment_overrun(void);
-asmlinkage void xen_invalid_TSS(void);
-asmlinkage void xen_segment_not_present(void);
-asmlinkage void xen_stack_segment(void);
-asmlinkage void xen_general_protection(void);
-asmlinkage void xen_page_fault(void);
-asmlinkage void xen_spurious_interrupt_bug(void);
-asmlinkage void xen_coprocessor_error(void);
-asmlinkage void xen_alignment_check(void);
-#ifdef CONFIG_X86_MCE
-asmlinkage void xen_machine_check(void);
-#endif /* CONFIG_X86_MCE */
-asmlinkage void xen_simd_coprocessor_error(void);
-#endif
-
-dotraplinkage void do_divide_error(struct pt_regs *regs, long error_code);
-dotraplinkage void do_debug(struct pt_regs *regs, long error_code);
-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_overflow(struct pt_regs *regs, long error_code);
-dotraplinkage void do_bounds(struct pt_regs *regs, long error_code);
-dotraplinkage void do_invalid_op(struct pt_regs *regs, long error_code);
-dotraplinkage void do_device_not_available(struct pt_regs *regs, long error_code);
-dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *regs, long error_code);
-dotraplinkage void do_invalid_TSS(struct pt_regs *regs, long error_code);
-dotraplinkage void do_segment_not_present(struct pt_regs *regs, long error_code);
-dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code);
-#ifdef CONFIG_X86_64
-dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code, unsigned long address);
asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
asmlinkage __visible notrace
struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s);
void __init trap_init(void);
+asmlinkage __visible noinstr struct pt_regs *vc_switch_off_ist(struct pt_regs *eregs);
#endif
-dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code);
-dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
-dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *regs, long error_code);
-dotraplinkage void do_coprocessor_error(struct pt_regs *regs, long error_code);
-dotraplinkage void do_alignment_check(struct pt_regs *regs, long error_code);
-#ifdef CONFIG_X86_MCE
-dotraplinkage void do_machine_check(struct pt_regs *regs, long error_code);
+
+#ifdef CONFIG_X86_F00F_BUG
+/* For handling the FOOF bug */
+void handle_invalid_op(struct pt_regs *regs);
#endif
-dotraplinkage void do_simd_coprocessor_error(struct pt_regs *regs, long error_code);
-#ifdef CONFIG_X86_32
-dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code);
-#endif
-dotraplinkage void do_mce(struct pt_regs *regs, long error_code);
static inline int get_si_code(unsigned long condition)
{
@@ -107,21 +36,8 @@
extern int panic_on_unrecovered_nmi;
void math_emulate(struct math_emu_info *);
-#ifndef CONFIG_X86_32
-asmlinkage void smp_thermal_interrupt(struct pt_regs *regs);
-asmlinkage void smp_threshold_interrupt(struct pt_regs *regs);
-asmlinkage void smp_deferred_error_interrupt(struct pt_regs *regs);
-#endif
-void smp_apic_timer_interrupt(struct pt_regs *regs);
-void smp_spurious_interrupt(struct pt_regs *regs);
-void smp_error_interrupt(struct pt_regs *regs);
-asmlinkage void smp_irq_move_cleanup_interrupt(void);
-
-extern void ist_enter(struct pt_regs *regs);
-extern void ist_exit(struct pt_regs *regs);
-extern void ist_begin_non_atomic(struct pt_regs *regs);
-extern void ist_end_non_atomic(void);
+bool fault_in_kernel_space(unsigned long address);
#ifdef CONFIG_VMAP_STACK
void __noreturn handle_stack_overflow(const char *message,
@@ -129,47 +45,4 @@
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 */