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Update gate-descriptor initialization 2/2

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Removed backslashes in links in front of underscores as they are
unnecessary.
Fixes problems of commit: 350c9715ee
This commit is contained in:
Sebastian Fricke 2020-04-23 17:26:36 +02:00
parent 350c9715ee
commit 2dcb99f7f7
1 changed files with 3 additions and 3 deletions
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6
Interrupts/linux-interrupts-1.md
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@ -237,7 +237,7 @@ extern gate_desc idt_table[];
``` ```
where `gate_struct` is defined as: where `gate_struct` is defined as:
[/arch/x86/include/asm/desc\_defs.h](https://github.com/torvalds/linux/blob/master/arch/x86/include/asm/desc_defs.h) [/arch/x86/include/asm/desc_defs.h](https://github.com/torvalds/linux/blob/master/arch/x86/include/asm/desc_defs.h)
```C ```C
struct gate_struct { struct gate_struct {
@ -360,7 +360,7 @@ DECLARE_PER_CPU(unsigned int, irq_count);
DECLARE_PER_CPU(struct irq_stack *, softirq_stack_ptr); DECLARE_PER_CPU(struct irq_stack *, softirq_stack_ptr);
``` ```
The first and third are the stack pointers for hardware and software interrupts. It is obvious from the name of the variables, that these point to the top of stacks. The second - `irq_count` is used to check if a CPU is already on an interrupt stack or not. Initialization of the `hardirq_stack_ptr` is located in the `irq_init_percpu_irqstack` function in [arch/x86/kernel/irq\_64.c](https://github.com/torvalds/linux/blob/master/arch/x86/kernel/irq_64.c): The first and third are the stack pointers for hardware and software interrupts. It is obvious from the name of the variables, that these point to the top of stacks. The second - `irq_count` is used to check if a CPU is already on an interrupt stack or not. Initialization of the `hardirq_stack_ptr` is located in the `irq_init_percpu_irqstack` function in [arch/x86/kernel/irq_64.c](https://github.com/torvalds/linux/blob/master/arch/x86/kernel/irq_64.c):
```C ```C
int irq_init_percpu_irqstack(unsigned int cpu) int irq_init_percpu_irqstack(unsigned int cpu)
@ -433,7 +433,7 @@ static const __initconst struct idt_data def_idts[] = {
INTG(X86_TRAP_DF, double_fault), INTG(X86_TRAP_DF, double_fault),
``` ```
where `nmi` and `double_fault` are entry points created at [arch/x86/kernel/entry\_64.S](https://github.com/torvalds/linux/blob/master/arch/x86/entry/entry_64.S): where `nmi` and `double_fault` are entry points created at [arch/x86/kernel/entry_64.S](https://github.com/torvalds/linux/blob/master/arch/x86/entry/entry_64.S):
```assembly ```assembly
idtentry double_fault do_double_fault has_error_code=1 paranoid=2 read_cr2=1 idtentry double_fault do_double_fault has_error_code=1 paranoid=2 read_cr2=1