main.c File Reference

NMI Taskswitch with increasing privilege More...

#include <xtf.h>

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Functions
void	entry_NMI_task (void)
	asm ("exit_NMI_task:" "iretl;" "entry_NMI_task:;" "push $0;" "push $" STR(X86_EXC_NMI) ";" "push %es;" "push %ds;" "push %edi;" "push %esi;" "push %edx;" "push %ecx;" "push %eax;" "push %ebx;" "push %ebp;" "mov %esp, %eax;" "call do_exception;" "pop %ebp;" "pop %ebx;" "pop %eax;" "pop %ecx;" "pop %edx;" "pop %esi;" "pop %edi;" "pop %ds;" "pop %es;" "add $2*4, %esp;" "jmp exit_NMI_task;")
bool	do_unhandled_exception (struct cpu_regs *regs)
	May be implemented by a guest to provide custom exception handling. More...
static void	user_inject_nmi (void)
void	test_main (void)
	To be implemented by each test, as its entry point. More...

Variables
const char	test_title [] = "Test nmi-taskswitch-priv"
	The title of the test. More...
static uint8_t	nmi_stack [PAGE_SIZE]
static env_tss	nmi_tss

Detailed Description

NMI Taskswitch with increasing privilege

Definition in file main.c.

Function Documentation

entry_NMI_task()

void entry_NMI_task

(

void

)

asm()

asm	(	"exit_NMI_task:" "iretl;" "entry_NMI_task:;" "push $0;" "push $" STR(X86_EXC_NMI) ";" "push %es;" "push %ds;" "push %edi;" "push %esi;" "push %edx;" "push %ecx;" "push %eax;" "push %ebx;" "push %ebp;" "mov %	esp,
		%eax;" "call do_exception;" "pop %ebp;" "pop %ebx;" "pop %eax;" "pop %ecx;" "pop %edx;" "pop %esi;" "pop %edi;" "pop %ds;" "pop %es;" "add $2 *	4,
		%esp;" "jmp exit_NMI_task;"
	)

do_unhandled_exception()

bool do_unhandled_exception

(

struct cpu_regs *

regs

)

May be implemented by a guest to provide custom exception handling.

Definition at line 93 of file main.c.

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user_inject_nmi()

static void user_inject_nmi ( void  )

static

Definition at line 112 of file main.c.

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test_main()

void test_main

(

void

)

To be implemented by each test, as its entry point.

Definition at line 117 of file main.c.

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Variable Documentation

test_title

const char test_title[] = "Test nmi-taskswitch-priv"

The title of the test.

Definition at line 34 of file main.c.

nmi_stack

uint8_t nmi_stack[PAGE_SIZE]

static

Definition at line 36 of file main.c.

nmi_tss

env_tss nmi_tss

static

Initial value:

=
{
    .eip    = _u(entry_NMI_task),
    .cs     = __KERN_CS,
    .eflags = X86_EFLAGS_MBS,
    .esp    = _u(nmi_stack + PAGE_SIZE),
    .ss     = __KERN_DS,
 
    .ds     = __USER_DS,
    .es     = __USER_DS,
    .fs     = __USER_DS,
    .gs     = __USER_DS,
 
    .cr3    = _u(cr3_target),
    .iopb   = X86_TSS_INVALID_IO_BITMAP,
}

Definition at line 76 of file main.c.