#include <xtf.h>

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Functions
void	custom_doublefault_handler (void)

	asm (".align 16;" "custom_doublefault_handler:" "mov $(1 << 31 \| " STR(X86_EXC_DF) " << 16), %eax;" "iretq;")

static unsigned long	compat_userspace (void)

void	test_main (void)
	To be implemented by each test, as its entry point. More...

Variables
const char	test_title [] = "XSA-196 PoC"
	The title of the test. More...

bool	test_needs_fep = true
	Boolean indicating whether the test is entirely predicated on the available of the Force Emulation Prefix. More...

static const struct xtf_idte	idte

Detailed Description

XSA-196

Definition in file main.c.

Function Documentation

◆ custom_doublefault_handler()

void custom_doublefault_handler ( void )

◆ asm()

asm	(	".align 16;" "custom_doublefault_handler:" "mov $	1 << 31 \| " STR(X86_EXC_DF) " << 16,
		%eax;" "iretq;"
	)

◆ compat_userspace()

static unsigned long compat_userspace ( void )

static

Definition at line 44 of file main.c.

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◆ test_main()

void test_main ( void )

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

Todo:: Implement better command line infrastructure, but this will do for now.

At the time of writing, Xen doesn't correctly handle invlpg while running in shadow mode on AMD Gen1 hardware lacking decode assistance. For this test, we simply care that Xen doesn't crash.

Definition at line 74 of file main.c.

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Variable Documentation

◆ test_title

const char test_title[] = "XSA-196 PoC"

The title of the test.

Definition at line 27 of file main.c.

◆ test_needs_fep

bool test_needs_fep = true

Boolean indicating whether the test is entirely predicated on the available of the Force Emulation Prefix.

Definition at line 29 of file main.c.

◆ idte

const struct xtf_idte idte