Xen Test Framework
Functions | Variables
main.c File Reference

XSA-204 More...

#include <xtf.h>
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Functions

void entry_SYSCALL_64 (void)
 
 asm (".align 8;" "entry_SYSCALL_64:" "1: and $~" STR(X86_EFLAGS_TF) ", %r11;" "sysretq;")
 
static unsigned long user_force_syscall (void)
 
void test_main (void)
 To be implemented by each test, as its entry point. More...
 

Variables

const char test_title [] = "XSA-204 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...
 

Detailed Description

XSA-204

Definition in file main.c.

Function Documentation

◆ entry_SYSCALL_64()

void entry_SYSCALL_64 ( void  )
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◆ asm()

asm ( ".align 8;" "entry_SYSCALL_64:" "1: and $~" STR(X86_EFLAGS_TF) "  ,
%r11;" "sysretq;"   
)

◆ user_force_syscall()

static unsigned long user_force_syscall ( void  )
static

Definition at line 35 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 50 of file main.c.

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Variable Documentation

◆ test_title

const char test_title[] = "XSA-204 PoC"

The title of the test.

Definition at line 24 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 25 of file main.c.