void test_cpl(void)
{
int cpl;
change_cpl(1);
cpl = get_cpl();
ASSERT(cpl == 1);
change_cpl(3);
cpl = get_cpl();
ASSERT(cpl == 3);
debug("changing CPL seems to work\n\n");
sleep(1);
}
void get_system_information(void)
{
cprintf("Getting system information: ");
cprintf("CPU...");
_cputype=get_cpu_type();_cpuvendor=get_cpu_id();
cprintf("\b\b\b\b\b\bFPU...");
_fputype=get_fpu_type();_fpuinfo=get_fpu_info();
cprintf("\b\b\b\b\b\bSYS...");
_systype=get_sys_type();_codecpl=get_cpl();_codeiopl=get_iopl();
_extendertype=get_extender_type();
_dpmiflags=get_dpmi_flags();
if((_dpmiflags&0x02)==0) _modetype=1; else _modetype=0;
cprintf("\b\b\b\b\b\bMEM...");
_totalmemsize=get_total_size();
_lomemsize=get_lomem_size();
_himemsize=get_himem_size();
printf("\b\b\b\b\b\bDone. \n");
}
void trap_test(void)
{
test_cpl();
#ifdef USER_DEBUG
/* If the #gpf handler stuff is really broken, you might want to
start out by manually building the trap frames, and trapping
back to user space.
*/
{
u_int handler13 = (u_int)&exc_13_handler;
u_int handler14 = (u_int)&exc_14_handler;
VMSTATE->cr[0] |= 1;
lmsw_test(handler13);
lidt_test(handler13);
hlt_test(handler13);
lgdt_test(handler13);
clts_test(handler13);
cr3_test(handler13); /* set a new page table */
setup_pt();
add_page_test(handler14); /* add an entry to it */
change_page_test(handler14); /* change an entry in it */
}
#else
/* If the #gpf handlers aren't fundamentally broken, test this
way.
*/
{
Bit32u tmp, tmp2;
change_cpl(1);
debug("Simulating guest running at CPL %d\n\n", get_cpl());
sleep(1);
asm("in $0x80, %al");
asm("mov $0x80, %dx");
asm(".byte 0xec");
debug("trivial inb seems to work\n\n");
sleep(1);
asm("hlt");
debug("hlt seems to work\n\n");
sleep(1);
/* IF */
asm("pushf");
asm("popl %0"::"m" (tmp));
asm("cli");
asm("pushf");
asm("popl %0"::"m" (tmp2));
#if 0 /* only for V86 :( */
ASSERT((tmp2 & IF_MASK) == 0);
ASSERT(((tmp & ~IF_MASK) & ~0xff) == (tmp2 & ~0xff));
#endif
asm("sti");
asm("pushf");
asm("popl %0"::"m" (tmp2));
#if 0 /* only for V86 :( */
ASSERT((tmp2 & IF_MASK));
ASSERT((tmp & ~0xff) == (tmp2 & ~0xff));
#endif
debug("cli/sti seem to work\n\n");
sleep(1);
/* test move to/from segment registers */
/* test move to/from control registers */
VMSTATE->cr[0] = 0x12456789;
VMSTATE->cr[2] = 0x1da53799;
VMSTATE->cr[3] = 0x12416189;
VMSTATE->cr[4] = 0x1dd5378a;
asm("mov %cr0, %ebx");
asm("mov %%ebx, %0"::"m" (tmp));
ASSERT(tmp == VMSTATE->cr[0]);
asm("mov %cr2, %ebx");
asm("mov %%ebx, %0"::"m" (tmp));
ASSERT(tmp == VMSTATE->cr[2]);
asm("mov %cr3, %ebx");
asm("mov %%ebx, %0"::"m" (tmp));
ASSERT(tmp == VMSTATE->cr[3]);
asm("mov %cr4, %ebx");
asm("mov %%ebx, %0"::"m" (tmp));
ASSERT(tmp == VMSTATE->cr[4]);
debug("move from CR3 seems to work\n\n");
change_cpl(3);
}
#endif
}
