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adde TLB dump 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1069 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-09-18 19:32:46 +00:00
parent e2731add29
commit b86bda5bb1
1 changed files with 117 additions and 0 deletions
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117
monitor.c
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@ -695,6 +695,117 @@ static void do_system_reset(void)
qemu_system_reset_request();
}
#if defined(TARGET_I386)
static void print_pte(uint32_t addr, uint32_t pte, uint32_t mask)
{
term_printf("%08x: %08x %c%c%c%c%c%c%c%c\n",
addr,
pte & mask,
pte & PG_GLOBAL_MASK ? 'G' : '-',
pte & PG_PSE_MASK ? 'P' : '-',
pte & PG_DIRTY_MASK ? 'D' : '-',
pte & PG_ACCESSED_MASK ? 'A' : '-',
pte & PG_PCD_MASK ? 'C' : '-',
pte & PG_PWT_MASK ? 'T' : '-',
pte & PG_USER_MASK ? 'U' : '-',
pte & PG_RW_MASK ? 'W' : '-');
}
static void tlb_info(void)
{
CPUState *env = cpu_single_env;
int l1, l2;
uint32_t pgd, pde, pte;
if (!(env->cr[0] & CR0_PG_MASK)) {
term_printf("PG disabled\n");
return;
}
pgd = env->cr[3] & ~0xfff;
for(l1 = 0; l1 < 1024; l1++) {
cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
pde = le32_to_cpu(pde);
if (pde & PG_PRESENT_MASK) {
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
print_pte((l1 << 22), pde, ~((1 << 20) - 1));
} else {
for(l2 = 0; l2 < 1024; l2++) {
cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
(uint8_t *)&pte, 4);
pte = le32_to_cpu(pte);
if (pte & PG_PRESENT_MASK) {
print_pte((l1 << 22) + (l2 << 12),
pte & ~PG_PSE_MASK,
~0xfff);
}
}
}
}
}
}
static void mem_print(uint32_t *pstart, int *plast_prot,
uint32_t end, int prot)
{
if (prot != *plast_prot) {
if (*pstart != -1) {
term_printf("%08x-%08x %08x %c%c%c\n",
*pstart, end, end - *pstart,
prot & PG_USER_MASK ? 'u' : '-',
'r',
prot & PG_RW_MASK ? 'w' : '-');
}
if (prot != 0)
*pstart = end;
else
*pstart = -1;
*plast_prot = prot;
}
}
static void mem_info(void)
{
CPUState *env = cpu_single_env;
int l1, l2, prot, last_prot;
uint32_t pgd, pde, pte, start, end;
if (!(env->cr[0] & CR0_PG_MASK)) {
term_printf("PG disabled\n");
return;
}
pgd = env->cr[3] & ~0xfff;
last_prot = 0;
start = -1;
for(l1 = 0; l1 < 1024; l1++) {
cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
pde = le32_to_cpu(pde);
end = l1 << 22;
if (pde & PG_PRESENT_MASK) {
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
mem_print(&start, &last_prot, end, prot);
} else {
for(l2 = 0; l2 < 1024; l2++) {
cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
(uint8_t *)&pte, 4);
pte = le32_to_cpu(pte);
end = (l1 << 22) + (l2 << 12);
if (pte & PG_PRESENT_MASK) {
prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
} else {
prot = 0;
}
mem_print(&start, &last_prot, end, prot);
}
}
} else {
prot = 0;
mem_print(&start, &last_prot, end, prot);
}
}
}
#endif
static term_cmd_t term_cmds[] = {
{ "help|?", "s?", do_help,
"[cmd]", "show the help" },
@ -755,6 +866,12 @@ static term_cmd_t info_cmds[] = {
"", "show i8259 (PIC) state", },
{ "pci", "", pci_info,
"", "show PCI info", },
#if defined(TARGET_I386)
{ "tlb", "", tlb_info,
"", "show virtual to physical memory mappings", },
{ "mem", "", mem_info,
"", "show the active virtual memory mappings", },
#endif
{ NULL, NULL, },
};