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avoid using physical accesses in user emulation 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1592 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-10-30 21:23:39 +00:00
parent 74c33bed31
commit 24741ef3de
4 changed files with 156 additions and 142 deletions
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14
exec.c
View File

@ -2152,20 +2152,6 @@ void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
}
}
/* never used */
uint32_t ldl_phys(target_phys_addr_t addr)
{
return 0;
}
void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val)
{
}
void stl_phys(target_phys_addr_t addr, uint32_t val)
{
}
#else
void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
int len, int is_write)

38
target-ppc/helper.c
View File

@ -36,6 +36,32 @@
/*****************************************************************************/
/* PowerPC MMU emulation */
#if defined(CONFIG_USER_ONLY)
int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
int is_user, int is_softmmu)
{
int exception, error_code;
if (rw == 2) {
exception = EXCP_ISI;
error_code = 0;
} else {
exception = EXCP_DSI;
error_code = 0;
if (rw)
error_code |= 0x02000000;
env->spr[SPR_DAR] = address;
env->spr[SPR_DSISR] = error_code;
}
env->exception_index = exception;
env->error_code = error_code;
return 1;
}
target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
{
return addr;
}
#else
/* Perform BAT hit & translation */
static int get_bat (CPUState *env, uint32_t *real, int *prot,
uint32_t virtual, int rw, int type)
@ -355,8 +381,8 @@ static int get_segment (CPUState *env, uint32_t *real, int *prot,
return ret;
}
int get_physical_address (CPUState *env, uint32_t *physical, int *prot,
uint32_t address, int rw, int access_type)
static int get_physical_address (CPUState *env, uint32_t *physical, int *prot,
uint32_t address, int rw, int access_type)
{
int ret;
#if 0
@ -387,12 +413,6 @@ int get_physical_address (CPUState *env, uint32_t *physical, int *prot,
return ret;
}
#if defined(CONFIG_USER_ONLY)
target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
{
return addr;
}
#else
target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
{
uint32_t phys_addr;
@ -402,7 +422,6 @@ target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
return -1;
return phys_addr;
}
#endif
/* Perform address translation */
int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
@ -523,6 +542,7 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
}
return ret;
}
#endif
/*****************************************************************************/
/* BATs management */

235
target-sparc/helper.c
View File

@ -230,7 +230,107 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
return 1;
}
}
#else
target_ulong mmu_probe(CPUState *env, target_ulong address, int mmulev)
{
target_phys_addr_t pde_ptr;
uint32_t pde;
/* Context base + context number */
pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2);
pde = ldl_phys(pde_ptr);
switch (pde & PTE_ENTRYTYPE_MASK) {
default:
case 0: /* Invalid */
case 2: /* PTE, maybe should not happen? */
case 3: /* Reserved */
return 0;
case 1: /* L1 PDE */
if (mmulev == 3)
return pde;
pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4);
pde = ldl_phys(pde_ptr);
switch (pde & PTE_ENTRYTYPE_MASK) {
default:
case 0: /* Invalid */
case 3: /* Reserved */
return 0;
case 2: /* L1 PTE */
return pde;
case 1: /* L2 PDE */
if (mmulev == 2)
return pde;
pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4);
pde = ldl_phys(pde_ptr);
switch (pde & PTE_ENTRYTYPE_MASK) {
default:
case 0: /* Invalid */
case 3: /* Reserved */
return 0;
case 2: /* L2 PTE */
return pde;
case 1: /* L3 PDE */
if (mmulev == 1)
return pde;
pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4);
pde = ldl_phys(pde_ptr);
switch (pde & PTE_ENTRYTYPE_MASK) {
default:
case 0: /* Invalid */
case 1: /* PDE, should not happen */
case 3: /* Reserved */
return 0;
case 2: /* L3 PTE */
return pde;
}
}
}
}
return 0;
}
#ifdef DEBUG_MMU
void dump_mmu(CPUState *env)
{
target_ulong va, va1, va2;
unsigned int n, m, o;
target_phys_addr_t pde_ptr, pa;
uint32_t pde;
printf("MMU dump:\n");
pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2);
pde = ldl_phys(pde_ptr);
printf("Root ptr: " TARGET_FMT_lx ", ctx: %d\n", env->mmuregs[1] << 4, env->mmuregs[2]);
for (n = 0, va = 0; n < 256; n++, va += 16 * 1024 * 1024) {
pde_ptr = mmu_probe(env, va, 2);
if (pde_ptr) {
pa = cpu_get_phys_page_debug(env, va);
printf("VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PDE: " TARGET_FMT_lx "\n", va, pa, pde_ptr);
for (m = 0, va1 = va; m < 64; m++, va1 += 256 * 1024) {
pde_ptr = mmu_probe(env, va1, 1);
if (pde_ptr) {
pa = cpu_get_phys_page_debug(env, va1);
printf(" VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PDE: " TARGET_FMT_lx "\n", va1, pa, pde_ptr);
for (o = 0, va2 = va1; o < 64; o++, va2 += 4 * 1024) {
pde_ptr = mmu_probe(env, va2, 0);
if (pde_ptr) {
pa = cpu_get_phys_page_debug(env, va2);
printf(" VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PTE: " TARGET_FMT_lx "\n", va2, pa, pde_ptr);
}
}
}
}
}
}
printf("MMU dump ends\n");
}
#endif /* DEBUG_MMU */
#else /* !TARGET_SPARC64 */
/*
* UltraSparc IIi I/DMMUs
*/
@ -382,121 +482,6 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
return 1;
}
#endif
#endif
void memcpy32(target_ulong *dst, const target_ulong *src)
{
dst[0] = src[0];
dst[1] = src[1];
dst[2] = src[2];
dst[3] = src[3];
dst[4] = src[4];
dst[5] = src[5];
dst[6] = src[6];
dst[7] = src[7];
}
#if !defined(TARGET_SPARC64)
target_ulong mmu_probe(CPUState *env, target_ulong address, int mmulev)
{
target_phys_addr_t pde_ptr;
uint32_t pde;
/* Context base + context number */
pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2);
pde = ldl_phys(pde_ptr);
switch (pde & PTE_ENTRYTYPE_MASK) {
default:
case 0: /* Invalid */
case 2: /* PTE, maybe should not happen? */
case 3: /* Reserved */
return 0;
case 1: /* L1 PDE */
if (mmulev == 3)
return pde;
pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4);
pde = ldl_phys(pde_ptr);
switch (pde & PTE_ENTRYTYPE_MASK) {
default:
case 0: /* Invalid */
case 3: /* Reserved */
return 0;
case 2: /* L1 PTE */
return pde;
case 1: /* L2 PDE */
if (mmulev == 2)
return pde;
pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4);
pde = ldl_phys(pde_ptr);
switch (pde & PTE_ENTRYTYPE_MASK) {
default:
case 0: /* Invalid */
case 3: /* Reserved */
return 0;
case 2: /* L2 PTE */
return pde;
case 1: /* L3 PDE */
if (mmulev == 1)
return pde;
pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4);
pde = ldl_phys(pde_ptr);
switch (pde & PTE_ENTRYTYPE_MASK) {
default:
case 0: /* Invalid */
case 1: /* PDE, should not happen */
case 3: /* Reserved */
return 0;
case 2: /* L3 PTE */
return pde;
}
}
}
}
return 0;
}
#ifdef DEBUG_MMU
void dump_mmu(CPUState *env)
{
target_ulong va, va1, va2;
unsigned int n, m, o;
target_phys_addr_t pde_ptr, pa;
uint32_t pde;
printf("MMU dump:\n");
pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2);
pde = ldl_phys(pde_ptr);
printf("Root ptr: " TARGET_FMT_lx ", ctx: %d\n", env->mmuregs[1] << 4, env->mmuregs[2]);
for (n = 0, va = 0; n < 256; n++, va += 16 * 1024 * 1024) {
pde_ptr = mmu_probe(env, va, 2);
if (pde_ptr) {
pa = cpu_get_phys_page_debug(env, va);
printf("VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PDE: " TARGET_FMT_lx "\n", va, pa, pde_ptr);
for (m = 0, va1 = va; m < 64; m++, va1 += 256 * 1024) {
pde_ptr = mmu_probe(env, va1, 1);
if (pde_ptr) {
pa = cpu_get_phys_page_debug(env, va1);
printf(" VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PDE: " TARGET_FMT_lx "\n", va1, pa, pde_ptr);
for (o = 0, va2 = va1; o < 64; o++, va2 += 4 * 1024) {
pde_ptr = mmu_probe(env, va2, 0);
if (pde_ptr) {
pa = cpu_get_phys_page_debug(env, va2);
printf(" VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PTE: " TARGET_FMT_lx "\n", va2, pa, pde_ptr);
}
}
}
}
}
}
printf("MMU dump ends\n");
}
#endif
#else
#ifdef DEBUG_MMU
void dump_mmu(CPUState *env)
{
@ -568,5 +553,19 @@ void dump_mmu(CPUState *env)
}
}
}
#endif
#endif
#endif /* DEBUG_MMU */
#endif /* TARGET_SPARC64 */
#endif /* !CONFIG_USER_ONLY */
void memcpy32(target_ulong *dst, const target_ulong *src)
{
dst[0] = src[0];
dst[1] = src[1];
dst[2] = src[2];
dst[3] = src[3];
dst[4] = src[4];
dst[5] = src[5];
dst[6] = src[6];
dst[7] = src[7];
}

11
target-sparc/op_helper.c
View File

@ -221,6 +221,15 @@ void do_fcmpd_fcc3 (void)
#undef FS
#endif
#if defined(CONFIG_USER_ONLY)
void helper_ld_asi(int asi, int size, int sign)
{
}
void helper_st_asi(int asi, int size, int sign)
{
}
#else
#ifndef TARGET_SPARC64
void helper_ld_asi(int asi, int size, int sign)
{
@ -727,8 +736,8 @@ void helper_st_asi(int asi, int size, int sign)
return;
}
}
#endif
#endif /* !CONFIG_USER_ONLY */
#ifndef TARGET_SPARC64
void helper_rett()