@@ -11,16 +11,21 @@
#ifndef CONFIG_USER_ONLY
+uint32_t arm_ldl_ptw(CPUState *cs, hwaddr addr, bool is_secure,
+ ARMMMUIdx mmu_idx, ARMMMUFaultInfo *fi);
+uint64_t arm_ldq_ptw(CPUState *cs, hwaddr addr, bool is_secure,
+ ARMMMUIdx mmu_idx, ARMMMUFaultInfo *fi);
+
bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx);
bool regime_translation_disabled(CPUARMState *env, ARMMMUIdx mmu_idx);
ARMCacheAttrs combine_cacheattrs(CPUARMState *env,
ARMCacheAttrs s1, ARMCacheAttrs s2);
-bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
- MMUAccessType access_type, ARMMMUIdx mmu_idx,
- hwaddr *phys_ptr, int *prot,
- target_ulong *page_size,
- ARMMMUFaultInfo *fi);
+bool get_level1_table_address(CPUARMState *env, ARMMMUIdx mmu_idx,
+ uint32_t *table, uint32_t address);
+int ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx,
+ int ap, int domain_prot);
+
bool get_phys_addr_pmsav5(CPUARMState *env, uint32_t address,
MMUAccessType access_type, ARMMMUIdx mmu_idx,
hwaddr *phys_ptr, int *prot,
@@ -10542,8 +10542,7 @@ bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx)
* @ap: The 3-bit access permissions (AP[2:0])
* @domain_prot: The 2-bit domain access permissions
*/
-static inline int ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx,
- int ap, int domain_prot)
+int ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx, int ap, int domain_prot)
{
bool is_user = regime_is_user(env, mmu_idx);
@@ -10746,8 +10745,8 @@ static int get_S1prot(CPUARMState *env, ARMMMUIdx mmu_idx, bool is_aa64,
return prot_rw | PAGE_EXEC;
}
-static bool get_level1_table_address(CPUARMState *env, ARMMMUIdx mmu_idx,
- uint32_t *table, uint32_t address)
+bool get_level1_table_address(CPUARMState *env, ARMMMUIdx mmu_idx,
+ uint32_t *table, uint32_t address)
{
/* Note that we can only get here for an AArch32 PL0/PL1 lookup */
TCR *tcr = regime_tcr(env, mmu_idx);
@@ -10846,8 +10845,8 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
}
/* All loads done in the course of a page table walk go through here. */
-static uint32_t arm_ldl_ptw(CPUState *cs, hwaddr addr, bool is_secure,
- ARMMMUIdx mmu_idx, ARMMMUFaultInfo *fi)
+uint32_t arm_ldl_ptw(CPUState *cs, hwaddr addr, bool is_secure,
+ ARMMMUIdx mmu_idx, ARMMMUFaultInfo *fi)
{
ARMCPU *cpu = ARM_CPU(cs);
CPUARMState *env = &cpu->env;
@@ -10875,8 +10874,8 @@ static uint32_t arm_ldl_ptw(CPUState *cs, hwaddr addr, bool is_secure,
return 0;
}
-static uint64_t arm_ldq_ptw(CPUState *cs, hwaddr addr, bool is_secure,
- ARMMMUIdx mmu_idx, ARMMMUFaultInfo *fi)
+uint64_t arm_ldq_ptw(CPUState *cs, hwaddr addr, bool is_secure,
+ ARMMMUIdx mmu_idx, ARMMMUFaultInfo *fi)
{
ARMCPU *cpu = ARM_CPU(cs);
CPUARMState *env = &cpu->env;
@@ -10904,128 +10903,6 @@ static uint64_t arm_ldq_ptw(CPUState *cs, hwaddr addr, bool is_secure,
return 0;
}
-bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
- MMUAccessType access_type, ARMMMUIdx mmu_idx,
- hwaddr *phys_ptr, int *prot,
- target_ulong *page_size,
- ARMMMUFaultInfo *fi)
-{
- CPUState *cs = env_cpu(env);
- int level = 1;
- uint32_t table;
- uint32_t desc;
- int type;
- int ap;
- int domain = 0;
- int domain_prot;
- hwaddr phys_addr;
- uint32_t dacr;
-
- /* Pagetable walk. */
- /* Lookup l1 descriptor. */
- if (!get_level1_table_address(env, mmu_idx, &table, address)) {
- /* Section translation fault if page walk is disabled by PD0 or PD1 */
- fi->type = ARMFault_Translation;
- goto do_fault;
- }
- desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx),
- mmu_idx, fi);
- if (fi->type != ARMFault_None) {
- goto do_fault;
- }
- type = (desc & 3);
- domain = (desc >> 5) & 0x0f;
- if (regime_el(env, mmu_idx) == 1) {
- dacr = env->cp15.dacr_ns;
- } else {
- dacr = env->cp15.dacr_s;
- }
- domain_prot = (dacr >> (domain * 2)) & 3;
- if (type == 0) {
- /* Section translation fault. */
- fi->type = ARMFault_Translation;
- goto do_fault;
- }
- if (type != 2) {
- level = 2;
- }
- if (domain_prot == 0 || domain_prot == 2) {
- fi->type = ARMFault_Domain;
- goto do_fault;
- }
- if (type == 2) {
- /* 1Mb section. */
- phys_addr = (desc & 0xfff00000) | (address & 0x000fffff);
- ap = (desc >> 10) & 3;
- *page_size = 1024 * 1024;
- } else {
- /* Lookup l2 entry. */
- if (type == 1) {
- /* Coarse pagetable. */
- table = (desc & 0xfffffc00) | ((address >> 10) & 0x3fc);
- } else {
- /* Fine pagetable. */
- table = (desc & 0xfffff000) | ((address >> 8) & 0xffc);
- }
- desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx),
- mmu_idx, fi);
- if (fi->type != ARMFault_None) {
- goto do_fault;
- }
- switch (desc & 3) {
- case 0: /* Page translation fault. */
- fi->type = ARMFault_Translation;
- goto do_fault;
- case 1: /* 64k page. */
- phys_addr = (desc & 0xffff0000) | (address & 0xffff);
- ap = (desc >> (4 + ((address >> 13) & 6))) & 3;
- *page_size = 0x10000;
- break;
- case 2: /* 4k page. */
- phys_addr = (desc & 0xfffff000) | (address & 0xfff);
- ap = (desc >> (4 + ((address >> 9) & 6))) & 3;
- *page_size = 0x1000;
- break;
- case 3: /* 1k page, or ARMv6/XScale "extended small (4k) page" */
- if (type == 1) {
- /* ARMv6/XScale extended small page format */
- if (arm_feature(env, ARM_FEATURE_XSCALE)
- || arm_feature(env, ARM_FEATURE_V6)) {
- phys_addr = (desc & 0xfffff000) | (address & 0xfff);
- *page_size = 0x1000;
- } else {
- /* UNPREDICTABLE in ARMv5; we choose to take a
- * page translation fault.
- */
- fi->type = ARMFault_Translation;
- goto do_fault;
- }
- } else {
- phys_addr = (desc & 0xfffffc00) | (address & 0x3ff);
- *page_size = 0x400;
- }
- ap = (desc >> 4) & 3;
- break;
- default:
- /* Never happens, but compiler isn't smart enough to tell. */
- g_assert_not_reached();
- }
- }
- *prot = ap_to_rw_prot(env, mmu_idx, ap, domain_prot);
- *prot |= *prot ? PAGE_EXEC : 0;
- if (!(*prot & (1 << access_type))) {
- /* Access permission fault. */
- fi->type = ARMFault_Permission;
- goto do_fault;
- }
- *phys_ptr = phys_addr;
- return false;
-do_fault:
- fi->domain = domain;
- fi->level = level;
- return true;
-}
-
bool get_phys_addr_v6(CPUARMState *env, uint32_t address,
MMUAccessType access_type, ARMMMUIdx mmu_idx,
hwaddr *phys_ptr, MemTxAttrs *attrs, int *prot,
@@ -13,6 +13,129 @@
#include "ptw.h"
+static bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
+ MMUAccessType access_type, ARMMMUIdx mmu_idx,
+ hwaddr *phys_ptr, int *prot,
+ target_ulong *page_size,
+ ARMMMUFaultInfo *fi)
+{
+ CPUState *cs = env_cpu(env);
+ int level = 1;
+ uint32_t table;
+ uint32_t desc;
+ int type;
+ int ap;
+ int domain = 0;
+ int domain_prot;
+ hwaddr phys_addr;
+ uint32_t dacr;
+
+ /* Pagetable walk. */
+ /* Lookup l1 descriptor. */
+ if (!get_level1_table_address(env, mmu_idx, &table, address)) {
+ /* Section translation fault if page walk is disabled by PD0 or PD1 */
+ fi->type = ARMFault_Translation;
+ goto do_fault;
+ }
+ desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx),
+ mmu_idx, fi);
+ if (fi->type != ARMFault_None) {
+ goto do_fault;
+ }
+ type = (desc & 3);
+ domain = (desc >> 5) & 0x0f;
+ if (regime_el(env, mmu_idx) == 1) {
+ dacr = env->cp15.dacr_ns;
+ } else {
+ dacr = env->cp15.dacr_s;
+ }
+ domain_prot = (dacr >> (domain * 2)) & 3;
+ if (type == 0) {
+ /* Section translation fault. */
+ fi->type = ARMFault_Translation;
+ goto do_fault;
+ }
+ if (type != 2) {
+ level = 2;
+ }
+ if (domain_prot == 0 || domain_prot == 2) {
+ fi->type = ARMFault_Domain;
+ goto do_fault;
+ }
+ if (type == 2) {
+ /* 1Mb section. */
+ phys_addr = (desc & 0xfff00000) | (address & 0x000fffff);
+ ap = (desc >> 10) & 3;
+ *page_size = 1024 * 1024;
+ } else {
+ /* Lookup l2 entry. */
+ if (type == 1) {
+ /* Coarse pagetable. */
+ table = (desc & 0xfffffc00) | ((address >> 10) & 0x3fc);
+ } else {
+ /* Fine pagetable. */
+ table = (desc & 0xfffff000) | ((address >> 8) & 0xffc);
+ }
+ desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx),
+ mmu_idx, fi);
+ if (fi->type != ARMFault_None) {
+ goto do_fault;
+ }
+ switch (desc & 3) {
+ case 0: /* Page translation fault. */
+ fi->type = ARMFault_Translation;
+ goto do_fault;
+ case 1: /* 64k page. */
+ phys_addr = (desc & 0xffff0000) | (address & 0xffff);
+ ap = (desc >> (4 + ((address >> 13) & 6))) & 3;
+ *page_size = 0x10000;
+ break;
+ case 2: /* 4k page. */
+ phys_addr = (desc & 0xfffff000) | (address & 0xfff);
+ ap = (desc >> (4 + ((address >> 9) & 6))) & 3;
+ *page_size = 0x1000;
+ break;
+ case 3: /* 1k page, or ARMv6/XScale "extended small (4k) page" */
+ if (type == 1) {
+ /* ARMv6/XScale extended small page format */
+ if (arm_feature(env, ARM_FEATURE_XSCALE)
+ || arm_feature(env, ARM_FEATURE_V6)) {
+ phys_addr = (desc & 0xfffff000) | (address & 0xfff);
+ *page_size = 0x1000;
+ } else {
+ /*
+ * UNPREDICTABLE in ARMv5; we choose to take a
+ * page translation fault.
+ */
+ fi->type = ARMFault_Translation;
+ goto do_fault;
+ }
+ } else {
+ phys_addr = (desc & 0xfffffc00) | (address & 0x3ff);
+ *page_size = 0x400;
+ }
+ ap = (desc >> 4) & 3;
+ break;
+ default:
+ /* Never happens, but compiler isn't smart enough to tell. */
+ g_assert_not_reached();
+ }
+ }
+ *prot = ap_to_rw_prot(env, mmu_idx, ap, domain_prot);
+ *prot |= *prot ? PAGE_EXEC : 0;
+ if (!(*prot & (1 << access_type))) {
+ /* Access permission fault. */
+ fi->type = ARMFault_Permission;
+ goto do_fault;
+ }
+ *phys_ptr = phys_addr;
+ return false;
+do_fault:
+ fi->domain = domain;
+ fi->level = level;
+ return true;
+}
+
/**
* get_phys_addr - get the physical address for this virtual address
*
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/arm/ptw.h | 15 +++-- target/arm/helper.c | 137 +++----------------------------------------- target/arm/ptw.c | 123 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 140 insertions(+), 135 deletions(-)