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target/arm: Convert get_phys_addr_v5() to not return FSC values

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Make get_phys_addr_v5() return a fault type in the ARMMMUFaultInfo
structure, which we convert to the FSC at the callsite.

Backports commit f989983e8dc9be6bc3468c6dbe46fcb1501a740c from qemu
This commit is contained in:
Peter Maydell 2018-03-05 13:35:54 -05:00 committed by Lioncash
parent 457e4f35ac
commit 4ccf3c3927
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 18 additions and 15 deletions
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33
qemu/target/arm/helper.c
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@ -7532,11 +7532,11 @@ static uint64_t arm_ldq_ptw(CPUState *cs, hwaddr addr, bool is_secure,
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, uint32_t *fsr,
target_ulong *page_size,
ARMMMUFaultInfo *fi)
{
CPUState *cs = CPU(arm_env_get_cpu(env));
int code;
int level = 1;
uint32_t table;
uint32_t desc;
int type;
@ -7550,7 +7550,7 @@ static bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
/* 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 */
code = 5;
fi->type = ARMFault_Translation;
goto do_fault;
}
desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx),
@ -7565,21 +7565,20 @@ static bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
domain_prot = (dacr >> (domain * 2)) & 3;
if (type == 0) {
/* Section translation fault. */
code = 5;
fi->type = ARMFault_Translation;
goto do_fault;
}
if (type != 2) {
level = 2;
}
if (domain_prot == 0 || domain_prot == 2) {
if (type == 2)
code = 9; /* Section domain fault. */
else
code = 11; /* Page domain fault. */
fi->type = ARMFault_Domain;
goto do_fault;
}
if (type == 2) {
/* 1Mb section. */
phys_addr = (desc & 0xfff00000) | (address & 0x000fffff);
ap = (desc >> 10) & 3;
code = 13;
*page_size = 1024 * 1024;
} else {
/* Lookup l2 entry. */
@ -7594,7 +7593,7 @@ static bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
mmu_idx, fi);
switch (desc & 3) {
case 0: /* Page translation fault. */
code = 7;
fi->type = ARMFault_Translation;
goto do_fault;
case 1: /* 64k page. */
phys_addr = (desc & 0xffff0000) | (address & 0xffff);
@ -7617,7 +7616,7 @@ static bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
/* UNPREDICTABLE in ARMv5; we choose to take a
* page translation fault.
*/
code = 7;
fi->type = ARMFault_Translation;
goto do_fault;
}
} else {
@ -7630,18 +7629,19 @@ static bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
/* Never happens, but compiler isn't smart enough to tell. */
abort();
}
code = 15;
}
*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:
*fsr = code | (domain << 4);
fi->domain = domain;
fi->level = level;
return true;
}
@ -9045,8 +9045,11 @@ static bool get_phys_addr(CPUARMState *env, target_ulong address,
return get_phys_addr_v6(env, address, access_type, mmu_idx, phys_ptr,
attrs, prot, page_size, fsr, fi);
} else {
return get_phys_addr_v5(env, address, access_type, mmu_idx, phys_ptr,
prot, page_size, fsr, fi);
bool ret = get_phys_addr_v5(env, address, access_type, mmu_idx,
phys_ptr, prot, page_size, fi);
*fsr = arm_fi_to_sfsc(fi);
return ret;
}
}