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target/arm: Move S1_ptw_translate outside arm_ld[lq]_ptw 

Separate S1 translation from the actual lookup.
Will enable lpae hardware updates.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221024051851.3074715-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2022-10-24 15:18:42 +10:00 committed by Peter Maydell
parent 8973922783
commit 93e5b3a6f9
1 changed files with 22 additions and 19 deletions
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41
target/arm/ptw.c
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@ -300,18 +300,12 @@ static bool S1_ptw_translate(CPUARMState *env, S1Translate *ptw,
}
/* All loads done in the course of a page table walk go through here. */
static uint32_t arm_ldl_ptw(CPUARMState *env, S1Translate *ptw, hwaddr addr,
static uint32_t arm_ldl_ptw(CPUARMState *env, S1Translate *ptw,
ARMMMUFaultInfo *fi)
{
CPUState *cs = env_cpu(env);
uint32_t data;
if (!S1_ptw_translate(env, ptw, addr, fi)) {
/* Failure. */
assert(fi->s1ptw);
return 0;
}
if (likely(ptw->out_host)) {
/* Page tables are in RAM, and we have the host address. */
if (ptw->out_be) {
@ -339,18 +333,12 @@ static uint32_t arm_ldl_ptw(CPUARMState *env, S1Translate *ptw, hwaddr addr,
return data;
}
static uint64_t arm_ldq_ptw(CPUARMState *env, S1Translate *ptw, hwaddr addr,
static uint64_t arm_ldq_ptw(CPUARMState *env, S1Translate *ptw,
ARMMMUFaultInfo *fi)
{
CPUState *cs = env_cpu(env);
uint64_t data;
if (!S1_ptw_translate(env, ptw, addr, fi)) {
/* Failure. */
assert(fi->s1ptw);
return 0;
}
if (likely(ptw->out_host)) {
/* Page tables are in RAM, and we have the host address. */
if (ptw->out_be) {
@ -507,7 +495,10 @@ static bool get_phys_addr_v5(CPUARMState *env, S1Translate *ptw,
fi->type = ARMFault_Translation;
goto do_fault;
}
desc = arm_ldl_ptw(env, ptw, table, fi);
if (!S1_ptw_translate(env, ptw, table, fi)) {
goto do_fault;
}
desc = arm_ldl_ptw(env, ptw, fi);
if (fi->type != ARMFault_None) {
goto do_fault;
}
@ -545,7 +536,10 @@ static bool get_phys_addr_v5(CPUARMState *env, S1Translate *ptw,
/* Fine pagetable. */
table = (desc & 0xfffff000) | ((address >> 8) & 0xffc);
}
desc = arm_ldl_ptw(env, ptw, table, fi);
if (!S1_ptw_translate(env, ptw, table, fi)) {
goto do_fault;
}
desc = arm_ldl_ptw(env, ptw, fi);
if (fi->type != ARMFault_None) {
goto do_fault;
}
@ -630,7 +624,10 @@ static bool get_phys_addr_v6(CPUARMState *env, S1Translate *ptw,
fi->type = ARMFault_Translation;
goto do_fault;
}
desc = arm_ldl_ptw(env, ptw, table, fi);
if (!S1_ptw_translate(env, ptw, table, fi)) {
goto do_fault;
}
desc = arm_ldl_ptw(env, ptw, fi);
if (fi->type != ARMFault_None) {
goto do_fault;
}
@ -683,7 +680,10 @@ static bool get_phys_addr_v6(CPUARMState *env, S1Translate *ptw,
ns = extract32(desc, 3, 1);
/* Lookup l2 entry. */
table = (desc & 0xfffffc00) | ((address >> 10) & 0x3fc);
desc = arm_ldl_ptw(env, ptw, table, fi);
if (!S1_ptw_translate(env, ptw, table, fi)) {
goto do_fault;
}
desc = arm_ldl_ptw(env, ptw, fi);
if (fi->type != ARMFault_None) {
goto do_fault;
}
@ -1272,7 +1272,10 @@ static bool get_phys_addr_lpae(CPUARMState *env, S1Translate *ptw,
ptw->in_ptw_idx &= ~1;
ptw->in_secure = false;
}
descriptor = arm_ldq_ptw(env, ptw, descaddr, fi);
if (!S1_ptw_translate(env, ptw, descaddr, fi)) {
goto do_fault;
}
descriptor = arm_ldq_ptw(env, ptw, fi);
if (fi->type != ARMFault_None) {
goto do_fault;
}