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authorEdgar E. Iglesias <edgar.iglesias@xilinx.com>2015-10-26 14:02:05 +0100
committerPeter Maydell <peter.maydell@linaro.org>2015-10-27 15:59:47 +0000
commita614e69854a2e601716ee44dfe15c09b8b88f620 (patch)
tree9401ad0f78fa2fa624f6dc7664dd6b07a3099eb3 /target-arm
parent37785977627295162bff58b1f8777d94e20f4c5b (diff)
target-arm: Add S2 translation to 32bit S1 PTWs
Add support for applying S2 translation to 32bit S1 page-table walks. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1445864527-14520-13-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/helper.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c
index bd395169ff..eb9a00d14e 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -6246,11 +6246,19 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
* was being done for a CPU load/store or an address translation instruction
* (but not if it was for a debug access).
*/
-static uint32_t arm_ldl_ptw(CPUState *cs, hwaddr addr, bool is_secure)
+static uint32_t arm_ldl_ptw(CPUState *cs, hwaddr addr, bool is_secure,
+ ARMMMUIdx mmu_idx, uint32_t *fsr,
+ ARMMMUFaultInfo *fi)
{
+ ARMCPU *cpu = ARM_CPU(cs);
+ CPUARMState *env = &cpu->env;
MemTxAttrs attrs = {};
attrs.secure = is_secure;
+ addr = S1_ptw_translate(env, mmu_idx, addr, attrs, fsr, fi);
+ if (fi->s1ptw) {
+ return 0;
+ }
return address_space_ldl(cs->as, addr, attrs, NULL);
}
@@ -6294,7 +6302,8 @@ static bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
code = 5;
goto do_fault;
}
- desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx));
+ desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx),
+ mmu_idx, fsr, fi);
type = (desc & 3);
domain = (desc >> 5) & 0x0f;
if (regime_el(env, mmu_idx) == 1) {
@@ -6330,7 +6339,8 @@ static bool get_phys_addr_v5(CPUARMState *env, uint32_t address,
/* Fine pagetable. */
table = (desc & 0xfffff000) | ((address >> 8) & 0xffc);
}
- desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx));
+ desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx),
+ mmu_idx, fsr, fi);
switch (desc & 3) {
case 0: /* Page translation fault. */
code = 7;
@@ -6411,7 +6421,8 @@ static bool get_phys_addr_v6(CPUARMState *env, uint32_t address,
code = 5;
goto do_fault;
}
- desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx));
+ desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx),
+ mmu_idx, fsr, fi);
type = (desc & 3);
if (type == 0 || (type == 3 && !arm_feature(env, ARM_FEATURE_PXN))) {
/* Section translation fault, or attempt to use the encoding
@@ -6462,7 +6473,8 @@ static bool get_phys_addr_v6(CPUARMState *env, uint32_t address,
ns = extract32(desc, 3, 1);
/* Lookup l2 entry. */
table = (desc & 0xfffffc00) | ((address >> 10) & 0x3fc);
- desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx));
+ desc = arm_ldl_ptw(cs, table, regime_is_secure(env, mmu_idx),
+ mmu_idx, fsr, fi);
ap = ((desc >> 4) & 3) | ((desc >> 7) & 4);
switch (desc & 3) {
case 0: /* Page translation fault. */