Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140804' into staging

target-arm queue:
 * Set PC correctly when loading AArch64 ELF files
 * sdhci: Fix ADMA dma_memory_read access
 * some more foundational work for EL2/EL3 support
 * fix bugs which reveal themselves if the TARGET_PAGE_SIZE
   is not set to 1K

# gpg: Signature made Mon 04 Aug 2014 14:51:34 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20140804:
  target-arm: A64: fix TLB flush instructions
  target-arm: don't hardcode mask values in arm_cpu_handle_mmu_fault
  target-arm: Fix bit test in sp_el0_access
  target-arm: Add FAR_EL2 and 3
  target-arm: Add ESR_EL2 and 3
  target-arm: Make far_el1 an array
  target-arm: A64: Respect SPSEL when taking exceptions
  target-arm: A64: Respect SPSEL in ERET SP restore
  target-arm: A64: Break out aarch64_save/restore_sp
  sd: sdhci: Fix ADMA dma_memory_read access
  hw/arm/virt: formatting: memory map
  hw/arm/boot: Set PC correctly when loading AArch64 ELF files

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 31 insertions, 11 deletions

diff --git a/target-arm/helper.c b/target-arm/helper.c
index d3438560e6..f630d96306 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -521,7 +521,7 @@ static const ARMCPRegInfo v6_cp_reginfo[] = {
       .access = PL0_W, .type = ARM_CP_NOP },
     { .name = "IFAR", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 2,
       .access = PL1_RW,
-      .fieldoffset = offsetofhigh32(CPUARMState, cp15.far_el1),
+      .fieldoffset = offsetofhigh32(CPUARMState, cp15.far_el[1]),
       .resetvalue = 0, },
     /* Watchpoint Fault Address Register : should actually only be present
      * for 1136, 1176, 11MPCore.
@@ -1516,7 +1516,7 @@ static const ARMCPRegInfo vmsa_cp_reginfo[] = {
     /* 64-bit FAR; this entry also gives us the AArch32 DFAR */
     { .name = "FAR_EL1", .state = ARM_CP_STATE_BOTH,
       .opc0 = 3, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 0,
-      .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el1),
+      .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el[1]),
       .resetvalue = 0, },
     REGINFO_SENTINEL
 };
@@ -1801,12 +1801,17 @@ static CPAccessResult aa64_cacheop_access(CPUARMState *env,
     return CP_ACCESS_OK;
 }
 
+/* See: D4.7.2 TLB maintenance requirements and the TLB maintenance instructions
+ * Page D4-1736 (DDI0487A.b)
+ */
+
 static void tlbi_aa64_va_write(CPUARMState *env, const ARMCPRegInfo *ri,
                                uint64_t value)
 {
     /* Invalidate by VA (AArch64 version) */
     ARMCPU *cpu = arm_env_get_cpu(env);
-    uint64_t pageaddr = value << 12;
+    uint64_t pageaddr = sextract64(value << 12, 0, 56);
+
     tlb_flush_page(CPU(cpu), pageaddr);
 }
 
@@ -1815,7 +1820,8 @@ static void tlbi_aa64_vaa_write(CPUARMState *env, const ARMCPRegInfo *ri,
 {
     /* Invalidate by VA, all ASIDs (AArch64 version) */
     ARMCPU *cpu = arm_env_get_cpu(env);
-    uint64_t pageaddr = value << 12;
+    uint64_t pageaddr = sextract64(value << 12, 0, 56);
+
     tlb_flush_page(CPU(cpu), pageaddr);
 }
 
@@ -1853,7 +1859,7 @@ static uint64_t aa64_dczid_read(CPUARMState *env, const ARMCPRegInfo *ri)
 
 static CPAccessResult sp_el0_access(CPUARMState *env, const ARMCPRegInfo *ri)
 {
-    if (!env->pstate & PSTATE_SP) {
+    if (!(env->pstate & PSTATE_SP)) {
         /* Access to SP_EL0 is undefined if it's being used as
          * the stack pointer.
          */
@@ -2127,6 +2133,13 @@ static const ARMCPRegInfo v8_el2_cp_reginfo[] = {
       .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 1,
       .access = PL2_RW,
       .fieldoffset = offsetof(CPUARMState, elr_el[2]) },
+    { .name = "ESR_EL2", .state = ARM_CP_STATE_AA64,
+      .type = ARM_CP_NO_MIGRATE,
+      .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0,
+      .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[2]) },
+    { .name = "FAR_EL2", .state = ARM_CP_STATE_AA64,
+      .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 0,
+      .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el[2]) },
     { .name = "SPSR_EL2", .state = ARM_CP_STATE_AA64,
       .type = ARM_CP_NO_MIGRATE,
       .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 0,
@@ -2145,6 +2158,13 @@ static const ARMCPRegInfo v8_el3_cp_reginfo[] = {
       .opc0 = 3, .opc1 = 6, .crn = 4, .crm = 0, .opc2 = 1,
       .access = PL3_RW,
       .fieldoffset = offsetof(CPUARMState, elr_el[3]) },
+    { .name = "ESR_EL3", .state = ARM_CP_STATE_AA64,
+      .type = ARM_CP_NO_MIGRATE,
+      .opc0 = 3, .opc1 = 6, .crn = 5, .crm = 2, .opc2 = 0,
+      .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[3]) },
+    { .name = "FAR_EL3", .state = ARM_CP_STATE_AA64,
+      .opc0 = 3, .opc1 = 6, .crn = 6, .crm = 0, .opc2 = 0,
+      .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el[3]) },
     { .name = "SPSR_EL3", .state = ARM_CP_STATE_AA64,
       .type = ARM_CP_NO_MIGRATE,
       .opc0 = 3, .opc1 = 6, .crn = 4, .crm = 0, .opc2 = 0,
@@ -3425,8 +3445,8 @@ void arm_cpu_do_interrupt(CPUState *cs)
         /* Fall through to prefetch abort.  */
     case EXCP_PREFETCH_ABORT:
         env->cp15.ifsr_el2 = env->exception.fsr;
-        env->cp15.far_el1 = deposit64(env->cp15.far_el1, 32, 32,
-                                      env->exception.vaddress);
+        env->cp15.far_el[1] = deposit64(env->cp15.far_el[1], 32, 32,
+                                        env->exception.vaddress);
         qemu_log_mask(CPU_LOG_INT, "...with IFSR 0x%x IFAR 0x%x\n",
                       env->cp15.ifsr_el2, (uint32_t)env->exception.vaddress);
         new_mode = ARM_CPU_MODE_ABT;
@@ -3436,8 +3456,8 @@ void arm_cpu_do_interrupt(CPUState *cs)
         break;
     case EXCP_DATA_ABORT:
         env->cp15.esr_el[1] = env->exception.fsr;
-        env->cp15.far_el1 = deposit64(env->cp15.far_el1, 0, 32,
-                                      env->exception.vaddress);
+        env->cp15.far_el[1] = deposit64(env->cp15.far_el[1], 0, 32,
+                                        env->exception.vaddress);
         qemu_log_mask(CPU_LOG_INT, "...with DFSR 0x%x DFAR 0x%x\n",
                       (uint32_t)env->cp15.esr_el[1],
                       (uint32_t)env->exception.vaddress);
@@ -4142,8 +4162,8 @@ int arm_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
                         &page_size);
     if (ret == 0) {
         /* Map a single [sub]page.  */
-        phys_addr &= ~(hwaddr)0x3ff;
-        address &= ~(target_ulong)0x3ff;
+        phys_addr &= TARGET_PAGE_MASK;
+        address &= TARGET_PAGE_MASK;
         tlb_set_page(cs, address, phys_addr, prot, mmu_idx, page_size);
         return 0;
     }