Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20150825-1' into staging

target-arm queue:
 * add missing EL2/EL3 TLBI operations
 * add missing EL2/EL3 ATS operations
 * add missing EL2/EL3 registers
 * update Xilinx MAINTAINERS info
 * Xilinx: connect the four OCM banks

# gpg: Signature made Tue 25 Aug 2015 16:22:43 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"

* remotes/pmaydell/tags/pull-target-arm-20150825-1:
  target-arm: Implement AArch64 TLBI operations on IPAs
  target-arm: Implement missing EL3 TLB invalidate operations
  target-arm: Implement missing EL2 TLBI operations
  target-arm: Restrict AArch64 TLB flushes to the MMU indexes they must touch
  target-arm: Move TLBI ALLE1/ALLE1IS definitions into numeric order
  cputlb: Add functions for flushing TLB for a single MMU index
  target-arm: Implement AArch32 ATS1H* operations
  target-arm: Enable the AArch32 ATS12NSO ops
  target-arm: Add CP_ACCESS_TRAP_UNCATEGORIZED_EL2, 3
  target-arm: Wire up AArch64 EL2 and EL3 address translation ops
  target-arm: there is no TTBR1 for 32-bit EL2 stage 1 translations
  target-arm: Implement missing ACTLR registers
  target-arm: Implement missing AFSR registers
  target-arm: Implement missing AMAIR registers
  target-arm: Add missing MAIR_EL3 and TPIDR_EL3 registers
  MAINTAINERS: Add ZynqMP to MAINTAINERS file
  MAINTAINERS: Update Xilinx Maintainership
  xlnx-zynqmp: Connect the four OCM banks
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

MAINTAINERS

@@ -349,13 +349,22 @@ S: Maintained
 F: hw/*/versatile*
 
 Xilinx Zynq
-M: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
+M: Alistair Francis <alistair.francis@xilinx.com>
+M: Peter Crosthwaite <crosthwaite.peter@gmail.com>
 S: Maintained
 F: hw/arm/xilinx_zynq.c
 F: hw/misc/zynq_slcr.c
 F: hw/*/cadence_*
 F: hw/ssi/xilinx_spips.c
 
+Xilinx ZynqMP
+M: Alistair Francis <alistair.francis@xilinx.com>
+M: Peter Crosthwaite <crosthwaite.peter@gmail.com>
+S: Maintained
+F: hw/arm/xlnx-zynqmp.c
+F: hw/arm/xlnx-ep108.c
+F: include/hw/arm/xlnx-zynqmp.h
+
 ARM ACPI Subsystem
 M: Shannon Zhao <zhaoshenglong@huawei.com>
 M: Shannon Zhao <shannon.zhao@linaro.org>
@@ -405,7 +414,7 @@ S: Maintained
 F: hw/microblaze/petalogix_s3adsp1800_mmu.c
 
 petalogix_ml605
-M: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
+M: Edgar E. Iglesias <edgar.iglesias@gmail.com>
 S: Maintained
 F: hw/microblaze/petalogix_ml605_mmu.c
 
@@ -685,10 +694,17 @@ S: Orphan
 F: hw/scsi/lsi53c895a.c
 
 SSI
-M: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
+M: Peter Crosthwaite <crosthwaite.peter@gmail.com>
 S: Maintained
 F: hw/ssi/*
 F: hw/block/m25p80.c
+X: hw/ssi/xilinx_*
+
+Xilinx SPI
+M: Alistair Francis <alistair.francis@xilinx.com>
+M: Peter Crosthwaite <crosthwaite.peter@gmail.com>
+S: Maintained
+F: hw/ssi/xilinx_*
 
 USB
 M: Gerd Hoffmann <kraxel@redhat.com>
@@ -777,8 +793,9 @@ F: hw/scsi/megasas.c
 F: hw/scsi/mfi.h
 
 Xilinx EDK
-M: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
 M: Edgar E. Iglesias <edgar.iglesias@gmail.com>
+M: Alistair Francis <alistair.francis@xilinx.com>
+M: Peter Crosthwaite <crosthwaite.peter@gmail.com>
 S: Maintained
 F: hw/*/xilinx_*
 F: include/hw/xilinx.h
@@ -880,7 +897,7 @@ F: include/hw/cpu/icc_bus.h
 F: hw/cpu/icc_bus.c
 
 Device Tree
-M: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
+M: Peter Crosthwaite <crosthwaite.peter@gmail.com>
 M: Alexander Graf <agraf@suse.de>
 S: Maintained
 F: device_tree.[ch]

cputlb.c

@@ -69,6 +69,47 @@ void tlb_flush(CPUState *cpu, int flush_global)
     tlb_flush_count++;
 }
 
+static inline void v_tlb_flush_by_mmuidx(CPUState *cpu, va_list argp)
+{
+    CPUArchState *env = cpu->env_ptr;
+
+#if defined(DEBUG_TLB)
+    printf("tlb_flush_by_mmuidx:");
+#endif
+    /* must reset current TB so that interrupts cannot modify the
+       links while we are modifying them */
+    cpu->current_tb = NULL;
+
+    for (;;) {
+        int mmu_idx = va_arg(argp, int);
+
+        if (mmu_idx < 0) {
+            break;
+        }
+
+#if defined(DEBUG_TLB)
+        printf(" %d", mmu_idx);
+#endif
+
+        memset(env->tlb_table[mmu_idx], -1, sizeof(env->tlb_table[0]));
+        memset(env->tlb_v_table[mmu_idx], -1, sizeof(env->tlb_v_table[0]));
+    }
+
+#if defined(DEBUG_TLB)
+    printf("\n");
+#endif
+
+    memset(cpu->tb_jmp_cache, 0, sizeof(cpu->tb_jmp_cache));
+}
+
+void tlb_flush_by_mmuidx(CPUState *cpu, ...)
+{
+    va_list argp;
+    va_start(argp, cpu);
+    v_tlb_flush_by_mmuidx(cpu, argp);
+    va_end(argp);
+}
+
 static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr)
 {
     if (addr == (tlb_entry->addr_read &
@@ -121,6 +162,62 @@ void tlb_flush_page(CPUState *cpu, target_ulong addr)
     tb_flush_jmp_cache(cpu, addr);
 }
 
+void tlb_flush_page_by_mmuidx(CPUState *cpu, target_ulong addr, ...)
+{
+    CPUArchState *env = cpu->env_ptr;
+    int i, k;
+    va_list argp;
+
+    va_start(argp, addr);
+
+#if defined(DEBUG_TLB)
+    printf("tlb_flush_page_by_mmu_idx: " TARGET_FMT_lx, addr);
+#endif
+    /* Check if we need to flush due to large pages.  */
+    if ((addr & env->tlb_flush_mask) == env->tlb_flush_addr) {
+#if defined(DEBUG_TLB)
+        printf(" forced full flush ("
+               TARGET_FMT_lx "/" TARGET_FMT_lx ")\n",
+               env->tlb_flush_addr, env->tlb_flush_mask);
+#endif
+        v_tlb_flush_by_mmuidx(cpu, argp);
+        va_end(argp);
+        return;
+    }
+    /* must reset current TB so that interrupts cannot modify the
+       links while we are modifying them */
+    cpu->current_tb = NULL;
+
+    addr &= TARGET_PAGE_MASK;
+    i = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
+
+    for (;;) {
+        int mmu_idx = va_arg(argp, int);
+
+        if (mmu_idx < 0) {
+            break;
+        }
+
+#if defined(DEBUG_TLB)
+        printf(" %d", mmu_idx);
+#endif
+
+        tlb_flush_entry(&env->tlb_table[mmu_idx][i], addr);
+
+        /* check whether there are vltb entries that need to be flushed */
+        for (k = 0; k < CPU_VTLB_SIZE; k++) {
+            tlb_flush_entry(&env->tlb_v_table[mmu_idx][k], addr);
+        }
+    }
+    va_end(argp);
+
+#if defined(DEBUG_TLB)
+    printf("\n");
+#endif
+
+    tb_flush_jmp_cache(cpu, addr);
+}
+
 /* update the TLBs so that writes to code in the virtual page 'addr'
    can be detected */
 void tlb_protect_code(ram_addr_t ram_addr)

hw/arm/xlnx-zynqmp.c

@@ -101,6 +101,21 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
     qemu_irq gic_spi[GIC_NUM_SPI_INTR];
     Error *err = NULL;
 
+    /* Create the four OCM banks */
+    for (i = 0; i < XLNX_ZYNQMP_NUM_OCM_BANKS; i++) {
+        char *ocm_name = g_strdup_printf("zynqmp.ocm_ram_bank_%d", i);
+
+        memory_region_init_ram(&s->ocm_ram[i], NULL, ocm_name,
+                               XLNX_ZYNQMP_OCM_RAM_SIZE, &error_abort);
+        vmstate_register_ram_global(&s->ocm_ram[i]);
+        memory_region_add_subregion(get_system_memory(),
+                                    XLNX_ZYNQMP_OCM_RAM_0_ADDRESS +
+                                        i * XLNX_ZYNQMP_OCM_RAM_SIZE,
+                                    &s->ocm_ram[i]);
+
+        g_free(ocm_name);
+    }
+
     qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", GIC_NUM_SPI_INTR + 32);
     qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2);
     qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", XLNX_ZYNQMP_NUM_APU_CPUS);

include/exec/exec-all.h

@@ -96,8 +96,46 @@ bool qemu_in_vcpu_thread(void);
 void cpu_reload_memory_map(CPUState *cpu);
 void tcg_cpu_address_space_init(CPUState *cpu, AddressSpace *as);
 /* cputlb.c */
+/**
+ * tlb_flush_page:
+ * @cpu: CPU whose TLB should be flushed
+ * @addr: virtual address of page to be flushed
+ *
+ * Flush one page from the TLB of the specified CPU, for all
+ * MMU indexes.
+ */
 void tlb_flush_page(CPUState *cpu, target_ulong addr);
+/**
+ * tlb_flush:
+ * @cpu: CPU whose TLB should be flushed
+ * @flush_global: ignored
+ *
+ * Flush the entire TLB for the specified CPU.
+ * The flush_global flag is in theory an indicator of whether the whole
+ * TLB should be flushed, or only those entries not marked global.
+ * In practice QEMU does not implement any global/not global flag for
+ * TLB entries, and the argument is ignored.
+ */
 void tlb_flush(CPUState *cpu, int flush_global);
+/**
+ * tlb_flush_page_by_mmuidx:
+ * @cpu: CPU whose TLB should be flushed
+ * @addr: virtual address of page to be flushed
+ * @...: list of MMU indexes to flush, terminated by a negative value
+ *
+ * Flush one page from the TLB of the specified CPU, for the specified
+ * MMU indexes.
+ */
+void tlb_flush_page_by_mmuidx(CPUState *cpu, target_ulong addr, ...);
+/**
+ * tlb_flush_by_mmuidx:
+ * @cpu: CPU whose TLB should be flushed
+ * @...: list of MMU indexes to flush, terminated by a negative value
+ *
+ * Flush all entries from the TLB of the specified CPU, for the specified
+ * MMU indexes.
+ */
+void tlb_flush_by_mmuidx(CPUState *cpu, ...);
 void tlb_set_page(CPUState *cpu, target_ulong vaddr,
                   hwaddr paddr, int prot,
                   int mmu_idx, target_ulong size);
@@ -115,6 +153,15 @@ static inline void tlb_flush_page(CPUState *cpu, target_ulong addr)
 static inline void tlb_flush(CPUState *cpu, int flush_global)
 {
 }
+
+static inline void tlb_flush_page_by_mmuidx(CPUState *cpu,
+                                            target_ulong addr, ...)
+{
+}
+
+static inline void tlb_flush_by_mmuidx(CPUState *cpu, ...)
+{
+}
 #endif
 
 #define CODE_GEN_ALIGN           16 /* must be >= of the size of a icache line */

include/hw/arm/xlnx-zynqmp.h

@@ -32,6 +32,10 @@
 #define XLNX_ZYNQMP_NUM_GEMS 4
 #define XLNX_ZYNQMP_NUM_UARTS 2
 
+#define XLNX_ZYNQMP_NUM_OCM_BANKS 4
+#define XLNX_ZYNQMP_OCM_RAM_0_ADDRESS 0xFFFC0000
+#define XLNX_ZYNQMP_OCM_RAM_SIZE 0x10000
+
 #define XLNX_ZYNQMP_GIC_REGIONS 2
 
 /* ZynqMP maps the ARM GIC regions (GICC, GICD ...) at consecutive 64k offsets
@@ -52,6 +56,8 @@ typedef struct XlnxZynqMPState {
     ARMCPU rpu_cpu[XLNX_ZYNQMP_NUM_RPU_CPUS];
     GICState gic;
     MemoryRegion gic_mr[XLNX_ZYNQMP_GIC_REGIONS][XLNX_ZYNQMP_GIC_ALIASES];
+    MemoryRegion ocm_ram[XLNX_ZYNQMP_NUM_OCM_BANKS];
+
     CadenceGEMState gem[XLNX_ZYNQMP_NUM_GEMS];
     CadenceUARTState uart[XLNX_ZYNQMP_NUM_UARTS];
 

target-arm/cpu.h

@@ -1284,6 +1284,9 @@ typedef enum CPAccessResult {
     /* As CP_ACCESS_TRAP, but for traps directly to EL2 or EL3 */
     CP_ACCESS_TRAP_EL2 = 3,
     CP_ACCESS_TRAP_EL3 = 4,
+    /* As CP_ACCESS_UNCATEGORIZED, but for traps directly to EL2 or EL3 */
+    CP_ACCESS_TRAP_UNCATEGORIZED_EL2 = 5,
+    CP_ACCESS_TRAP_UNCATEGORIZED_EL3 = 6,
 } CPAccessResult;
 
 /* Access functions for coprocessor registers. These cannot fail and

target-arm/op_helper.c

@@ -444,6 +444,14 @@ void HELPER(access_check_cp_reg)(CPUARMState *env, void *rip, uint32_t syndrome)
         target_el = exception_target_el(env);
         syndrome = syn_uncategorized();
         break;
+    case CP_ACCESS_TRAP_UNCATEGORIZED_EL2:
+        target_el = 2;
+        syndrome = syn_uncategorized();
+        break;
+    case CP_ACCESS_TRAP_UNCATEGORIZED_EL3:
+        target_el = 3;
+        syndrome = syn_uncategorized();
+        break;
     default:
         g_assert_not_reached();
     }