RTC: Remove the logic to update time format when DM bit changed

[mirror_qemu.git] / hw / arm_boot.c

diff --git a/hw/arm_boot.c b/hw/arm_boot.c
index a1e6ddbc1c01b4ee9740c012cd2aea6accb11b00..a6e91436625eb005768d6fe7825ba2e26e0765e9 100644 (file)
--- a/hw/arm_boot.c
+++ b/hw/arm_boot.c
@@ -216,11 +216,12 @@ static void set_kernel_args_old(const struct arm_boot_info *info)
 static int load_dtb(target_phys_addr_t addr, const struct arm_boot_info *binfo)
 {
 #ifdef CONFIG_FDT
-    uint32_t mem_reg_property[] = { cpu_to_be32(binfo->loader_start),
-                                    cpu_to_be32(binfo->ram_size) };
+    uint32_t *mem_reg_property;
+    uint32_t mem_reg_propsize;
     void *fdt = NULL;
     char *filename;
     int size, rc;
+    uint32_t acells, scells, hival;
 
     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, binfo->dtb_filename);
     if (!filename) {
@@ -236,8 +237,36 @@ static int load_dtb(target_phys_addr_t addr, const struct arm_boot_info *binfo)
     }
     g_free(filename);
 
+    acells = qemu_devtree_getprop_cell(fdt, "/", "#address-cells");
+    scells = qemu_devtree_getprop_cell(fdt, "/", "#size-cells");
+    if (acells == 0 || scells == 0) {
+        fprintf(stderr, "dtb file invalid (#address-cells or #size-cells 0)\n");
+        return -1;
+    }
+
+    mem_reg_propsize = acells + scells;
+    mem_reg_property = g_new0(uint32_t, mem_reg_propsize);
+    mem_reg_property[acells - 1] = cpu_to_be32(binfo->loader_start);
+    hival = cpu_to_be32(binfo->loader_start >> 32);
+    if (acells > 1) {
+        mem_reg_property[acells - 2] = hival;
+    } else if (hival != 0) {
+        fprintf(stderr, "qemu: dtb file not compatible with "
+                "RAM start address > 4GB\n");
+        exit(1);
+    }
+    mem_reg_property[acells + scells - 1] = cpu_to_be32(binfo->ram_size);
+    hival = cpu_to_be32(binfo->ram_size >> 32);
+    if (scells > 1) {
+        mem_reg_property[acells + scells - 2] = hival;
+    } else if (hival != 0) {
+        fprintf(stderr, "qemu: dtb file not compatible with "
+                "RAM size > 4GB\n");
+        exit(1);
+    }
+
     rc = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property,
-                               sizeof(mem_reg_property));
+                              mem_reg_propsize * sizeof(uint32_t));
     if (rc < 0) {
         fprintf(stderr, "couldn't set /memory/reg\n");
     }
@@ -357,7 +386,7 @@ void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info)
     if (kernel_size < 0) {
         entry = info->loader_start + KERNEL_LOAD_ADDR;
         kernel_size = load_image_targphys(info->kernel_filename, entry,
-                                          ram_size - KERNEL_LOAD_ADDR);
+                                          info->ram_size - KERNEL_LOAD_ADDR);
         is_linux = 1;
     }
     if (kernel_size < 0) {
@@ -371,7 +400,8 @@ void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info)
             initrd_size = load_image_targphys(info->initrd_filename,
                                               info->loader_start
                                               + INITRD_LOAD_ADDR,
-                                              ram_size - INITRD_LOAD_ADDR);
+                                              info->ram_size
+                                              - INITRD_LOAD_ADDR);
             if (initrd_size < 0) {
                 fprintf(stderr, "qemu: could not load initrd '%s'\n",
                         info->initrd_filename);
@@ -398,6 +428,12 @@ void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info)
             bootloader[5] = dtb_start;
         } else {
             bootloader[5] = info->loader_start + KERNEL_ARGS_ADDR;
+            if (info->ram_size >= (1ULL << 32)) {
+                fprintf(stderr, "qemu: RAM size must be less than 4GB to boot"
+                        " Linux kernel using ATAGS (try passing a device tree"
+                        " using -dtb)\n");
+                exit(1);
+            }
         }
         bootloader[6] = entry;
         for (n = 0; n < sizeof(bootloader) / 4; n++) {