Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20141223' into staging

target-arm queue:
 * enable 32-bit EL3 (TrustZone) for vexpress and virt boards
 * add fw_cfg device to virt board for UEFI firmware config
 * support passing commandline kernel/initrd to firmware

# gpg: Signature made Tue 23 Dec 2014 13:50:33 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20141223: (31 commits)
  hw/arm/virt: enable passing of EFI-stubbed kernel to guest UEFI firmware
  hw/arm: pass pristine kernel image to guest firmware over fw_cfg
  hw/loader: split out load_image_gzipped_buffer()
  arm: add fw_cfg to "virt" board
  fw_cfg_mem: expose the "data_width" property with fw_cfg_init_mem_wide()
  fw_cfg_mem: introduce the "data_width" property
  exec: allows 8-byte accesses in subpage_ops
  fw_cfg_mem: flip ctl_mem_ops and data_mem_ops to DEVICE_BIG_ENDIAN
  fw_cfg_mem: max access size and region size are the same for data register
  fw_cfg: move boards to fw_cfg_init_io() / fw_cfg_init_mem()
  fw_cfg: hard separation between the MMIO and I/O port mappings
  target-arm: add cpu feature EL3 to CPUs with Security Extensions
  target-arm: Disable EL3 on unsupported machines
  target-arm: Breakout integratorcp and versatilepb cpu init
  target-arm: Set CPU has_el3 prop during virt init
  target-arm: Enable CPU has_el3 prop during VE init
  target-arm: Add arm_boot_info secure_boot control
  target-arm: Add ARMCPU secure property
  target-arm: Add feature unset function
  target-arm: Add virt machine secure property
  ...

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

2 files changed, 66 insertions, 9 deletions

diff --git a/hw/core/loader.c b/hw/core/loader.c
index 7527fd3036..f2b34da240 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -614,14 +614,9 @@ int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz)
                             NULL, NULL);
 }
 
-/* This simply prevents g_malloc in the function below from allocating
- * a huge amount of memory, by placing a limit on the maximum
- * uncompressed image size that load_image_gzipped will read.
- */
-#define LOAD_IMAGE_MAX_GUNZIP_BYTES (256 << 20)
-
-/* Load a gzip-compressed kernel. */
-int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz)
+/* Load a gzip-compressed kernel to a dynamically allocated buffer. */
+int load_image_gzipped_buffer(const char *filename, uint64_t max_sz,
+                              uint8_t **buffer)
 {
     uint8_t *compressed_data = NULL;
     uint8_t *data = NULL;
@@ -653,8 +648,11 @@ int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz)
         goto out;
     }
 
-    rom_add_blob_fixed(filename, data, bytes, addr);
+    /* trim to actual size and return to caller */
+    *buffer = g_realloc(data, bytes);
     ret = bytes;
+    /* ownership has been transferred to caller */
+    data = NULL;
 
  out:
     g_free(compressed_data);
@@ -662,6 +660,20 @@ int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz)
     return ret;
 }
 
+/* Load a gzip-compressed kernel. */
+int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz)
+{
+    int bytes;
+    uint8_t *data;
+
+    bytes = load_image_gzipped_buffer(filename, max_sz, &data);
+    if (bytes != -1) {
+        rom_add_blob_fixed(filename, data, bytes, addr);
+        g_free(data);
+    }
+    return bytes;
+}
+
 /*
  * Functions for reboot-persistent memory regions.
  *  - used for vga bios and option roms.
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 19d3e3a707..a0ae5f94ce 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -291,48 +291,93 @@ static void machine_initfn(Object *obj)
 
     object_property_add_str(obj, "accel",
                             machine_get_accel, machine_set_accel, NULL);
+    object_property_set_description(obj, "accel",
+                                    "Accelerator list",
+                                    NULL);
     object_property_add_bool(obj, "kernel-irqchip",
                              machine_get_kernel_irqchip,
                              machine_set_kernel_irqchip,
                              NULL);
+    object_property_set_description(obj, "kernel-irqchip",
+                                    "Use KVM in-kernel irqchip",
+                                    NULL);
     object_property_add(obj, "kvm-shadow-mem", "int",
                         machine_get_kvm_shadow_mem,
                         machine_set_kvm_shadow_mem,
                         NULL, NULL, NULL);
+    object_property_set_description(obj, "kvm-shadow-mem",
+                                    "KVM shadow MMU size",
+                                    NULL);
     object_property_add_str(obj, "kernel",
                             machine_get_kernel, machine_set_kernel, NULL);
+    object_property_set_description(obj, "kernel",
+                                    "Linux kernel image file",
+                                    NULL);
     object_property_add_str(obj, "initrd",
                             machine_get_initrd, machine_set_initrd, NULL);
+    object_property_set_description(obj, "initrd",
+                                    "Linux initial ramdisk file",
+                                    NULL);
     object_property_add_str(obj, "append",
                             machine_get_append, machine_set_append, NULL);
+    object_property_set_description(obj, "append",
+                                    "Linux kernel command line",
+                                    NULL);
     object_property_add_str(obj, "dtb",
                             machine_get_dtb, machine_set_dtb, NULL);
+    object_property_set_description(obj, "dtb",
+                                    "Linux kernel device tree file",
+                                    NULL);
     object_property_add_str(obj, "dumpdtb",
                             machine_get_dumpdtb, machine_set_dumpdtb, NULL);
+    object_property_set_description(obj, "dumpdtb",
+                                    "Dump current dtb to a file and quit",
+                                    NULL);
     object_property_add(obj, "phandle-start", "int",
                         machine_get_phandle_start,
                         machine_set_phandle_start,
                         NULL, NULL, NULL);
+    object_property_set_description(obj, "phandle-start",
+                                    "The first phandle ID we may generate dynamically",
+                                    NULL);
     object_property_add_str(obj, "dt-compatible",
                             machine_get_dt_compatible,
                             machine_set_dt_compatible,
                             NULL);
+    object_property_set_description(obj, "dt-compatible",
+                                    "Overrides the \"compatible\" property of the dt root node",
+                                    NULL);
     object_property_add_bool(obj, "dump-guest-core",
                              machine_get_dump_guest_core,
                              machine_set_dump_guest_core,
                              NULL);
+    object_property_set_description(obj, "dump-guest-core",
+                                    "Include guest memory in  a core dump",
+                                    NULL);
     object_property_add_bool(obj, "mem-merge",
                              machine_get_mem_merge,
                              machine_set_mem_merge, NULL);
+    object_property_set_description(obj, "mem-merge",
+                                    "Enable/disable memory merge support",
+                                    NULL);
     object_property_add_bool(obj, "usb",
                              machine_get_usb,
                              machine_set_usb, NULL);
+    object_property_set_description(obj, "usb",
+                                    "Set on/off to enable/disable usb",
+                                    NULL);
     object_property_add_str(obj, "firmware",
                             machine_get_firmware,
                             machine_set_firmware, NULL);
+    object_property_set_description(obj, "firmware",
+                                    "Firmware image",
+                                    NULL);
     object_property_add_bool(obj, "iommu",
                              machine_get_iommu,
                              machine_set_iommu, NULL);
+    object_property_set_description(obj, "iommu",
+                                    "Set on/off to enable/disable Intel IOMMU (VT-d)",
+                                    NULL);
 
     /* Register notifier when init is done for sysbus sanity checks */
     ms->sysbus_notifier.notify = machine_init_notify;