From: Dmitry Voytik <dmitry.voy...@huawei.com>
This patch implements a loader, that can be used to boot a Linux
kernel in a Jailhouse cell on AArch64.
Signed-off-by: Dmitry Voytik <dmitry.voy...@huawei.com>
Signed-off-by: Antonios Motakis <antonios.mota...@huawei.com>
[antonios.mota...@huawei.com:
- split foundation-v8 configuration to a separate patch
- small fixes in the linux loader output
- take kernel and dtb address using cell load command line ]
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
inmates/tools/arm64/Makefile | 19 +++++++++++
inmates/tools/arm64/linux-loader.c | 66 ++++++++++++++++++++++++++++++++++++++
2 files changed, 85 insertions(+)
create mode 100644 inmates/tools/arm64/linux-loader.c
diff --git a/inmates/tools/arm64/Makefile b/inmates/tools/arm64/Makefile
index e69de29..4a72277 100644
--- a/inmates/tools/arm64/Makefile
+++ b/inmates/tools/arm64/Makefile
@@ -0,0 +1,19 @@
+#
+# Jailhouse, a Linux-based partitioning hypervisor
+#
+# Copyright (c) Siemens AG, 2013-2015
+#
+# Authors:
+# Jan Kiszka <jan.kis...@siemens.com>
+#
+# This work is licensed under the terms of the GNU GPL, version 2. See
+# the COPYING file in the top-level directory.
+#
+
+include $(INMATES_LIB)/Makefile.lib
+
+INMATES := linux-loader.bin
+
+linux-loader-y := linux-loader.o
+
+$(eval $(call DECLARE_TARGETS,$(INMATES)))
diff --git a/inmates/tools/arm64/linux-loader.c
b/inmates/tools/arm64/linux-loader.c
new file mode 100644
index 0000000..e8a6cac
--- /dev/null
+++ b/inmates/tools/arm64/linux-loader.c
@@ -0,0 +1,66 @@
+/*
+ * Jailhouse AArch64 support
+ *
+ * Copyright (C) 2015 Huawei Technologies Duesseldorf GmbH
+ *
+ * Authors:
+ * Dmitry Voytik <dmitry.voy...@huawei.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+
+#include <inmate.h>
+
+/* Example memory map:
+ * 0x00000000 - 0x00003fff (16K) this binary
+ * 0x00280000 Image
+ * 0x0fe00000 dtb
+ */
+
+#define CMDLINE_BUFFER_SIZE 256
+CMDLINE_BUFFER(CMDLINE_BUFFER_SIZE);
+
+struct arm64_linux_header {
+ u32 code0; /* Executable code */
+ u32 code1; /* Executable code */
+ u64 text_offset; /* Image load offset, little endian */
+ u64 image_size; /* Effective Image size, little endian */
+ u64 flags; /* kernel flags, little endian */
+ u64 res2; /* = 0, reserved */
+ u64 res3; /* = 0, reserved */
+ u64 res4; /* = 0, reserved */
+ u32 magic; /* 0x644d5241 Magic number, little endian,
+ "ARM\x64" */
+ u32 res5; /* reserved (used for PE COFF offset) */
+};
+
+void inmate_main(void)
+{
+ struct arm64_linux_header *kernel;
+ unsigned long dtb;
+ void (*entry)(unsigned long);
+
+ printk("\nJailhouse ARM64 Linux bootloader\n");
+
+ kernel = (void *) cmdline_parse_int("kernel", 0);
+ dtb = cmdline_parse_int("dtb", 0);
+
+ if (!kernel || !dtb) {
+ printk("ERROR: command line parameters kernel and dtb"
+ " are required\n");
+ while(1);
+ }
+
+ entry = (void*)(unsigned long) kernel;
+
+ printk("DTB: 0x%016lx\n", dtb);
+ printk("Image: 0x%016lx\n", kernel);
+ printk("Image size: %lu Bytes\n", kernel->image_size);
+ printk("entry: 0x%016lx\n", entry);
+ if (kernel->magic != 0x644d5241)
+ printk("WARNING: wrong Linux Image header magic: 0x%08x\n",
+ kernel->magic);
+
+ entry(dtb);
+}
--
2.1.4
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