libxc domain builder rewrite, linux builder

use new domain builder for the linux (aka generic elf) loader.

Signed-off-by: Gerd Hoffmann <kraxel@suse.de>
---
 tools/libxc/Makefile              |    7 +-
 tools/libxc/xc_dom_compat_linux.c |  124 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 129 insertions(+), 2 deletions(-)

1 files changed, 124 insertions, 0 deletions

diff --git a/tools/libxc/xc_dom_compat_linux.c b/tools/libxc/xc_dom_compat_linux.c
new file mode 100644
index 0000000000..c387cb88fe
--- /dev/null
+++ b/tools/libxc/xc_dom_compat_linux.c
@@ -0,0 +1,124 @@
+/*
+ * Xen domain builder -- compatibility code.
+ *
+ * Replacements for xc_linux_build & friends,
+ * as example code and to make the new builder
+ * usable as drop-in replacement.
+ *
+ * This code is licenced under the GPL.
+ * written 2006 by Gerd Hoffmann <kraxel@suse.de>.
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <zlib.h>
+
+#include "xenctrl.h"
+#include "xg_private.h"
+#include "xc_dom.h"
+
+/* ------------------------------------------------------------------------ */
+
+static int xc_linux_build_internal(struct xc_dom_image *dom,
+				   int xc_handle, uint32_t domid,
+				   unsigned int mem_mb,
+				   unsigned long flags,
+				   unsigned int store_evtchn,
+				   unsigned long *store_mfn,
+				   unsigned int console_evtchn,
+				   unsigned long *console_mfn)
+{
+    int rc;
+
+    if (0 != (rc = xc_dom_boot_xen_init(dom, xc_handle, domid)))
+	goto out;
+    if (0 != (rc = xc_dom_parse_image(dom)))
+	goto out;
+    if (0 != (rc = xc_dom_mem_init(dom, mem_mb)))
+	goto out;
+    if (0 != (rc = xc_dom_boot_mem_init(dom)))
+	goto out;
+    if (0 != (rc = xc_dom_build_image(dom)))
+	goto out;
+
+    dom->flags = flags;
+    dom->console_evtchn = console_evtchn;
+    dom->xenstore_evtchn = store_evtchn;
+    rc = xc_dom_boot_image(dom);
+    if (0 != rc)
+	goto out;
+
+    *console_mfn = xc_dom_p2m_host(dom, dom->console_pfn);
+    *store_mfn = xc_dom_p2m_host(dom, dom->xenstore_pfn);
+
+  out:
+    return rc;
+}
+
+int xc_linux_build_mem(int xc_handle, uint32_t domid,
+		       unsigned int mem_mb,
+		       const char *image_buffer,
+		       unsigned long image_size,
+		       const char *initrd,
+		       unsigned long initrd_len,
+		       const char *cmdline,
+		       const char *features,
+		       unsigned long flags,
+		       unsigned int store_evtchn,
+		       unsigned long *store_mfn,
+		       unsigned int console_evtchn, unsigned long *console_mfn)
+{
+    struct xc_dom_image *dom;
+    int rc;
+
+    xc_dom_loginit();
+    dom = xc_dom_allocate(cmdline, features);
+    if (0 != (rc = xc_dom_kernel_mem(dom, image_buffer, image_size)))
+	goto out;
+    if (initrd)
+	if (0 != (rc = xc_dom_ramdisk_mem(dom, initrd, initrd_len)))
+	    goto out;
+
+    rc = xc_linux_build_internal(dom, xc_handle, domid,
+				 mem_mb, flags,
+				 store_evtchn, store_mfn,
+				 console_evtchn, console_mfn);
+
+  out:
+    xc_dom_release(dom);
+    return rc;
+}
+
+int xc_linux_build(int xc_handle, uint32_t domid,
+		   unsigned int mem_mb,
+		   const char *image_name,
+		   const char *initrd_name,
+		   const char *cmdline,
+		   const char *features,
+		   unsigned long flags,
+		   unsigned int store_evtchn,
+		   unsigned long *store_mfn,
+		   unsigned int console_evtchn, unsigned long *console_mfn)
+{
+    struct xc_dom_image *dom;
+    int rc;
+
+    xc_dom_loginit();
+    dom = xc_dom_allocate(cmdline, features);
+    if (0 != (rc = xc_dom_kernel_file(dom, image_name)))
+	goto out;
+    if (initrd_name && strlen(initrd_name))
+	if (0 != (rc = xc_dom_ramdisk_file(dom, initrd_name)))
+	    goto out;
+
+    rc = xc_linux_build_internal(dom, xc_handle, domid,
+				 mem_mb, flags,
+				 store_evtchn, store_mfn,
+				 console_evtchn, console_mfn);
+
+  out:
+    xc_dom_release(dom);
+    return rc;
+}