Xen coredump format: ELF formatified with note section.

added PFN-GMFN table for non-auto translated physmap
added PFN table for auto translated physmap.
HVM domain support.
IA64 support

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>

Use the guest's own p2m table instead of xc_get_pfn_list(), which
cannot handle PFNs with no MFN.
Dump a zeroed page for PFNs with no MFN.
Clearly deprecate xc_get_pfn_list().
Do not include a P2M table with HVM domains.
Refuse to dump HVM until we can map its pages with PFNs.

Signed-off-by: John Levon <john.levon@sun.com>

1 files changed, 136 insertions, 0 deletions

diff --git a/tools/libxc/xc_core_x86.c b/tools/libxc/xc_core_x86.c
new file mode 100644
index 0000000000..6ea775aef6
--- /dev/null
+++ b/tools/libxc/xc_core_x86.c
@@ -0,0 +1,136 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Copyright (c) 2007 Isaku Yamahata <yamahata at valinux co jp>
+ *                    VA Linux Systems Japan K.K.
+ *
+ */
+
+#include "xg_private.h"
+#include "xc_core.h"
+
+int
+xc_core_arch_auto_translated_physmap(const xc_dominfo_t *info)
+{
+    if ( info->hvm )
+        return 1;
+    return 0;
+}
+
+int
+xc_core_arch_memory_map_get(int xc_handle, xc_dominfo_t *info,
+                            shared_info_t *live_shinfo,
+                            xc_core_memory_map_t **mapp,
+                            unsigned int *nr_entries)
+{
+    unsigned long max_pfn = live_shinfo->arch.max_pfn;
+    xc_core_memory_map_t *map = NULL;
+
+    map = malloc(sizeof(*map));
+    if ( !map )
+    {
+        PERROR("Could not allocate memory");
+        goto out;
+    }
+
+    map->addr = 0;
+    map->size = max_pfn << PAGE_SHIFT;
+
+    *mapp = map;
+    *nr_entries = 1;
+    return 0;
+
+out:
+    if ( map )
+        free(map);
+    return -1;
+}
+
+int
+xc_core_arch_map_p2m(int xc_handle, xc_dominfo_t *info,
+                     shared_info_t *live_shinfo, xen_pfn_t **live_p2m,
+                     unsigned long *pfnp)
+{
+    /* Double and single indirect references to the live P2M table */
+    xen_pfn_t *live_p2m_frame_list_list = NULL;
+    xen_pfn_t *live_p2m_frame_list = NULL;
+    uint32_t dom = info->domid;
+    unsigned long max_pfn = live_shinfo->arch.max_pfn;
+    int ret = -1;
+    int err;
+
+    if ( max_pfn < info->nr_pages  )
+    {
+        ERROR("max_pfn < nr_pages -1 (%lx < %lx", max_pfn, info->nr_pages - 1);
+        goto out;
+    }
+
+    live_p2m_frame_list_list =
+        xc_map_foreign_range(xc_handle, dom, PAGE_SIZE, PROT_READ,
+                             live_shinfo->arch.pfn_to_mfn_frame_list_list);
+
+    if ( !live_p2m_frame_list_list )
+    {
+        PERROR("Couldn't map p2m_frame_list_list (errno %d)", errno);
+        goto out;
+    }
+
+    live_p2m_frame_list =
+        xc_map_foreign_batch(xc_handle, dom, PROT_READ,
+                             live_p2m_frame_list_list,
+                             P2M_FLL_ENTRIES);
+
+    if ( !live_p2m_frame_list )
+    {
+        PERROR("Couldn't map p2m_frame_list");
+        goto out;
+    }
+
+    *live_p2m = xc_map_foreign_batch(xc_handle, dom, PROT_READ,
+                                    live_p2m_frame_list,
+                                    P2M_FL_ENTRIES);
+
+    if ( !*live_p2m )
+    {
+        PERROR("Couldn't map p2m table");
+        goto out;
+    }
+
+    *pfnp = max_pfn;
+
+    ret = 0;
+
+out:
+    err = errno;
+
+    if ( live_p2m_frame_list_list )
+        munmap(live_p2m_frame_list_list, PAGE_SIZE);
+
+    if ( live_p2m_frame_list )
+        munmap(live_p2m_frame_list, P2M_FLL_ENTRIES * PAGE_SIZE);
+
+    errno = err;
+    return ret;
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */