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, 165 insertions, 0 deletions

diff --git a/tools/libxc/xc_core.h b/tools/libxc/xc_core.h
new file mode 100644
index 0000000000..2a65bc2501
--- /dev/null
+++ b/tools/libxc/xc_core.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2006 Isaku Yamahata <yamahata at valinux co jp>
+ *                    VA Linux Systems Japan K.K.
+ *
+ * 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.
+ *
+ */
+
+#ifndef XC_CORE_H
+#define XC_CORE_H
+
+#include "xen/version.h"
+#include "xg_private.h"
+#include "xen/elfstructs.h"
+
+/* section names */
+#define XEN_DUMPCORE_SEC_NOTE                   ".note.Xen"
+#define XEN_DUMPCORE_SEC_PRSTATUS               ".xen_prstatus"
+#define XEN_DUMPCORE_SEC_SHARED_INFO            ".xen_shared_info"
+#define XEN_DUMPCORE_SEC_P2M                    ".xen_p2m"
+#define XEN_DUMPCORE_SEC_PFN                    ".xen_pfn"
+#define XEN_DUMPCORE_SEC_PAGES                  ".xen_pages"
+
+#define XEN_DUMPCORE_SEC_IA64_MAPPED_REGS       ".xen_ia64_mapped_regs"
+
+/* elf note name */
+#define XEN_DUMPCORE_ELFNOTE_NAME               "Xen"
+/* note numbers are defined in xen/elfnote.h */
+
+struct xen_elfnote {
+    uint32_t    namesz; /* Elf_Note note; */
+    uint32_t    descsz;
+    uint32_t    type;
+    char        name[4]; /* sizeof("Xen") = 4
+                          * Fotunately this is 64bit aligned so that
+                          * we can use same structore for both 32/64bit
+                          */
+};
+
+struct xen_dumpcore_elfnote_none_desc {
+    /* nothing */
+};
+
+struct xen_dumpcore_elfnote_header_desc {
+    uint64_t    xch_magic;
+    uint64_t    xch_nr_vcpus;
+    uint64_t    xch_nr_pages;
+    uint64_t    xch_page_size;
+};
+
+struct xen_dumpcore_elfnote_xen_version_desc {
+    uint64_t                    major_version;
+    uint64_t                    minor_version;
+    xen_extraversion_t          extra_version;
+    xen_compile_info_t          compile_info;
+    xen_capabilities_info_t     capabilities;
+    xen_changeset_info_t        changeset;
+    xen_platform_parameters_t   platform_parameters;
+    uint64_t                    pagesize;
+};
+
+#define XEN_DUMPCORE_FORMAT_VERSION(major, minor)  \
+    ((major) << 32) | ((minor) & 0xffffffff)
+#define XEN_DUMPCORE_FORMAT_MAJOR(version)      ((major) >> 32)
+#define XEN_DUMPCORE_FORMAT_MINOR(version)      ((minor) & 0xffffffff)
+
+#define XEN_DUMPCORE_FORMAT_MAJOR_CURRENT       ((uint64_t)0)
+#define XEN_DUMPCORE_FORMAT_MINOR_CURRENT       ((uint64_t)1)
+#define XEN_DUMPCORE_FORMAT_VERSION_CURRENT                         \
+    XEN_DUMPCORE_FORMAT_VERSION(XEN_DUMPCORE_FORMAT_MAJOR_CURRENT,  \
+                                XEN_DUMPCORE_FORMAT_MINOR_CURRENT)
+
+struct xen_dumpcore_elfnote_format_version_desc {
+    uint64_t    version;
+};
+
+
+struct xen_dumpcore_elfnote_none {
+    struct xen_elfnote                          elfnote;
+    struct xen_dumpcore_elfnote_none_desc       none;
+};
+
+struct xen_dumpcore_elfnote_header {
+    struct xen_elfnote                          elfnote;
+    struct xen_dumpcore_elfnote_header_desc     header;
+};
+
+struct xen_dumpcore_elfnote_xen_version {
+    struct xen_elfnote                                  elfnote;
+    struct xen_dumpcore_elfnote_xen_version_desc        xen_version;
+};
+
+struct xen_dumpcore_elfnote_format_version {
+    struct xen_elfnote                                  elfnote;
+    struct xen_dumpcore_elfnote_format_version_desc     format_version;
+};
+
+struct xen_dumpcore_p2m {
+    uint64_t    pfn;
+    uint64_t    gmfn;
+};
+
+
+struct xc_core_strtab;
+struct xc_core_section_headers;
+
+Elf_Shdr*
+xc_core_shdr_get(struct xc_core_section_headers *sheaders);
+int
+xc_core_shdr_set(Elf_Shdr *shdr,
+                 struct xc_core_strtab *strtab,
+                 const char *name, uint32_t type,
+                 uint64_t offset, uint64_t size,
+                 uint64_t addralign, uint64_t entsize);
+
+struct xc_core_memory_map {
+    uint64_t    addr;
+    uint64_t    size;
+};
+typedef struct xc_core_memory_map xc_core_memory_map_t;
+int xc_core_arch_auto_translated_physmap(const xc_dominfo_t *info);
+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);
+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);
+
+
+#if defined (__i386__) || defined (__x86_64__)
+# include "xc_core_x86.h"
+#elif defined (__ia64__)
+# include "xc_core_ia64.h"
+#else
+# error "unsupported architecture"
+#endif
+
+#ifndef ELF_CORE_EFLAGS
+# define ELF_CORE_EFLAGS 0
+#endif
+
+#endif /* XC_CORE_H */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */