diff --git a/xen/include/public/hvm/hvm_xs_strings.h b/xen/include/public/hvm/hvm_xs_strings.h
new file mode 100644
index 0000000000..9042303b7b
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+++ b/xen/include/public/hvm/hvm_xs_strings.h
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+/******************************************************************************
+ * hvm/hvm_xs_strings.h
+ *
+ * HVM xenstore strings used in HVMLOADER.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __XEN_PUBLIC_HVM_HVM_XS_STRINGS_H__
+#define __XEN_PUBLIC_HVM_HVM_XS_STRINGS_H__
+
+#define HVM_XS_HVMLOADER               "hvmloader"
+#define HVM_XS_BIOS                    "hvmloader/bios"
+#define HVM_XS_GENERATION_ID_ADDRESS   "hvmloader/generation-id-address"
+
+/* The following values allow additional ACPI tables to be added to the
+ * virtual ACPI BIOS that hvmloader constructs. The values specify the guest
+ * physical address and length of a block of ACPI tables to add. The format of
+ * the block is simply concatenated raw tables (which specify their own length
+ * in the ACPI header).
+ */
+#define HVM_XS_ACPI_PT_ADDRESS         "hvmloader/acpi/address"
+#define HVM_XS_ACPI_PT_LENGTH          "hvmloader/acpi/length"
+
+/* Any number of SMBIOS types can be passed through to an HVM guest using
+ * the following xenstore values. The values specify the guest physical
+ * address and length of a block of SMBIOS structures for hvmloader to use.
+ * The block is formatted in the following way:
+ *
+ * <length><struct><length><struct>...
+ *
+ * Each length separator is a 32b integer indicating the length of the next
+ * SMBIOS structure. For DMTF defined types (0 - 121), the passed in struct
+ * will replace the default structure in hvmloader. In addition, any
+ * OEM/vendortypes (128 - 255) will all be added.
+ */
+#define HVM_XS_SMBIOS_PT_ADDRESS       "hvmloader/smbios/address"
+#define HVM_XS_SMBIOS_PT_LENGTH        "hvmloader/smbios/length"
+
+/* Set to 1 to enable SMBIOS default portable battery (type 22) values. */
+#define HVM_XS_SMBIOS_DEFAULT_BATTERY  "hvmloader/smbios/default_battery"
+
+/* The following xenstore values are used to override some of the default
+ * string values in the SMBIOS table constructed in hvmloader.
+ */
+#define HVM_XS_BIOS_STRINGS            "bios-strings"
+#define HVM_XS_BIOS_VENDOR             "bios-strings/bios-vendor"
+#define HVM_XS_BIOS_VERSION            "bios-strings/bios-version"
+#define HVM_XS_SYSTEM_MANUFACTURER     "bios-strings/system-manufacturer"
+#define HVM_XS_SYSTEM_PRODUCT_NAME     "bios-strings/system-product-name"
+#define HVM_XS_SYSTEM_VERSION          "bios-strings/system-version"
+#define HVM_XS_SYSTEM_SERIAL_NUMBER    "bios-strings/system-serial-number"
+#define HVM_XS_ENCLOSURE_MANUFACTURER  "bios-strings/enclosure-manufacturer"
+#define HVM_XS_ENCLOSURE_SERIAL_NUMBER "bios-strings/enclosure-serial-number"
+#define HVM_XS_BATTERY_MANUFACTURER    "bios-strings/battery-manufacturer"
+#define HVM_XS_BATTERY_DEVICE_NAME     "bios-strings/battery-device-name"
+
+/* 1 to 99 OEM strings can be set in xenstore using values of the form
+ * below. These strings will be loaded into the SMBIOS type 11 structure.
+ */
+#define HVM_XS_OEM_STRINGS             "bios-strings/oem-%02d"
+
+#endif /* __XEN_PUBLIC_HVM_HVM_XS_STRINGS_H__ */