99 lines
4.3 KiB
C
99 lines
4.3 KiB
C
/*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Copyright (c) 2016, Citrix Systems, Inc.
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*/
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#ifndef __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__
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#define __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__
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/*
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* Start of day structure passed to PVH guests and to HVM guests in %ebx.
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*
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* NOTE: nothing will be loaded at physical address 0, so a 0 value in any
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* of the address fields should be treated as not present.
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*
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* 0 +----------------+
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* | magic | Contains the magic value XEN_HVM_START_MAGIC_VALUE
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* | | ("xEn3" with the 0x80 bit of the "E" set).
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* 4 +----------------+
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* | version | Version of this structure. Current version is 0. New
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* | | versions are guaranteed to be backwards-compatible.
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* 8 +----------------+
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* | flags | SIF_xxx flags.
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* 12 +----------------+
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* | nr_modules | Number of modules passed to the kernel.
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* 16 +----------------+
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* | modlist_paddr | Physical address of an array of modules
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* | | (layout of the structure below).
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* 24 +----------------+
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* | cmdline_paddr | Physical address of the command line,
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* | | a zero-terminated ASCII string.
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* 32 +----------------+
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* | rsdp_paddr | Physical address of the RSDP ACPI data structure.
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* 40 +----------------+
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*
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* The layout of each entry in the module structure is the following:
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*
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* 0 +----------------+
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* | paddr | Physical address of the module.
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* 8 +----------------+
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* | size | Size of the module in bytes.
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* 16 +----------------+
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* | cmdline_paddr | Physical address of the command line,
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* | | a zero-terminated ASCII string.
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* 24 +----------------+
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* | reserved |
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* 32 +----------------+
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*
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* The address and sizes are always a 64bit little endian unsigned integer.
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*
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* NB: Xen on x86 will always try to place all the data below the 4GiB
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* boundary.
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*/
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#define XEN_HVM_START_MAGIC_VALUE 0x336ec578
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/*
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* C representation of the x86/HVM start info layout.
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*
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* The canonical definition of this layout is above, this is just a way to
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* represent the layout described there using C types.
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*/
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struct hvm_start_info {
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uint32_t magic; /* Contains the magic value 0x336ec578 */
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/* ("xEn3" with the 0x80 bit of the "E" set).*/
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uint32_t version; /* Version of this structure. */
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uint32_t flags; /* SIF_xxx flags. */
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uint32_t nr_modules; /* Number of modules passed to the kernel. */
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uint64_t modlist_paddr; /* Physical address of an array of */
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/* hvm_modlist_entry. */
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uint64_t cmdline_paddr; /* Physical address of the command line. */
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uint64_t rsdp_paddr; /* Physical address of the RSDP ACPI data */
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/* structure. */
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};
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struct hvm_modlist_entry {
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uint64_t paddr; /* Physical address of the module. */
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uint64_t size; /* Size of the module in bytes. */
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uint64_t cmdline_paddr; /* Physical address of the command line. */
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uint64_t reserved;
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};
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#endif /* __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__ */
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