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9e2b3e834c
Commit b24413180f ("License cleanup: add SPDX GPL-2.0 license
identifier to files with no license") was meant to do a tree-wide
cleanup for files without any license information by adding a SPDX
GPL-2.0 line to them.
Unfortunately this was applied even to several Xen-related headers
which have been originally under the MIT license, but obviously have
been copied to the Linux tree from the Xen project without keeping the
license boiler plate as required.
Correct that by changing the license of those files back to "MIT".
Some files still contain the MIT license text. Replace that by the
related SPDX line.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20211015143312.29900-1-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
142 lines
6.2 KiB
C
142 lines
6.2 KiB
C
/* SPDX-License-Identifier: MIT */
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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 1. 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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* | memmap_paddr | Physical address of the (optional) memory map. Only
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* | | present in version 1 and newer of the structure.
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* 48 +----------------+
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* | memmap_entries | Number of entries in the memory map table. Zero
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* | | if there is no memory map being provided. Only
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* | | present in version 1 and newer of the structure.
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* 52 +----------------+
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* | reserved | Version 1 and newer only.
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* 56 +----------------+
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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 layout of each entry in the memory map table is as follows:
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*
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* 0 +----------------+
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* | addr | Base address
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* 8 +----------------+
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* | size | Size of mapping in bytes
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* 16 +----------------+
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* | type | Type of mapping as defined between the hypervisor
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* | | and guest. See XEN_HVM_MEMMAP_TYPE_* values below.
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* 20 +----------------|
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* | reserved |
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* 24 +----------------+
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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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* Version numbers of the hvm_start_info structure have evolved like this:
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*
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* Version 0: Initial implementation.
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*
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* Version 1: Added the memmap_paddr/memmap_entries fields (plus 4 bytes of
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* padding) to the end of the hvm_start_info struct. These new
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* fields can be used to pass a memory map to the guest. The
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* memory map is optional and so guests that understand version 1
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* of the structure must check that memmap_entries is non-zero
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* before trying to read the memory map.
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*/
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#define XEN_HVM_START_MAGIC_VALUE 0x336ec578
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/*
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* The values used in the type field of the memory map table entries are
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* defined below and match the Address Range Types as defined in the "System
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* Address Map Interfaces" section of the ACPI Specification. Please refer to
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* section 15 in version 6.2 of the ACPI spec: http://uefi.org/specifications
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*/
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#define XEN_HVM_MEMMAP_TYPE_RAM 1
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#define XEN_HVM_MEMMAP_TYPE_RESERVED 2
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#define XEN_HVM_MEMMAP_TYPE_ACPI 3
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#define XEN_HVM_MEMMAP_TYPE_NVS 4
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#define XEN_HVM_MEMMAP_TYPE_UNUSABLE 5
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#define XEN_HVM_MEMMAP_TYPE_DISABLED 6
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#define XEN_HVM_MEMMAP_TYPE_PMEM 7
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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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/* All following fields only present in version 1 and newer */
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uint64_t memmap_paddr; /* Physical address of an array of */
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/* hvm_memmap_table_entry. */
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uint32_t memmap_entries; /* Number of entries in the memmap table. */
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/* Value will be zero if there is no memory */
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/* map being provided. */
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uint32_t reserved; /* Must be zero. */
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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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struct hvm_memmap_table_entry {
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uint64_t addr; /* Base address of the memory region */
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uint64_t size; /* Size of the memory region in bytes */
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uint32_t type; /* Mapping type */
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uint32_t reserved; /* Must be zero for Version 1. */
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};
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#endif /* __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__ */
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