docs: move x86 documentation into Documentation/arch/

[linux-2.6-microblaze.git] / Documentation / x86 / zero-page.rst

diff --git a/Documentation/x86/zero-page.rst b/Documentation/x86/zero-page.rst
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--- a/Documentation/x86/zero-page.rst
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-.. SPDX-License-Identifier: GPL-2.0
-
-=========
-Zero Page
-=========
-The additional fields in struct boot_params as a part of 32-bit boot
-protocol of kernel. These should be filled by bootloader or 16-bit
-real-mode setup code of the kernel. References/settings to it mainly
-are in::
-
-  arch/x86/include/uapi/asm/bootparam.h
-
-===========    =====   ======================= =================================================
-Offset/Size    Proto   Name                    Meaning
-
-000/040                ALL     screen_info             Text mode or frame buffer information
-                                               (struct screen_info)
-040/014                ALL     apm_bios_info           APM BIOS information (struct apm_bios_info)
-058/008                ALL     tboot_addr              Physical address of tboot shared page
-060/010                ALL     ist_info                Intel SpeedStep (IST) BIOS support information
-                                               (struct ist_info)
-070/008                ALL     acpi_rsdp_addr          Physical address of ACPI RSDP table
-080/010                ALL     hd0_info                hd0 disk parameter, OBSOLETE!!
-090/010                ALL     hd1_info                hd1 disk parameter, OBSOLETE!!
-0A0/010                ALL     sys_desc_table          System description table (struct sys_desc_table),
-                                               OBSOLETE!!
-0B0/010                ALL     olpc_ofw_header         OLPC's OpenFirmware CIF and friends
-0C0/004                ALL     ext_ramdisk_image       ramdisk_image high 32bits
-0C4/004                ALL     ext_ramdisk_size        ramdisk_size high 32bits
-0C8/004                ALL     ext_cmd_line_ptr        cmd_line_ptr high 32bits
-13C/004                ALL     cc_blob_address         Physical address of Confidential Computing blob
-140/080                ALL     edid_info               Video mode setup (struct edid_info)
-1C0/020                ALL     efi_info                EFI 32 information (struct efi_info)
-1E0/004                ALL     alt_mem_k               Alternative mem check, in KB
-1E4/004                ALL     scratch                 Scratch field for the kernel setup code
-1E8/001                ALL     e820_entries            Number of entries in e820_table (below)
-1E9/001                ALL     eddbuf_entries          Number of entries in eddbuf (below)
-1EA/001                ALL     edd_mbr_sig_buf_entries Number of entries in edd_mbr_sig_buffer
-                                               (below)
-1EB/001                ALL     kbd_status              Numlock is enabled
-1EC/001                ALL     secure_boot             Secure boot is enabled in the firmware
-1EF/001                ALL     sentinel                Used to detect broken bootloaders
-290/040                ALL     edd_mbr_sig_buffer      EDD MBR signatures
-2D0/A00                ALL     e820_table              E820 memory map table
-                                               (array of struct e820_entry)
-D00/1EC                ALL     eddbuf                  EDD data (array of struct edd_info)
-===========    =====   ======================= =================================================