grub2/include/grub/xen/relocator.h
Juergen Gross b67a95ecad xen: modify page table construction
Modify the page table construction to allow multiple virtual regions
to be mapped. This is done as preparation for removing the p2m list
from the initial kernel mapping in order to support huge pv domains.

This allows a cleaner approach for mapping the relocator page by
using this capability.

The interface to the assembler level of the relocator has to be changed
in order to be able to process multiple page table areas.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2016-10-27 16:22:06 +02:00

47 lines
1.4 KiB
C

/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2013 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_RELOCATOR_XEN_HEADER
#define GRUB_RELOCATOR_XEN_HEADER 1
#include <grub/types.h>
#include <grub/err.h>
#include <grub/relocator.h>
#define XEN_MAX_MAPPINGS 3
struct grub_relocator_xen_state
{
grub_addr_t start_info;
grub_addr_t paging_start[XEN_MAX_MAPPINGS];
grub_addr_t paging_size[XEN_MAX_MAPPINGS];
grub_addr_t mfn_list;
grub_addr_t stack;
grub_addr_t entry_point;
};
grub_err_t
grub_relocator_xen_boot (struct grub_relocator *rel,
struct grub_relocator_xen_state state,
grub_uint64_t remapper_pfn,
grub_addr_t remapper_virt,
grub_uint64_t trampoline_pfn,
grub_addr_t trampoline_virt);
#endif