freebsd-dev/sys/xen/interface/hvm/hvm_info_table.h
Roger Pau Monné 1a52c10530 Update Xen headers from 4.2 to 4.6
Pull the latest headers for Xen which allow us to add support for ARM and
use new features in FreeBSD.

This is a verbatim copy of the xen/include/public so every headers which
don't exits anymore in the Xen repositories have been dropped.

Note the interface version hasn't been bumped, it will be done in a
follow-up. Although, it requires fix in the code to get it compiled:

 - sys/xen/xen_intr.h: evtchn_port_t is already defined in the headers so
   drop it.

 - {amd64,i386}/include/intr_machdep.h: NR_EVENT_CHANNELS now depends on
   xen/interface/event_channel.h, so include it.

 - {amd64,i386}/{amd64,i386}/support.S: It's not neccessary to include
   machine/intr_machdep.h. This is also fixing build compilation with the
   new headers.

 - dev/xen/blkfront/blkfront.c: The typedef for blkif_request_segmenthas
   been dropped. So directly use struct blkif_request_segment

Finally, modify xen/interface/xen-compat.h to throw a preprocessing error if
__XEN_INTERFACE_VERSION__ is not set. This is allow us to catch any file
where xen/xen-os.h is not correctly included.

Submitted by:		Julien Grall <julien.grall@citrix.com>
Reviewed by:		royger
Differential Revision:	https://reviews.freebsd.org/D3805
Sponsored by:		Citrix Systems R&D
2015-10-06 11:29:44 +00:00

75 lines
2.6 KiB
C

/******************************************************************************
* hvm/hvm_info_table.h
*
* HVM parameter and information table, written into guest memory map.
*
* 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.
*
* Copyright (c) 2006, Keir Fraser
*/
#ifndef __XEN_PUBLIC_HVM_HVM_INFO_TABLE_H__
#define __XEN_PUBLIC_HVM_HVM_INFO_TABLE_H__
#define HVM_INFO_PFN 0x09F
#define HVM_INFO_OFFSET 0x800
#define HVM_INFO_PADDR ((HVM_INFO_PFN << 12) + HVM_INFO_OFFSET)
/* Maximum we can support with current vLAPIC ID mapping. */
#define HVM_MAX_VCPUS 128
struct hvm_info_table {
char signature[8]; /* "HVM INFO" */
uint32_t length;
uint8_t checksum;
/* Should firmware build APIC descriptors (APIC MADT / MP BIOS)? */
uint8_t apic_mode;
/* How many CPUs does this domain have? */
uint32_t nr_vcpus;
/*
* MEMORY MAP provided by HVM domain builder.
* Notes:
* 1. page_to_phys(x) = x << 12
* 2. If a field is zero, the corresponding range does not exist.
*/
/*
* 0x0 to page_to_phys(low_mem_pgend)-1:
* RAM below 4GB (except for VGA hole 0xA0000-0xBFFFF)
*/
uint32_t low_mem_pgend;
/*
* page_to_phys(reserved_mem_pgstart) to 0xFFFFFFFF:
* Reserved for special memory mappings
*/
uint32_t reserved_mem_pgstart;
/*
* 0x100000000 to page_to_phys(high_mem_pgend)-1:
* RAM above 4GB
*/
uint32_t high_mem_pgend;
/* Bitmap of which CPUs are online at boot time. */
uint8_t vcpu_online[(HVM_MAX_VCPUS + 7)/8];
};
#endif /* __XEN_PUBLIC_HVM_HVM_INFO_TABLE_H__ */