freebsd-dev/sys/x86/include/init.h
Roger Pau Monné 079f7ef839 xen: add a hook to perform AP startup
AP startup on PVH follows the PV method, so we need to add a hook in
order to diverge from bare metal.

Approved by: gibbs
Sponsored by: Citrix Systems R&D

amd64/amd64/machdep.c:
 - Add hook for start_all_aps on native (using native_start_all_aps
   defined in mp_machdep).

amd64/amd64/mp_machdep.c:
 - Make some variables global because they will also be used by the
   Xen PVH AP startup code.
 - Use the start_all_aps hook to start APs.
 - Rename start_all_aps to native_start_all_aps.

amd64/include/smp.h:
 - Add declaration for native_start_all_aps.

x86/include/init.h:
 - Declare start_all_aps hook in init_ops.

x86/xen/pv.c:
 - Pick external declarations from mp_machdep.
 - Introduce Xen PV code to start APs on PVH.
 - Set start_all_aps init hook to use the Xen PVH implementation.
2014-03-11 10:27:57 +00:00

49 lines
1.9 KiB
C

/*-
* Copyright (c) 2013 Roger Pau Monné <roger.pau@citrix.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef __X86_INIT_H__
#define __X86_INIT_H__
/*
* Struct containing pointers to init functions whose
* implementation is run time selectable. Selection can be made,
* for example, based on detection of a BIOS variant or
* hypervisor environment.
*/
struct init_ops {
caddr_t (*parse_preload_data)(u_int64_t);
void (*early_clock_source_init)(void);
void (*early_delay)(int);
void (*parse_memmap)(caddr_t, vm_paddr_t *, int *);
u_int (*mp_bootaddress)(u_int);
int (*start_all_aps)(void);
};
extern struct init_ops init_ops;
#endif /* __X86_INIT_H__ */