|
|
|
|
/******************************************************************************
|
|
|
|
|
* linux/arch/ia64/xen/paravirtentry.S
|
|
|
|
|
*
|
|
|
|
|
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
|
|
|
|
* VA Linux Systems Japan K.K.
|
|
|
|
|
*
|
|
|
|
|
* This program 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 2 of the License, or
|
|
|
|
|
* (at your option) any later version.
|
|
|
|
|
*
|
|
|
|
|
* This program 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 this program; if not, write to the Free Software
|
|
|
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <asm/asmmacro.h>
|
|
|
|
|
#include <asm/asm-offsets.h>
|
|
|
|
|
#include "entry.h"
|
|
|
|
|
|
|
|
|
|
#define DATA8(sym, init_value) \
|
|
|
|
|
.pushsection .data.read_mostly ; \
|
|
|
|
|
.align 8 ; \
|
|
|
|
|
.global sym ; \
|
|
|
|
|
sym: ; \
|
|
|
|
|
data8 init_value ; \
|
|
|
|
|
.popsection
|
|
|
|
|
|
|
|
|
|
#define BRANCH(targ, reg, breg) \
|
|
|
|
|
movl reg=targ ; \
|
|
|
|
|
;; \
|
|
|
|
|
ld8 reg=[reg] ; \
|
|
|
|
|
;; \
|
|
|
|
|
mov breg=reg ; \
|
|
|
|
|
br.cond.sptk.many breg
|
|
|
|
|
|
|
|
|
|
#define BRANCH_PROC(sym, reg, breg) \
|
|
|
|
|
DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
|
|
|
|
|
GLOBAL_ENTRY(paravirt_ ## sym) ; \
|
|
|
|
|
BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \
|
|
|
|
|
END(paravirt_ ## sym)
|
|
|
|
|
|
|
|
|
|
#define BRANCH_PROC_UNWINFO(sym, reg, breg) \
|
|
|
|
|
DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
|
|
|
|
|
GLOBAL_ENTRY(paravirt_ ## sym) ; \
|
|
|
|
|
PT_REGS_UNWIND_INFO(0) ; \
|
|
|
|
|
BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \
|
|
|
|
|
END(paravirt_ ## sym)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
BRANCH_PROC(switch_to, r22, b7)
|
|
|
|
|
BRANCH_PROC_UNWINFO(leave_syscall, r22, b7)
|
|
|
|
|
BRANCH_PROC(work_processed_syscall, r2, b7)
|
|
|
|
|
BRANCH_PROC_UNWINFO(leave_kernel, r22, b7)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_MODULES
|
|
|
|
|
#define __INIT_OR_MODULE .text
|
|
|
|
|
#define __INITDATA_OR_MODULE .data
|
|
|
|
|
#else
|
|
|
|
|
#define __INIT_OR_MODULE __INIT
|
|
|
|
|
#define __INITDATA_OR_MODULE __INITDATA
|
|
|
|
|
#endif /* CONFIG_MODULES */
|
|
|
|
|
|
|
|
|
|
__INIT_OR_MODULE
|
|
|
|
|
GLOBAL_ENTRY(paravirt_fc_i)
|
|
|
|
|
fc.i r32
|
|
|
|
|
br.ret.sptk.many rp
|
|
|
|
|
END(paravirt_fc_i)
|
|
|
|
|
__FINIT
|
|
|
|
|
|
|
|
|
|
__INIT_OR_MODULE
|
|
|
|
|
.align 32
|
|
|
|
|
GLOBAL_ENTRY(paravirt_nop_b_inst_bundle)
|
|
|
|
|
{
|
|
|
|
|
nop.b 0
|
|
|
|
|
nop.b 0
|
|
|
|
|
nop.b 0
|
|
|
|
|
}
|
|
|
|
|
END(paravirt_nop_b_inst_bundle)
|
|
|
|
|
__FINIT
|
|
|
|
|
|
|
|
|
|
/* NOTE: nop.[mfi] has same format */
|
|
|
|
|
__INIT_OR_MODULE
|
|
|
|
|
GLOBAL_ENTRY(paravirt_nop_mfi_inst_bundle)
|
|
|
|
|
{
|
|
|
|
|
nop.m 0
|
|
|
|
|
nop.f 0
|
|
|
|
|
nop.i 0
|
|
|
|
|
}
|
|
|
|
|
END(paravirt_nop_mfi_inst_bundle)
|
|
|
|
|
__FINIT
|
|
|
|
|
|
|
|
|
|
__INIT_OR_MODULE
|
|
|
|
|
GLOBAL_ENTRY(paravirt_nop_bundle)
|
|
|
|
|
paravirt_nop_bundle_start:
|
|
|
|
|
{
|
|
|
|
|
nop 0
|
|
|
|
|
nop 0
|
|
|
|
|
nop 0
|
|
|
|
|
}
|
|
|
|
|
paravirt_nop_bundle_end:
|
|
|
|
|
END(paravirt_nop_bundle)
|
|
|
|
|
__FINIT
|
|
|
|
|
|
|
|
|
|
__INITDATA_OR_MODULE
|
|
|
|
|
.align 8
|
|
|
|
|
.global paravirt_nop_bundle_size
|
|
|
|
|
paravirt_nop_bundle_size:
|
|
|
|
|
data8 paravirt_nop_bundle_end - paravirt_nop_bundle_start
|
