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[IA64] pvops: introduce pv_info which describes some random info.

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introduce pv_info which describes some randome info about
underlying execution environment.

Cc: Jes Sorensen <jes@sgi.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Isaku Yamahata 2008-05-19 22:13:32 +09:00 committed by Tony Luck
parent 72cb4256c7
commit 90aeb169c0
3 changed files with 105 additions and 0 deletions
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2
arch/ia64/kernel/Makefile
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@ -36,6 +36,8 @@ obj-$(CONFIG_PCI_MSI) += msi_ia64.o
mca_recovery-y += mca_drv.o mca_drv_asm.o
obj-$(CONFIG_IA64_MC_ERR_INJECT)+= err_inject.o
obj-$(CONFIG_PARAVIRT) += paravirt.o
obj-$(CONFIG_IA64_ESI) += esi.o
ifneq ($(CONFIG_IA64_ESI),)
obj-y += esi_stub.o # must be in kernel proper

41
arch/ia64/kernel/paravirt.c Normal file
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@ -0,0 +1,41 @@
/******************************************************************************
* arch/ia64/kernel/paravirt.c
*
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
* Yaozu (Eddie) Dong <eddie.dong@intel.com>
*
* 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 <linux/init.h>
#include <linux/compiler.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/types.h>
#include <asm/iosapic.h>
#include <asm/paravirt.h>
/***************************************************************************
* general info
*/
struct pv_info pv_info = {
.kernel_rpl = 0,
.paravirt_enabled = 0,
.name = "bare hardware"
};

62
include/asm-ia64/paravirt.h Normal file
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@ -0,0 +1,62 @@
/******************************************************************************
* include/asm-ia64/paravirt.h
*
* 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
*
*/
#ifndef __ASM_PARAVIRT_H
#define __ASM_PARAVIRT_H
#ifdef CONFIG_PARAVIRT_GUEST
#ifndef __ASSEMBLY__
#include <asm/hw_irq.h>
#include <asm/meminit.h>
/******************************************************************************
* general info
*/
struct pv_info {
unsigned int kernel_rpl;
int paravirt_enabled;
const char *name;
};
extern struct pv_info pv_info;
static inline int paravirt_enabled(void)
{
return pv_info.paravirt_enabled;
}
static inline unsigned int get_kernel_rpl(void)
{
return pv_info.kernel_rpl;
}
#endif /* !__ASSEMBLY__ */
#else
/* fallback for native case */
#endif /* CONFIG_PARAVIRT_GUEST */
#endif /* __ASM_PARAVIRT_H */