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/******************************************************************************
* 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
#define PARAVIRT_HYPERVISOR_TYPE_DEFAULT 0
#define PARAVIRT_HYPERVISOR_TYPE_XEN 1
#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;
}
/******************************************************************************
* initialization hooks.
*/
struct rsvd_region;
struct pv_init_ops {
void (*banner)(void);
int (*reserve_memory)(struct rsvd_region *region);
void (*arch_setup_early)(void);
void (*arch_setup_console)(char **cmdline_p);
int (*arch_setup_nomca)(void);
void (*post_smp_prepare_boot_cpu)(void);
};
extern struct pv_init_ops pv_init_ops;
static inline void paravirt_banner(void)
{
if (pv_init_ops.banner)
pv_init_ops.banner();
}
static inline int paravirt_reserve_memory(struct rsvd_region *region)
{
if (pv_init_ops.reserve_memory)
return pv_init_ops.reserve_memory(region);
return 0;
}
static inline void paravirt_arch_setup_early(void)
{
if (pv_init_ops.arch_setup_early)
pv_init_ops.arch_setup_early();
}
static inline void paravirt_arch_setup_console(char **cmdline_p)
{
if (pv_init_ops.arch_setup_console)
pv_init_ops.arch_setup_console(cmdline_p);
}
static inline int paravirt_arch_setup_nomca(void)
{
if (pv_init_ops.arch_setup_nomca)
return pv_init_ops.arch_setup_nomca();
return 0;
}
static inline void paravirt_post_smp_prepare_boot_cpu(void)
{
if (pv_init_ops.post_smp_prepare_boot_cpu)
pv_init_ops.post_smp_prepare_boot_cpu();
}
#endif /* !__ASSEMBLY__ */
#else
/* fallback for native case */
#ifndef __ASSEMBLY__
#define paravirt_banner() do { } while (0)
#define paravirt_reserve_memory(region) 0
#define paravirt_arch_setup_early() do { } while (0)
#define paravirt_arch_setup_console(cmdline_p) do { } while (0)
#define paravirt_arch_setup_nomca() 0
#define paravirt_post_smp_prepare_boot_cpu() do { } while (0)
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_PARAVIRT_GUEST */
#endif /* __ASM_PARAVIRT_H */
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