diff options
author | Isaku Yamahata <yamahata@valinux.co.jp> | 2008-05-19 22:13:32 +0900 |
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committer | Tony Luck <tony.luck@intel.com> | 2008-05-27 14:39:30 -0700 |
commit | 90aeb169c03a96e22674741f08054023c33d595b (patch) | |
tree | dc2a45abcc80904444057a4ca800a10a8f6a52b3 /include/asm-ia64 | |
parent | 72cb4256c7574e1c2c1350fa92eecd7cef9e4772 (diff) | |
download | op-kernel-dev-90aeb169c03a96e22674741f08054023c33d595b.zip op-kernel-dev-90aeb169c03a96e22674741f08054023c33d595b.tar.gz |
[IA64] pvops: introduce pv_info which describes some random info.
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>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r-- | include/asm-ia64/paravirt.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/asm-ia64/paravirt.h b/include/asm-ia64/paravirt.h new file mode 100644 index 0000000..26b4334 --- /dev/null +++ b/include/asm-ia64/paravirt.h @@ -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 */ |