diff options
| author | Isaku Yamahata <yamahata@valinux.co.jp> | 2009-03-04 21:05:39 +0900 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2009-03-26 10:50:32 -0700 |
| commit | 496203b15b7249599712525c2b6aafe231b4628d (patch) | |
| tree | ee8c5dbe02b820ac208fe6f3b7982a49a502cc28 /arch/ia64/include/asm/xen/interface.h | |
| parent | 94752a794ddfdef65289a16627faefa7e2e62d58 (diff) | |
ia64/pv_ops/xen: paravirtualize read/write ar.itc and ar.itm
paravirtualize ar.itc and ar.itm in order to support save/restore.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/include/asm/xen/interface.h')
| -rw-r--r-- | arch/ia64/include/asm/xen/interface.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h index f00fab40854..e951e740bdf 100644 --- a/arch/ia64/include/asm/xen/interface.h +++ b/arch/ia64/include/asm/xen/interface.h @@ -209,6 +209,15 @@ struct mapped_regs { unsigned long krs[8]; /* kernel registers */ unsigned long tmp[16]; /* temp registers (e.g. for hyperprivops) */ + + /* itc paravirtualization + * vAR.ITC = mAR.ITC + itc_offset + * itc_last is one which was lastly passed to + * the guest OS in order to prevent it from + * going backwords. + */ + unsigned long itc_offset; + unsigned long itc_last; }; }; }; |