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| author | Isaku Yamahata <yamahata@valinux.co.jp> | 2009-03-04 21:05:42 +0900 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2009-03-26 10:51:02 -0700 |
| commit | e4ff5b8f545811008123dd9556a51d814f562fcf (patch) | |
| tree | 2c308a3b1cc002f0d345ed64dd94a395678543bb /arch/ia64/include/asm/paravirt.h | |
| parent | 1aec1c558a797512e922581b21a178a05438bfc9 (diff) | |
| download | linux-e4ff5b8f545811008123dd9556a51d814f562fcf.tar.gz linux-e4ff5b8f545811008123dd9556a51d814f562fcf.tar.bz2 linux-e4ff5b8f545811008123dd9556a51d814f562fcf.zip | |
ia64/pv_ops: gate page paravirtualization.
paravirtualize gate page by allowing each pv_ops instances
to define its own gate page.
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/paravirt.h')
| -rw-r--r-- | arch/ia64/include/asm/paravirt.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/paravirt.h b/arch/ia64/include/asm/paravirt.h index a73e77add7e2..fc433f6c3275 100644 --- a/arch/ia64/include/asm/paravirt.h +++ b/arch/ia64/include/asm/paravirt.h @@ -35,6 +35,41 @@ extern struct pv_fsys_data pv_fsys_data; unsigned long *paravirt_get_fsyscall_table(void); char *paravirt_get_fsys_bubble_down(void); + +/****************************************************************************** + * patchlist addresses for gate page + */ +enum pv_gate_patchlist { + PV_GATE_START_FSYSCALL, + PV_GATE_END_FSYSCALL, + + PV_GATE_START_BRL_FSYS_BUBBLE_DOWN, + PV_GATE_END_BRL_FSYS_BUBBLE_DOWN, + + PV_GATE_START_VTOP, + PV_GATE_END_VTOP, + + PV_GATE_START_MCKINLEY_E9, + PV_GATE_END_MCKINLEY_E9, +}; + +struct pv_patchdata { + unsigned long start_fsyscall_patchlist; + unsigned long end_fsyscall_patchlist; + unsigned long start_brl_fsys_bubble_down_patchlist; + unsigned long end_brl_fsys_bubble_down_patchlist; + unsigned long start_vtop_patchlist; + unsigned long end_vtop_patchlist; + unsigned long start_mckinley_e9_patchlist; + unsigned long end_mckinley_e9_patchlist; + + void *gate_section; +}; + +extern struct pv_patchdata pv_patchdata; + +unsigned long paravirt_get_gate_patchlist(enum pv_gate_patchlist type); +void *paravirt_get_gate_section(void); #endif #ifdef CONFIG_PARAVIRT_GUEST |