diff options
| author | Isaku Yamahata <yamahata@valinux.co.jp> | 2009-03-04 21:05:34 +0900 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2009-03-26 10:48:33 -0700 |
| commit | dd97d5cb540939602cba9af6f88e883a6fe451f0 (patch) | |
| tree | 8425ba5692e3fe9175ed10ce85d02ef4a77dedd8 /arch/ia64/kernel/patch.c | |
| parent | ac93925acbf841d70a95ab576b76b15a34d194eb (diff) | |
ia64/pv_ops: add hooks to paravirtualize fsyscall implementation.
Add two hooks, paravirt_get_fsyscall_table() and
paravirt_get_fsys_bubble_doen() to paravirtualize fsyscall implementation.
This patch just add the hooks fsyscall and don't paravirtualize it.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/patch.c')
| -rw-r--r-- | arch/ia64/kernel/patch.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/arch/ia64/kernel/patch.c b/arch/ia64/kernel/patch.c index b83b2c51600..02dd977436f 100644 --- a/arch/ia64/kernel/patch.c +++ b/arch/ia64/kernel/patch.c @@ -7,6 +7,7 @@ #include <linux/init.h> #include <linux/string.h> +#include <asm/paravirt.h> #include <asm/patch.h> #include <asm/processor.h> #include <asm/sections.h> @@ -169,16 +170,35 @@ ia64_patch_mckinley_e9 (unsigned long start, unsigned long end) ia64_srlz_i(); } +extern unsigned long ia64_native_fsyscall_table[NR_syscalls]; +extern char ia64_native_fsys_bubble_down[]; +struct pv_fsys_data pv_fsys_data __initdata = { + .fsyscall_table = (unsigned long *)ia64_native_fsyscall_table, + .fsys_bubble_down = (void *)ia64_native_fsys_bubble_down, +}; + +unsigned long * __init +paravirt_get_fsyscall_table(void) +{ + return pv_fsys_data.fsyscall_table; +} + +char * __init +paravirt_get_fsys_bubble_down(void) +{ + return pv_fsys_data.fsys_bubble_down; +} + static void __init patch_fsyscall_table (unsigned long start, unsigned long end) { - extern unsigned long fsyscall_table[NR_syscalls]; + u64 fsyscall_table = (u64)paravirt_get_fsyscall_table(); s32 *offp = (s32 *) start; u64 ip; while (offp < (s32 *) end) { ip = (u64) ia64_imva((char *) offp + *offp); - ia64_patch_imm64(ip, (u64) fsyscall_table); + ia64_patch_imm64(ip, fsyscall_table); ia64_fc((void *) ip); ++offp; } @@ -189,7 +209,7 @@ patch_fsyscall_table (unsigned long start, unsigned long end) static void __init patch_brl_fsys_bubble_down (unsigned long start, unsigned long end) { - extern char fsys_bubble_down[]; + u64 fsys_bubble_down = (u64)paravirt_get_fsys_bubble_down(); s32 *offp = (s32 *) start; u64 ip; |