diff options
| author | Isaku Yamahata <yamahata@valinux.co.jp> | 2009-03-04 13:06:51 +0100 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2009-03-26 19:02:31 +0100 |
| commit | bf7ab02f620c1020c869fc71a2c855918b6a5375 (patch) | |
| tree | 9b6ac860fc762869069d9605f5c52c0199e642e5 /arch/ia64/kernel/paravirtentry.S | |
| parent | ia64/pv_ops/xen/gate.S: xen gate page paravirtualization (diff) | |
| download | linux-bf7ab02f620c1020c869fc71a2c855918b6a5375.tar.xz linux-bf7ab02f620c1020c869fc71a2c855918b6a5375.zip | |
ia64/pv_op/binarypatch: add helper functions to support binary patching for paravirt_ops.
add helper functions to support binary patching for paravirt_ops.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/paravirtentry.S')
| -rw-r--r-- | arch/ia64/kernel/paravirtentry.S | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/ia64/kernel/paravirtentry.S b/arch/ia64/kernel/paravirtentry.S index 2f42fcb9776a..80c0d365cbc0 100644 --- a/arch/ia64/kernel/paravirtentry.S +++ b/arch/ia64/kernel/paravirtentry.S @@ -58,3 +58,59 @@ BRANCH_PROC(switch_to, r22, b7) BRANCH_PROC_UNWINFO(leave_syscall, r22, b7) BRANCH_PROC(work_processed_syscall, r2, b7) BRANCH_PROC_UNWINFO(leave_kernel, r22, b7) + + +#ifdef CONFIG_MODULES +#define __INIT_OR_MODULE .text +#define __INITDATA_OR_MODULE .data +#else +#define __INIT_OR_MODULE __INIT +#define __INITDATA_OR_MODULE __INITDATA +#endif /* CONFIG_MODULES */ + + __INIT_OR_MODULE + GLOBAL_ENTRY(paravirt_fc_i) + fc.i r32 + br.ret.sptk.many rp + END(paravirt_fc_i) + __FINIT + + __INIT_OR_MODULE + .align 32 + GLOBAL_ENTRY(paravirt_nop_b_inst_bundle) + { + nop.b 0 + nop.b 0 + nop.b 0 + } + END(paravirt_nop_b_inst_bundle) + __FINIT + + /* NOTE: nop.[mfi] has same format */ + __INIT_OR_MODULE + GLOBAL_ENTRY(paravirt_nop_mfi_inst_bundle) + { + nop.m 0 + nop.f 0 + nop.i 0 + } + END(paravirt_nop_mfi_inst_bundle) + __FINIT + + __INIT_OR_MODULE + GLOBAL_ENTRY(paravirt_nop_bundle) +paravirt_nop_bundle_start: + { + nop 0 + nop 0 + nop 0 + } +paravirt_nop_bundle_end: + END(paravirt_nop_bundle) + __FINIT + + __INITDATA_OR_MODULE + .align 8 + .global paravirt_nop_bundle_size +paravirt_nop_bundle_size: + data8 paravirt_nop_bundle_end - paravirt_nop_bundle_start |