diff options
Diffstat (limited to 'arch/ia64/kernel/paravirtentry.S')
| -rw-r--r-- | arch/ia64/kernel/paravirtentry.S | 99 |
1 files changed, 80 insertions, 19 deletions
diff --git a/arch/ia64/kernel/paravirtentry.S b/arch/ia64/kernel/paravirtentry.S index 2f42fcb9776a..6158560d7f17 100644 --- a/arch/ia64/kernel/paravirtentry.S +++ b/arch/ia64/kernel/paravirtentry.S @@ -20,8 +20,11 @@ * */ +#include <linux/init.h> #include <asm/asmmacro.h> #include <asm/asm-offsets.h> +#include <asm/paravirt_privop.h> +#include <asm/paravirt_patch.h> #include "entry.h" #define DATA8(sym, init_value) \ @@ -32,29 +35,87 @@ data8 init_value ; \ .popsection -#define BRANCH(targ, reg, breg) \ - movl reg=targ ; \ - ;; \ - ld8 reg=[reg] ; \ - ;; \ - mov breg=reg ; \ +#define BRANCH(targ, reg, breg, type) \ + PARAVIRT_PATCH_SITE_BR(PARAVIRT_PATCH_TYPE_BR_ ## type) ; \ + ;; \ + movl reg=targ ; \ + ;; \ + ld8 reg=[reg] ; \ + ;; \ + mov breg=reg ; \ br.cond.sptk.many breg -#define BRANCH_PROC(sym, reg, breg) \ - DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \ - GLOBAL_ENTRY(paravirt_ ## sym) ; \ - BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \ +#define BRANCH_PROC(sym, reg, breg, type) \ + DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \ + GLOBAL_ENTRY(paravirt_ ## sym) ; \ + BRANCH(paravirt_ ## sym ## _targ, reg, breg, type) ; \ END(paravirt_ ## sym) -#define BRANCH_PROC_UNWINFO(sym, reg, breg) \ - DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \ - GLOBAL_ENTRY(paravirt_ ## sym) ; \ - PT_REGS_UNWIND_INFO(0) ; \ - BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \ +#define BRANCH_PROC_UNWINFO(sym, reg, breg, type) \ + DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \ + GLOBAL_ENTRY(paravirt_ ## sym) ; \ + PT_REGS_UNWIND_INFO(0) ; \ + BRANCH(paravirt_ ## sym ## _targ, reg, breg, type) ; \ END(paravirt_ ## sym) -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) +BRANCH_PROC(switch_to, r22, b7, SWITCH_TO) +BRANCH_PROC_UNWINFO(leave_syscall, r22, b7, LEAVE_SYSCALL) +BRANCH_PROC(work_processed_syscall, r2, b7, WORK_PROCESSED_SYSCALL) +BRANCH_PROC_UNWINFO(leave_kernel, r22, b7, LEAVE_KERNEL) + + +#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 |