ia64/pv_ops: paravirtualize gate.S.

[linux-2.6-block.git] / arch / ia64 / kernel / gate.S

diff --git a/arch/ia64/kernel/gate.S b/arch/ia64/kernel/gate.S
index c957228e3f1d9b8e753ab953f590c417195ade8c..cf5e0a105e16521cf20f1fc6aa1957cf5af2e97f 100644 (file)
--- a/arch/ia64/kernel/gate.S
+++ b/arch/ia64/kernel/gate.S
@@ -13,6 +13,7 @@
 #include <asm/sigcontext.h>
 #include <asm/system.h>
 #include <asm/unistd.h>
+#include "paravirt_inst.h"
 
 /*
  * We can't easily refer to symbols inside the kernel.  To avoid full runtime relocation,
@@ -323,7 +324,7 @@ GLOBAL_ENTRY(__kernel_syscall_via_epc)
        epc                                     // B    causes split-issue
 }
        ;;
-       rsm psr.be | psr.i                      // M2 (5 cyc to srlz.d)
+       RSM_PSR_BE_I(r20, r22)                  // M2 (5 cyc to srlz.d)
        LOAD_FSYSCALL_TABLE(r14)                // X
        ;;
        mov r16=IA64_KR(CURRENT)                // M2 (12 cyc)
@@ -331,7 +332,7 @@ GLOBAL_ENTRY(__kernel_syscall_via_epc)
        mov r19=NR_syscalls-1                   // A
        ;;
        lfetch [r18]                            // M0|1
-       mov r29=psr                             // M2 (12 cyc)
+       MOV_FROM_PSR(p0, r29, r8)               // M2 (12 cyc)
        // If r17 is a NaT, p6 will be zero
        cmp.geu p6,p7=r19,r17                   // A    (sysnr > 0 && sysnr < 1024+NR_syscalls)?
        ;;
@@ -347,7 +348,7 @@ GLOBAL_ENTRY(__kernel_syscall_via_epc)
 (p6)   tbit.z.unc p8,p0=r18,0                  // I0 (dual-issues with "mov b7=r18"!)
        nop.i 0
        ;;
-(p8)   ssm psr.i
+       SSM_PSR_I(p8, p14, r25)
 (p6)   mov b7=r18                              // I0
 (p8)   br.dptk.many b7                         // B
 
@@ -368,9 +369,17 @@ GLOBAL_ENTRY(__kernel_syscall_via_epc)
 #else
        BRL_COND_FSYS_BUBBLE_DOWN(p6)
 #endif
-       ssm psr.i
+       SSM_PSR_I(p0, p14, r10)
        mov r10=-1
 (p10)  mov r8=EINVAL
 (p9)   mov r8=ENOSYS
        FSYS_RETURN
+
+#ifdef CONFIG_PARAVIRT
+       /*
+        * padd to make the size of this symbol constant
+        * independent of paravirtualization.
+        */
+       .align PAGE_SIZE / 8
+#endif
 END(__kernel_syscall_via_epc)