2 files changed, 47 insertions, 4 deletions

diff --git a/arch/powerpc/platforms/iseries/exception.S b/arch/powerpc/platforms/iseries/exception.S
index 5381038f0881..c775cd4b3d6e 100644
--- a/arch/powerpc/platforms/iseries/exception.S
+++ b/arch/powerpc/platforms/iseries/exception.S
@@ -38,11 +38,19 @@
 
         .globl system_reset_iSeries
 system_reset_iSeries:
-        mfspr   r13,SPRN_SPRG3          /* Get paca address */
+        mfspr   r13,SPRN_SPRG3          /* Get alpaca address */
+        LOAD_REG_IMMEDIATE(r23, alpaca)
+        li      r0,ALPACA_SIZE
+        sub     r23,r13,r23
+        divdu   r23,r23,r0              /* r23 has cpu number */
+        LOAD_REG_IMMEDIATE(r13, paca)
+        mulli   r0,r23,PACA_SIZE
+        add     r13,r13,r0
+        mtspr   SPRN_SPRG3,r13          /* Save it away for the future */
         mfmsr   r24
         ori     r24,r24,MSR_RI
         mtmsrd  r24                     /* RI on */
-        lhz     r24,PACAPACAINDEX(r13)  /* Get processor # */
+        mr      r24,r23
         cmpwi   0,r24,0                 /* Are we processor 0? */
         bne     1f
         b       .__start_initialization_iSeries /* Start up the first processor */
diff --git a/arch/powerpc/platforms/iseries/lpardata.c b/arch/powerpc/platforms/iseries/lpardata.c
index 8162049bb04d..dc8470850a81 100644
--- a/arch/powerpc/platforms/iseries/lpardata.c
+++ b/arch/powerpc/platforms/iseries/lpardata.c
@@ -18,6 +18,7 @@
 #include <asm/paca.h>
 #include <asm/iseries/lpar_map.h>
 #include <asm/iseries/it_lp_queue.h>
+#include <asm/iseries/alpaca.h>
 
 #include "naca.h"
 #include "vpd_areas.h"
@@ -159,6 +160,40 @@ struct SpCommArea xSpCommArea = {
         .xFormat = 1,
 };
 
+#define ALPACA_INIT(number)                                             \
+{                                                                       \
+        .lppaca_ptr = &lppaca[number],                                  \
+        .reg_save_ptr = &iseries_reg_save[number],                      \
+}
+
+struct alpaca alpaca[] = {
+        ALPACA_INIT( 0),
+#if NR_CPUS > 1
+        ALPACA_INIT( 1), ALPACA_INIT( 2), ALPACA_INIT( 3),
+#if NR_CPUS > 4
+        ALPACA_INIT( 4), ALPACA_INIT( 5), ALPACA_INIT( 6), ALPACA_INIT( 7),
+#if NR_CPUS > 8
+        ALPACA_INIT( 8), ALPACA_INIT( 9), ALPACA_INIT(10), ALPACA_INIT(11),
+        ALPACA_INIT(12), ALPACA_INIT(13), ALPACA_INIT(14), ALPACA_INIT(15),
+        ALPACA_INIT(16), ALPACA_INIT(17), ALPACA_INIT(18), ALPACA_INIT(19),
+        ALPACA_INIT(20), ALPACA_INIT(21), ALPACA_INIT(22), ALPACA_INIT(23),
+        ALPACA_INIT(24), ALPACA_INIT(25), ALPACA_INIT(26), ALPACA_INIT(27),
+        ALPACA_INIT(28), ALPACA_INIT(29), ALPACA_INIT(30), ALPACA_INIT(31),
+#if NR_CPUS > 32
+        ALPACA_INIT(32), ALPACA_INIT(33), ALPACA_INIT(34), ALPACA_INIT(35),
+        ALPACA_INIT(36), ALPACA_INIT(37), ALPACA_INIT(38), ALPACA_INIT(39),
+        ALPACA_INIT(40), ALPACA_INIT(41), ALPACA_INIT(42), ALPACA_INIT(43),
+        ALPACA_INIT(44), ALPACA_INIT(45), ALPACA_INIT(46), ALPACA_INIT(47),
+        ALPACA_INIT(48), ALPACA_INIT(49), ALPACA_INIT(50), ALPACA_INIT(51),
+        ALPACA_INIT(52), ALPACA_INIT(53), ALPACA_INIT(54), ALPACA_INIT(55),
+        ALPACA_INIT(56), ALPACA_INIT(57), ALPACA_INIT(58), ALPACA_INIT(59),
+        ALPACA_INIT(60), ALPACA_INIT(61), ALPACA_INIT(62), ALPACA_INIT(63),
+#endif
+#endif
+#endif
+#endif
+};
+
 /* The LparMap data is now located at offset 0x6000 in head.S
  * It was put there so that the HvReleaseData could address it
  * with a 32-bit offset as required by the iSeries hypervisor
@@ -185,7 +220,7 @@ struct ItVpdAreas itVpdAreas = {
         .xSlicVpdLens = {                       /* VPD lengths */
                 0,0,0,                  /*  0 - 2 */
                 sizeof(xItExtVpdPanel), /*       3 Extended VPD   */
-                sizeof(struct paca_struct),     /*       4 length of Paca  */
+                sizeof(struct alpaca),  /*       4 length of (fake) Paca  */
                 0,                      /*       5 */
                 sizeof(struct ItIplParmsReal),/* 6 length of IPL parms */
                 26992,                  /*       7 length of MS VPD */
@@ -203,7 +238,7 @@ struct ItVpdAreas itVpdAreas = {
         .xSlicVpdAdrs = {                       /* VPD addresses */
                 0,0,0,                  /*       0 -  2 */
                 &xItExtVpdPanel,        /*       3 Extended VPD */
-                &paca[0],               /*       4 first Paca */
+                &alpaca[0],             /*       4 first (fake) Paca */
                 0,                      /*       5 */
                 &xItIplParmsReal,       /*       6 IPL parms */
                 &xMsVpd,                /*       7 MS Vpd */