KVM: ia64: Prepare some structure and routines for kvm use

Register structures are defined per SDM.
Add three small routines for kernel:
ia64_ttag, ia64_loadrs, ia64_flushrs

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h
index 741f7ecb986a..6aff126fc07e 100644
--- a/include/asm-ia64/processor.h
+++ b/include/asm-ia64/processor.h
@@ -119,6 +119,69 @@ struct ia64_psr {
         __u64 reserved4 : 19;
 };
 
+union ia64_isr {
+        __u64  val;
+        struct {
+                __u64 code : 16;
+                __u64 vector : 8;
+                __u64 reserved1 : 8;
+                __u64 x : 1;
+                __u64 w : 1;
+                __u64 r : 1;
+                __u64 na : 1;
+                __u64 sp : 1;
+                __u64 rs : 1;
+                __u64 ir : 1;
+                __u64 ni : 1;
+                __u64 so : 1;
+                __u64 ei : 2;
+                __u64 ed : 1;
+                __u64 reserved2 : 20;
+        };
+};
+
+union ia64_lid {
+        __u64 val;
+        struct {
+                __u64  rv  : 16;
+                __u64  eid : 8;
+                __u64  id  : 8;
+                __u64  ig  : 32;
+        };
+};
+
+union ia64_tpr {
+        __u64 val;
+        struct {
+                __u64 ig0 : 4;
+                __u64 mic : 4;
+                __u64 rsv : 8;
+                __u64 mmi : 1;
+                __u64 ig1 : 47;
+        };
+};
+
+union ia64_itir {
+        __u64 val;
+        struct {
+                __u64 rv3  :  2; /* 0-1 */
+                __u64 ps   :  6; /* 2-7 */
+                __u64 key  : 24; /* 8-31 */
+                __u64 rv4  : 32; /* 32-63 */
+        };
+};
+
+union  ia64_rr {
+        __u64 val;
+        struct {
+                __u64  ve       :  1;  /* enable hw walker */
+                __u64  reserved0:  1;  /* reserved */
+                __u64  ps       :  6;  /* log page size */
+                __u64  rid      : 24;  /* region id */
+                __u64  reserved1: 32;  /* reserved */
+        };
+};
+
 /*
  * CPU type, hardware bug flags, and per-CPU state.  Frequently used
  * state comes earlier: