[Xen-changelog] [xen-unstable] 64-bit hvm on 32-bit dom0 - ioemu adjustments

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1179219591 -3600
# Node ID 3581a77791e3a4951174585fbc60510b5b6f01f9
# Parent  75b4c7cb007dd4cdf30321c4fbd2e67e885628c3
64-bit hvm on 32-bit dom0 - ioemu adjustments

Don't mask off data bits when running 64-bit hvm guests on 32-bit dom0.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
---
 tools/ioemu/target-i386-dm/helper2.c |   33 +++++++++++++++------------------
 1 files changed, 15 insertions(+), 18 deletions(-)

diff -r 75b4c7cb007d -r 3581a77791e3 tools/ioemu/target-i386-dm/helper2.c
--- a/tools/ioemu/target-i386-dm/helper2.c      Tue May 15 09:54:27 2007 +0100
+++ b/tools/ioemu/target-i386-dm/helper2.c      Tue May 15 09:59:51 2007 +0100
@@ -322,7 +322,7 @@ void cpu_ioreq_pio(CPUState *env, ioreq_
             do_outp(env, req->addr, req->size, req->data);
         } else {
             for (i = 0; i < req->count; i++) {
-                unsigned long tmp;
+                unsigned long tmp = 0;
 
                 read_physical((target_phys_addr_t) req->data
                   + (sign * i * req->size),
@@ -354,7 +354,7 @@ void cpu_ioreq_move(CPUState *env, ioreq
             }
         }
     } else {
-        unsigned long tmp;
+        target_ulong tmp;
 
         if (req->dir == IOREQ_READ) {
             for (i = 0; i < req->count; i++) {
@@ -380,14 +380,14 @@ void cpu_ioreq_move(CPUState *env, ioreq
 
 void cpu_ioreq_and(CPUState *env, ioreq_t *req)
 {
-    unsigned long tmp1, tmp2;
+    target_ulong tmp1, tmp2;
 
     if (req->data_is_ptr != 0)
         hw_error("expected scalar value");
 
     read_physical(req->addr, req->size, &tmp1);
     if (req->dir == IOREQ_WRITE) {
-        tmp2 = tmp1 & (unsigned long) req->data;
+        tmp2 = tmp1 & (target_ulong) req->data;
         write_physical(req->addr, req->size, &tmp2);
     }
     req->data = tmp1;
@@ -395,14 +395,14 @@ void cpu_ioreq_and(CPUState *env, ioreq_
 
 void cpu_ioreq_add(CPUState *env, ioreq_t *req)
 {
-    unsigned long tmp1, tmp2;
+    target_ulong tmp1, tmp2;
 
     if (req->data_is_ptr != 0)
         hw_error("expected scalar value");
 
     read_physical(req->addr, req->size, &tmp1);
     if (req->dir == IOREQ_WRITE) {
-        tmp2 = tmp1 + (unsigned long) req->data;
+        tmp2 = tmp1 + (target_ulong) req->data;
         write_physical(req->addr, req->size, &tmp2);
     }
     req->data = tmp1;
@@ -410,14 +410,14 @@ void cpu_ioreq_add(CPUState *env, ioreq_
 
 void cpu_ioreq_sub(CPUState *env, ioreq_t *req)
 {
-    unsigned long tmp1, tmp2;
+    target_ulong tmp1, tmp2;
 
     if (req->data_is_ptr != 0)
         hw_error("expected scalar value");
 
     read_physical(req->addr, req->size, &tmp1);
     if (req->dir == IOREQ_WRITE) {
-        tmp2 = tmp1 - (unsigned long) req->data;
+        tmp2 = tmp1 - (target_ulong) req->data;
         write_physical(req->addr, req->size, &tmp2);
     }
     req->data = tmp1;
@@ -425,14 +425,14 @@ void cpu_ioreq_sub(CPUState *env, ioreq_
 
 void cpu_ioreq_or(CPUState *env, ioreq_t *req)
 {
-    unsigned long tmp1, tmp2;
+    target_ulong tmp1, tmp2;
 
     if (req->data_is_ptr != 0)
         hw_error("expected scalar value");
 
     read_physical(req->addr, req->size, &tmp1);
     if (req->dir == IOREQ_WRITE) {
-        tmp2 = tmp1 | (unsigned long) req->data;
+        tmp2 = tmp1 | (target_ulong) req->data;
         write_physical(req->addr, req->size, &tmp2);
     }
     req->data = tmp1;
@@ -440,14 +440,14 @@ void cpu_ioreq_or(CPUState *env, ioreq_t
 
 void cpu_ioreq_xor(CPUState *env, ioreq_t *req)
 {
-    unsigned long tmp1, tmp2;
+    target_ulong tmp1, tmp2;
 
     if (req->data_is_ptr != 0)
         hw_error("expected scalar value");
 
     read_physical(req->addr, req->size, &tmp1);
     if (req->dir == IOREQ_WRITE) {
-        tmp2 = tmp1 ^ (unsigned long) req->data;
+        tmp2 = tmp1 ^ (target_ulong) req->data;
         write_physical(req->addr, req->size, &tmp2);
     }
     req->data = tmp1;
@@ -495,12 +495,9 @@ void cpu_ioreq_xchg(CPUState *env, ioreq
 
 void __handle_ioreq(CPUState *env, ioreq_t *req)
 {
-    if (!req->data_is_ptr && (req->dir == IOREQ_WRITE)) {
-        /* Clamp data operand to size of a long. */
-        if (req->size < sizeof(long))
-            req->data &= (1UL << (8 * req->size)) - 1;
-        req->data = (unsigned long)req->data;
-    }
+    if (!req->data_is_ptr && (req->dir == IOREQ_WRITE) &&
+        (req->size < sizeof(target_ulong)))
+        req->data &= ((target_ulong)1 << (8 * req->size)) - 1;
 
     switch (req->type) {
     case IOREQ_TYPE_PIO:

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