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[Qemu-devel] [5148] Implement no-fault loads
From: |
Blue Swirl |
Subject: |
[Qemu-devel] [5148] Implement no-fault loads |
Date: |
Wed, 03 Sep 2008 17:32:11 +0000 |
Revision: 5148
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5148
Author: blueswir1
Date: 2008-09-03 17:32:10 +0000 (Wed, 03 Sep 2008)
Log Message:
-----------
Implement no-fault loads
Modified Paths:
--------------
trunk/target-sparc/op_helper.c
Modified: trunk/target-sparc/op_helper.c
===================================================================
--- trunk/target-sparc/op_helper.c 2008-09-03 14:40:17 UTC (rev 5147)
+++ trunk/target-sparc/op_helper.c 2008-09-03 17:32:10 UTC (rev 5148)
@@ -1402,10 +1402,17 @@
address_mask(env, &addr);
switch (asi) {
+ case 0x82: // Primary no-fault
+ case 0x8a: // Primary no-fault LE
+ if (page_check_range(addr, size, PAGE_READ) == -1) {
+#ifdef DEBUG_ASI
+ dump_asi("read ", last_addr, asi, size, ret);
+#endif
+ return 0;
+ }
+ // Fall through
case 0x80: // Primary
- case 0x82: // Primary no-fault
case 0x88: // Primary LE
- case 0x8a: // Primary no-fault LE
{
switch(size) {
case 1:
@@ -1424,10 +1431,17 @@
}
}
break;
+ case 0x83: // Secondary no-fault
+ case 0x8b: // Secondary no-fault LE
+ if (page_check_range(addr, size, PAGE_READ) == -1) {
+#ifdef DEBUG_ASI
+ dump_asi("read ", last_addr, asi, size, ret);
+#endif
+ return 0;
+ }
+ // Fall through
case 0x81: // Secondary
- case 0x83: // Secondary no-fault
case 0x89: // Secondary LE
- case 0x8b: // Secondary no-fault LE
// XXX
break;
default:
@@ -1564,12 +1578,19 @@
helper_check_align(addr, size - 1);
switch (asi) {
+ case 0x82: // Primary no-fault
+ case 0x8a: // Primary no-fault LE
+ if (cpu_get_phys_page_debug(env, addr) == -1ULL) {
+#ifdef DEBUG_ASI
+ dump_asi("read ", last_addr, asi, size, ret);
+#endif
+ return 0;
+ }
+ // Fall through
case 0x10: // As if user primary
case 0x18: // As if user primary LE
case 0x80: // Primary
- case 0x82: // Primary no-fault
case 0x88: // Primary LE
- case 0x8a: // Primary no-fault LE
if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
if ((env->def->features & CPU_FEATURE_HYPV)
&& env->hpstate & HS_PRIV) {
@@ -1650,15 +1671,22 @@
// Only ldda allowed
raise_exception(TT_ILL_INSN);
return 0;
+ case 0x83: // Secondary no-fault
+ case 0x8b: // Secondary no-fault LE
+ if (cpu_get_phys_page_debug(env, addr) == -1ULL) {
+#ifdef DEBUG_ASI
+ dump_asi("read ", last_addr, asi, size, ret);
+#endif
+ return 0;
+ }
+ // Fall through
case 0x04: // Nucleus
case 0x0c: // Nucleus Little Endian (LE)
case 0x11: // As if user secondary
case 0x19: // As if user secondary LE
case 0x4a: // UPA config
case 0x81: // Secondary
- case 0x83: // Secondary no-fault
case 0x89: // Secondary LE
- case 0x8b: // Secondary no-fault LE
// XXX
break;
case 0x45: // LSU
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