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authorMaciej W. Rozycki <macro@codesourcery.com>2014-11-03 18:51:38 +0000
committerLeon Alrae <leon.alrae@imgtec.com>2014-12-16 12:45:19 +0000
commitc7d4d98ae7057467f48c02a11ad9120021976089 (patch)
tree9a85dc1a1da5395240ebfb34ec9a3a6b9c4e4f1e
parent800675f11742b6080e40d17b8d5f35d3a5fc5724 (diff)
downloadfocaccia-qemu-c7d4d98ae7057467f48c02a11ad9120021976089.tar.gz
focaccia-qemu-c7d4d98ae7057467f48c02a11ad9120021976089.zip
target-mips: Make CP1.FIR read-only here too
CP1.FIR is read-only in hardware so gdbstub must respect it.  We already
respect it for CTC1 instructions, so do it here too.

Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
-rw-r--r--target-mips/gdbstub.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/target-mips/gdbstub.c b/target-mips/gdbstub.c
index 7e3a604afa..e86df0e57c 100644
--- a/target-mips/gdbstub.c
+++ b/target-mips/gdbstub.c
@@ -105,7 +105,7 @@ int mips_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
             RESTORE_ROUNDING_MODE;
             break;
         case 71:
-            env->active_fpu.fcr0 = tmp;
+            /* FIR is read-only.  Ignore writes.  */
             break;
         }
         return sizeof(target_ulong);