[Qemu-devel] [PATCH v2] linux-user: fix running programs with iwmmxt

[Qemu-devel] [PATCH v2] linux-user: fix running programs with iwmmxt

[Lars Munch]

CP0 and/or CP1 needs to be accessible when using linux-user for emulating a
pxa270 cpu with code using iwmmxt instructions. This patch inits the cpu to
have CP0 and/or CP1 accessible if in linux-user mode.

Signed-off-by: Lars Munch <lars@segv.dk>
---
 target-arm/helper.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 99e0394..d3731bb 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -168,6 +168,9 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         /* JTAG_ID is ((id << 28) | 0x09265013) */
         env->cp15.c0_cachetype = 0xd172172;
         env->cp15.c1_sys = 0x00000078;
+#if defined (CONFIG_USER_ONLY)
+       env->cp15.c15_cpar = 0x00000001;
+#endif
         break;
     case ARM_CPUID_PXA270_A0:
     case ARM_CPUID_PXA270_A1:
@@ -181,6 +184,9 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q';
         env->cp15.c0_cachetype = 0xd172172;
         env->cp15.c1_sys = 0x00000078;
+#if defined (CONFIG_USER_ONLY)
+       env->cp15.c15_cpar = 0x00000003;
+#endif
         break;
     default:
         cpu_abort(env, "Bad CPU ID: %x\n", id);
-- 
1.7.1