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[Qemu-arm] [PATCH 1/4] arm: HVC and SMC encodings don't exist for M prof
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From: |
Peter Maydell |
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Subject: |
[Qemu-arm] [PATCH 1/4] arm: HVC and SMC encodings don't exist for M profile |
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Date: |
Mon, 20 Feb 2017 18:41:09 +0000 |
M profile doesn't have the HVC or SMC encodings, so make them always
UNDEF rather than generating calls to helper functions that assume
A/R profile.
Signed-off-by: Peter Maydell <address@hidden>
---
target/arm/translate.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 9fded03..895b399 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -10365,6 +10365,9 @@ static int disas_thumb2_insn(CPUARMState *env,
DisasContext *s, uint16_t insn_hw
goto illegal_op;
if (insn & (1 << 26)) {
+ if (arm_dc_feature(s, ARM_FEATURE_M)) {
+ goto illegal_op;
+ }
if (!(insn & (1 << 20))) {
/* Hypervisor call (v7) */
int imm16 = extract32(insn, 16, 4) << 12
--
2.7.4