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[Qemu-devel] [PULL 13/15] hw/intc/armv7m_nvic: Don't enable ARMV7M_EXCP_
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 13/15] hw/intc/armv7m_nvic: Don't enable ARMV7M_EXCP_DEBUG from reset |
Date: |
Tue, 7 May 2019 13:00:09 +0100 |
The M-profile architecture specifies that the DebugMonitor exception
should be initially disabled, not enabled. It should be controlled
by the DEMCR register's MON_EN bit, but we don't implement that
register yet (like most of the debug architecture for M-profile).
Note that BKPT instructions will still work, because they
will be escalated to HardFault.
Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
Message-id: address@hidden
---
hw/intc/armv7m_nvic.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index 15cba63c964..3a346a682a3 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -2491,10 +2491,12 @@ static void armv7m_nvic_reset(DeviceState *dev)
* the System Handler Control register
*/
s->vectors[ARMV7M_EXCP_SVC].enabled = 1;
- s->vectors[ARMV7M_EXCP_DEBUG].enabled = 1;
s->vectors[ARMV7M_EXCP_PENDSV].enabled = 1;
s->vectors[ARMV7M_EXCP_SYSTICK].enabled = 1;
+ /* DebugMonitor is enabled via DEMCR.MON_EN */
+ s->vectors[ARMV7M_EXCP_DEBUG].enabled = 0;
+
resetprio = arm_feature(&s->cpu->env, ARM_FEATURE_V8) ? -4 : -3;
s->vectors[ARMV7M_EXCP_RESET].prio = resetprio;
s->vectors[ARMV7M_EXCP_NMI].prio = -2;
--
2.20.1
- [Qemu-devel] [PULL 01/15] pc: Rearrange pc_system_firmware_init()'s legacy -drive loop, (continued)
- [Qemu-devel] [PULL 01/15] pc: Rearrange pc_system_firmware_init()'s legacy -drive loop, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 05/15] arm: Allow system registers for KVM guests to be changed by QEMU code, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 09/15] util/cacheinfo: Use uint64_t on LLP64 model to satisfy Windows ARM64, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 04/15] hw/arm/raspi: Diagnose requests for too much RAM, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 07/15] QEMU_PACKED: Remove gcc_struct attribute in Windows non x86 targets, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 10/15] osdep: Fix mingw compilation regarding stdio formats, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 08/15] qga: Fix mingw compilation warnings on enum conversion, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 06/15] arm: aspeed: Set SDRAM size, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 11/15] hw/arm/armv7m_nvic: Check subpriority in nvic_recompute_state_secure(), Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 03/15] hw/arm/virt: Support firmware configuration with -blockdev, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 13/15] hw/intc/armv7m_nvic: Don't enable ARMV7M_EXCP_DEBUG from reset,
Peter Maydell <=
- [Qemu-devel] [PULL 14/15] target/arm: Implement XPSR GE bits, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 15/15] target/arm: Stop using variable length array in dc_zva, Peter Maydell, 2019/05/07
- [Qemu-devel] [PULL 12/15] hw/intc/armv7m_nvic: NS BFAR and BFSR are RAZ/WI if BFHFNMINS == 0, Peter Maydell, 2019/05/07
- Re: [Qemu-devel] [PULL 00/15] target-arm queue, Peter Maydell, 2019/05/08