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[Qemu-devel] [PULL 17/17] Allow ARMv8 SCR.SMD updates
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 17/17] Allow ARMv8 SCR.SMD updates |
Date: |
Mon, 27 Apr 2015 16:20:45 +0100 |
From: Greg Bellows <address@hidden>
Updated scr_write to always allow updates to the SCR.SMD bit on ARMv8
regardless of whether virtualization (EL2) is enabled or not.
Signed-off-by: Greg Bellows <address@hidden>
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
---
target-arm/helper.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 0ac6ff1..f8f8d76 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -816,8 +816,10 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo
*ri, uint64_t value)
* supported if EL2 exists. The bit is UNK/SBZP when
* EL2 is unavailable. In QEMU ARMv7, we force it to always zero
* when EL2 is unavailable.
+ * On ARMv8, this bit is always available.
*/
- if (arm_feature(env, ARM_FEATURE_V7)) {
+ if (arm_feature(env, ARM_FEATURE_V7) &&
+ !arm_feature(env, ARM_FEATURE_V8)) {
valid_mask &= ~SCR_SMD;
}
}
--
1.9.1
- [Qemu-devel] [PULL 00/17] target-arm queue, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 17/17] Allow ARMv8 SCR.SMD updates,
Peter Maydell <=
- [Qemu-devel] [PULL 14/17] target-arm: Check watchpoints against CPU security state, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 16/17] target-arm: Adjust id_aa64pfr0 when has_el3 CPU property disabled, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 01/17] memory: Define API for MemoryRegionOps to take attrs and return status, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 15/17] target-arm: rename c1_coproc to cpacr_el1, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 12/17] target-arm: Add user-mode transaction attribute, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 13/17] target-arm: Use attribute info to handle user-only watchpoints, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 11/17] target-arm: Use correct memory attributes for page table walks, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 10/17] target-arm: Honour NS bits in page tables, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 05/17] exec.c: Convert subpage memory ops to _with_attrs, Peter Maydell, 2015/04/27
- [Qemu-devel] [PULL 03/17] Make CPU iotlb a structure rather than a plain hwaddr, Peter Maydell, 2015/04/27