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[Qemu-devel] [PATCH v1] target/arm/arm-powerctl: mask the cpuid with aff
From: |
Yang Chuanlong |
Subject: |
[Qemu-devel] [PATCH v1] target/arm/arm-powerctl: mask the cpuid with affinity bits when get cpu |
Date: |
Tue, 30 Apr 2019 11:12:38 +0800 |
Currently, the cpuid passed from the device tree may still contain
non-affinity fields, which will cause arm_set_cpu_on failure.
Therefore, we mask the cpuid with affinity fields here to
improve qemu compatibility.
Signed-off-by: Yang Chuanlong <address@hidden>
---
target/arm/arm-powerctl.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/target/arm/arm-powerctl.c b/target/arm/arm-powerctl.c
index f77a950db6..ef9fec0b4d 100644
--- a/target/arm/arm-powerctl.c
+++ b/target/arm/arm-powerctl.c
@@ -31,7 +31,13 @@ CPUState *arm_get_cpu_by_id(uint64_t id)
{
CPUState *cpu;
- DPRINTF("cpu %" PRId64 "\n", id);
+#ifdef TARGET_AARCH64
+ id &= ARM64_AFFINITY_MASK;
+#else
+ id &= ARM32_AFFINITY_MASK;
+#endif
+
+ DPRINTF("cpu %" PRId64 " after mask affinity\n", id);
CPU_FOREACH(cpu) {
ARMCPU *armcpu = ARM_CPU(cpu);
--
2.21.0