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+
+MIPS MT dvpe does not regard VPEConf0.MVP  
+
+Hi,
+
+According to MIPS32® Architecture for Programmers VolumeIV-f: The MIPS® MT Application-Speciﬁc Extension to the MIPS32® Architecture, for instruction: dvpe, evpe:
+
+If the VPE executing the instruction is not a Master VPE, with the MVP bit of the VPEConf0 register set, the EVP bit is unchanged by the instruction.
+
+The pseudo code is:
+
+data ←  MVPControl
+GPR[rt] ←  data
+if(VPEConf0.MVP = 1) then
+  MVPControl.EVP ←  sc
+endif
+
+However the helper functions of dvpe, evpe does not regard the VPEConf0.MVP bit, namely, it does not check if the VPE is a master VPE. Code is copied below as:
+
+target_ulong helper_dvpe(CPUMIPSState *env)
+{
+    CPUState *other_cs = first_cpu;
+    target_ulong prev = env->mvp->CP0_MVPControl;
+
+    CPU_FOREACH(other_cs) {
+        MIPSCPU *other_cpu = MIPS_CPU(other_cs);
+        /* Turn off all VPEs except the one executing the dvpe.  */
+        if (&other_cpu->env != env) {
+            other_cpu->env.mvp->CP0_MVPControl &= ~(1 << CP0MVPCo_EVP);
+            mips_vpe_sleep(other_cpu);
+        }
+    }
+    return prev;
+}
+
+Is this a bug?
+
+QEMU head commit: 0cef06d18762374c94eb4d511717a4735d668a24 is checked.
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