https://patchew.org/QEMU/20260715134447.56007-1-kirill%40korins.ky/

Index: target/mips/system/machine.c
--- target/mips/system/machine.c.orig
+++ target/mips/system/machine.c
@@ -372,6 +372,18 @@ static const VMStateDescription mips_vmstate_octeon_cr
     }
 };
 
+static const VMStateDescription mips_vmstate_octeon_cp0 = {
+    .name = "cpu/octeon_cp0",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .needed = mips_octeon_needed,
+    .fields = (const VMStateField[]) {
+        VMSTATE_UINTTL(env.CP0_CvmCtl, MIPSCPU),
+        VMSTATE_UINTTL(env.CP0_CvmMemCtl, MIPSCPU),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
 const VMStateDescription vmstate_mips_cpu = {
     .name = "cpu",
     .version_id = 21,
@@ -490,6 +502,7 @@ const VMStateDescription vmstate_mips_cpu = {
         &mips_vmstate_timer,
         &mips_vmstate_octeon_multiplier,
         &mips_vmstate_octeon_crypto,
+        &mips_vmstate_octeon_cp0,
         NULL
     }
 };
