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

Index: target/mips/tcg/system_helper.h.inc
--- target/mips/tcg/system_helper.h.inc.orig
+++ target/mips/tcg/system_helper.h.inc
@@ -31,6 +31,7 @@ DEF_HELPER_1(mftc0_tcschedule, tl, env)
 DEF_HELPER_1(mfc0_tcschefback, tl, env)
 DEF_HELPER_1(mftc0_tcschefback, tl, env)
 DEF_HELPER_1(mfc0_count, tl, env)
+DEF_HELPER_1(mfc0_cvmcount, tl, env)
 DEF_HELPER_1(mftc0_entryhi, tl, env)
 DEF_HELPER_1(mftc0_status, tl, env)
 DEF_HELPER_1(mftc0_cause, tl, env)
