From 298d43c96b0f7dc7ea6550ea73b128b3d4ed67f9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Wed, 21 Apr 2021 20:39:15 +0200 Subject: [PATCH] target/mips: Add missing CP0 check to nanoMIPS RDPGPR / WRPGPR opcodes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Per the nanoMIPS32 Instruction Set Technical Reference Manual, Revision 01.01, Chapter 3. "Instruction Definitions": The Read/Write Previous GPR opcodes "require CP0 privilege". Add the missing CP0 checks. Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Message-Id: <20210421185007.2231855-1-f4bug@amsat.org> --- target/mips/translate.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/target/mips/translate.c b/target/mips/translate.c index 5dad75cdf3..8a0a219742 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -18969,9 +18969,11 @@ static void gen_pool32axf_nanomips_insn(CPUMIPSState *env, DisasContext *ctx) } break; case NM_RDPGPR: + check_cp0_enabled(ctx); gen_load_srsgpr(rs, rt); break; case NM_WRPGPR: + check_cp0_enabled(ctx); gen_store_srsgpr(rs, rt); break; case NM_WAIT: