From d6f20dacea5147a9136ec3ecc7124440c16ba862 Mon Sep 17 00:00:00 2001 From: Alistair Francis Date: Thu, 1 Apr 2021 11:17:48 -0400 Subject: [PATCH] target/riscv: Fix 32-bit HS mode access permissions Signed-off-by: Alistair Francis Reviewed-by: Richard Henderson Reviewed-by: Bin Meng Message-id: cb1ef2061547dc9028ce3cf4f6622588f9c09149.1617290165.git.alistair.francis@wdc.com --- target/riscv/csr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 1938bdca7d2..6a39c4aa967 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -181,7 +181,11 @@ static RISCVException hmode(CPURISCVState *env, int csrno) static RISCVException hmode32(CPURISCVState *env, int csrno) { if (!riscv_cpu_is_32bit(env)) { - return RISCV_EXCP_NONE; + if (riscv_cpu_virt_enabled(env)) { + return RISCV_EXCP_ILLEGAL_INST; + } else { + return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; + } } return hmode(env, csrno); -- 2.39.5