On Mon, 09 Dec 2019 10:11:24 PST (-0800), Alistair Francis wrote:
Signed-off-by: Alistair Francis <alistair.fran...@wdc.com>
---
 target/riscv/csr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index a4b598d49a..fc38c45a7e 100644
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -449,6 +449,9 @@ static int read_mideleg(CPURISCVState *env, int csrno, 
target_ulong *val)
 static int write_mideleg(CPURISCVState *env, int csrno, target_ulong val)
 {
     env->mideleg = (env->mideleg & ~delegable_ints) | (val & delegable_ints);
+    if (riscv_has_ext(env, RVH)) {
+        env->mideleg |= VS_MODE_INTERRUPTS;
+    }
     return 0;
 }

Do you have any idea why?  The spec is explicit that this is the case, but I'm
surprised.

Reviewed-by: Palmer Dabbelt <palmerdabb...@google.com>

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