From: Bin Meng <bmeng@tinylab.org>
There are 2 paths in helper_sret() and the same mstatus update codes
are replicated. Extract the common parts to simplify it a little bit.
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221207090037.281452-1-bmeng@tinylab.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
target/riscv/op_helper.c | 20 ++++++--------------
1 file changed, 6 insertions(+), 14 deletions(-)
diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c
index d7af7f056b..a047d38152 100644
--- a/target/riscv/op_helper.c
+++ b/target/riscv/op_helper.c
@@ -149,21 +149,21 @@ target_ulong helper_sret(CPURISCVState *env)
}
mstatus = env->mstatus;
+ prev_priv = get_field(mstatus, MSTATUS_SPP);
+ mstatus = set_field(mstatus, MSTATUS_SIE,
+ get_field(mstatus, MSTATUS_SPIE));
+ mstatus = set_field(mstatus, MSTATUS_SPIE, 1);
+ mstatus = set_field(mstatus, MSTATUS_SPP, PRV_U);
+ env->mstatus = mstatus;
if (riscv_has_ext(env, RVH) && !riscv_cpu_virt_enabled(env)) {
/* We support Hypervisor extensions and virtulisation is disabled */
target_ulong hstatus = env->hstatus;
- prev_priv = get_field(mstatus, MSTATUS_SPP);
prev_virt = get_field(hstatus, HSTATUS_SPV);
hstatus = set_field(hstatus, HSTATUS_SPV, 0);
- mstatus = set_field(mstatus, MSTATUS_SPP, 0);
- mstatus = set_field(mstatus, SSTATUS_SIE,
- get_field(mstatus, SSTATUS_SPIE));
- mstatus = set_field(mstatus, SSTATUS_SPIE, 1);
- env->mstatus = mstatus;
env->hstatus = hstatus;
if (prev_virt) {
@@ -171,14 +171,6 @@ target_ulong helper_sret(CPURISCVState *env)
}
riscv_cpu_set_virt_enabled(env, prev_virt);
- } else {
- prev_priv = get_field(mstatus, MSTATUS_SPP);
-
- mstatus = set_field(mstatus, MSTATUS_SIE,
- get_field(mstatus, MSTATUS_SPIE));
- mstatus = set_field(mstatus, MSTATUS_SPIE, 1);
- mstatus = set_field(mstatus, MSTATUS_SPP, PRV_U);
- env->mstatus = mstatus;
}
riscv_cpu_set_mode(env, prev_priv);
--
2.39.0