From: Weiwei Li <liweiwei@iscas.ac.cn>
To: qemu-riscv@nongnu.org, qemu-devel@nongnu.org
Cc: palmer@dabbelt.com, alistair.francis@wdc.com,
bin.meng@windriver.com, dbarboza@ventanamicro.com,
zhiwei_liu@linux.alibaba.com, wangjunqiang@iscas.ac.cn,
lazyparser@gmail.com, Weiwei Li <liweiwei@iscas.ac.cn>
Subject: [PATCH 0/2] target/riscv: Fix mstatus.MPP related support
Date: Thu, 30 Mar 2023 21:58:16 +0800 [thread overview]
Message-ID: <20230330135818.68417-1-liweiwei@iscas.ac.cn> (raw)
This patchset tries to fix some problems in current implementation for mstatus.MPP.
- set to the least-privileged supported mode (U if U-mode is implemented, else M) after executing mret
- legalize mpp when write to mstatus
The port is available here:
https://github.com/plctlab/plct-qemu/tree/plct-mpp-fix
Weiwei Li (2):
target/riscv: Fix the mstatus.MPP value after executing MRET
target/riscv: Legalize MPP value in write_mstatus
target/riscv/cpu_helper.c | 5 +----
target/riscv/csr.c | 14 ++++++++++++++
target/riscv/op_helper.c | 3 ++-
3 files changed, 17 insertions(+), 5 deletions(-)
--
2.25.1
next reply other threads:[~2023-03-30 13:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-30 13:58 Weiwei Li [this message]
2023-03-30 13:58 ` [PATCH 1/2] target/riscv: Fix the mstatus.MPP value after executing MRET Weiwei Li
2023-04-06 0:43 ` Alistair Francis
2023-04-06 0:56 ` liweiwei
2023-04-06 1:46 ` Alistair Francis
2023-04-06 2:14 ` liweiwei
2023-04-06 2:24 ` Alistair Francis
2023-04-06 2:39 ` liweiwei
2023-04-06 3:01 ` liweiwei
2023-04-06 3:55 ` Alistair Francis
2023-03-30 13:58 ` [PATCH 2/2] target/riscv: Legalize MPP value in write_mstatus Weiwei Li
2023-04-06 1:26 ` Alistair Francis
2023-04-06 1:35 ` liweiwei
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