[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-riscv] [Qemu-devel] [PATCH] target/riscv: Do not allow sfence.
From: |
Richard Henderson |
Subject: |
Re: [Qemu-riscv] [Qemu-devel] [PATCH] target/riscv: Do not allow sfence.vma from user mode |
Date: |
Tue, 2 Apr 2019 07:25:25 +0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 |
On 4/2/19 2:12 AM, Jonathan Behrens wrote:
> The 'sfence.vma' instruction is privileged, and should only ever be allowed
> when executing in supervisor mode or higher.
>
> Jonathan
>
> Signed-off-by: Jonathan Behrens <address@hidden>
> ---
> target/riscv/op_helper.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
Reviewed-by: Richard Henderson <address@hidden>
r~