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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~



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