Re: physmem: Is 0644 OK for new created file?

[Paolo Bonzini]

On 23/11/20 12:41, Peng Liang wrote:
> Hi,
>
> Recently, I tried to use ivshmem-plain devices to share some information
> between guests.  I found that if the file of the shmem doesn't exist,
> then QEMU will create one and the mode of it is 0644.  Maybe it is risky
> because everyone can read the content of the file?  Do we need to change
> it to 0640 or 0600?

You can control that with the directory permissions or the umask as 
well, so it shouldn't be a problem.

Paolo