Re: [PATCH] hw/display/qxl: Set pci rom address aligned with page size

[maobibo]

在 2021年05月18日 15:37, Gerd Hoffmann 写道:
>   Hi,
> 
>>> Is the host page size fixed on mips?
>>
>> No, it is not fixed on mips, and it can be selected by linux kernel config.
> 
> Hmm.  So the rom size can differ depending on host kernel config.
> Which is bad.  It'll break live migration between hosts with
> different page sizes (or wouldn't that work anyway for other reasons?).
yes, there will be live migration problem between hosts with different page 
sizes, if page size of guest OS is different with host system, there will be 
live migration issue also. 
> 
> What page sizes are supported on mips?  4k and 16k I assume?
> So maybe just use 16k unconditionally on mips?
Different mips vendors have different kernel config, there is no general kernel 
config for all vendors now.

However it is fixed for one vendor. On my Loongson mips box, 16K page size is 
used. However other vendors have their own binary software code and kernel 
config.

regards
bibo, mao
> 
> take care,
>   Gerd
>