Re: [Qemu-devel] [PATCH] linux-user: elfload: Still use TARGET_PAGE_SIZE for i386 guest

[Richard Henderson]

On 08/12/2015 12:59 AM, gchen gchen wrote:
>> Nack.  There's 99 problems with host page size> guest page size.  This
>> solves none of them, and in the hackiest way possible.
>>
> 
> Under alpha virtual machine, if set i386 guest page size 8KB, it will
> cause failure directly (any dynamically linked binaries can not work).

Yes, I know.  The same thing happens when running i386 guests on other
(non-virtual) hosts.  E.g. Sparc64's 8kB page, PowerPC64's 64kB page.

> Do you have any other ideas for solving this issue?

The only complete solution that I see is to use softmmu with linux-user, so
that we properly emulate the guest pages.  Yes, it will cause quite some
slow-down in emulation, but I believe it's the only reliable way.


r~