Re: [RFC/RFT PATCH 0/2] x86: sgx_vepc: implement ioctl to EREMOVE all pages

Paolo Bonzini
2021-09-14T10:19:40Z

On 14/09/21 09:10, Yang Zhong wrote:
> On Mon, Sep 13, 2021 at 09:11:51AM -0400, Paolo Bonzini wrote:
>> Based on discussions from the previous week(end), this series implements
>> a ioctl that performs EREMOVE on all pages mapped by a /dev/sgx_vepc
>> file descriptor. Other possibilities, such as closing and reopening
>> the device, are racy.
>>
>> The patches are untested, but I am posting them because they are simple
>> and so that Yang Zhong can try using them in QEMU.
>>
>
> Paolo, i re-implemented one reset patch in the Qemu side to call this ioctl(),
> and did some tests on Windows and Linux guest, the Windows/Linux guest reboot
> work well.
>
> So, it is time for me to send this reset patch to Qemu community? or wait for
> this kernel patchset merged? thanks!

Let's wait for this patch to be accepted first. I'll wait a little more
for Jarkko and Dave to comment on this, and include your "Tested-by".

I will also add cond_resched() on the final submission.

Paolo