Re: [PATCH v1 11/13] xen/arm: store shm-info for deferred foreign memory map

2022-04-09 Thread Julien Grall
Hi Stefano, On 08/04/2022 23:46, Stefano Stabellini wrote: So I don't think that when the owner dies, we need to actively go and unmap the pages at the borrowers. Also because it would likely cause them to crash: from their point of view the memory was there, and suddenly it is not there

RE: [PATCH v1 11/13] xen/arm: store shm-info for deferred foreign memory map

2022-04-08 Thread Stefano Stabellini
On Tue, 29 Mar 2022, Penny Zheng wrote: > > On Fri, 11 Mar 2022, Penny Zheng wrote: > > > From: Penny Zheng > > > > > > In a few scenarios where owner domain, is defined after borrower > > > domain in device tree configuration, then statically shared pages > > > haven't been properly allocated if

RE: [PATCH v1 11/13] xen/arm: store shm-info for deferred foreign memory map

2022-03-29 Thread Penny Zheng
Hi Stefano > -Original Message- > From: Stefano Stabellini > Sent: Friday, March 18, 2022 10:01 AM > To: Penny Zheng > Cc: xen-devel@lists.xenproject.org; nd ; Stefano Stabellini > ; Julien Grall ; Bertrand Marquis > ; Volodymyr Babchuk > > Subject: Re: [PAT

Re: [PATCH v1 11/13] xen/arm: store shm-info for deferred foreign memory map

2022-03-17 Thread Stefano Stabellini
On Fri, 11 Mar 2022, Penny Zheng wrote: > From: Penny Zheng > > In a few scenarios where owner domain, is defined after borrower domain in > device tree configuration, then statically shared pages haven't been properly > allocated if borrower domain tries to do foreign memory map during > domain

[PATCH v1 11/13] xen/arm: store shm-info for deferred foreign memory map

2022-03-10 Thread Penny Zheng
From: Penny Zheng In a few scenarios where owner domain, is defined after borrower domain in device tree configuration, then statically shared pages haven't been properly allocated if borrower domain tries to do foreign memory map during domain construction. In order to cover such scenario, we