lists.xenproject.org
> Subject: Re: [PATCH v8 2/9] xen: do not free reserved memory into heap
>
> On 07.07.2022 11:22, Penny Zheng wrote:
> > --- a/xen/arch/arm/mm.c
> > +++ b/xen/arch/arm/mm.c
> > @@ -1622,6 +1622,8 @@ void put_page(struct page_info *pa
On 07.07.2022 11:22, Penny Zheng wrote:
> --- a/xen/arch/arm/mm.c
> +++ b/xen/arch/arm/mm.c
> @@ -1622,6 +1622,8 @@ void put_page(struct page_info *page)
>
> if ( unlikely((nx & PGC_count_mask) == 0) )
> {
> +if ( unlikely(nx & PGC_static) )
> +free_domstatic_page(pa
Pages used as guest RAM for static domain, shall be reserved to this
domain only.
So in case reserved pages being used for other purpose, users
shall not free them back to heap, even when last ref gets dropped.
This commit introduces a new helper free_domstatic_page to free
static page in runtime,
