From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: david.vrabel@citrix.com, JGross@suse.com,
xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org,
roger.pau@citrix.com
Subject: Re: [Xen-devel] [PATCH 6/8] xen/pvh: Initialize grant table for PVH guests
Date: Fri, 14 Oct 2016 15:51:34 -0400 [thread overview]
Message-ID: <20161014195134.GA22782@char.us.oracle.com> (raw)
In-Reply-To: <d04cd053-c452-e8ef-c111-64b4bdb5aa3b@oracle.com>
On Fri, Oct 14, 2016 at 03:43:19PM -0400, Boris Ostrovsky wrote:
> On 10/14/2016 03:19 PM, Konrad Rzeszutek Wilk wrote:
> > On Fri, Oct 14, 2016 at 02:05:16PM -0400, Boris Ostrovsky wrote:
> >
> > Perhaps add in here:
> >
> > PVH is like PV in that there are no PCI devices - which HVM
> > code would piggyback on to find the Xen PCI platform device and
> > use its MMIO space to stash the grants in.
> >
> > For PVH we balloon out memory and stash the grants in there.
> >
> > (Which begs the next question - where and when do we balloon out the
> > normal memory back in?)
>
> Are you saying that we should get back memory that we gave to grant tables?
Yes.
In pure HVM that area is MMIO - which hvmloader has balloonned out.
The hvmloader then balloons that number of pages back at the end of
guest memory (after 4GB).
next prev parent reply other threads:[~2016-10-14 19:51 UTC|newest]
Thread overview: 107+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-14 18:05 [PATCH 0/8] PVH v2 support Boris Ostrovsky
2016-10-14 18:05 ` [PATCH 1/8] xen/x86: Remove PVH support Boris Ostrovsky
2016-10-14 18:05 ` Boris Ostrovsky
2016-10-14 18:31 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-14 18:31 ` Konrad Rzeszutek Wilk
2016-10-18 13:46 ` Juergen Gross
2016-10-18 13:46 ` Juergen Gross
2016-10-18 14:45 ` Boris Ostrovsky
2016-10-18 14:45 ` Boris Ostrovsky
2016-10-18 15:33 ` Juergen Gross
2016-10-18 15:42 ` Boris Ostrovsky
2016-10-18 15:42 ` Boris Ostrovsky
2016-10-18 15:33 ` Juergen Gross
2016-10-14 18:05 ` [PATCH 2/8] x86/head: Refactor 32-bit pgtable setup Boris Ostrovsky
2016-10-14 18:05 ` Boris Ostrovsky
2016-10-14 18:31 ` hpa
2016-10-14 18:44 ` Boris Ostrovsky
2016-10-14 18:44 ` Boris Ostrovsky
2016-10-14 19:04 ` hpa
2016-10-14 19:04 ` hpa
2016-10-14 19:18 ` Boris Ostrovsky
2016-10-14 19:18 ` Boris Ostrovsky
2016-10-14 18:31 ` hpa
2016-10-31 12:33 ` Boris Ostrovsky
2016-10-31 12:33 ` Boris Ostrovsky
2016-12-01 15:33 ` Boris Ostrovsky
2016-12-01 15:33 ` Boris Ostrovsky
2016-12-02 9:45 ` Ingo Molnar
2016-12-02 14:04 ` Boris Ostrovsky
2016-12-02 14:04 ` Boris Ostrovsky
2016-12-02 16:08 ` Ingo Molnar
2016-12-02 16:08 ` Ingo Molnar
2016-12-02 17:52 ` hpa
2016-12-02 19:49 ` Boris Ostrovsky
2016-12-02 19:49 ` Boris Ostrovsky
2016-12-03 5:49 ` Ingo Molnar
2016-12-03 5:49 ` Ingo Molnar
2016-12-03 6:36 ` hpa
2016-12-03 6:36 ` hpa
2016-12-02 17:52 ` hpa
2016-12-02 9:45 ` Ingo Molnar
2016-10-14 18:05 ` [PATCH 3/8] xen/pvh: Import PVH-related Xen public interfaces Boris Ostrovsky
2016-10-14 18:34 ` Konrad Rzeszutek Wilk
2016-10-14 18:34 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-21 10:58 ` Juergen Gross
2016-10-21 10:58 ` Juergen Gross
2016-10-14 18:05 ` Boris Ostrovsky
2016-10-14 18:05 ` [PATCH 4/8] xen/pvh: Bootstrap PVH guest Boris Ostrovsky
2016-10-14 18:38 ` Andrew Cooper
2016-10-14 18:38 ` [Xen-devel] " Andrew Cooper
2016-10-14 18:55 ` Boris Ostrovsky
2016-10-14 18:55 ` [Xen-devel] " Boris Ostrovsky
2016-10-14 19:12 ` Andrew Cooper
2016-10-14 19:12 ` [Xen-devel] " Andrew Cooper
2016-10-14 19:14 ` Konrad Rzeszutek Wilk
2016-10-14 19:14 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-14 19:34 ` Boris Ostrovsky
2016-10-14 19:34 ` Boris Ostrovsky
2016-10-14 18:05 ` Boris Ostrovsky
2016-10-14 18:05 ` [PATCH 5/8] xen/pvh: Prevent PVH guests from using PIC, RTC and IOAPIC Boris Ostrovsky
2016-10-14 18:05 ` Boris Ostrovsky
2016-10-14 19:16 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-14 19:16 ` Konrad Rzeszutek Wilk
2016-10-14 19:37 ` [Xen-devel] " Boris Ostrovsky
2016-10-14 19:37 ` Boris Ostrovsky
2016-10-26 10:42 ` Roger Pau Monné
2016-10-26 14:50 ` Boris Ostrovsky
2016-10-26 14:50 ` Boris Ostrovsky
2016-10-26 15:18 ` Roger Pau Monné
2016-10-26 16:06 ` Boris Ostrovsky
2016-10-26 16:06 ` Boris Ostrovsky
2016-10-26 15:18 ` Roger Pau Monné
2016-10-26 10:42 ` Roger Pau Monné
2016-10-14 18:05 ` [PATCH 6/8] xen/pvh: Initialize grant table for PVH guests Boris Ostrovsky
2016-10-14 18:05 ` Boris Ostrovsky
2016-10-14 19:19 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-14 19:43 ` Boris Ostrovsky
2016-10-14 19:51 ` Konrad Rzeszutek Wilk [this message]
2016-10-14 20:02 ` Boris Ostrovsky
2016-10-14 20:02 ` [Xen-devel] " Boris Ostrovsky
2016-10-18 16:08 ` Juergen Gross
2016-10-18 16:40 ` Boris Ostrovsky
2016-10-18 16:40 ` [Xen-devel] " Boris Ostrovsky
2016-10-19 5:47 ` Juergen Gross
2016-10-19 5:47 ` [Xen-devel] " Juergen Gross
2016-10-18 16:08 ` Juergen Gross
2016-10-14 19:51 ` Konrad Rzeszutek Wilk
2016-10-14 19:43 ` Boris Ostrovsky
2016-10-14 19:19 ` Konrad Rzeszutek Wilk
2016-10-14 18:05 ` [PATCH 7/8] xen/pvh: PVH guests always have PV devices Boris Ostrovsky
2016-10-14 18:05 ` Boris Ostrovsky
2016-10-14 19:17 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-14 19:17 ` Konrad Rzeszutek Wilk
2016-10-18 15:54 ` Juergen Gross
2016-10-18 15:54 ` Juergen Gross
2016-10-14 18:05 ` [PATCH 8/8] xen/pvh: Enable CPU hotplug Boris Ostrovsky
2016-10-14 18:41 ` Andrew Cooper
2016-10-14 18:41 ` [Xen-devel] " Andrew Cooper
2016-10-14 19:01 ` Boris Ostrovsky
2016-10-14 19:01 ` Boris Ostrovsky
2016-10-27 14:25 ` [Xen-devel] " Boris Ostrovsky
2016-10-27 14:25 ` Boris Ostrovsky
2016-10-27 15:00 ` Andrew Cooper
2016-10-27 15:00 ` [Xen-devel] " Andrew Cooper
2016-10-27 16:23 ` Boris Ostrovsky
2016-10-27 16:23 ` [Xen-devel] " Boris Ostrovsky
2016-10-14 18:05 ` Boris Ostrovsky
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