Ben-Ami Yassour wrote:
Anthony Liguori [EMAIL PROTECTED] wrote on 04/29/2008 05:32:09 PM:
Subject
[PATCH] Handle vma regions with no backing page
This patch allows VMA's that contain no backing page to be used for
guest
memory. This is a drop-in replacement for Ben-Ami's first page in
his
On Tue, 2008-06-03 at 13:39 +0200, Andrea Arcangeli wrote:
On Tue, Jun 03, 2008 at 02:17:55PM +0300, Ben-Ami Yassour wrote:
Anthony Liguori [EMAIL PROTECTED] wrote on 04/29/2008 05:32:09 PM:
Subject
[PATCH] Handle vma regions with no backing page
This patch allows VMA's that contain
Avi Kivity wrote:
Looks like we need to reintroduce a refcount bit in the pte, and check
the page using the VMA.
I don't think mucking with the VMA is going to help. We're already
using the VMA to determine that the region is MMIO. What we need to be
able to do is figure out, given a
On Wed, Jun 04, 2008 at 06:09:24PM +0300, Ben-Ami Yassour1 wrote:
We noticed that pfn_valid does not always works as expected by
this patch to indicate that a pfn has a backing page. We have
seen a case where CONFIG_NUMA was not set and then where
pfn_valid returned 1 for an mmio
On Wed, Jun 04, 2008 at 07:17:55PM +0300, Muli Ben-Yehuda wrote:
On Wed, Jun 04, 2008 at 06:09:24PM +0300, Ben-Ami Yassour1 wrote:
We noticed that pfn_valid does not always works as expected by
this patch to indicate that a pfn has a backing page. We have
seen a case where
On Wed, Jun 04, 2008 at 02:41:20PM -0500, Anthony Liguori wrote:
The pfn does have a backing page. When using CONFIG_FLATMEM, pfn_valid()
is simply:
#ifdef CONFIG_FLATMEM
#define pfn_valid(pfn) ((pfn) end_pfn)
#endif
And this is true, pfn_valid() just indicates whether there is
On Wed, 2008-06-04 at 21:51 +0200, Andrea Arcangeli wrote:
Dave mentioned that SetPageReserved() doesn't necessarily get called
for
zones with bad alignment.
What does 'bad alignment' mean? Buddy was used to require each zone to
start at 1MAX_ORDER naturally aligned physical address (any
Anthony Liguori [EMAIL PROTECTED] wrote on 04/29/2008 05:32:09 PM:
Subject
[PATCH] Handle vma regions with no backing page
This patch allows VMA's that contain no backing page to be used for guest
memory. This is a drop-in replacement for Ben-Ami's first page in his direct
mmio series. Here
On Tue, Jun 03, 2008 at 02:17:55PM +0300, Ben-Ami Yassour wrote:
Anthony Liguori [EMAIL PROTECTED] wrote on 04/29/2008 05:32:09 PM:
Subject
[PATCH] Handle vma regions with no backing page
This patch allows VMA's that contain no backing page to be used for guest
memory. This is a drop
