From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Q:pt_base in COMPAT mode offset by two pages. Was:Re: [Xen-devel] [PATCH 02/11] xen/x86: Use memblock_reserve for sensitive areas.
Date: Wed, 22 Aug 2012 15:41:12 +0100 [thread overview]
Message-ID: <alpine.DEB.2.02.1208221540570.15568@kaball.uk.xensource.com> (raw)
In-Reply-To: <503504FE0200007800096F08@nat28.tlf.novell.com>
On Wed, 22 Aug 2012, Jan Beulich wrote:
> >> The toolstack works fine - so launching 32-bit guests either
> >> under a 32-bit hypervisor or 64-bit works fine:
> >> ] domainbuilder: detail: xc_dom_alloc_segment: page tables : 0xcf805000 ->
> > 0xcf885000 (pfn 0xf805 + 0x80 pages)
> >> [ 0.000000] PT: cf805000 (f805000)
> >>
> >
> > And this patch on top of the others fixes this..
>
> I didn't look at this in too close detail, but I started to get
> afraid that you might be making the code dependent on
> many hypervisor implementation details. And should the
> above turn out to be a bug in the hypervisor, I hope your
> kernel side changes won't make it impossible to fix that bug.
I agree
next prev parent reply other threads:[~2012-08-22 14:42 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-16 16:03 [PATCH] Boot PV guests with more than 128GB (v3) for v3.7 Konrad Rzeszutek Wilk
2012-08-16 16:03 ` [PATCH 01/11] xen/p2m: Fix the comment describing the P2M tree Konrad Rzeszutek Wilk
2012-08-17 17:29 ` [Xen-devel] " Stefano Stabellini
2012-08-16 16:03 ` [PATCH 02/11] xen/x86: Use memblock_reserve for sensitive areas Konrad Rzeszutek Wilk
2012-08-17 17:35 ` [Xen-devel] " Stefano Stabellini
2012-08-20 14:13 ` Konrad Rzeszutek Wilk
2012-08-21 17:27 ` Q:pt_base in COMPAT mode offset by two pages. Was:Re: " Konrad Rzeszutek Wilk
2012-08-21 19:03 ` Konrad Rzeszutek Wilk
2012-08-22 10:48 ` Stefano Stabellini
2012-08-22 14:00 ` Konrad Rzeszutek Wilk
2012-08-22 14:12 ` Jan Beulich
2012-08-22 14:41 ` Stefano Stabellini [this message]
2012-08-22 14:57 ` Konrad Rzeszutek Wilk
2012-08-22 15:59 ` Jan Beulich
2012-08-22 16:21 ` Konrad Rzeszutek Wilk
2012-08-22 18:55 ` [Xen-devel] Q:pt_base in COMPAT mode offset by two pages. Was:Re: " Konrad Rzeszutek Wilk
2012-08-23 6:23 ` Jan Beulich
2012-08-16 16:03 ` [PATCH 03/11] xen/mmu: The xen_setup_kernel_pagetable doesn't need to return anything Konrad Rzeszutek Wilk
2012-08-16 16:03 ` [PATCH 04/11] xen/mmu: Provide comments describing the _ka and _va aliasing issue Konrad Rzeszutek Wilk
2012-08-16 16:03 ` [PATCH 05/11] xen/mmu: use copy_page instead of memcpy Konrad Rzeszutek Wilk
2012-08-16 16:03 ` [PATCH 06/11] xen/mmu: For 64-bit do not call xen_map_identity_early Konrad Rzeszutek Wilk
2012-08-17 17:41 ` [Xen-devel] " Stefano Stabellini
2012-08-17 17:45 ` Konrad Rzeszutek Wilk
2012-08-20 11:45 ` Stefano Stabellini
2012-08-20 11:53 ` Ian Campbell
2012-08-20 11:58 ` Stefano Stabellini
2012-08-20 12:06 ` Konrad Rzeszutek Wilk
2012-08-20 12:19 ` Stefano Stabellini
2012-08-23 15:40 ` Konrad Rzeszutek Wilk
2012-08-23 15:57 ` Stefano Stabellini
2012-08-16 16:03 ` [PATCH 07/11] xen/mmu: Recycle the Xen provided L4, L3, and L2 pages Konrad Rzeszutek Wilk
2012-08-17 18:07 ` [Xen-devel] " Stefano Stabellini
2012-08-17 18:05 ` Konrad Rzeszutek Wilk
2012-08-16 16:03 ` [PATCH 08/11] xen/p2m: Add logic to revector a P2M tree to use __va leafs Konrad Rzeszutek Wilk
2012-08-16 16:03 ` [PATCH 09/11] xen/mmu: Copy and revector the P2M tree Konrad Rzeszutek Wilk
2012-08-16 16:03 ` [PATCH 10/11] xen/mmu: Remove from __ka space PMD entries for pagetables Konrad Rzeszutek Wilk
2012-08-16 16:03 ` [PATCH 11/11] xen/mmu: Release just the MFN list, not MFN list and part of pagetables Konrad Rzeszutek Wilk
2012-08-21 14:18 ` [Xen-devel] " Stefano Stabellini
2012-08-21 14:57 ` Konrad Rzeszutek Wilk
2012-08-21 15:27 ` Stefano Stabellini
2012-09-17 18:06 ` William Dauchy
2012-09-17 18:18 ` Konrad Rzeszutek Wilk
2012-08-17 17:39 ` [PATCH] Boot PV guests with more than 128GB (v3) for v3.7 Konrad Rzeszutek Wilk
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.DEB.2.02.1208221540570.15568@kaball.uk.xensource.com \
--to=stefano.stabellini@eu.citrix.com \
--cc=JBeulich@suse.com \
--cc=konrad.wilk@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).