From: Roger Pau Monne <roger.pau@citrix.com>
To: <xen-devel@lists.xenproject.org>
Cc: Roger Pau Monne <roger.pau@citrix.com>,
Jan Beulich <jbeulich@suse.com>,
Andrew Cooper <andrew.cooper3@citrix.com>, Wei Liu <wl@xen.org>,
Jun Nakajima <jun.nakajima@intel.com>,
Kevin Tian <kevin.tian@intel.com>,
George Dunlap <george.dunlap@citrix.com>
Subject: [PATCH 0/3] x86/ept: force WB to foreign and grant mappings
Date: Fri, 28 May 2021 19:39:32 +0200 [thread overview]
Message-ID: <20210528173935.29919-1-roger.pau@citrix.com> (raw)
Hello,
The aim of this series is to force the cache attribute of foreign and
grant mappings to WB for HVM/PVH guests. This is required because those
mappings will be likely be using unpopulated memory ranges in the p2m,
and those are usually UC in the MTRR state.
Having the guest set the correct MTRR attributes is also unlikely,
because the number of MTRR ranges is finite.
Roger Pau Monne (3):
x86/mtrr: remove stale function prototype
x86/mtrr: move epte_get_entry_emt to p2m-ept.c
x86/ept: force WB cache attributes for grant and foreign maps
xen/arch/x86/hvm/mtrr.c | 107 +---------------------
xen/arch/x86/hvm/vmx/vmx.c | 6 +-
xen/arch/x86/mm/p2m-ept.c | 145 ++++++++++++++++++++++++++++--
xen/include/asm-x86/hvm/vmx/vmx.h | 2 +
xen/include/asm-x86/mtrr.h | 7 +-
5 files changed, 147 insertions(+), 120 deletions(-)
--
2.31.1
next reply other threads:[~2021-05-28 17:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-28 17:39 Roger Pau Monne [this message]
2021-05-28 17:39 ` [PATCH 1/3] x86/mtrr: remove stale function prototype Roger Pau Monne
2021-05-31 6:48 ` Jan Beulich
2021-05-28 17:39 ` [PATCH 2/3] x86/mtrr: move epte_get_entry_emt to p2m-ept.c Roger Pau Monne
2021-05-31 7:00 ` Jan Beulich
2021-06-17 9:15 ` Tian, Kevin
2021-05-28 17:39 ` [PATCH 3/3] x86/ept: force WB cache attributes for grant and foreign maps Roger Pau Monne
2021-05-31 7:21 ` Jan Beulich
2021-06-02 9:36 ` Roger Pau Monné
2021-06-17 9:31 ` Tian, Kevin
2021-06-17 11:40 ` Roger Pau Monné
2021-06-17 11:57 ` Jan Beulich
2021-06-15 13:37 ` [PATCH 0/3] x86/ept: force WB to foreign and grant mappings Roger Pau Monné
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=20210528173935.29919-1-roger.pau@citrix.com \
--to=roger.pau@citrix.com \
--cc=andrew.cooper3@citrix.com \
--cc=george.dunlap@citrix.com \
--cc=jbeulich@suse.com \
--cc=jun.nakajima@intel.com \
--cc=kevin.tian@intel.com \
--cc=wl@xen.org \
--cc=xen-devel@lists.xenproject.org \
/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).