From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Xen-devel <xen-devel@lists.xen.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: [PATCH v2 0/8] Map Xen code/data/bss with superpages
Date: Tue, 23 Feb 2016 16:31:17 +0000 [thread overview]
Message-ID: <1456245085-2302-1-git-send-email-andrew.cooper3@citrix.com> (raw)
And make use of NX and RO attributes wherever possible.
After this series, the pagetable layout looks like:
(XEN) *** Dumping Xen text/data/bss mappings from ffff82d080000000
(XEN) cr3 0000000826484000, idle_pg_table ffff82d080818000, pa 00000000ac018000
(XEN) l2_xenmap: ffff82d080814000, pa 00000000ac014000
(XEN) L4[261] = 00000000ac017163 X Gl S RW P
(XEN) L3[322] = 00000000ac014163 X Gl S RW P
(XEN) L2[000] = 00000000ab8001e1 X Gl + S RO P <- .text
(XEN) L2[001] = 00000000aba001a1 X Gl + S RO P <- .text
(XEN) L2[002] = 80000000abc001a1 NX Gl + S RO P <- .rodata
<- discarded .init
(XEN) L2[004] = 80000000ac0001e3 NX Gl + S RW P <- .data and .bss
(XEN) L2[511] = 000000084dcc7063 X S RW P <- stubs
Andrew Cooper (8):
xen/lockprof: Move .lockprofile.data into .rodata
xen/x86: Improvements to build-time pagetable generation
xen/x86: Construct the {l2,l3}_bootmap at compile time
xen/memguard: Drop memguard_init() entirely
xen/x86: Disable CR0.WP while applying alternatives
xen/x86: Reorder .data and .init when linking
xen/x86: Use 2M superpages for text/data/bss mappings
xen/x86: Unilaterally remove .init mappings
xen/arch/arm/xen.lds.S | 14 +++----
xen/arch/x86/alternative.c | 7 ++++
xen/arch/x86/boot/head.S | 18 +++-----
xen/arch/x86/boot/x86_64.S | 64 ++++++++++++++++++++--------
xen/arch/x86/mm.c | 16 -------
xen/arch/x86/setup.c | 64 ++++++++++++++++++++--------
xen/arch/x86/x86_64/mm.c | 4 --
xen/arch/x86/xen.lds.S | 102 +++++++++++++++++++++++++++++----------------
xen/include/asm-arm/mm.h | 1 -
xen/include/asm-x86/mm.h | 2 -
xen/include/xen/kernel.h | 7 ++++
xen/include/xen/spinlock.h | 2 +-
12 files changed, 186 insertions(+), 115 deletions(-)
--
2.1.4
next reply other threads:[~2016-02-23 16:31 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-23 16:31 Andrew Cooper [this message]
2016-02-23 16:31 ` [PATCH v2 1/8] xen/lockprof: Move .lockprofile.data into .rodata Andrew Cooper
2016-02-24 11:16 ` Jan Beulich
2016-02-23 16:31 ` [PATCH v2 2/8] xen/x86: Improvements to build-time pagetable generation Andrew Cooper
2016-02-24 11:24 ` Jan Beulich
2016-02-24 13:57 ` Andrew Cooper
2016-02-24 14:15 ` Jan Beulich
2016-02-24 14:58 ` Andrew Cooper
2016-02-24 15:18 ` Jan Beulich
2016-02-24 15:22 ` Andrew Cooper
2016-02-24 15:48 ` Jan Beulich
2016-02-24 16:14 ` Andrew Cooper
2016-02-24 16:59 ` Jan Beulich
2016-02-24 17:28 ` Andrew Cooper
2016-02-23 16:31 ` [PATCH v2 3/8] xen/x86: Construct the {l2, l3}_bootmap at compile time Andrew Cooper
2016-02-24 11:34 ` Jan Beulich
2016-02-24 11:40 ` Andrew Cooper
2016-02-24 11:50 ` Jan Beulich
2016-02-24 12:07 ` Andrew Cooper
2016-02-23 16:31 ` [PATCH v2 4/8] xen/memguard: Drop memguard_init() entirely Andrew Cooper
2016-02-24 13:26 ` Jan Beulich
2016-02-24 15:02 ` Stefano Stabellini
2016-02-23 16:31 ` [PATCH v2 5/8] xen/x86: Disable CR0.WP while applying alternatives Andrew Cooper
2016-02-23 16:31 ` [PATCH v2 6/8] xen/x86: Reorder .data and .init when linking Andrew Cooper
2016-02-24 11:41 ` Jan Beulich
2016-02-24 11:44 ` Andrew Cooper
2016-02-23 16:31 ` [PATCH v2 7/8] xen/x86: Use 2M superpages for text/data/bss mappings Andrew Cooper
2016-02-24 13:17 ` Jan Beulich
2016-02-24 13:21 ` Andrew Cooper
2016-02-24 13:23 ` Andrew Cooper
2016-02-23 16:31 ` [PATCH v2 8/8] xen/x86: Unilaterally remove .init mappings Andrew Cooper
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=1456245085-2302-1-git-send-email-andrew.cooper3@citrix.com \
--to=andrew.cooper3@citrix.com \
--cc=xen-devel@lists.xen.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).