linux-kernel - [PATCH 0/7] HWPOISON for hugepage backed KVM guest

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1295591340-1862-1-git-send-email-n-horiguchi@ah.jp.nec.com>
Date:	Fri, 21 Jan 2011 15:28:53 +0900
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Andi Kleen <tatsu@...jp.nec.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Mel Gorman <mel@....ul.ie>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Huang Ying <ying.huang@...el.com>,
	Fernando Luis Vazquez Cao <fernando@....ntt.co.jp>,
	tony.luck@...el.com, LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>
Subject: [PATCH 0/7] HWPOISON for hugepage backed KVM guest

Hi,

I wrote "HWPOISON for hugepage" patchset last year, but it didn't
cover the hugepages used by KVM guest because follow_hugetlb_pages()
called in a guest page fault code path didn't know about swap entry
formatted pmd entry.
This patchset fixes it and makes both soft and hard offline available
on hugepage backed KVM guest.

I appreciate all of your comments and reviews.

Thanks,
Naoya Horiguchi

Summary:

  [PATCH 1/7] hugetlb: check swap entry in follow_hugetlb_page()
  [PATCH 2/7] check hugepage swap entry in get_user_pages_fast()
  [PATCH 3/7] remove putback_lru_pages() in hugepage migration context
  [PATCH 4/7] hugetlb, migration: add migration_hugepage_entry_wait()
  [PATCH 5/7] hugetlb: fix race condition between hugepage soft offline and page fault
  [PATCH 6/7] HWPOISON: pass order to set/clear_page_hwpoison_huge_page()
  [PATCH 7/7] HWPOISON, hugetlb: fix hard offline for hugepage backed KVM guest

  arch/x86/mm/gup.c       |    9 +++++++++
  include/linux/swapops.h |   20 ++++++++++++++++++++
  mm/hugetlb.c            |   39 +++++++++++++++++++++++++++++----------
  mm/memory-failure.c     |   24 +++++++++++++-----------
  mm/migrate.c            |   33 +++++++++++++++++++++++++++++++++
  5 files changed, 104 insertions(+), 21 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/