From: "Jan Beulich" <JBeulich@suse.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Xen-devel <xen-devel@lists.xen.org>
Subject: Re: [PATCH 0/7] Fixes to pagetable handling
Date: Wed, 01 Mar 2017 09:24:51 -0700 [thread overview]
Message-ID: <58B703E3020000780013EE2C@prv-mh.provo.novell.com> (raw)
In-Reply-To: <1488204198-23948-1-git-send-email-andrew.cooper3@citrix.com>
>>> On 27.02.17 at 15:03, <andrew.cooper3@citrix.com> wrote:
> Outstanding hardware issues discovered include:
> 1) There is an observable delay in AMD Fam 10h processors between loading a
> segment selector, and the results of the LDT/GDT memory access being
> visible in the pagetables (via the Access bits being set).
Are you saying the processor continues executing instructions
while the accessed bits are still clear? Or just that it takes very
long to complete the instruction doing the descriptor table access?
Jan
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next prev parent reply other threads:[~2017-03-01 16:24 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-27 14:03 [PATCH 0/7] Fixes to pagetable handling Andrew Cooper
2017-02-27 14:03 ` [PATCH 1/7] x86/hvm: Correctly identify implicit supervisor accesses Andrew Cooper
2017-03-01 15:05 ` Jan Beulich
2017-03-02 16:14 ` Tim Deegan
2017-03-07 10:46 ` George Dunlap
2017-03-07 10:51 ` Andrew Cooper
2017-03-07 15:00 ` Paul Durrant
2017-02-27 14:03 ` [PATCH 2/7] x86/shadow: Try to correctly " Andrew Cooper
2017-03-01 15:11 ` Jan Beulich
2017-03-02 16:14 ` Tim Deegan
2017-03-07 11:26 ` George Dunlap
2017-03-07 11:55 ` Andrew Cooper
2017-02-27 14:03 ` [PATCH 3/7] x86/pagewalk: Helpers for reserved bit handling Andrew Cooper
2017-03-01 15:57 ` Jan Beulich
2017-03-02 12:23 ` Andrew Cooper
2017-03-02 14:12 ` Tim Deegan
2017-03-02 14:17 ` Andrew Cooper
2017-03-02 15:09 ` Tim Deegan
2017-03-02 15:14 ` Andrew Cooper
2017-03-02 16:15 ` Tim Deegan
2017-02-27 14:03 ` [PATCH 4/7] x86/hvm: Adjust hvm_nx_enabled() to match how Xen behaves Andrew Cooper
2017-03-01 16:00 ` Jan Beulich
2017-02-27 14:03 ` [PATCH 5/7] x86/shadow: Use the pagewalk reserved bits helpers Andrew Cooper
2017-03-01 16:03 ` Jan Beulich
2017-03-02 12:26 ` Andrew Cooper
2017-03-02 12:51 ` Jan Beulich
2017-03-02 12:56 ` Andrew Cooper
2017-03-02 13:19 ` Jan Beulich
2017-03-02 14:32 ` Andrew Cooper
2017-03-06 9:26 ` Tim Deegan
2017-03-02 14:33 ` Tim Deegan
2017-02-27 14:03 ` [PATCH 6/7] x86/pagewalk: Consistently use guest_walk_*() helpers for translation Andrew Cooper
2017-03-01 16:22 ` Jan Beulich
2017-03-01 16:33 ` Andrew Cooper
2017-03-01 16:41 ` Jan Beulich
2017-03-02 16:15 ` Tim Deegan
2017-03-06 18:25 ` George Dunlap
2017-02-27 14:03 ` [PATCH 7/7] x86/pagewalk: Re-implement the pagetable walker Andrew Cooper
2017-03-02 11:52 ` Jan Beulich
2017-03-02 12:00 ` Andrew Cooper
2017-03-02 12:54 ` Jan Beulich
2017-03-02 16:16 ` Tim Deegan
2017-03-06 18:28 ` George Dunlap
2017-03-06 18:33 ` Andrew Cooper
2017-03-06 18:39 ` George Dunlap
2017-03-07 12:57 ` George Dunlap
2017-03-01 16:24 ` Jan Beulich [this message]
2017-03-01 16:32 ` [PATCH 0/7] Fixes to pagetable handling Andrew Cooper
2017-03-06 16:42 ` [RFC XTF PATCH] Pagetable Emulation testing Andrew Cooper
2017-03-13 15:45 ` Jan Beulich
2017-03-13 17:48 ` Andrew Cooper
2017-03-14 11:17 ` Jan Beulich
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