From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
To: Jun Nakajima <jun.nakajima@intel.com>
Cc: kvm@vger.kernel.org, Gleb Natapov <gleb@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH v3 10/13] nEPT: Nested INVEPT
Date: Tue, 21 May 2013 17:16:18 +0800 [thread overview]
Message-ID: <519B3B62.8060904@linux.vnet.ibm.com> (raw)
In-Reply-To: <1368939152-11406-10-git-send-email-jun.nakajima@intel.com>
On 05/19/2013 12:52 PM, Jun Nakajima wrote:
> From: Nadav Har'El <nyh@il.ibm.com>
>
> If we let L1 use EPT, we should probably also support the INVEPT instruction.
>
> In our current nested EPT implementation, when L1 changes its EPT table for
> L2 (i.e., EPT12), L0 modifies the shadow EPT table (EPT02), and in the course
Hmm?
L0 can not always intercept L1's changes due to unsync shadow pages...
> of this modification already calls INVEPT. Therefore, when L1 calls INVEPT,
> we don't really need to do anything. In particular we *don't* need to call
So, i can not understand why we need not handle INVEPT.
next prev parent reply other threads:[~2013-05-21 9:16 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-19 4:52 [PATCH v3 01/13] nEPT: Support LOAD_IA32_EFER entry/exit controls for L1 Jun Nakajima
2013-05-19 4:52 ` [PATCH v3 02/13] nEPT: Move gpte_access() and prefetch_invalid_gpte() to paging_tmpl.h Jun Nakajima
2013-05-20 12:34 ` Paolo Bonzini
2013-05-19 4:52 ` [PATCH v3 03/13] nEPT: Add EPT tables support " Jun Nakajima
2013-05-21 7:52 ` Xiao Guangrong
2013-05-21 8:30 ` Xiao Guangrong
2013-05-21 9:01 ` Gleb Natapov
2013-05-21 11:05 ` Xiao Guangrong
2013-05-21 22:26 ` Nakajima, Jun
2013-05-22 1:10 ` Xiao Guangrong
2013-05-22 6:16 ` Gleb Natapov
2013-06-11 11:32 ` Gleb Natapov
2013-06-17 12:11 ` Xiao Guangrong
2013-06-18 10:57 ` Gleb Natapov
2013-06-18 12:51 ` Xiao Guangrong
2013-06-18 13:01 ` Gleb Natapov
2013-05-19 4:52 ` [PATCH v3 04/13] nEPT: Define EPT-specific link_shadow_page() Jun Nakajima
2013-05-20 12:43 ` Paolo Bonzini
2013-05-21 8:15 ` Xiao Guangrong
2013-05-21 21:44 ` Nakajima, Jun
2013-05-19 4:52 ` [PATCH v3 05/13] nEPT: MMU context for nested EPT Jun Nakajima
2013-05-21 8:50 ` Xiao Guangrong
2013-05-21 22:30 ` Nakajima, Jun
2013-05-19 4:52 ` [PATCH v3 06/13] nEPT: Fix cr3 handling in nested exit and entry Jun Nakajima
2013-05-20 13:19 ` Paolo Bonzini
2013-06-12 12:42 ` Gleb Natapov
2013-05-19 4:52 ` [PATCH v3 07/13] nEPT: Fix wrong test in kvm_set_cr3 Jun Nakajima
2013-05-20 13:17 ` Paolo Bonzini
2013-05-19 4:52 ` [PATCH v3 08/13] nEPT: Some additional comments Jun Nakajima
2013-05-20 13:21 ` Paolo Bonzini
2013-05-19 4:52 ` [PATCH v3 09/13] nEPT: Advertise EPT to L1 Jun Nakajima
2013-05-20 13:05 ` Paolo Bonzini
2013-05-19 4:52 ` [PATCH v3 10/13] nEPT: Nested INVEPT Jun Nakajima
2013-05-20 12:46 ` Paolo Bonzini
2013-05-21 9:16 ` Xiao Guangrong [this message]
2013-05-19 4:52 ` [PATCH v3 11/13] nEPT: Miscelleneous cleanups Jun Nakajima
2013-05-19 4:52 ` [PATCH v3 12/13] nEPT: Move is_rsvd_bits_set() to paging_tmpl.h Jun Nakajima
2013-05-19 4:52 ` [PATCH v3 13/13] nEPT: Inject EPT violation/misconfigration Jun Nakajima
2013-05-20 13:09 ` Paolo Bonzini
2013-05-21 10:56 ` Xiao Guangrong
2013-05-20 12:33 ` [PATCH v3 01/13] nEPT: Support LOAD_IA32_EFER entry/exit controls for L1 Paolo Bonzini
2013-07-02 3:01 ` Zhang, Yang Z
2013-07-02 13:59 ` Gleb Natapov
2013-07-02 14:28 ` Jan Kiszka
2013-07-02 15:15 ` Gleb Natapov
2013-07-02 15:34 ` Jan Kiszka
2013-07-02 15:43 ` Gleb Natapov
2013-07-04 8:42 ` Zhang, Yang Z
2013-07-08 12:37 ` Gleb Natapov
2013-07-08 14:28 ` Zhang, Yang Z
2013-07-08 16:08 ` Gleb Natapov
-- strict thread matches above, loose matches on Subject: below --
2013-05-09 0:53 Jun Nakajima
2013-05-09 0:53 ` [PATCH v3 02/13] nEPT: Move gpte_access() and prefetch_invalid_gpte() to paging_tmpl.h Jun Nakajima
2013-05-09 0:53 ` [PATCH v3 03/13] nEPT: Add EPT tables support " Jun Nakajima
2013-05-09 0:53 ` [PATCH v3 04/13] nEPT: Define EPT-specific link_shadow_page() Jun Nakajima
2013-05-09 0:53 ` [PATCH v3 05/13] nEPT: MMU context for nested EPT Jun Nakajima
2013-05-09 0:53 ` [PATCH v3 06/13] nEPT: Fix cr3 handling in nested exit and entry Jun Nakajima
2013-05-09 0:53 ` [PATCH v3 07/13] nEPT: Fix wrong test in kvm_set_cr3 Jun Nakajima
2013-05-09 0:53 ` [PATCH v3 08/13] nEPT: Some additional comments Jun Nakajima
2013-05-09 0:53 ` [PATCH v3 09/13] nEPT: Advertise EPT to L1 Jun Nakajima
2013-05-09 0:53 ` [PATCH v3 10/13] nEPT: Nested INVEPT Jun Nakajima
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=519B3B62.8060904@linux.vnet.ibm.com \
--to=xiaoguangrong@linux.vnet.ibm.com \
--cc=gleb@redhat.com \
--cc=jun.nakajima@intel.com \
--cc=kvm@vger.kernel.org \
--cc=pbonzini@redhat.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.