xen-devel.lists.xenproject.org archive mirror
 help / color / mirror / Atom feed
From: Euan Harris <euan.harris@citrix.com>
To: xen-devel@lists.xenproject.org
Cc: andrew.cooper3@citrix.com, kevin.tian@intel.com,
	Euan Harris <euan.harris@citrix.com>,
	jun.nakajima@intel.com, jbeulich@suse.com
Subject: [PATCH 0/2] Validate host VMX MSRs before accessing them
Date: Thu, 9 Jun 2016 10:14:08 +0000	[thread overview]
Message-ID: <1465467250-8742-1-git-send-email-euan.harris@citrix.com> (raw)

nvmx_msr_read_intercept() does not check the prerequisites before
MSR_IA32_VMX_VMFUNC on the host.   Accessing these MSRs from a nested
VMX guest running on a host which does not support them will cause
Xen to crash with a GPF.

Euan Harris (2):
  nested vmx: Fix comment typos in nvmx_msr_read_intercept()
  nested vmx: Validate host VMX MSRs before accessing them

 xen/arch/x86/hvm/vmx/vvmx.c |   32 +++++++++++++++++++++++---------
 1 file changed, 23 insertions(+), 9 deletions(-)


Xen-devel mailing list

             reply	other threads:[~2016-06-09 10:14 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-09 10:14 Euan Harris [this message]
2016-06-09 10:14 ` [PATCH 1/2] nested vmx: Fix comment typos in nvmx_msr_read_intercept() Euan Harris
2016-06-12  7:37   ` Tian, Kevin
2016-06-09 10:14 ` [PATCH 2/2] nested vmx: Validate host VMX MSRs before accessing them Euan Harris
2016-06-09 12:47   ` Jan Beulich
2016-06-09 13:20     ` Euan Harris
2016-06-12  7:39       ` Tian, Kevin
2016-06-13 12:13 ` [PATCH 0/2] " 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:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1465467250-8742-1-git-send-email-euan.harris@citrix.com \
    --to=euan.harris@citrix.com \
    --cc=andrew.cooper3@citrix.com \
    --cc=jbeulich@suse.com \
    --cc=jun.nakajima@intel.com \
    --cc=kevin.tian@intel.com \
    --cc=xen-devel@lists.xenproject.org \


* 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).