From: Wei Liu <wei.liu2@citrix.com>
To: Euan Harris <euan.harris@citrix.com>
Cc: kevin.tian@intel.com, Wei Liu <wei.liu2@citrix.com>,
jun.nakajima@intel.com, andrew.cooper3@citrix.com,
jbeulich@suse.com, xen-devel@lists.xenproject.org
Subject: Re: [PATCH] nested vmx: Intercept guest rdmsr for MSR_IA32_VMX_VMFUNC
Date: Wed, 8 Jun 2016 12:54:20 +0100 [thread overview]
Message-ID: <20160608115420.GJ5714@citrix.com> (raw)
In-Reply-To: <1465294718-31626-1-git-send-email-euan.harris@citrix.com>
On Tue, Jun 07, 2016 at 10:18:38AM +0000, Euan Harris wrote:
> Guest reads of MSR_IA32_VMX_VMFUNC should be handled by
> the logic in vmx_msr_read_intercept(). Otherwise a guest
> can read the raw host value of this MSR, even if nested
> vmx is disabled.
>
> Signed-off-by: Euan Harris <euan.harris@citrix.com>
For 4.7:
Release-acked-by: Wei Liu <wei.liu2@citrix.com>
> ---
> xen/arch/x86/hvm/vmx/vmx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
> index 743b5a1..6c0721f 100644
> --- a/xen/arch/x86/hvm/vmx/vmx.c
> +++ b/xen/arch/x86/hvm/vmx/vmx.c
> @@ -2624,7 +2624,7 @@ static int vmx_msr_read_intercept(unsigned int msr, uint64_t *msr_content)
> __vmread(GUEST_IA32_DEBUGCTL, msr_content);
> break;
> case IA32_FEATURE_CONTROL_MSR:
> - case MSR_IA32_VMX_BASIC...MSR_IA32_VMX_TRUE_ENTRY_CTLS:
> + case MSR_IA32_VMX_BASIC...MSR_IA32_VMX_VMFUNC:
> if ( !nvmx_msr_read_intercept(msr, msr_content) )
> goto gp_fault;
> break;
> --
> 1.7.10.4
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
prev parent reply other threads:[~2016-06-08 11:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-07 10:18 Euan Harris
2016-06-07 10:35 ` Jan Beulich
2016-06-07 10:53 ` Euan Harris
2016-06-07 11:39 ` Andrew Cooper
2016-06-08 6:09 ` Tian, Kevin
2016-06-08 11:54 ` Wei Liu [this message]
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=20160608115420.GJ5714@citrix.com \
--to=wei.liu2@citrix.com \
--cc=andrew.cooper3@citrix.com \
--cc=euan.harris@citrix.com \
--cc=jbeulich@suse.com \
--cc=jun.nakajima@intel.com \
--cc=kevin.tian@intel.com \
--cc=xen-devel@lists.xenproject.org \
--subject='Re: [PATCH] nested vmx: Intercept guest rdmsr for MSR_IA32_VMX_VMFUNC' \
/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
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).