From: "Tian, Kevin" <kevin.tian@intel.com>
To: Jan Beulich <JBeulich@suse.com>, Wei Liu <wei.liu2@citrix.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
"Nakajima, Jun" <jun.nakajima@intel.com>,
"Zhang, Haozhong" <haozhong.zhang@intel.com>
Subject: Re: [PATCH] Revert "x86/hvm: add support for pcommit instruction"
Date: Tue, 7 Jun 2016 00:55:20 +0000 [thread overview]
Message-ID: <AADFC41AFE54684AB9EE6CBC0274A5D15F890A2D@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <57556EA402000078000F1F2F@prv-mh.provo.novell.com>
> From: Jan Beulich [mailto:JBeulich@suse.com]
> Sent: Monday, June 06, 2016 6:38 PM
>
> >>> On 06.06.16 at 12:31, <wei.liu2@citrix.com> wrote:
> > On Mon, Jun 06, 2016 at 02:54:47AM -0600, Jan Beulich wrote:
> >> >>> On 06.06.16 at 07:56, <haozhong.zhang@intel.com> wrote:
> >> > This reverts commit cfacce340608be5f94ce0c8f424487b63c3d5399.
> >> >
> >> > Platforms supporting Intel NVDIMM are now required to provide
> >> > persistency once pmem stores are accepted by the memory subsystem.
> >> > This is usually achieved by a platform-level feature known as ADR
> >> > (Asynchronous DRAM Refresh) that flushes any memory subsystem write
> >> > pending queues on power loss/shutdown. Therefore, the pcommit
> >> > instruction, which has not yet shipped on any product (and will not),
> >> > is no longer needed and is deprecated.
> >> >
> >> > Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> >>
> >> Acked-by: Jan Beulich <jbeulich@suse.com>
> >>
> >> Wei - certainly something to consider for 4.7.
> >>
> >
> > Sure. No point in shipping feature that won't show up in hardware.
> >
> > Release-acked-by: Wei Liu <wei.liu2@citrix.com>
> >
> > But please wait a bit before committing while we try to sort out RC5 and
> > branching etc.
>
> Sure. Got to wait for a VMX maintainer ack anyway.
>
Here it is:
Acked-by: Kevin Tian <kevin.tian@intel.com>
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prev parent reply other threads:[~2016-06-07 0:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-06 5:56 [PATCH] Revert "x86/hvm: add support for pcommit instruction" Haozhong Zhang
2016-06-06 8:54 ` Jan Beulich
2016-06-06 10:31 ` Wei Liu
2016-06-06 10:37 ` Jan Beulich
2016-06-07 0:55 ` Tian, Kevin [this message]
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