linux-kernel - RE: [PATCH V2 1/1] x86/sgx: Add code to inject hwpoison into SGX memory

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Message-ID: <SJ0PR10MB462307B1EA3097E1E725309DFD589@SJ0PR10MB4623.namprd10.prod.outlook.com>
Date:   Sun, 2 Oct 2022 14:51:22 +0000
From:   Thomas Tai <thomas.tai@...cle.com>
To:     Jarkko Sakkinen <jarkko@...nel.org>
CC:     "tony.luck@...el.com" <tony.luck@...el.com>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "reinette.chatre@...el.co" <reinette.chatre@...el.co>,
        "naoya.horiguchi@....com" <naoya.horiguchi@....com>,
        "linmiaohe@...wei.com" <linmiaohe@...wei.com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH V2 1/1] x86/sgx: Add code to inject hwpoison into SGX
 memory


> -----Original Message-----
> From: Jarkko Sakkinen <jarkko@...nel.org>
> Sent: September 30, 2022 5:51 PM
> To: Thomas Tai <thomas.tai@...cle.com>
> Cc: tony.luck@...el.com; dave.hansen@...ux.intel.com;
> reinette.chatre@...el.co; naoya.horiguchi@....com; linmiaohe@...wei.com;
> akpm@...ux-foundation.org; linux-mm@...ck.org; linux-
> kernel@...r.kernel.org
> Subject: Re: [PATCH V2 1/1] x86/sgx: Add code to inject hwpoison into SGX
> memory
> 
> On Wed, Sep 28, 2022 at 11:38:32AM -0400, Thomas Tai wrote:
> > Inspired by commit c6acb1e7bf46 (x86/sgx: Add hook to error injection
> > address validation), add a similar code in hwpoison_inject function to
> > check if the address is located in SGX Memory. The error will then be
> > handled by the arch_memory_failure function in the SGX driver.
> >
> > Signed-off-by: Thomas Tai <thomas.tai@...cle.com>
> > ---
> >  Documentation/mm/hwpoison.rst | 44
> +++++++++++++++++++++++++++++++++++
> >  mm/hwpoison-inject.c          |  4 ++++
> >  2 files changed, 48 insertions(+)
> 
> Hmm.. no change log.
> 
> What was the change in-between v1 and v2?

Hi Jarkko,
I put the change log in [PATCH V2 0/1]. Following is the details, hope you find it useful.

Changes since v1:
- Add a comment in hwpoison_inject as suggested by Miaohe
- v1: Reviewed-by: Tony Luck <tony.luck@...el.com>
- v1: Reviewed-by: Miaohe Lin <linmiaohe@...wei.com>

Thanks,
Thomas
> 
> BR, Jarkko