From: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>
To: Borislav Petkov <bp@alien8.de>
Cc: x86@kernel.org, linux-edac@vger.kernel.org,
linux-kernel@vger.kernel.org, Tony Luck <tony.luck@intel.com>,
"H . Peter Anvin" <hpa@zytor.com>,
Yazen Ghannam <yazen.ghannam@amd.com>
Subject: Re: [PATCH v5] x86/mce: Check for writes ignored in MCA_STATUS register
Date: Mon, 27 Jun 2022 13:57:38 -0700 [thread overview]
Message-ID: <02bba339-bf85-f178-c1b6-13d553c4a48c@amd.com> (raw)
In-Reply-To: <YrcJKOUSJsmodo70@zn.tnic>
On 6/25/2022 6:10 AM, Borislav Petkov wrote:
> On Fri, Jun 24, 2022 at 03:34:42PM -0700, Smita Koralahalli wrote:
>> The wrmsrl_safe() doesn't throw an error here.
>> I think we need to read back the written value and check for it whatsoever.
>> What do you think?
> Ah, that's the write-ignored thing. Not the #GP-generating thing when
> McStatusWrEn=0.
>
> Sorry, I got confused.
>
> Can you pls change that part back to reading the previously written
> value and send me a tested version?
>
> Thx.
Thanks, I have sent them.
>
prev parent reply other threads:[~2022-06-27 20:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-10 19:25 Smita Koralahalli
2022-06-22 17:29 ` Borislav Petkov
2022-06-24 22:34 ` Smita Koralahalli
2022-06-25 13:10 ` Borislav Petkov
2022-06-27 20:57 ` Smita Koralahalli [this message]
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