From: Borislav Petkov <bp@alien8.de>
To: Smita Koralahalli Channabasappa <skoralah@amd.com>
Cc: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>,
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@amd.com
Subject: Re: [PATCH 1/5] x86/mce/inject: Check if a bank is unpopulated before error simulation
Date: Tue, 28 Sep 2021 00:05:22 +0200 [thread overview]
Message-ID: <YVJAIlGr5EvepsOg@zn.tnic> (raw)
In-Reply-To: <7e790ba1-0b31-690c-7bd3-d8361109cef5@amd.com>
On Mon, Sep 27, 2021 at 04:56:17PM -0500, Smita Koralahalli Channabasappa wrote:
> Yes, this makes sense to me now. But you meant to say inj_ipid_set()
> instead of inj_bank_set()..?
Yeah, I had it correct before:
"This whole thing belongs into inj_ipid_set() where you should verify... "
>
> Something like this:
>
> -MCE_INJECT_SET(ipid)
>
> +static int inj_ipid_set(void *data, u64 val)
> +{
> + struct mce *m = (struct mce*)data;
>
> + if cpu_feature_enabled(X86_FEATURE_SMCA)) {
>
> + rdmsrl_on_cpu(..
> ..
> ..
> + m->ipid = val;
> + ..
> +}
Yes, and return proper error codes.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2021-09-27 22:08 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-15 23:27 [PATCH 0/5] x86/mce: Handle error simulation failures in mce-inject module Smita Koralahalli
2021-09-15 23:27 ` [PATCH 1/5] x86/mce/inject: Check if a bank is unpopulated before error simulation Smita Koralahalli
2021-09-24 8:26 ` Borislav Petkov
2021-09-27 19:51 ` Smita Koralahalli Channabasappa
2021-09-27 20:15 ` Borislav Petkov
2021-09-27 21:56 ` Smita Koralahalli Channabasappa
2021-09-27 22:05 ` Borislav Petkov [this message]
2021-10-11 21:12 ` Koralahalli Channabasappa, Smita
2021-10-14 18:22 ` Borislav Petkov
2021-10-14 20:26 ` Koralahalli Channabasappa, Smita
2021-10-14 20:57 ` Borislav Petkov
2021-09-15 23:27 ` [PATCH 2/5] x86/mce/inject: Set the valid bit in MCA_STATUS before error injection Smita Koralahalli
2021-09-24 8:26 ` Borislav Petkov
2021-09-15 23:27 ` [PATCH 3/5] x86/mce: Use msr_ops in prepare_msrs() Smita Koralahalli
2021-09-24 8:26 ` Borislav Petkov
2021-09-15 23:27 ` [PATCH 4/5] x86/mce/inject: Check for writes ignored in status registers Smita Koralahalli
2021-09-15 23:27 ` [PATCH 5/5] x86/mce/mce-inject: Return error code to userspace from mce-inject module Smita Koralahalli
2021-09-24 8:26 ` Borislav Petkov
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