From: Jarkko Sakkinen <jarkko@kernel.org>
To: "Luck, Tony" <tony.luck@intel.com>,
"Li, Zhiquan1" <zhiquan1.li@intel.com>,
"Huang, Kai" <kai.huang@intel.com>, "Du, Fan" <fan.du@intel.com>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"linux-sgx@vger.kernel.org" <linux-sgx@vger.kernel.org>,
"Hansen, Dave" <dave.hansen@intel.com>,
"Zhang, Cathy" <cathy.zhang@intel.com>
Cc: "Christopherson,, Sean" <seanjc@google.com>
Subject: Re: [PATCH v3 0/3] x86/sgx: fine grained SGX MCA behavior
Date: Wed, 08 Jun 2022 03:19:57 +0300 [thread overview]
Message-ID: <d6e089d7f79d427e824efee0eb480c44ab71ad23.camel@kernel.org> (raw)
In-Reply-To: <e1c78d1a31234384a005736115906127@intel.com>
On Tue, 2022-06-07 at 15:43 +0000, Luck, Tony wrote:
> > I think Tony hinted me about mechanism to test MCA behaviour in
> > kernel but I cannot recall it anymore. Was there a way to make
> > to simulate a memory failure, and use that to test the patch
> > set?
>
> It is possible to inject real errors into enclave memory using ACPI/EINJ.
> See the final part of:
>
> Documentation/firmware-guide/acpi/apei/einj.rst
>
> You do a faked test by just asking to offline a page:
>
> # echo {pfn} > /sys/devices/system/memory/hard_offline_page
OK, I'll try this out in a VM. Thank you.
BR, Jarkko
prev parent reply other threads:[~2022-06-08 2:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-25 10:06 [PATCH v3 0/3] x86/sgx: fine grained SGX MCA behavior Zhiquan Li
2022-05-26 0:35 ` Jarkko Sakkinen
2022-06-03 1:15 ` Du, Fan
2022-06-06 10:40 ` Kai Huang
2022-06-07 6:35 ` Jarkko Sakkinen
2022-06-07 7:02 ` Zhiquan Li
2022-06-07 8:26 ` Jarkko Sakkinen
2022-06-07 15:43 ` Luck, Tony
2022-06-08 0:19 ` Jarkko Sakkinen [this message]
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