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

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Date:   Tue, 27 Sep 2022 20:34:44 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     "Tai, Thomas" <thomas.tai@...cle.com>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "jarkko@...nel.org" <jarkko@...nel.org>,
        "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>,
        "Tai, Thomas" <thomas.tai@...cle.com>
Subject: RE: [PATCH] x86/sgx: Add code to inject hwpoison into SGX memory

> 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.

Looks good to me.

[I wish that Linux hadn't called this "hwpoison_inject()" because there's nothing
hardware related about this injection. But you are just an innocent consumer of
that poor naming choice]

Reviewed-by: Tony Luck <tony.luck@...el.com>

-Tony