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Message-Id: <20210325124611.a9dce500b0bcbb1836580719@intel.com>
Date: Thu, 25 Mar 2021 12:46:11 +1300
From: Kai Huang <kai.huang@...el.com>
To: Paolo Bonzini <pbonzini@...hat.com>
Cc: Borislav Petkov <bp@...en8.de>,
Sean Christopherson <seanjc@...gle.com>, kvm@...r.kernel.org,
x86@...nel.org, linux-sgx@...r.kernel.org,
linux-kernel@...r.kernel.org, jarkko@...nel.org, luto@...nel.org,
dave.hansen@...el.com, rick.p.edgecombe@...el.com,
haitao.huang@...el.com, tglx@...utronix.de, mingo@...hat.com,
hpa@...or.com
Subject: Re: [PATCH v3 03/25] x86/sgx: Wipe out EREMOVE from
sgx_free_epc_page()
On Thu, 25 Mar 2021 00:39:01 +0100 Paolo Bonzini wrote:
> On 25/03/21 00:23, Kai Huang wrote:
> > I changed to below (with slight modification on Paolo's):
> >
> > /* Error message for EREMOVE failure, when kernel is about to leak EPC page */
> > #define EREMOVE_ERROR_MESSAGE \
> > "EREMOVE returned %d (0x%x) and an EPC page was leaked. SGX may become unusuable. " \
> > "This is likely a kernel bug. Refer to Documentation/x86/sgx.rst for more information."
> >
> > I got a checkpatch warning however:
> >
> > WARNING: It's generally not useful to have the filename in the file
> > #60: FILE: Documentation/x86/sgx.rst:223:
> > +This is likely a kernel bug. Refer to Documentation/x86/sgx.rst for more
>
> Yeah, this is more or less a false positive.
>
> Paolo
>
Thanks.
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