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SubjectRe: [PATCH v30 07/20] x86/sgx: Enumerate and track EPC sections
On Tue, May 26, 2020 at 08:56:14PM -0700, Sean Christopherson wrote:
> On Mon, May 25, 2020 at 11:23:04AM +0200, Borislav Petkov wrote:
> > On Fri, May 15, 2020 at 03:43:57AM +0300, Jarkko Sakkinen wrote:
> > > +struct sgx_epc_section sgx_epc_sections[SGX_MAX_EPC_SECTIONS];
> > > +int sgx_nr_epc_sections;
> >
> > We have become very averse against global stuff. What is going to use
> > those, only sgx code I assume...?
>
> Yes, only SGX code. The reclaim/swap code needs access to the sections,
> and that code is in a different file, reclaim.c. I don't have a super
> strong objection to sucking reclaim.c into main.c, but I'm somewhat
> indifferent on code organization as a whole. Jarkko likely has a stronger
> opinion.

I'll change it.

It's not quite as easy as just "sucking the file in". All the commits
that touch the file need to be reworked:

$ git --no-pager log --format="%H %s" arch/x86/kernel/cpu/sgx/reclaim.c
5aeca6dabf767e9350ee3188ba25ceb21f3162b4 x86/sgx: Add a page reclaimer
de9b1088959f36ffdaf43a49bfea1c7f9f81cac7 x86/sgx: Linux Enclave Driver
08d8fcb74fe268059ee58fcc2a0833b244e1f22a x86/sgx: Enumerate and track EPC sections

/Jarkko

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