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From:   "Longpeng (Mike, Cloud Infrastructure Service Product Dept.)" 
        <longpeng2@huawei.com>
To:     Greg KH <gregkh@linuxfoundation.org>
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        "Gonglei (Arei)" <arei.gonglei@huawei.com>,
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Subject: RE: [PATCH v2 1/4] nitro_enclaves: merge contiguous physical memory
 regions
Thread-Topic: [PATCH v2 1/4] nitro_enclaves: merge contiguous physical memory
 regions
Thread-Index: AQHXrvraMNZnMWAuzUKsEPXAU06oZquuFF8AgAEeIgA=
Date:   Wed, 22 Sep 2021 00:27:44 +0000
Message-ID: <545781e2bac049dea6a46164fce86267@huawei.com>
References: <20210921151039.1502-1-longpeng2@huawei.com>
 <20210921151039.1502-2-longpeng2@huawei.com> <YUn4Qq/vrqRai/FB@kroah.com>
In-Reply-To: <YUn4Qq/vrqRai/FB@kroah.com>
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> -----Original Message-----
> From: Greg KH [mailto:gregkh@linuxfoundation.org]
> Sent: Tuesday, September 21, 2021 11:21 PM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
> <longpeng2@huawei.com>
> Cc: andraprs@amazon.com; lexnv@amazon.com; alcioa@amazon.com;
> linux-kernel@vger.kernel.org; Gonglei (Arei) <arei.gonglei@huawei.com>;
> kamal@canonical.com; pbonzini@redhat.com; sgarzare@redhat.com;
> stefanha@redhat.com; vkuznets@redhat.com; ne-devel-upstream@amazon.com
> Subject: Re: [PATCH v2 1/4] nitro_enclaves: merge contiguous physical memory
> regions
> 
> On Tue, Sep 21, 2021 at 11:10:36PM +0800, Longpeng(Mike) wrote:
> > There can be cases when there are more memory regions that need to be
> > set for an enclave than the maximum supported number of memory regions
> > per enclave. One example can be when the memory regions are backed by 2
> > MiB hugepages (the minimum supported hugepage size).
> >
> > Let's merge the adjacent regions if they are physical contiguous. This
> > way the final number of memory regions is less than before merging and
> > could potentially avoid reaching maximum.
> >
> > Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
> > ---
> >  drivers/virt/nitro_enclaves/ne_misc_dev.c | 87
> ++++++++++++++++++++-----------
> >  1 file changed, 58 insertions(+), 29 deletions(-)
> >
> 
> What changed from v1?

It seems you missed the cover letter ?