linux-kernel - Re: [PATCH v3 2/2] x86/boot/64: round memory hole size up to next PMD page.

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Message-ID: <20190926102339.owzlugs6sro6rodn@box>
Date:   Thu, 26 Sep 2019 13:23:39 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Steve Wahl <steve.wahl@....com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Juergen Gross <jgross@...e.com>,
        Brijesh Singh <brijesh.singh@....com>,
        Jordan Borgner <mail@...dan-borgner.de>,
        Feng Tang <feng.tang@...el.com>, linux-kernel@...r.kernel.org,
        Zhenzhong Duan <zhenzhong.duan@...cle.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Baoquan He <bhe@...hat.com>, russ.anderson@....com,
        dimitri.sivanich@....com, mike.travis@....com
Subject: Re: [PATCH v3 2/2] x86/boot/64: round memory hole size up to next
 PMD page.

On Tue, Sep 24, 2019 at 04:04:31PM -0500, Steve Wahl wrote:
> The kernel image map is created using PMD pages, which can include
> some extra space beyond what's actually needed.  Round the size of the
> memory hole we search for up to the next PMD boundary, to be certain
> all of the space to be mapped is usable RAM and includes no reserved
> areas.
> 
> Signed-off-by: Steve Wahl <steve.wahl@....com>
> Cc: stable@...r.kernel.org

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
 Kirill A. Shutemov