From: Keir Fraser <keir.xen@gmail.com>
To: Jan Beulich <JBeulich@suse.com>,
xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [PATCH] x86: make sure memory block is RAM before passing to the allocator
Date: Mon, 04 Nov 2013 13:25:43 +0000 [thread overview]
Message-ID: <CE9D50D7.3CC9D%keir.xen@gmail.com> (raw)
In-Reply-To: <5277842A02000078000FEF63@nat28.tlf.novell.com>
On 04/11/2013 10:25, "Jan Beulich" <JBeulich@suse.com> wrote:
> Memory blocks outside of the always visible 1:1 mapping range get
> passed to the allocator separately (once enough other setup was done).
> Skipping non-RAM regions, however, was forgotten in adc5afbf ("x86:
> support up to 16Tb").
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
> --- a/xen/arch/x86/setup.c
> +++ b/xen/arch/x86/setup.c
> @@ -1155,6 +1155,8 @@ void __init __start_xen(unsigned long mb
> {
> uint64_t s, e;
>
> + if ( boot_e820.map[i].type != E820_RAM )
> + continue;
> s = (boot_e820.map[i].addr + mask) & ~mask;
> e = (boot_e820.map[i].addr + boot_e820.map[i].size) & ~mask;
> if ( PFN_DOWN(e) <= limit )
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
prev parent reply other threads:[~2013-11-04 13:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-04 10:25 [PATCH] x86: make sure memory block is RAM before passing to the allocator Jan Beulich
2013-11-04 13:25 ` Keir Fraser [this message]
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