From: Dave Young <dyoung@redhat.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Minfei Huang <mhuang@redhat.com>, Toshi Kani <toshi.kani@hpe.com>,
linux-arch@vger.kernel.org, linux-nvdimm@ml01.01.org,
x86@kernel.org, kexec@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
akpm@linux-foundation.org,
Dan Williams <dan.j.williams@intel.com>
Subject: Re: [PATCH v2 14/16] x86, nvdimm, kexec: Use walk_iomem_res_desc() for iomem search
Date: Mon, 4 Jan 2016 17:29:37 +0800 [thread overview]
Message-ID: <20160104092937.GB7033@dhcp-128-65.nay.redhat.com> (raw)
In-Reply-To: <20151227102406.GB19398@nazgul.tnic>
Hi, Boris
On 12/27/15 at 11:24am, Borislav Petkov wrote:
> On Sun, Dec 27, 2015 at 10:12:57AM +0800, Minfei Huang wrote:
> > You can refer the below link that you may get a clue about GART. This is
> > the fisrt time kexec-tools tried to support to ignore GART region in 2nd
> > kernel.
> >
> > http://lists.infradead.org/pipermail/kexec/2008-December/003096.html
>
> So theoretically we could export that IORES_DESC* enum in an uapi header and
> move kexec-tools to use that.
>
> However, I'm fuzzy on how exactly the whole compatibility thing is done
> with kexec-tools and the kernel. We probably would have to support
> newer kexec-tools on an older kernel and vice versa so I'd guess we
> should mark walk_iomem_res() deprecated so that people are encouraged to
> upgrade to newer kexec-tools...
Replied to Toshi old kernel will export the "GART" region for amd cards.
So for old kernel and new kexec-tools we will have problem.
I think add the GART desc for compitibility purpose is doable, no?
Thanks
Dave
next prev parent reply other threads:[~2016-01-04 9:29 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-25 22:09 [PATCH v2 01/16] resource: Add System RAM resource type Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 02/16] resource: make resource flags handled properly Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 03/16] resource: Add I/O resource descriptor Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 04/16] x86/e820: Set System RAM type and descriptor Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 05/16] ia64: " Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 06/16] arch: Set IORESOURCE_SYSTEM_RAM to System RAM Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 07/16] kexec: " Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 08/16] xen, mm: " Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2016-01-04 11:41 ` [Xen-devel] " David Vrabel
2015-12-25 22:09 ` [PATCH v2 09/16] drivers: Initialize resource entry to zero Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-28 21:37 ` Simon Horman
2015-12-28 21:37 ` Simon Horman
2015-12-25 22:09 ` [PATCH v2 10/16] resource: Change walk_system_ram to use System RAM type Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 11/16] arm/samsung: Change s3c_pm_run_res() " Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 12/16] memremap: Change region_intersects() to take @flags and @desc Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 13/16] resource: Add walk_iomem_res_desc() Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 14/16] x86,nvdimm,kexec: Use walk_iomem_res_desc() for iomem search Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-26 10:38 ` Borislav Petkov
2015-12-27 0:31 ` Toshi Kani
2015-12-27 0:31 ` Toshi Kani
2015-12-27 2:12 ` [PATCH v2 14/16] x86, nvdimm, kexec: " Minfei Huang
[not found] ` <20151227021257.GA13560-0VdLhd/A9Pl6Yz8KYMO23x/sF2h8X+2i0E9HWUfgJXw@public.gmane.org>
2015-12-27 10:24 ` Borislav Petkov
2015-12-27 10:24 ` Borislav Petkov
2016-01-04 9:29 ` Dave Young [this message]
[not found] ` <20160104092937.GB7033-0VdLhd/A9Pl+NNSt+8eSiB/sF2h8X+2i0E9HWUfgJXw@public.gmane.org>
2016-01-04 12:26 ` Borislav Petkov
2016-01-04 12:26 ` Borislav Petkov
2016-01-04 17:57 ` Toshi Kani
2016-01-04 17:57 ` Toshi Kani
2016-01-04 19:41 ` Borislav Petkov
2016-01-04 19:41 ` Borislav Petkov
2016-01-04 19:45 ` Toshi Kani
2016-01-05 5:20 ` Dave Young
2015-12-26 16:05 ` [PATCH v2 14/16] x86,nvdimm,kexec: " Minfei Huang
2015-12-26 16:05 ` Minfei Huang
2015-12-27 0:39 ` Toshi Kani
2015-12-27 0:39 ` Toshi Kani
2016-01-04 9:25 ` Dave Young
2016-01-04 9:25 ` Dave Young
2016-01-04 11:04 ` Dave Young
2015-12-25 22:09 ` [PATCH v2 15/16] checkpatch: Add warning on deprecated walk_iomem_res Toshi Kani
2015-12-25 22:09 ` Toshi Kani
2015-12-26 0:05 ` Joe Perches
2015-12-26 0:05 ` Joe Perches
2015-12-27 0:52 ` Toshi Kani
2015-12-27 0:52 ` Toshi Kani
2015-12-25 22:09 ` [PATCH v2 16/16] ACPI/EINJ: Allow memory error injection to NVDIMM Toshi Kani
2015-12-25 22:09 ` Toshi Kani
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