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Date: Fri, 15 Dec 2017 17:39:25 +0100
From: Ingo Molnar <mingo@kernel.org>
To: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: intel-gfx@lists.freedesktop.org,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Anusha Srivatsa <anusha.srivatsa@intel.com>,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        David Airlie <airlied@linux.ie>,
        dri-devel@lists.freedesktop.org, "H . Peter Anvin" <hpa@zytor.com>,
        Thomas Gleixner <tglx@linutronix.de>, x86@kernel.org,
        stable@vger.kernel.org
Subject: Re: [PATCH v2] x86/gpu: add CFL to early quirks
Message-ID: <20171215163925.harred3ei4ew6gca@gmail.com>
References: <20171213200425.2954-1-lucas.demarchi@intel.com>
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* Lucas De Marchi <lucas.demarchi@intel.com> wrote:

> CFL was missing from intel_early_ids[]. The PCI ID needs to be there to
> allow the memory region to be stolen, otherwise we could have RAM being
> arbitrarily overwritten if for example we keep using the UEFI framebuffer,
> depending on how BIOS has set up the e820 map.
> 
> Fixes: b056f8f3d6b9 ("drm/i915/cfl: Add Coffee Lake PCI IDs for S Skus.")
> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
> Cc: Jani Nikula <jani.nikula@linux.intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: intel-gfx@lists.freedesktop.org
> Cc: dri-devel@lists.freedesktop.org
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: H. Peter Anvin <hpa@zytor.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: x86@kernel.org
> Cc: <stable@vger.kernel.org> # v4.13+ 0890540e21cf drm/i915: add GT number to intel_device_info
> Cc: <stable@vger.kernel.org> # v4.13+ 41693fd52373 drm/i915/kbl: Change a KBL pci id to GT2 from GT1.5
> Cc: <stable@vger.kernel.org> # v4.13+
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> ---
> 
> v2: improve commit message, add Fixes tag and CC stable
> 
>  arch/x86/kernel/early-quirks.c | 1 +
>  include/drm/i915_pciids.h      | 6 ++++++
>  2 files changed, 7 insertions(+)

Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo