From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
To: Xiaolin Zhang <xiaolin.zhang@intel.com>,
intel-gvt-dev@lists.freedesktop.org,
intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH v1] drm/i915: Enhanced for initialize partially filled pagetables
Date: Thu, 28 Sep 2017 17:25:01 +0300 [thread overview]
Message-ID: <1506608701.9186.44.camel@linux.intel.com> (raw)
In-Reply-To: <20170928020904.5030-1-xiaolin.zhang@intel.com>
On Thu, 2017-09-28 at 10:09 +0800, Xiaolin Zhang wrote:
> if vgpu active, the page table entry should be initialized after
> allocation and then the hypersivor can ping pages succesuffly,
> otherwise hypervisor will ping pages failed and the host will print
> a lot of annoying errors such as “ERROR gvt: guest page write error -22,
> gfn 0x7ada8, pa 0x7ada89a8, var 0x6, len 1” when create linux guest.
>
> Signed-off-by: Xiaolin Zhang <xiaolin.zhang@intel.com>
Why does the hypervisor try to access the entries prior to them being
made valid for hardware?
Regards, Joonas
--
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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next prev parent reply other threads:[~2017-09-28 14:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-28 2:09 [PATCH v1] drm/i915: Enhanced for initialize partially filled pagetables Xiaolin Zhang
2017-09-28 2:33 ` ✓ Fi.CI.BAT: success for " Patchwork
2017-09-28 5:11 ` ✓ Fi.CI.IGT: " Patchwork
2017-09-28 14:25 ` Joonas Lahtinen [this message]
2017-09-30 2:58 ` [PATCH v1] " Zhang, Xiaolin
2017-10-02 9:03 ` Joonas Lahtinen
2017-10-03 7:50 ` Wang, Zhi A
2017-10-25 14:52 ` ✗ Fi.CI.BAT: failure for " Patchwork
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