public inbox for intel-gfx@lists.freedesktop.org
 help / color / mirror / Atom feed
From: Xiaolin Zhang <xiaolin.zhang@intel.com>
To: intel-gvt-dev@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Subject: [PATCH v1] drm/i915: Enhanced for initialize partially filled pagetables
Date: Thu, 28 Sep 2017 10:09:04 +0800	[thread overview]
Message-ID: <20170928020904.5030-1-xiaolin.zhang@intel.com> (raw)

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>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 731ce229a923..be52b139817d 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1175,7 +1175,7 @@ static int gen8_ppgtt_alloc_pd(struct i915_address_space *vm,
 			if (IS_ERR(pt))
 				goto unwind;
 
-			if (count < GEN8_PTES)
+			if (count < GEN8_PTES || intel_vgpu_active(vm->i915))
 				gen8_initialize_pt(vm, pt);
 
 			gen8_ppgtt_set_pde(vm, pd, pt, pde);
-- 
2.14.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

             reply	other threads:[~2017-09-28  2:09 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-28  2:09 Xiaolin Zhang [this message]
2017-09-28  2:33 ` ✓ Fi.CI.BAT: success for drm/i915: Enhanced for initialize partially filled pagetables Patchwork
2017-09-28  5:11 ` ✓ Fi.CI.IGT: " Patchwork
2017-09-28 14:25 ` [PATCH v1] " Joonas Lahtinen
2017-09-30  2:58   ` 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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170928020904.5030-1-xiaolin.zhang@intel.com \
    --to=xiaolin.zhang@intel.com \
    --cc=intel-gfx@lists.freedesktop.org \
    --cc=intel-gvt-dev@lists.freedesktop.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox