From: Christoph Hellwig <hch@lst.de>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>,
Kirti Wankhede <kwankhede@nvidia.com>,
Tony Krowiak <akrowiak@linux.ibm.com>,
Halil Pasic <pasic@linux.ibm.com>,
Jason Herne <jjherne@linux.ibm.com>,
Eric Farman <farman@linux.ibm.com>,
Matthew Rosato <mjrosato@linux.ibm.com>,
Zhenyu Wang <zhenyuw@linux.intel.com>,
Zhi Wang <zhi.a.wang@intel.com>, Jason Gunthorpe <jgg@nvidia.com>,
kvm@vger.kernel.org, linux-s390@vger.kernel.org,
intel-gvt-dev@lists.freedesktop.org
Subject: Re: simplify the mdev interface v8
Date: Wed, 28 Sep 2022 14:11:10 +0200 [thread overview]
Message-ID: <20220928121110.GA30738@lst.de> (raw)
In-Reply-To: <20220927155426.23f4b8e9.alex.williamson@redhat.com>
On Tue, Sep 27, 2022 at 03:54:26PM -0600, Alex Williamson wrote:
> Oops, I had to drop this, I get a null pointer from gvt-g code:
Ok, this is a stupid bug in the second patch in the series. I did not
hit it in my mdev testing as my script just uses the first type and
thus never hits these, but as your trace showed mdevctl and once I
used that I could reproduce it. The fix for patch 2 is below, and
the git tree at:
git://git.infradead.org/users/hch/misc.git mvdev-lifetime
has been updated with that folded in and the recent reviews.
---
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index 1b67328c714f1..b0d5dafd013f4 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -123,7 +123,7 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt)
sprintf(gvt->types[i].name, "GVTg_V%u_%s",
GRAPHICS_VER(gvt->gt->i915) == 8 ? 4 : 5, conf->name);
- gvt->types->conf = conf;
+ gvt->types[i].conf = conf;
gvt->types[i].avail_instance = min(low_avail / conf->low_mm,
high_avail / conf->high_mm);
next prev parent reply other threads:[~2022-09-28 12:11 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-23 9:26 simplify the mdev interface v8 Christoph Hellwig
2022-09-23 9:26 ` [PATCH 01/14] drm/i915/gvt: fix a memory leak in intel_gvt_init_vgpu_types Christoph Hellwig
2022-09-23 9:26 ` [PATCH 02/14] drm/i915/gvt: simplify vgpu configuration management Christoph Hellwig
2022-09-23 9:26 ` [PATCH 03/14] vfio/mdev: make mdev.h standalone includable Christoph Hellwig
2022-09-23 9:26 ` [PATCH 04/14] vfio/mdev: embedd struct mdev_parent in the parent data structure Christoph Hellwig
2022-09-27 1:28 ` Eric Farman
2022-09-23 9:26 ` [PATCH 05/14] vfio/mdev: simplify mdev_type handling Christoph Hellwig
2022-09-27 1:28 ` Eric Farman
2022-09-23 9:26 ` [PATCH 06/14] vfio/mdev: remove mdev_from_dev Christoph Hellwig
2022-09-23 9:26 ` [PATCH 07/14] vfio/mdev: unexport mdev_bus_type Christoph Hellwig
2022-09-23 9:26 ` [PATCH 08/14] vfio/mdev: remove mdev_parent_dev Christoph Hellwig
2022-09-23 9:26 ` [PATCH 09/14] vfio/mdev: remove mtype_get_parent_dev Christoph Hellwig
2022-09-27 1:28 ` Eric Farman
2022-09-23 9:26 ` [PATCH 10/14] vfio/mdev: consolidate all the device_api sysfs into the core code Christoph Hellwig
2022-09-27 1:28 ` Eric Farman
2022-09-23 9:26 ` [PATCH 11/14] vfio/mdev: consolidate all the name " Christoph Hellwig
2022-09-27 1:28 ` Eric Farman
2022-09-23 9:26 ` [PATCH 12/14] vfio/mdev: consolidate all the available_instance " Christoph Hellwig
2022-09-27 1:28 ` Eric Farman
2022-09-23 9:26 ` [PATCH 13/14] vfio/mdev: consolidate all the description " Christoph Hellwig
2022-09-23 9:26 ` [PATCH 14/14] vfio/mdev: add mdev available instance checking to the core Christoph Hellwig
2022-09-27 1:28 ` Eric Farman
2022-09-27 20:07 ` simplify the mdev interface v8 Alex Williamson
2022-09-27 21:54 ` Alex Williamson
2022-09-28 12:11 ` Christoph Hellwig [this message]
2022-09-28 18:56 ` Alex Williamson
2022-09-29 7:11 ` Christoph Hellwig
2022-09-30 21:31 ` Alex Williamson
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