From: Joerg Roedel <joro@8bytes.org>
To: Zenghui Yu <yuzenghui@huawei.com>
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
dwmw2@infradead.org, baolu.lu@linux.intel.com, will@kernel.org,
jacob.jun.pan@linux.intel.com, eric.auger@redhat.com,
yi.l.liu@intel.com, kevin.tian@intel.com,
wanghaibin.wang@huawei.com
Subject: Re: [PATCH] iommu/vt-d: Fix status code for Allocate/Free PASID command
Date: Thu, 4 Mar 2021 13:32:31 +0100 [thread overview]
Message-ID: <20210304123231.GE26414@8bytes.org> (raw)
In-Reply-To: <20210227073909.432-1-yuzenghui@huawei.com>
On Sat, Feb 27, 2021 at 03:39:09PM +0800, Zenghui Yu wrote:
> As per Intel vt-d spec, Rev 3.0 (section 10.4.45 "Virtual Command Response
> Register"), the status code of "No PASID available" error in response to
> the Allocate PASID command is 2, not 1. The same for "Invalid PASID" error
> in response to the Free PASID command.
>
> We will otherwise see confusing kernel log under the command failure from
> guest side. Fix it.
>
> Fixes: 24f27d32ab6b ("iommu/vt-d: Enlightened PASID allocation")
> Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Applied for v5.12, thanks.
prev parent reply other threads:[~2021-03-04 12:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-27 7:39 [PATCH] iommu/vt-d: Fix status code for Allocate/Free PASID command Zenghui Yu
2021-03-01 0:44 ` Lu Baolu
2021-03-04 12:32 ` Joerg Roedel [this message]
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