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Zenghui Yu a7cefaccca iommu/vt-d: Fix status code for Allocate/Free PASID command 
[ Upstream commit 444d66a23c1f1e4c4d12aed4812681d0ad835d60 ]

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: 24f27d32ab ("iommu/vt-d: Enlightened PASID allocation")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20210227073909.432-1-yuzenghui@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-09 11:11:15 +01:00
arch arm64: mm: Set ZONE_DMA size based on early IORT scan 2021-03-09 11:11:13 +01:00
block
certs
crypto
Documentation
drivers iommu/vt-d: Fix status code for Allocate/Free PASID command 2021-03-09 11:11:15 +01:00
fs io_uring: ignore double poll add on the same waitqueue head 2021-03-09 11:11:12 +01:00
include ALSA: hda: intel-nhlt: verify config type 2021-03-09 11:11:14 +01:00
init
ipc
kernel ring-buffer: Force before_stamp and write_stamp to be different on discard 2021-03-09 11:11:12 +01:00
lib
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mm
net
samples
scripts ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount 2021-03-09 11:11:14 +01:00
security
sound ALSA: hda: intel-nhlt: verify config type 2021-03-09 11:11:14 +01:00
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Makefile Linux 5.10.21 2021-03-07 12:34:17 +01:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.