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[ Upstream commitb61cf04c49] VMD driver can disable or enable MSI remapping by changing VMCONFIG_MSI_REMAP register. This register needs to be set to the default value during soft reboots. Drives failed to enumerate when Windows boots after performing a soft reboot from Linux. Windows doesn't support MSI remapping disable feature and stale register value hinders Windows VMD driver initialization process. Adding vmd_shutdown function to make sure to set the VMCONFIG register to the default value. Link: https://lore.kernel.org/r/20230224202811.644370-1-nirmal.patel@linux.intel.com Fixes:ee81ee84f8("PCI: vmd: Disable MSI-X remapping when possible") Signed-off-by: Nirmal Patel <nirmal.patel@linux.intel.com> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Reviewed-by: Jon Derrick <jonathan.derrick@linux.dev> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.