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David Woodhouse a8fddd4192 x86/xen: Add xen_no_vector_callback option to test PCI INTX delivery 
[ Upstream commit b36b0fe96a ]

It's useful to be able to test non-vector event channel delivery, to make
sure Linux will work properly on older Xen which doesn't have it.

It's also useful for those working on Xen and Xen-compatible hypervisors,
because there are guest kernels still in active use which use PCI INTX
even when vector delivery is available.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20210106153958.584169-4-dwmw2@infradead.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-27 11:55:01 +01:00
arch x86/xen: Add xen_no_vector_callback option to test PCI INTX delivery 2021-01-27 11:55:01 +01:00
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Documentation x86/xen: Add xen_no_vector_callback option to test PCI INTX delivery 2021-01-27 11:55:01 +01:00
drivers xen: Fix event channel callback via INTX/GSI 2021-01-27 11:55:00 +01:00
fs
include xen: Fix event channel callback via INTX/GSI 2021-01-27 11:55:00 +01:00
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net SUNRPC: Handle TCP socket sends with kernel_sendpage() again 2021-01-27 11:54:57 +01:00
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sound ALSA: hda/tegra: fix tegra-hda on tegra30 soc 2021-01-27 11:55:00 +01:00
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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.