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bab2c1990b
Before opregion version 2.0 VBT data is stored in opregion mailbox #4, but when VBT data exceeds 6KB size and cannot be within mailbox #4 then from opregion v2.0+, Extended VBT region, next to opregion is used to hold the VBT data, so the total size will be opregion size plus extended VBT region size. Since opregion v2.0 with physical host VBT address would not be practically available for end user and guest can not directly access host physical address, so it is not supported. Cc: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Swee Yee Fonn <swee.yee.fonn@intel.com> Signed-off-by: Fred Gao <fred.gao@intel.com> Message-Id: <20210325170953.24549-1-fred.gao@intel.com> Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> |
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| certs | ||
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.