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Linux kernel source tree
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* kvm-arm64/cacheable-pfnmap: : Cacheable PFNMAP support at stage-2, courtesy of Ankit Agrawal : : For historical reasons, KVM only allows cacheable mappings at stage-2 : when a kernel alias exists in the direct map for the memory region. On : hardware without FEAT_S2FWB, this is necessary as KVM must do cache : maintenance to keep guest/host accesses coherent. : : This is unnecessarily restrictive on systems with FEAT_S2FWB and : CTR_EL0.DIC, as KVM no longer needs to perform cache maintenance to : maintain correctness. : : Allow cacheable mappings at stage-2 on supporting hardware when the : corresponding VMA has cacheable memory attributes and advertise a : capability to userspace such that a VMM can determine if a stage-2 : mapping can be established (e.g. VFIO device). KVM: arm64: Expose new KVM cap for cacheable PFNMAP KVM: arm64: Allow cacheable stage 2 mapping using VMA flags KVM: arm64: Block cacheable PFNMAP mapping KVM: arm64: Assume non-PFNMAP/MIXEDMAP VMAs can be mapped cacheable KVM: arm64: Rename the device variable to s2_force_noncacheable Signed-off-by: Oliver Upton <oliver.upton@linux.dev> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| 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 reStructuredText 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.