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628a27731e
Add a Kconfig to allow building KVM without support for emulating a I/O APIC, PIC, and PIT, which is desirable for deployments that effectively don't support a fully in-kernel IRQ chip, i.e. never expect any VMM to create an in-kernel I/O APIC. E.g. compiling out support eliminates a few thousand lines of guest-facing code and gives security folks warm fuzzies. As a bonus, wrapping relevant paths with CONFIG_KVM_IOAPIC #ifdefs makes it much easier for readers to understand which bits and pieces exist specifically for fully in-kernel IRQ chips. Opportunistically convert all two in-kernel uses of __KVM_HAVE_IOAPIC to CONFIG_KVM_IOAPIC, e.g. rather than add a second #ifdef to generate a stub for kvm_arch_post_irq_routing_update(). Acked-by: Kai Huang <kai.huang@intel.com> Link: https://lore.kernel.org/r/20250611213557.294358-15-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> |
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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.