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* kvm-arm64/pkvm-hyp-sharing:
: .
: Series from Quentin Perret, implementing HYP page share/unshare:
:
: This series implements an unshare hypercall at EL2 in nVHE
: protected mode, and makes use of it to unmmap guest-specific
: data-structures from EL2 stage-1 during guest tear-down.
: Crucially, the implementation of the share and unshare
: routines use page refcounts in the host kernel to avoid
: accidentally unmapping data-structures that overlap a common
: page.
: [...]
: .
KVM: arm64: pkvm: Unshare guest structs during teardown
KVM: arm64: Expose unshare hypercall to the host
KVM: arm64: Implement do_unshare() helper for unsharing memory
KVM: arm64: Implement __pkvm_host_share_hyp() using do_share()
KVM: arm64: Implement do_share() helper for sharing memory
KVM: arm64: Introduce wrappers for host and hyp spin lock accessors
KVM: arm64: Extend pkvm_page_state enumeration to handle absent pages
KVM: arm64: pkvm: Refcount the pages shared with EL2
KVM: arm64: Introduce kvm_share_hyp()
KVM: arm64: Implement kvm_pgtable_hyp_unmap() at EL2
KVM: arm64: Hook up ->page_count() for hypervisor stage-1 page-table
KVM: arm64: Fixup hyp stage-1 refcount
KVM: arm64: Refcount hyp stage-1 pgtable pages
KVM: arm64: Provide {get,put}_page() stubs for early hyp allocator
Signed-off-by: Marc Zyngier <maz@kernel.org>
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| 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 | ||
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| 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.