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2dbf12ae13
Currently sanitise_mte_tags() checks if it's an online page before attempting to sanitise the tags. Such detection should be done in the caller via the VM_MTE_ALLOWED vma flag. Since kvm_set_spte_gfn() does not have the vma, leave the page unmapped if not already tagged. Tag initialisation will be done on a subsequent access fault in user_mem_abort(). Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> [pcc@google.com: fix the page initializer] Signed-off-by: Peter Collingbourne <pcc@google.com> Reviewed-by: Steven Price <steven.price@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Marc Zyngier <maz@kernel.org> Cc: Peter Collingbourne <pcc@google.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20221104011041.290951-4-pcc@google.com
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.