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A mirror of the official Linux kernel repository just in case
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Another VCPU might try to modify the SCB while we are creating the shadow SCB. In general this is no problem - unless the compiler decides to not load values once, but e.g. twice. For us, this is only relevant when checking/working with such values. E.g. the prefix value, the mso, state of transactional execution and addresses of satellite blocks. E.g. if we blindly forward values (e.g. general purpose registers or execution controls after masking), we don't care. Leaving unpin_blocks() untouched for now, will handle it separately. The worst thing right now that I can see would be a missed prefix un/remap (mso, prefix, tx) or using wrong guest addresses. Nothing critical, but let's try to avoid unpredictable behavior. Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20180116171526.12343-2-david@redhat.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.