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241f0aadb8
Bail from ppgtt_populate_shadow_entry() if an unexpected GTT entry type is encountered instead of subtly falling through to the common "direct shadow" path. Eliminating the default/error path's reliance on the common handling will allow hoisting intel_gvt_dma_map_guest_page() into the case statements so that the 2MiB case can try intel_gvt_dma_map_guest_page() and fallback to splitting the entry on failure. Reviewed-by: Zhi Wang <zhi.a.wang@intel.com> Tested-by: Yongwei Ma <yongwei.ma@intel.com> Reviewed-by: Yan Zhao <yan.y.zhao@intel.com> Link: https://lore.kernel.org/r/20230729013535.1070024-8-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.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.