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The in-kernel AIA IMSIC support requires on-demand mapping / unmapping of Guest IMSIC address to Host IMSIC guest files. To help achieve this, we add kvm_riscv_stage2_ioremap() and kvm_riscv_stage2_iounmap() functions. These new functions for updating G-stage page table mappings will be called in atomic context so we have special "in_atomic" parameter for this purpose. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Signed-off-by: Anup Patel <anup@brainfault.org>
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.