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019f3f84a4
Read RIP from vCPU state instead of pulling it from the emulation context when filling last_retry_eip, which is part of the anti-infinite-loop protection used when unprotecting and retrying instructions that hit a write-protected gfn. This will allow reusing the anti-infinite-loop protection in flows that never make it into the emulator. No functional change intended, as ctxt->eip is set to kvm_rip_read() in init_emulate_ctxt(), and EMULTYPE_PF emulation is mutually exclusive with EMULTYPE_NO_DECODE and EMULTYPE_SKIP, i.e. always goes through x86_decode_emulated_instruction() and hasn't advanced ctxt->eip (yet). Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-7-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> |
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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 reStructuredText 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.