mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-10 12:57:06 +09:00
593a5c2e3c
Clear mtf_pending on nested VM-Exit instead of handling the clear on a case-by-case basis in vmx_check_nested_events(). The pending MTF should never survive nested VM-Exit, as it is a property of KVM's run of the current L2, i.e. should never affect the next L2 run by L1. In practice, this is likely a nop as getting to L1 with nested_run_pending is impossible, and KVM doesn't correctly handle morphing a pending exception that occurs on a prior injected exception (need for re-injected exception being the other case where MTF isn't cleared). However, KVM will hopefully soon correctly deal with a pending exception on top of an injected exception. Add a TODO to document that KVM has an inversion priority bug between SMIs and MTF (and trap-like #DBS), and that KVM also doesn't properly save/restore MTF across SMI/RSM. Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Link: https://lore.kernel.org/r/20220830231614.3580124-12-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.