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f233646760
- Purge VMX's posted interrupt descriptor *before* loading APIC state when
handling KVM_SET_LAPIC. Purging the PID after loading APIC state results in
lost APIC timer IRQs as the APIC timer can be armed as part of loading APIC
state, i.e. can immediately pend an IRQ if the expiry is in the past.
- Clear the ICR.BUSY bit when handling trap-like x2APIC writes to suppress a
WARN due to KVM expecting the BUSY bit to be cleared when sending IPIs.
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Merge tag 'kvm-x86-apic-6.7' of https://github.com/kvm-x86/linux into HEAD
KVM x86 APIC changes for 6.7:
- Purge VMX's posted interrupt descriptor *before* loading APIC state when
handling KVM_SET_LAPIC. Purging the PID after loading APIC state results in
lost APIC timer IRQs as the APIC timer can be armed as part of loading APIC
state, i.e. can immediately pend an IRQ if the expiry is in the past.
- Clear the ICR.BUSY bit when handling trap-like x2APIC writes. This avoids a
WARN, due to KVM expecting the BUSY bit to be cleared when sending IPIs.
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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 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.