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| Filename | Latest commit message | Latest commit date |
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81b016676e
Some Posted-Interrupts from passthrough devices may be lost or overwritten when the vCPU is in runnable state. The SN (Suppress Notification) of PID (Posted Interrupt Descriptor) will be set when the vCPU is preempted (vCPU in KVM_MP_STATE_RUNNABLE state but not running on physical CPU). If a posted interrupt coming at this time, the irq remmaping facility will set the bit of PIR (Posted Interrupt Requests) without ON (Outstanding Notification). So this interrupt can't be sync to APIC virtualization register and will not be handled by Guest because ON is zero. Signed-off-by: Luwei Kang <luwei.kang@intel.com> [Eliminate the pi_clear_sn fast path. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| README | ||
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.