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[Qemu-devel] [PATCH v3] [RFC] s390x/vfio: VFIO-AP interrupt control inte

From: Pierre Morel
Subject: [Qemu-devel] [PATCH v3] [RFC] s390x/vfio: VFIO-AP interrupt control interception
Date: Thu, 14 Feb 2019 13:14:53 +0100

This QEMU patch is to be used in conjonction with the following patch
series in LINUX.

vfio: ap: ioctl definitions for AP Queue Interrupt Control

The LINUX patch series handle all the interception in KVM
and we do not need to take care of the interception in QEMU.

The goal of this patch is to define the apqi CPU feature which
will be proposed by KVM when the AP Interrupt Control facility
is to be available in the guest.

This feature must be turned on by QEMU to intercept AP instructions
on the KVM guest.
The QEMU command line to turn this feature on looks something like:

    qemu-system-s390x ... -cpu xxx,apqi=on ...

Pierre Morel (1):
  s390x/cpumodel: Set up CPU model for AQIC interception

 target/s390x/cpu_features.c     | 1 +
 target/s390x/cpu_features_def.h | 1 +
 target/s390x/cpu_models.c       | 1 +
 target/s390x/gen-features.c     | 1 +
 4 files changed, 4 insertions(+)


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