90c73795af
This is the basic framework for the new KVM device supporting the XIVE native exploitation mode. The user interface exposes a new KVM device to be created by QEMU, only available when running on a L0 hypervisor. Support for nested guests is not available yet. The XIVE device reuses the device structure of the XICS-on-XIVE device as they have a lot in common. That could possibly change in the future if the need arise. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
20 lines
725 B
Plaintext
20 lines
725 B
Plaintext
POWER9 eXternal Interrupt Virtualization Engine (XIVE Gen1)
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==========================================================
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Device types supported:
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KVM_DEV_TYPE_XIVE POWER9 XIVE Interrupt Controller generation 1
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This device acts as a VM interrupt controller. It provides the KVM
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interface to configure the interrupt sources of a VM in the underlying
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POWER9 XIVE interrupt controller.
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Only one XIVE instance may be instantiated. A guest XIVE device
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requires a POWER9 host and the guest OS should have support for the
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XIVE native exploitation interrupt mode. If not, it should run using
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the legacy interrupt mode, referred as XICS (POWER7/8).
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* Groups:
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1. KVM_DEV_XIVE_GRP_CTRL
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Provides global controls on the device
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