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74 lines
2.6 KiB
74 lines
2.6 KiB
7 years ago
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From 5940d2c8abdf8872b779319fc1f85f066e37c2de Mon Sep 17 00:00:00 2001
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From: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
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Date: Mon, 14 Oct 2013 17:29:40 +0200
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Subject: [PATCH 25/60] RASD/schema: Add properties for device address
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representation
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Certain device types are only identifiable uniquely via a device
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address from the guest's perspective. Adding or removing devices
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has the potential to change the address of other unrelated devices
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and impact the guest's operation. Therefore it is less desirable
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to rely on implicit device address allocation but rather to use
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persistent device addresses.
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Depending on the device's bus type (PCI, SCSI, USB, CCW ...) the
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address specification format can vary, see also the libvirt
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domain XML documentation. To account for the various formats
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device addresses are specified with two array properties in the
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respective RASD classes: AddressProperties and AddressValues.
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The former contains a list of address property names and the latter
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the values.
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E.g., a PCI address is specified by the properties domain, bus,
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slot and function. Therefore, for a PCI device RASD we could
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have:
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AddressProperties = ['type', 'domain','bus', 'slot', 'function']
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AddressValues = ['pci', '0x0000', '0x00', '0x01', '0x2']
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resulting in a libvirt address element:
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<address type='pci' domain='0x0000' bus='0x00' slot='0x01'
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function='0x2'/>
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Initially, we support only disk and network devices for KVM guests.
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Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
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Signed-off-by: John Ferlan <jferlan@redhat.com>
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---
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schema/ResourceAllocationSettingData.mof | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/schema/ResourceAllocationSettingData.mof b/schema/ResourceAllocationSettingData.mof
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index ebc4806..bf1fbb6 100644
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--- a/schema/ResourceAllocationSettingData.mof
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+++ b/schema/ResourceAllocationSettingData.mof
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@@ -67,6 +67,12 @@ class KVM_DiskResourceAllocationSettingData : KVM_ResourceAllocationSettingData
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[Description ("if device is shareable")]
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boolean shareable;
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+
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+ [Description ("Device address property names")]
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+ string AddressProperties[];
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+
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+ [Description ("Device address property values")]
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+ string AddressValues[];
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};
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[Description ("LXC virtual disk configuration"),
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@@ -167,6 +173,12 @@ class KVM_NetResourceAllocationSettingData : KVM_ResourceAllocationSettingData
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[Description ("Filter REF")]
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string FilterRef;
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+
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+ [Description ("Device address property names")]
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+ string AddressProperties[];
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+
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+ [Description ("Device address property values")]
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+ string AddressValues[];
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};
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[Description ("LXC virtual network configuration"),
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--
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2.1.0
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