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e0c5d74e82
* libvirt fills in cbitpos and reducedPhysBits for us * libvirt errors if type is missing * libvirt errors if host/qemu doesn't support sev So drop it all. This simplifies testing because we don't need sev domcaps in place just to generate the XML Signed-off-by: Cole Robinson <crobinso@redhat.com>
36 lines
1.3 KiB
Python
36 lines
1.3 KiB
Python
from ..xmlbuilder import XMLBuilder, XMLProperty
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class DomainLaunchSecurity(XMLBuilder):
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"""
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Class for generating <launchSecurity> XML element
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"""
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XML_NAME = "launchSecurity"
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_XML_PROP_ORDER = ["type", "cbitpos", "reducedPhysBits", "policy",
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"session", "dhCert"]
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type = XMLProperty("./@type")
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cbitpos = XMLProperty("./cbitpos", is_int=True)
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reducedPhysBits = XMLProperty("./reducedPhysBits", is_int=True)
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policy = XMLProperty("./policy")
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session = XMLProperty("./session")
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dhCert = XMLProperty("./dhCert")
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kernelHashes = XMLProperty("./@kernelHashes", is_yesno=True)
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def _set_defaults_sev(self, guest):
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if not guest.os.is_q35() or not guest.is_uefi():
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raise RuntimeError(_("SEV launch security requires a Q35 UEFI machine"))
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# 'policy' is a mandatory 4-byte argument for the SEV firmware,
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# if missing, let's use 0x03 which, according to the table at
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# https://libvirt.org/formatdomain.html#launchSecurity:
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# (bit 0) - disables the debugging mode
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# (bit 1) - disables encryption key sharing across multiple guests
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if self.policy is None:
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self.policy = "0x03"
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def set_defaults(self, guest):
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if self.type == "sev":
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return self._set_defaults_sev(guest)
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