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d60238b4c1
IGVM files can contain an initial VMSA that should be applied to each vcpu as part of the initial guest state. The sev_features flags are provided as part of the VMSA structure. However, KVM only allows sev_features to be set during initialization and not as the guest is being prepared for launch. This patch queries KVM for the supported set of sev_features flags and processes the VP context entries in the IGVM file during kvm_init to determine any sev_features flags set in the IGVM file. These are then provided in the call to KVM_SEV_INIT2 to ensure the guest state matches that specified in the IGVM file. The igvm process() function is modified to allow a partial processing of the file during initialization, with only the IGVM_VHT_VP_CONTEXT fields being processed. This means the function is called twice, firstly to extract the sev_features then secondly to actually configure the guest. Signed-off-by: Roy Hopkins <roy.hopkins@randomman.co.uk> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Acked-by: Gerd Hoffman <kraxel@redhat.com> Tested-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Liam Merwick <liam.merwick@oracle.com> Reviewed-by: Ani Sinha <anisinha@redhat.com> Link: https://lore.kernel.org/r/b2f986aae04e1da2aee530c9be22a54c0c59a560.1751554099.git.roy.hopkins@randomman.co.uk Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
3 months ago | |
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| .. | ||
| tpm | 4 months ago | |
| Kconfig | 1 year ago | |
| confidential-guest-support.c | 3 months ago | |
| cryptodev-builtin.c | 5 months ago | |
| cryptodev-hmp-cmds.c | 8 months ago | |
| cryptodev-lkcf.c | 5 months ago | |
| cryptodev-vhost-user.c | 5 months ago | |
| cryptodev-vhost.c | 7 months ago | |
| cryptodev.c | 5 months ago | |
| dbus-vmstate.c | 5 months ago | |
| dbus-vmstate1.xml | 4 years ago | |
| host_iommu_device.c | 5 months ago | |
| hostmem-epc.c | 5 months ago | |
| hostmem-file.c | 5 months ago | |
| hostmem-memfd.c | 5 months ago | |
| hostmem-ram.c | 5 months ago | |
| hostmem-shm.c | 5 months ago | |
| hostmem.c | 5 months ago | |
| igvm-cfg.c | 3 months ago | |
| igvm.c | 3 months ago | |
| igvm.h | 3 months ago | |
| iommufd.c | 3 months ago | |
| meson.build | 3 months ago | |
| rng-builtin.c | 5 months ago | |
| rng-egd.c | 5 months ago | |
| rng-random.c | 5 months ago | |
| rng.c | 5 months ago | |
| spdm-socket.c | 10 months ago | |
| trace-events | 3 months ago | |
| trace.h | 5 years ago | |
| vhost-user.c | 5 months ago | |