Thomas Lamprecht 6d825fcff3 backport constraining guest-supported xfeatures only at KVM_GET_XSAVE{2} ... This improves compatibility for guests w.r.t. live-migration, or live snapshot rollback, to hosts with less (FPU) xfeatures supported, as long as the set of features that was actually exposed to the guest is still supported. This improves on the ad856280ddea ("x86/kvm/fpu: Limit guest user_xfeatures to supported bits of XCR0") bug fix. Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>		2023-10-21 15:16:56 +02:00
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kernel	backport constraining guest-supported xfeatures only at KVM_GET_XSAVE{2}	2023-10-21 15:16:56 +02:00