Play nice with systems where SEV and SEV-ES are enabled, but all ASIDs have been carved out for SEV-eS, i.e. where actually running SEV guests is impossible. v4: - Convert all ASID usage to unsigned integers. - Clean up sev_asid_new() so that it doesn't needlessly overload its return value. - Split out the -EBUSY=>-EINVAL change to a separate patch. v3: https://lore.kernel.org/all/20240104190520.62510-1-Ashish.Kalra@xxxxxxx Ashish Kalra (1): KVM: SVM: Add support for allowing zero SEV ASIDs Sean Christopherson (3): KVM: SVM: Set sev->asid in sev_asid_new() instead of overloading the return KVM: SVM: Use unsigned integers when dealing with ASIDs KVM: SVM: Return -EINVAL instead of -EBUSY on attempt to re-init SEV/SEV-ES arch/x86/kvm/svm/sev.c | 58 +++++++++++++++++++++++++----------------- arch/x86/kvm/trace.h | 10 ++++---- 2 files changed, 39 insertions(+), 29 deletions(-) base-commit: 41bccc98fb7931d63d03f326a746ac4d429c1dd3 -- 2.43.0.429.g432eaa2c6b-goog
