Messages in this thread | | | Subject | Re: [RFC PATCH 00/35] SEV-ES hypervisor support | From | Paolo Bonzini <> | Date | Mon, 30 Nov 2020 16:31:51 +0100 |
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On 16/09/20 02:19, Sean Christopherson wrote: > > TDX also selectively blocks/skips portions of other ioctl()s so that the > TDX code itself can yell loudly if e.g. .get_cpl() is invoked. The event > injection restrictions are due to direct injection not being allowed (except > for NMIs); all IRQs have to be routed through APICv (posted interrupts) and > exception injection is completely disallowed. > > kvm_vcpu_ioctl_x86_get_vcpu_events: > if (!vcpu->kvm->arch.guest_state_protected) > events->interrupt.shadow = kvm_x86_ops.get_interrupt_shadow(vcpu);
Perhaps an alternative implementation can enter the vCPU with immediate exit until no events are pending, and then return all zeroes?
Paolo
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