Re: [PATCH v3] KVM: SVM: Make sure GHCB is mapped before updating

2021-04-09 Thread Sean Christopherson
On Fri, Apr 09, 2021, Tom Lendacky wrote: > From: Tom Lendacky > > Access to the GHCB is mainly in the VMGEXIT path and it is known that the > GHCB will be mapped. But there are two paths where it is possible the GHCB > might not be mapped. > > The sev_vcpu_deliver_sipi_vector() routine will upd

Re: [PATCH v3] KVM: SVM: Make sure GHCB is mapped before updating

2021-04-09 Thread Tom Lendacky
On 4/9/21 9:38 AM, Tom Lendacky wrote: > From: Tom Lendacky > > Access to the GHCB is mainly in the VMGEXIT path and it is known that the > GHCB will be mapped. But there are two paths where it is possible the GHCB > might not be mapped. > > The sev_vcpu_deliver_sipi_vector() routine will update