Re: [PATCH v3 73/75] x86/sev-es: Support CPU offline/online

2020-06-03 Thread Borislav Petkov
On Tue, Apr 28, 2020 at 05:17:23PM +0200, Joerg Roedel wrote: > From: Joerg Roedel > > Add a play_dead handler when running under SEV-ES. This is needed > because the hypervisor can't deliver an SIPI request to restart the AP. > Instead the kernel has to issue a VMGEXIT to halt the VCPU. When the

[PATCH v3 73/75] x86/sev-es: Support CPU offline/online

2020-04-28 Thread Joerg Roedel
From: Joerg Roedel Add a play_dead handler when running under SEV-ES. This is needed because the hypervisor can't deliver an SIPI request to restart the AP. Instead the kernel has to issue a VMGEXIT to halt the VCPU. When the hypervisor would deliver and SIPI is wakes up the VCPU instead. Signed