Re: [PATCH v2 00/12] x86/sev: KEXEC/KDUMP support for SEV-ES guests
From: Dave Hansen <hidden>
Date: 2021-09-13 16:03:47
Also in:
kexec, kvm, linux-coco, lkml
On 9/13/21 8:55 AM, Joerg Roedel wrote:
This does not work under SEV-ES, because the hypervisor has no access to the vCPU registers and can't make modifications to them. So an SEV-ES guest needs to reset the vCPU itself and park it using the AP-reset-hold protocol. Upon wakeup the guest needs to jump to real-mode and to the reset-vector configured in the AP-Jump-Table.
How does this end up looking to an end user that tries to kexec() from a an SEV-ES kernel? Does it just hang? _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization