From: Joerg Roedel <[email protected]>
Hi,
two small patches to disable kexec on x86 when running as an SEV-ES
guest. Trying to kexec a new kernel would fail anyway because there is
no mechanism yet to hand over the APs from the old to the new kernel.
Supporting this needs changes in the Hypervisor and the guest kernel
as well.
This code is currently being work on, but disable kexec in SEV-ES
guests until it is ready.
Please review.
Regards,
Joerg
Joerg Roedel (2):
kexec: Allow architecture code to opt-out at runtime
x86/kexec/64: Forbid kexec when running as an SEV-ES guest
arch/x86/kernel/machine_kexec_64.c | 8 ++++++++
kernel/kexec.c | 14 ++++++++++++++
2 files changed, 22 insertions(+)
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2.31.1