Merge branch 'kvm-guest-sev-migration' into kvm-master
authorPaolo Bonzini <pbonzini@redhat.com>
Thu, 11 Nov 2021 12:40:26 +0000 (07:40 -0500)
committerPaolo Bonzini <pbonzini@redhat.com>
Thu, 11 Nov 2021 12:40:26 +0000 (07:40 -0500)
commitb9ecb9a997333f90236cb6f3d52d83987a17addc
tree9d4c34b26ba67337923c8681daf32d1b162426c8
parentdebe436e77c72fcee804fb867f275e6d31aa999c
parent73f1b4fece216c2e72be74c4d0d0f71a0b944bec
Merge branch 'kvm-guest-sev-migration' into kvm-master

Add guest api and guest kernel support for SEV live migration.

Introduces a new hypercall to notify the host of changes to the page
encryption status.  If the page is encrypted then it must be migrated
through the SEV firmware or a helper VM sharing the key.  If page is
not encrypted then it can be migrated normally by userspace.  This new
hypercall is invoked using paravirt_ops.

Conflicts: sev_active() replaced by cc_platform_has(CC_ATTR_GUEST_MEM_ENCRYPT).
arch/x86/include/asm/mem_encrypt.h
arch/x86/include/asm/paravirt.h
arch/x86/include/asm/paravirt_types.h
arch/x86/kernel/kvm.c
arch/x86/kernel/paravirt.c
arch/x86/mm/mem_encrypt.c
arch/x86/mm/pat/set_memory.c