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| author | Paolo Bonzini <pbonzini@redhat.com> | 2021-11-11 07:40:26 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-11-11 07:40:26 -0500 |
| commit | b9ecb9a997333f90236cb6f3d52d83987a17addc (patch) | |
| tree | 9d4c34b26ba67337923c8681daf32d1b162426c8 /arch/x86/kernel/paravirt.c | |
| parent | debe436e77c72fcee804fb867f275e6d31aa999c (diff) | |
| parent | 73f1b4fece216c2e72be74c4d0d0f71a0b944bec (diff) | |
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).
Diffstat (limited to 'arch/x86/kernel/paravirt.c')
| -rw-r--r-- | arch/x86/kernel/paravirt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 7157c2df3bc2..7f7636aac620 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -337,6 +337,7 @@ struct paravirt_patch_template pv_ops = { (void (*)(struct mmu_gather *, void *))tlb_remove_page, .mmu.exit_mmap = paravirt_nop, + .mmu.notify_page_enc_status_changed = paravirt_nop, #ifdef CONFIG_PARAVIRT_XXL .mmu.read_cr2 = __PV_IS_CALLEE_SAVE(pv_native_read_cr2), |