KVM: SVM: SEV-ES groundwork

Hi Paolo,

here is v4 of the groundwork patches for the upcoming SEV-ES support in the Linux kernel. They are part of both the client patch-set and the KVM hypervisor patches (under development).

Patch 1 necessary to fix a compile warning about a stack-frame getting too large. Patches 2 and 3 define the Guest Hypervisor Communication Block (GHCB) and accessor functions and the last patch is a cleanup.

This version addresses more review comments from Sean. Additionally the patches are now checkpatch-clean.

It would be great if you could consider them for v5.9, so that the client and the hypervisor patch-sets can be developed more independently of each other.

Please let me know what you think.

Regards,

Joerg

Borislav Petkov (1):
KVM: SVM: Use __packed shorthand

Joerg Roedel (2):
KVM: SVM: nested: Don't allocate VMCB structures on stack
KVM: SVM: Add GHCB Accessor functions

Tom Lendacky (1):
KVM: SVM: Add GHCB definitions

 arch/x86/include/asm/svm.h | 100 ++++++++++++++++++++++++++++++++++---
 arch/x86/kvm/svm/nested.c  |  47 +++++++++++------
 arch/x86/kvm/svm/svm.c     |   2 +
 3 files changed, 128 insertions(+), 21 deletions(-)

2.17.1