[PATCH 0/7 v3] Rework of msrpm optimization and additional fixes for nested svm

[Joerg Roedel <joerg.roedel@amd.com>]

Hi,

this is the third round of the msrpm merge optimization patches for
nested svm.  The change to the previous post it the introduction of an
direc_access_msrs list which contains all msrs that a guest might
directly access. This list is used to initialize the msrpm bitmaps and
the msrpm_offset table used for merging two tables. This optimization
more than doubles the performance of kernel compiles in the nested guest
using nested-shadow paging.
The other random fixes in this set were not changed to the last version
of this set. Patch 1/7 is new because it was forgotten in the last post.

Thanks,

	Joerg

Diffstat:

 arch/x86/kvm/svm.c |  259 +++++++++++++++++++++++++++++++++++++++-------------
 1 files changed, 195 insertions(+), 64 deletions(-)

Shortlog:

Joerg Roedel (7):
      KVM: SVM: Return correct values in nested_svm_exit_handled_msr
      KVM: SVM: Move msrpm offset calculation to seperate function
      KVM: SVM: Introduce direct access msr list
      KVM: SVM: Optimize nested svm msrpm merging
      KVM: SVM: Use svm_msrpm_offset in nested_svm_exit_handled_msr
      KVM; SVM: Add correct handling of nested iopm
      KVM: SVM: Ignore lower 12 bit of nested msrpm_pa