[Xen-devel] [PATCH v4 0/4] 32-bit domU PVH support

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

Initial 32-bit PVH support, dom0 will need more work.

Changes in v4:
* Add xenpmu_op hypercall to pvh_hypercall32_table[] (patch 3)
* Adjust 'is_pvh_domain(currd)' test to match a similar test further in the
  routine (patch 3)

Changes in v3:
* Swapped patches 1 and 2
* Added is_pvh_32bit_domain() macro
* Dropped a few unnecessary tests for 32b mode
* Added error for unsupported modes
* Added changes to switch_native() similar to those in switch_compat()
* Fully declared compat_mmuext_op() in hvm.c

No need to make any additional changes to prevent a PVH guest from switching
execution mode: hvm_set_cr0() doesn't allow PVH guests to turn off paging and
hvm_set_efer() doesn't allow toggling EFER_LME while paging is on.


Boris Ostrovsky (4):
  x86/pvh: Set 32b PVH guest mode in XEN_DOMCTL_set_address_size
  x86/compat: Test both PV and PVH guests for compat mode
  x86/pvh: Handle hypercalls for 32b PVH guests
  libxc/x86/pvh: Allow creation of 32b PVH guests

 tools/libxc/xc_dom_x86.c      | 32 +++++++++++------------
 xen/arch/x86/domain.c         | 33 ++++++++++++++----------
 xen/arch/x86/domctl.c         |  5 ++--
 xen/arch/x86/hvm/hvm.c        | 60 ++++++++++++++++++++++++++++++++++++++-----
 xen/arch/x86/hvm/vmx/vmcs.c   |  2 +-
 xen/arch/x86/hvm/vmx/vmx.c    | 19 ++++++++++++++
 xen/include/asm-x86/domain.h  |  1 +
 xen/include/asm-x86/hvm/hvm.h |  2 ++
 8 files changed, 113 insertions(+), 41 deletions(-)

-- 
1.8.1.4


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