--- v2
+++ v4
@@ -22,40 +22,59 @@
 reported by CPUID.
 
 This patchset is to enable swiotlb bounce buffer for netvsc/storvsc
-in Isolation VM. Add Hyper-V dma ops and provide dma_alloc/free_
-noncontiguous and vmap/vunmap_noncontiguous callback. Allocate
-rx/tx ring via dma_alloc_noncontiguous() and map them into extra
-address space via dma_vmap_noncontiguous().
+in Isolation VM.
+
+This version follows Michael Kelley suggestion in the following link.
+https://lkml.org/lkml/2021/11/24/2044
+
+Change since v3:
+	* Fix boot up failure on the host with mem_encrypt=on.
+	  Move calloing of set_memory_decrypted() back from
+	  swiotlb_init_io_tlb_mem to swiotlb_late_init_with_tbl()
+	  and rmem_swiotlb_device_init().
+	* Change code style of checking GUEST_MEM attribute in the
+	  hyperv_cc_platform_has().
+	* Add comment in pci-swiotlb-xen.c to explain why add
+	  dependency between hyperv_swiotlb_detect() and pci_
+	  xen_swiotlb_detect().
+	* Return directly when fails to allocate Hyper-V swiotlb
+	  buffer in the hyperv_iommu_swiotlb_init().
+
+Change since v2:
+	* Remove Hyper-V dma ops and dma_alloc/free_noncontiguous. Add
+	  hv_map/unmap_memory() to map/umap netvsc rx/tx ring into extra
+	  address space.
+	* Leave mem->vaddr in swiotlb code with phys_to_virt(mem->start)
+	  when fail to remap swiotlb memory.
 
 Change since v1:
-     * Add Hyper-V Isolation support check in the cc_platform_has()
-       and return true for guest memory encrypt attr.
-     * Remove hv isolation check in the sev_setup_arch()
+	* Add Hyper-V Isolation support check in the cc_platform_has()
+	  and return true for guest memory encrypt attr.
+	* Remove hv isolation check in the sev_setup_arch()
 
-Tianyu Lan (6):
+Tianyu Lan (5):
   Swiotlb: Add Swiotlb bounce buffer remap function for HV IVM
-  dma-mapping: Add vmap/vunmap_noncontiguous() callback in dma ops
   x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has()
   hyperv/IOMMU: Enable swiotlb bounce buffer for Isolation VM
-  net: netvsc: Add Isolation VM support for netvsc driver
   scsi: storvsc: Add Isolation VM support for storvsc driver
+  hv_netvsc: Add Isolation VM support for netvsc driver
 
- arch/x86/kernel/cc_platform.c     |  15 +++
- arch/x86/mm/mem_encrypt.c         |   1 +
- arch/x86/xen/pci-swiotlb-xen.c    |   3 +-
- drivers/hv/Kconfig                |   1 +
- drivers/hv/vmbus_drv.c            |   6 +
- drivers/iommu/hyperv-iommu.c      | 164 +++++++++++++++++++++++++
- drivers/net/hyperv/hyperv_net.h   |   5 +
- drivers/net/hyperv/netvsc.c       | 192 +++++++++++++++++++++++++++---
+ arch/x86/hyperv/ivm.c             |  28 ++++++
+ arch/x86/kernel/cc_platform.c     |  12 +++
+ arch/x86/xen/pci-swiotlb-xen.c    |  12 ++-
+ drivers/hv/hv_common.c            |  11 +++
+ drivers/hv/vmbus_drv.c            |   4 +
+ drivers/iommu/hyperv-iommu.c      |  58 +++++++++++++
+ drivers/net/hyperv/hyperv_net.h   |   5 ++
+ drivers/net/hyperv/netvsc.c       | 136 +++++++++++++++++++++++++++++-
+ drivers/net/hyperv/netvsc_drv.c   |   1 +
  drivers/net/hyperv/rndis_filter.c |   2 +
- drivers/scsi/storvsc_drv.c        |  37 +++---
- include/linux/dma-map-ops.h       |   3 +
- include/linux/hyperv.h            |  17 +++
- include/linux/swiotlb.h           |   6 +
- kernel/dma/mapping.c              |  18 ++-
- kernel/dma/swiotlb.c              |  53 ++++++++-
- 15 files changed, 482 insertions(+), 41 deletions(-)
+ drivers/scsi/storvsc_drv.c        |  37 ++++----
+ include/asm-generic/mshyperv.h    |   2 +
+ include/linux/hyperv.h            |  14 +++
+ include/linux/swiotlb.h           |   6 ++
+ kernel/dma/swiotlb.c              |  43 +++++++++-
+ 15 files changed, 349 insertions(+), 22 deletions(-)
 
 -- 
 2.25.1