NAK: [Pull Request][kinetic/linux-azure] Azure: Add PCI pass thru to CVMs

[Tim Gardner]

On 5/8/23 12:14 PM, Tim Gardner wrote:
> BugLink: https://bugs.launchpad.net/bugs/2015369
> 
> SRU Justification
> 
> [Impact]
> 
> Microsoft has requested the inclusion of this patch set:
> 
> https://lore.kernel.org/linux-hyperv/1679838727-87310-1-git-send-email-mikelley@microsoft.com/T/
> 
> [Regression Potential]
> 
> Private memory mappings could be incorrect.
> 
> [Test Plan]
> 
> Microsoft tested with success.
> 
> [Other Info]
> 
> SF: #00355859
> 
> ----------------------------------------------------------------------------
> The following changes since commit 
> a70f4dfe3bda868700187ab3073a566fa9a4135b:
> 
>    UBUNTU: Ubuntu-azure-5.19.0-1026.29 (2023-04-24 07:35:21 -0600)
> 
> are available in the Git repository at:
> 
>    git://git.launchpad.net/~timg-tpi/ubuntu/+source/linux/+git/kinetic 
> kinetic-azure-Add-PCI-pass-thru-to-cvm-lp2015369
> 
> for you to fetch changes up to 8fda1bef5c074a262be35d7205c5eae9f4410d33:
> 
>    PCI: hv: Replace retarget_msi_interrupt_params with 
> hyperv_pcpu_input_arg (2023-05-08 11:43:56 -0600)
> 
> ----------------------------------------------------------------
> Dexuan Cui (5):
>        UBUNTU: SAUCE: Drivers: hv: vmbus: Revert Dexuan's changes to 
> hv_ringbuffer_init()
>        UBUNTU: SAUCE: Drivers: hv: vmbus: Hardcode MMIO resources in 
> vmbus_walk_resources() when necessary
>        UBUNTU: SAUCE: x86/hyperv: Support hypercalls for TDX guests 
> (part 2)
>        Drivers: hv: vmbus: Remove the per-CPU post_msg_page
>        PCI: hv: Replace retarget_msi_interrupt_params with 
> hyperv_pcpu_input_arg
> 
> Jinank Jain (4):
>        x86/hyperv: Add support for detecting nested hypervisor
>        Drivers: hv: Setup synic registers in case of nested root partition
>        x86/hyperv: Add an interface to do nested hypercalls
>        Drivers: hv: Enable vmbus driver for nested root partition
> 
> Michael Kelley (13):
>        x86/ioremap: Add hypervisor callback for private MMIO mapping in 
> coco VM
>        x86/hyperv: Reorder code to facilitate future work
>        Drivers: hv: Explicitly request decrypted in vmap_pfn() calls
>        x86/mm: Handle decryption/re-encryption of bss_decrypted 
> consistently
>        init: Call mem_encrypt_init() after Hyper-V hypercall init is done
>        x86/hyperv: Change vTOM handling to use standard coco mechanisms
>        UBUNTU: SAUCE: swiotlb: Remove bounce buffer remapping for Hyper-V
>        UBUNTU: SAUCE: Drivers: hv: vmbus: Remove second mapping of VMBus 
> monitor pages
>        Drivers: hv: vmbus: Remove second way of mapping ring buffers
>        hv_netvsc: Remove second mapping of send and recv buffers
>        x86/hyperv: Block root partition functionality in a Confidential VM
>        Drivers: hv: Don't remap addresses that are above 
> shared_gpa_boundary
>        PCI: hv: Enable PCI pass-thru devices in Confidential VMs
> 
>   arch/x86/coco/core.c                |  40 ++++++++++++++++++------
>   arch/x86/hyperv/hv_init.c           |  21 +++----------
>   arch/x86/hyperv/ivm.c               | 153 
> ++++++++++++++++++++++++++++++++++++++++++++++++++-----------------------------------------
>   arch/x86/include/asm/coco.h         |   1 -
>   arch/x86/include/asm/hyperv-tlfs.h  |  20 +++++++++++-
>   arch/x86/include/asm/mem_encrypt.h  |   1 +
>   arch/x86/include/asm/mshyperv.h     |  88 
> ++++++++++++++++++++++++++++++++---------------------
>   arch/x86/include/asm/x86_init.h     |   4 +++
>   arch/x86/kernel/apic/io_apic.c      |  10 ++++--
>   arch/x86/kernel/cpu/mshyperv.c      | 110 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++--------------
>   arch/x86/kernel/x86_init.c          |   2 ++
>   arch/x86/mm/ioremap.c               |   5 +++
>   arch/x86/mm/mem_encrypt_amd.c       |  10 ++++--
>   arch/x86/mm/pat/set_memory.c        |   3 --
>   drivers/hv/Kconfig                  |   1 -
>   drivers/hv/channel_mgmt.c           |   2 +-
>   drivers/hv/connection.c             | 115 
> +++++++++++++++++----------------------------------------------------
>   drivers/hv/hv.c                     |  76 
> ++++++++++++++++++----------------------------
>   drivers/hv/hv_common.c              |  44 ++++++++++++++++++---------
>   drivers/hv/hyperv_vmbus.h           |   6 ----
>   drivers/hv/ring_buffer.c            |  66 
> ++++++++++++----------------------------
>   drivers/hv/vmbus_drv.c              |  14 +++++++--
>   drivers/net/hyperv/hyperv_net.h     |   2 --
>   drivers/net/hyperv/netvsc.c         |  48 ++---------------------------
>   drivers/pci/controller/pci-hyperv.c | 280 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------------------------------------------------
>   include/asm-generic/hyperv-tlfs.h   |  23 ++++++++++++++
>   include/asm-generic/mshyperv.h      |   5 +--
>   include/linux/swiotlb.h             |   2 --
>   init/main.c                         |  19 +++++++-----
>   kernel/dma/swiotlb.c                |  47 +---------------------------
>   30 files changed, 643 insertions(+), 575 deletions(-)
> 

This pull request has already been submitted
-- 
-----------
Tim Gardner
Canonical, Inc