Re: [QEMU][PATCH v3 0/7] Xen: support grant mappings.

[Manos Pitsidianakis <manos.pitsidianakis@linaro.org>]

Hello Vikram,

Series doesn't apply on master. Can you rebase and also provide a 
base-commit with --base=<COMMIT_SHA> when you use git-format-patch? This 
will help git rebase if there are any conflicts found locally.

Thanks,

On Wed, 28 Feb 2024 00:34, Vikram Garhwal <vikram.garhwal@amd.com> wrote:
>Hi,
>This patch series add support for grant mappings as a pseudo RAM region for Xen.
>
>Enabling grant mappings patches(first 6) are written by Juergen in 2021.
>
>QEMU Virtio device provides an emulated backends for Virtio frontned devices
>in Xen.
>Please set "iommu_platform=on" option when invoking QEMU. As this will set
>VIRTIO_F_ACCESS_PLATFORM feature which will be used by virtio frontend in Xen
>to know whether backend supports grants or not.
>
>Changelog:
>v2->v3:
>    Drop patch 1/7. This was done because device unplug is an x86-only case.
>    Add missing qemu_mutex_unlock() before return.
>v1->v2:
>    Split patch 2/7 to keep phymem.c changes in a separate.
>    In patch "xen: add map and unmap callbacks for grant" add check for total
>        allowed grant < XEN_MAX_VIRTIO_GRANTS.
>    Fix formatting issues and re-based with master latest.
>
>Regards,
>Vikram
>
>Juergen Gross (5):
>  xen: add pseudo RAM region for grant mappings
>  softmmu: let qemu_map_ram_ptr() use qemu_ram_ptr_length()
>  xen: let xen_ram_addr_from_mapcache() return -1 in case of not found
>    entry
>  memory: add MemoryRegion map and unmap callbacks
>  xen: add map and unmap callbacks for grant region
>
>Vikram Garhwal (2):
>  softmmu: physmem: Split ram_block_add()
>  hw: arm: Add grant mapping.
>
> hw/arm/xen_arm.c                |   3 +
> hw/i386/xen/xen-hvm.c           |   3 +
> hw/xen/xen-hvm-common.c         |   4 +-
> hw/xen/xen-mapcache.c           | 214 ++++++++++++++++++++++++++++++--
> include/exec/memory.h           |  21 ++++
> include/exec/ram_addr.h         |   1 +
> include/hw/xen/xen-hvm-common.h |   2 +
> include/hw/xen/xen_pvdev.h      |   3 +
> include/sysemu/xen-mapcache.h   |   3 +
> system/physmem.c                | 179 +++++++++++++++-----------
> 10 files changed, 351 insertions(+), 82 deletions(-)
>
>-- 
>2.17.1
>
>