I believe it might have been master unstable branch. Last commit before my patches was:
commit 19a720b74fde7e859d19f12c66a72e545947a657 Merge: c6a5fc2ac7 367189efae Author: Richard Henderson <richard.hender...@linaro.org> Date: Thu Jun 1 08:30:29 2023 -0700 -Joel On Thu, Jun 22, 2023 at 1:11 PM Bernhard Beschow <shen...@gmail.com> wrote: > > > Am 20. Juni 2023 17:24:33 UTC schrieb Joel Upham <jupham...@gmail.com>: > >These are the Qemu changes needed to support the q35 chipset for xen > >I based the patches from 2017 found on the mailing list here: > > > https://lists.xenproject.org/archives/html/xen-devel/2018-03/msg01176.html > > > >I have been using a version of these patches on Xen 4.16 with Qemu > >version 4.1 for over 6 months. The guest VMs are very stable, and PCIe > >PT is working as was designed (all of the PCIe devices are on the root > >PCIe device). I have successfully passed through GPUs, NICs, etc. I was > >asked by those in the community to attempt to once again upstream the > >patches. I have them working with Seabios and OVMF (patches are needed > >to OVMF which I will be sending to the mailing list). The Qemu patches > >allow for the xenvbd to properly unplug the AHCI SATA device, and all > >xen pv windows drivers work as intended. > > > >I used the original author of the patches to get a majority of this to > work: > >Alexey Gerasimenko. I fixed the patches to be in line with the upstream > >Qemu and Xen versions. Any original issues may still exist; however, I > >am sure in time they can be improved. If the code doesn't exist then they > >can't be actively looked at by the community. > > > >I am not an expert on the Q35 chipset or PCIe technology. This is my > >first patch to this mailing list. > > Patchew was unable to apply this series onto master: > https://patchew.org/QEMU/cover.1687278381.git.jupham...@gmail.com/ What > revision is the series based on? > > Can you rebase? Rebasing this series will probably cause quite some work > since it will simplify here and there, as indicated by Igor and by my > comments in "version zero" of this series. > > Best regards, > Bernhard > > > > > > >Joel Upham (23): > > pc/xen: Xen Q35 support: provide IRQ handling for PCI devices > > pc/q35: Apply PCI bus BSEL property for Xen PCI device hotplug > > q35/acpi/xen: Provide ACPI PCI hotplug interface for Xen on Q35 > > q35/xen: Add Xen platform device support for Q35 > > q35: Fix incorrect values for PCIEXBAR masks > > xen/pt: XenHostPCIDevice: provide functions for PCI Capabilities and > > PCIe Extended Capabilities enumeration > > xen/pt: avoid reading PCIe device type and cap version multiple times > > xen/pt: determine the legacy/PCIe mode for a passed through device > > xen/pt: Xen PCIe passthrough support for Q35: bypass PCIe topology > > check > > xen/pt: add support for PCIe Extended Capabilities and larger config > > space > > xen/pt: handle PCIe Extended Capabilities Next register > > xen/pt: allow to hide PCIe Extended Capabilities > > xen/pt: add Vendor-specific PCIe Extended Capability descriptor and > > sizing > > xen/pt: add fixed-size PCIe Extended Capabilities descriptors > > xen/pt: add AER PCIe Extended Capability descriptor and sizing > > xen/pt: add descriptors and size calculation for > > RCLD/ACS/PMUX/DPA/MCAST/TPH/DPC PCIe Extended Capabilities > > xen/pt: add Resizable BAR PCIe Extended Capability descriptor and > > sizing > > xen/pt: add VC/VC9/MFVC PCIe Extended Capabilities descriptors and > > sizing > > xen/pt: Fake capability id > > xen platform: unplug ahci object > > pc/q35: setup q35 for xen > > qdev-monitor/pt: bypass root device check > > s3 support: enabling s3 with q35 > > > > hw/acpi/ich9.c | 22 +- > > hw/acpi/pcihp.c | 6 +- > > hw/core/machine.c | 19 + > > hw/i386/pc_piix.c | 3 +- > > hw/i386/pc_q35.c | 39 +- > > hw/i386/xen/xen-hvm.c | 7 +- > > hw/i386/xen/xen_platform.c | 19 +- > > hw/isa/lpc_ich9.c | 53 +- > > hw/isa/piix3.c | 2 +- > > hw/pci-host/q35.c | 28 +- > > hw/pci/pci.c | 17 + > > hw/xen/xen-host-pci-device.c | 106 +++- > > hw/xen/xen-host-pci-device.h | 6 +- > > hw/xen/xen_pt.c | 49 +- > > hw/xen/xen_pt.h | 18 +- > > hw/xen/xen_pt_config_init.c | 1103 ++++++++++++++++++++++++++++++--- > > include/hw/acpi/pcihp.h | 2 + > > include/hw/boards.h | 1 + > > include/hw/i386/pc.h | 3 + > > include/hw/pci-host/q35.h | 4 +- > > include/hw/pci/pci.h | 3 + > > include/hw/southbridge/ich9.h | 1 + > > include/hw/xen/xen.h | 4 +- > > qemu-options.hx | 1 + > > softmmu/qdev-monitor.c | 4 +- > > stubs/xen-hw-stub.c | 4 +- > > 26 files changed, 1394 insertions(+), 130 deletions(-) > > >
