From: David Woodhouse <dwmw2@infradead.org>
To: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
"Paul Durrant" <paul@xen.org>,
"Joao Martins" <joao.m.martins@oracle.com>,
"Ankur Arora" <ankur.a.arora@oracle.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Thomas Huth" <thuth@redhat.com>,
"Alex Bennée" <alex.bennee@linaro.org>,
"Juan Quintela" <quintela@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
"Claudio Fontana" <cfontana@suse.de>,
"Julien Grall" <julien@xen.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
armbru@redhat.com
Subject: [PATCH 00/58] Xen HVM support under KVM
Date: Fri, 20 Jan 2023 13:12:45 +0000 [thread overview]
Message-ID: <20230120131343.1441939-1-dwmw2@infradead.org> (raw)
Apologies for the second posting in a week, but I'm away next week and
(I hope!) we're *so* close now. I won't also repost the [RFC] set on top,
but it's still there in the tree at
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv
where you can see we're on the cusp of having an actual XenStore and
thus being able to hook up the PV back end drivers. The full platform
support works in this series with emulated drivers though.
For this, the basic platform support phase, not a lot has really changed
apart from a final few test-induced fixups and review feedback. Although
I have pulled in the PIRQ support which was previously part of the RFC
follow-on set, because I think it's basically ready to go now.
I'd been so focused on exercising soft reset by using kexec, that I hadn't
actually spotted that reboot didn't work. Fixed by making all the soft
reset happen from qemu_reset_devices() and a trivial patch to make SeaBIOS
realise it isn't really under Xen:
https://lore.kernel.org/qemu-devel/feef99dd2e1a5dce004d22baf07d716d6ea1344c.camel@infradead.org
Other coverage testing included booting guests with 'noapic' to test the
legacy PIC support, which resulted in moving the poll for event channel
GSI deassertion. It worked in kvm_arch_handle_exit() for I/OAPIC mode
because the EOI broadcast comes that way. But the generic KVM code
handles normal I/O port access, which includes the PIC, so the guest
would die in an IRQ storm because it never got cleared. I still want to
do that notifier on EOI which would help to clean up the VFIO code too,
but polling works well enough for now.
The PIRQ support allows the guest to redirect emulated GSIs and MSIs to
a Xen event channel. For GSI, we do what Xen does; in gsi_handler() we
set the IRQ on the legacy PIC and then *either* the Xen PIRQ or the
I/OAPIC depending on whether the former wants it.
MSI depends on the weird thing that Xen does where the MSI message
programmed into the device has a vector of zero, and the PIRQ# encoded
in the Destination ID field and the high bits of the address. We snoop
on those MSI table writes even while they're masked, then unmask the MSI
if the matching PIRQ is bound. Tested with VFIO and emulated devices,
MSI and MSI-X, both with and without the direct kernel delivery to event
channels (kvm_xen_has_cap(EVTCHN_2LEVEL)).
v8: https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv-kvm-8
• Instantiate xen pci-platform device automatically.
• Add documentation.
• Rename (newly-added) CONFIG_XENFV_PLATFORM to CONFIG_XEN_EMU. That's
basically what it enables now that the dust is settling on the rest
of the patch set that comes next.
• Shift QMP commands to qapi/misc-target.json, other review feedback.
• Clear upcall vector on soft reset.
• Wire up soft reset to occur on qemu_devices_reset() (e.g. reboot).
• Locking tweaks largely resulting from doing soft reset with the BQL.
• Poll for deassertion of event channel GSI from kvm_arch_post_run()
instead of kvm_arch_handle_exit().
• Add PIRQ support.
v7: https://lore.kernel.org/qemu-devel/20230116215805.1123514-1-dwmw2@infradead.org/
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv-kvm-7
• Trivial review feedback and collected ack/review tags.
• Only call qemu_set_irq() under the BQL, which means doing so from a BH
in some circumstances.
v6: https://lore.kernel.org/qemu-devel/20230110122042.1562155-1-dwmw2@infradead.org/
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv-kvm-6
• Require split irqchip to ensure the GSI handling works correctly.
• Rework monitor commands to be QMP-based.
• Cache vcpu_info hva to avoid MemoryRegion refcount leaks.
• Pull in more Xen headers to allow for later PV backend work.
• Define __XEN_TOOLS__ in hw/xen/xen.h instead of littering C files with
separate definitions of __XEN_INTERFACE_VERSION__.
• Drop debugging hexdump from xenstore processing.
• Minor fixes in event channel backend handling.
• Drop "Refactor xen_be_init()" patch. It turns out we're going to do that
all quite differently, so it's neither necessary nor sufficient.
v5: https://lore.kernel.org/qemu-devel/20221230121235.1282915-1-dwmw2@infradead.org/
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv-kvm-5
• Add backend implementation of event channel support, to parallel the
libxenevtchn API used by existing backend drivers.
• Add basic XenStore ring implementation, test migration and kexec.
• Some kexec/soft reset fixes (clear port pending bits, kernel timer virq).
• Fix race with setting the xen_callback_asserted flag before actually
doing so, which could lead to it being *cleared* again before we even
assert it... and leave it asserted for ever.
v4: https://lore.kernel.org/qemu-devel/20221221010623.1000191-1-dwmw2@infradead.org/
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv-kvm-4
• Add soft reset support near the beginning and thread it through the
rest of the feature enablement.
• Add PV timer support and advertise XENFEAT_safe_hvm_pvclock.
• Add basic grant table mapping and [gs]et_version / query_size support.
• Make xen_platform device build (and work) without CONFIG_XEN.
• Fix Xen HVM mode not to require --xen-attach.
v3: https://lore.kernel.org/qemu-devel/20221216004117.862106-1-dwmw2@infradead.org/
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv-kvm-3
• Switch back to xen-version as KVM accelerator property, other review
feedback and bug fixes.
• Fix Hyper-V coexistence (ick, calling kvm_xen_init() again because
hyperv_enabled() doesn't return the right answer the first time).
• Implement event channel support, including GSI/PCI_INTX callback.
• Implement 32-bit guest support.
v2: https://lore.kernel.org/qemu-devel/20221209095612.689243-1-dwmw2@infradead.org/
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv-kvm-2
• Attempt to implement migration support; every Xen enlightenment is
now recorded either from vmstate_x86_cpu or from a new sysdev device
created for that purpose. And — I believe — correctly restored, in
the right order, on vmload.
• The shared_info page is created as a proper overlay instead of abusing
the underlying guest page. This is important because Windows doesn't
even select a GPA which had RAM behind it beforehand. This will be
extended to handle the grant frames too, in the fullness of time.
• Set vCPU attributes from the correct vCPU thread to avoid deadlocks.
• Carefully copy the entire hypercall argument structure from userspace
instead of assuming that it's contiguous in HVA space.
• Distinguish between "handled but intentionally returns -ENOSYS" and
"no idea what that was" in hypercalls, allowing us to emit a
GUEST_ERROR (actually, shouldn't that change to UNIMP?) on the
latter. Experience shows that to we'll end up having to intentionally
return -ENOSYS to a bunch of weird crap that ancient guests still
attempt to use, including XenServer local hacks that nobody even
remembers what they were (hvmop 0x101, anyone? Some old Windows
PV driver appears to be trying to use it...).
* Drop the '+xen' CPU property and present Xen CPUID instead of KVM
unconditionally when running in Xen mode. Make the Xen CPUID coexist
with Hyper-V CPUID as it should, though.
• Add XEN_EMU and XENFV_MACHINE (the latter to be XEN_EMU||XEN) config
options. Some more work on this, and the incestuous relationships
between the KVM target code and the 'platform' code, is going to be
required but it's probably better to get on with implementing the
real code so we can see those interactions in all their glory,
before losing too much sleep over the details here.
• Drop the GSI-2 hack, and also the patch which made the PCI platform
device have real RAM (which isn't needed now we have overlays, qv).
• Drop the XenState and XenVcpuState from KVMState and CPUArchState
respectively. The Xen-specific fields are natively included in
CPUArchState now though, for migration purposes. And we don't
keep a host pointer to the shared_info or vcpu_info at all any
more. With the kernel doing everything for us, we don't actually
need them.
v1: https://lore.kernel.org/qemu-devel/20221205173137.607044-1-dwmw2@infradead.org/
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv-kvm-1
v0: https://github.com/jpemartins/qemu/commits/xen-shim-rfc (Joao et al.)
Ankur Arora (2):
i386/xen: implement HVMOP_set_evtchn_upcall_vector
i386/xen: implement HVMOP_set_param
David Woodhouse (39):
xen: add CONFIG_XEN_BUS and CONFIG_XEN_EMU options for Xen emulation
xen: Add XEN_DISABLED mode and make it default
i386/kvm: Add xen-version KVM accelerator property and init KVM Xen support
i386/hvm: Set Xen vCPU ID in KVM
i386/xen: Implement SCHEDOP_poll and SCHEDOP_yield
hw/xen: Add xen_overlay device for emulating shared xenheap pages
i386/xen: add pc_machine_kvm_type to initialize XEN_EMULATE mode
i386/xen: manage and save/restore Xen guest long_mode setting
i386/xen: implement XENMEM_add_to_physmap_batch
hw/xen: Add xen_evtchn device for event channel emulation
i386/xen: Add support for Xen event channel delivery to vCPU
hw/xen: Implement EVTCHNOP_status
hw/xen: Implement EVTCHNOP_close
hw/xen: Implement EVTCHNOP_unmask
hw/xen: Implement EVTCHNOP_bind_virq
hw/xen: Implement EVTCHNOP_bind_ipi
hw/xen: Implement EVTCHNOP_send
hw/xen: Implement EVTCHNOP_alloc_unbound
hw/xen: Implement EVTCHNOP_bind_interdomain
hw/xen: Implement EVTCHNOP_bind_vcpu
hw/xen: Implement EVTCHNOP_reset
hw/xen: Support HVM_PARAM_CALLBACK_TYPE_GSI callback
hw/xen: Support HVM_PARAM_CALLBACK_TYPE_PCI_INTX callback
kvm/i386: Add xen-gnttab-max-frames property
hw/xen: Add xen_gnttab device for grant table emulation
hw/xen: Support mapping grant frames
i386/xen: Implement HYPERVISOR_grant_table_op and GNTTABOP_[gs]et_verson
hw/xen: Implement GNTTABOP_query_size
i386/xen: Reserve Xen special pages for console, xenstore rings
hw/xen: Add backend implementation of interdomain event channel support
hw/xen: Add xen_xenstore device for xenstore emulation
hw/xen: Add basic ring handling to xenstore
hw/xen: Automatically add xen-platform PCI device for emulated Xen guests
i386/xen: Document Xen HVM emulation
i386/xen: Implement HYPERVISOR_physdev_op
hw/xen: Implement emulated PIRQ hypercall support
hw/xen: Support GSI mapping to PIRQ
hw/xen: Support MSI mapping to PIRQ
kvm/i386: Add xen-evtchn-max-pirq property
Joao Martins (17):
include: import Xen public headers to include/standard-headers/
i386/kvm: handle Xen HVM cpuid leaves
xen-platform: exclude vfio-pci from the PCI platform unplug
xen-platform: allow its creation with XEN_EMULATE mode
i386/xen: handle guest hypercalls
i386/xen: implement HYPERVISOR_xen_version
i386/xen: implement HYPERVISOR_sched_op, SCHEDOP_shutdown
i386/xen: implement HYPERVISOR_memory_op
i386/xen: implement HYPERVISOR_hvm_op
i386/xen: implement HYPERVISOR_vcpu_op
i386/xen: handle VCPUOP_register_vcpu_info
i386/xen: handle VCPUOP_register_vcpu_time_info
i386/xen: handle VCPUOP_register_runstate_memory_area
i386/xen: implement HYPERVISOR_event_channel_op
i386/xen: add monitor commands to test event injection
i386/xen: handle PV timer hypercalls
i386/xen: handle HVMOP_get_param
accel/kvm/kvm-all.c | 3 +
accel/xen/xen-all.c | 2 +
docs/system/i386/xen.rst | 50 +
docs/system/target-i386.rst | 1 +
hmp-commands.hx | 29 +
hw/Kconfig | 1 +
hw/i386/Kconfig | 5 +
hw/i386/kvm/meson.build | 10 +
hw/i386/kvm/trace-events | 5 +
hw/i386/kvm/trace.h | 1 +
hw/i386/kvm/xen-stubs.c | 27 +
hw/i386/kvm/xen_evtchn.c | 2329 ++++++++++++++++++++
hw/i386/kvm/xen_evtchn.h | 88 +
hw/i386/kvm/xen_gnttab.c | 232 ++
hw/i386/kvm/xen_gnttab.h | 25 +
hw/i386/kvm/xen_overlay.c | 267 +++
hw/i386/kvm/xen_overlay.h | 26 +
hw/i386/kvm/xen_xenstore.c | 465 ++++
hw/i386/kvm/xen_xenstore.h | 20 +
hw/i386/pc.c | 26 +
hw/i386/x86.c | 16 +
hw/i386/xen/meson.build | 5 +-
hw/i386/xen/xen_platform.c | 57 +-
hw/pci/msi.c | 11 +
hw/pci/msix.c | 7 +
hw/pci/pci.c | 17 +
hw/xen/Kconfig | 3 +
include/hw/i386/pc.h | 3 +
include/hw/pci/msi.h | 1 +
include/hw/xen/xen.h | 21 +-
include/monitor/hmp.h | 2 +
include/standard-headers/xen/arch-x86/cpuid.h | 118 +
include/standard-headers/xen/arch-x86/xen-x86_32.h | 194 ++
include/standard-headers/xen/arch-x86/xen-x86_64.h | 241 ++
include/standard-headers/xen/arch-x86/xen.h | 398 ++++
include/standard-headers/xen/event_channel.h | 388 ++++
include/standard-headers/xen/features.h | 143 ++
include/standard-headers/xen/grant_table.h | 686 ++++++
include/standard-headers/xen/hvm/hvm_op.h | 395 ++++
include/standard-headers/xen/hvm/params.h | 318 +++
include/standard-headers/xen/io/blkif.h | 722 ++++++
include/standard-headers/xen/io/console.h | 56 +
include/standard-headers/xen/io/fbif.h | 176 ++
include/standard-headers/xen/io/kbdif.h | 576 +++++
include/standard-headers/xen/io/netif.h | 1102 +++++++++
include/standard-headers/xen/io/protocols.h | 42 +
include/standard-headers/xen/io/ring.h | 495 +++++
include/standard-headers/xen/io/usbif.h | 425 ++++
include/standard-headers/xen/io/xenbus.h | 80 +
include/standard-headers/xen/io/xs_wire.h | 153 ++
include/standard-headers/xen/memory.h | 754 +++++++
include/standard-headers/xen/physdev.h | 383 ++++
include/standard-headers/xen/sched.h | 202 ++
include/standard-headers/xen/trace.h | 341 +++
include/standard-headers/xen/vcpu.h | 248 +++
include/standard-headers/xen/version.h | 113 +
include/standard-headers/xen/xen-compat.h | 46 +
include/standard-headers/xen/xen.h | 1049 +++++++++
include/sysemu/kvm_int.h | 4 +
include/sysemu/kvm_xen.h | 42 +
meson.build | 2 +
qapi/misc-target.json | 116 +
softmmu/globals.c | 2 +-
target/i386/cpu.c | 1 +
target/i386/cpu.h | 19 +
target/i386/kvm/kvm.c | 259 ++-
target/i386/kvm/kvm_i386.h | 2 +
target/i386/kvm/meson.build | 2 +
target/i386/kvm/trace-events | 7 +
target/i386/kvm/xen-compat.h | 70 +
target/i386/kvm/xen-emu.c | 1860 ++++++++++++++++
target/i386/kvm/xen-emu.h | 33 +
target/i386/machine.c | 25 +
73 files changed, 16017 insertions(+), 26 deletions(-)
next reply other threads:[~2023-01-20 13:17 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-20 13:12 David Woodhouse [this message]
2023-01-20 13:12 ` [PATCH v8 01/58] include: import Xen public headers to include/standard-headers/ David Woodhouse
2023-01-20 13:12 ` [PATCH v8 02/58] xen: add CONFIG_XEN_BUS and CONFIG_XEN_EMU options for Xen emulation David Woodhouse
2023-01-20 13:12 ` [PATCH v8 03/58] xen: Add XEN_DISABLED mode and make it default David Woodhouse
2023-01-20 13:12 ` [PATCH v8 04/58] i386/kvm: Add xen-version KVM accelerator property and init KVM Xen support David Woodhouse
2023-01-20 13:12 ` [PATCH v8 05/58] i386/kvm: handle Xen HVM cpuid leaves David Woodhouse
2023-01-20 13:12 ` [PATCH v8 06/58] i386/hvm: Set Xen vCPU ID in KVM David Woodhouse
2023-01-20 13:12 ` [PATCH v8 07/58] xen-platform: exclude vfio-pci from the PCI platform unplug David Woodhouse
2023-01-20 13:12 ` [PATCH v8 08/58] xen-platform: allow its creation with XEN_EMULATE mode David Woodhouse
2023-01-20 13:12 ` [PATCH v8 09/58] i386/xen: handle guest hypercalls David Woodhouse
2023-01-20 13:12 ` [PATCH v8 10/58] i386/xen: implement HYPERVISOR_xen_version David Woodhouse
2023-01-20 13:12 ` [PATCH v8 11/58] i386/xen: implement HYPERVISOR_sched_op, SCHEDOP_shutdown David Woodhouse
2023-01-20 13:12 ` [PATCH v8 12/58] i386/xen: Implement SCHEDOP_poll and SCHEDOP_yield David Woodhouse
2023-01-20 13:12 ` [PATCH v8 13/58] hw/xen: Add xen_overlay device for emulating shared xenheap pages David Woodhouse
2023-01-20 13:12 ` [PATCH v8 14/58] i386/xen: add pc_machine_kvm_type to initialize XEN_EMULATE mode David Woodhouse
2023-01-20 13:13 ` [PATCH v8 15/58] i386/xen: manage and save/restore Xen guest long_mode setting David Woodhouse
2023-01-20 13:13 ` [PATCH v8 16/58] i386/xen: implement HYPERVISOR_memory_op David Woodhouse
2023-01-20 13:13 ` [PATCH v8 17/58] i386/xen: implement XENMEM_add_to_physmap_batch David Woodhouse
2023-01-20 13:13 ` [PATCH v8 18/58] i386/xen: implement HYPERVISOR_hvm_op David Woodhouse
2023-01-20 13:13 ` [PATCH v8 19/58] i386/xen: implement HYPERVISOR_vcpu_op David Woodhouse
2023-01-20 13:13 ` [PATCH v8 20/58] i386/xen: handle VCPUOP_register_vcpu_info David Woodhouse
2023-01-20 13:13 ` [PATCH v8 21/58] i386/xen: handle VCPUOP_register_vcpu_time_info David Woodhouse
2023-01-20 13:13 ` [PATCH v8 22/58] i386/xen: handle VCPUOP_register_runstate_memory_area David Woodhouse
2023-01-20 13:13 ` [PATCH v8 23/58] i386/xen: implement HYPERVISOR_event_channel_op David Woodhouse
2023-01-20 13:13 ` [PATCH v8 24/58] i386/xen: implement HVMOP_set_evtchn_upcall_vector David Woodhouse
2023-01-20 13:13 ` [PATCH v8 25/58] i386/xen: implement HVMOP_set_param David Woodhouse
2023-01-20 13:13 ` [PATCH v8 26/58] hw/xen: Add xen_evtchn device for event channel emulation David Woodhouse
2023-01-27 8:59 ` Paul Durrant
2023-01-20 13:13 ` [PATCH v8 27/58] i386/xen: Add support for Xen event channel delivery to vCPU David Woodhouse
2023-01-20 13:13 ` [PATCH v8 28/58] hw/xen: Implement EVTCHNOP_status David Woodhouse
2023-01-27 9:03 ` Paul Durrant
2023-01-20 13:13 ` [PATCH v8 29/58] hw/xen: Implement EVTCHNOP_close David Woodhouse
2023-01-20 13:13 ` [PATCH v8 30/58] hw/xen: Implement EVTCHNOP_unmask David Woodhouse
2023-01-20 13:13 ` [PATCH v8 31/58] hw/xen: Implement EVTCHNOP_bind_virq David Woodhouse
2023-01-20 13:13 ` [PATCH v8 32/58] hw/xen: Implement EVTCHNOP_bind_ipi David Woodhouse
2023-01-20 13:13 ` [PATCH v8 33/58] hw/xen: Implement EVTCHNOP_send David Woodhouse
2023-01-20 13:13 ` [PATCH v8 34/58] hw/xen: Implement EVTCHNOP_alloc_unbound David Woodhouse
2023-01-20 13:13 ` [PATCH v8 35/58] hw/xen: Implement EVTCHNOP_bind_interdomain David Woodhouse
2023-01-20 13:13 ` [PATCH v8 36/58] hw/xen: Implement EVTCHNOP_bind_vcpu David Woodhouse
2023-01-20 13:13 ` [PATCH v8 37/58] hw/xen: Implement EVTCHNOP_reset David Woodhouse
2023-01-20 13:13 ` [PATCH v8 38/58] i386/xen: add monitor commands to test event injection David Woodhouse
2023-01-20 13:13 ` [PATCH v8 39/58] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_GSI callback David Woodhouse
2023-01-20 13:13 ` [PATCH v8 40/58] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_PCI_INTX callback David Woodhouse
2023-01-20 13:13 ` [PATCH v8 41/58] kvm/i386: Add xen-gnttab-max-frames property David Woodhouse
2023-01-20 13:13 ` [PATCH v8 42/58] hw/xen: Add xen_gnttab device for grant table emulation David Woodhouse
2023-01-20 13:13 ` [PATCH v8 43/58] hw/xen: Support mapping grant frames David Woodhouse
2023-01-20 13:13 ` [PATCH v8 44/58] i386/xen: Implement HYPERVISOR_grant_table_op and GNTTABOP_[gs]et_verson David Woodhouse
2023-01-20 13:13 ` [PATCH v8 45/58] hw/xen: Implement GNTTABOP_query_size David Woodhouse
2023-01-20 13:13 ` [PATCH v8 46/58] i386/xen: handle PV timer hypercalls David Woodhouse
2023-01-20 13:13 ` [PATCH v8 47/58] i386/xen: Reserve Xen special pages for console, xenstore rings David Woodhouse
2023-01-20 13:13 ` [PATCH v8 48/58] i386/xen: handle HVMOP_get_param David Woodhouse
2023-01-20 13:13 ` [PATCH v8 49/58] hw/xen: Add backend implementation of interdomain event channel support David Woodhouse
2023-01-20 13:13 ` [PATCH v8 50/58] hw/xen: Add xen_xenstore device for xenstore emulation David Woodhouse
2023-01-20 13:13 ` [PATCH v8 51/58] hw/xen: Add basic ring handling to xenstore David Woodhouse
2023-01-20 13:13 ` [PATCH v8 52/58] hw/xen: Automatically add xen-platform PCI device for emulated Xen guests David Woodhouse
2023-01-20 13:13 ` [PATCH v8 53/58] i386/xen: Document Xen HVM emulation David Woodhouse
2023-01-20 13:13 ` [PATCH v8 54/58] i386/xen: Implement HYPERVISOR_physdev_op David Woodhouse
2023-01-20 13:13 ` [PATCH v8 55/58] hw/xen: Implement emulated PIRQ hypercall support David Woodhouse
2023-01-20 13:13 ` [PATCH v8 56/58] hw/xen: Support GSI mapping to PIRQ David Woodhouse
2023-01-20 13:13 ` [PATCH v8 57/58] hw/xen: Support MSI " David Woodhouse
2023-01-20 13:13 ` [PATCH v8 58/58] kvm/i386: Add xen-evtchn-max-pirq property David Woodhouse
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