I got access to such a machine and successfully added >32 cards via
hotplug as well as statically in the initial guest xml of libvirt.
I face maybe related issue around "accel/kvm/kvm-all.c:952:
kvm_irqchip_commit_routes: Assertion `ret == 0' failed." now but noting
seems like the old DPC issue.
Closing this bug (and considering to open a new one for the different
issue mentioned above).
** Changed in: qemu (Ubuntu)
Status: New => Invalid
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1771238
Title:
Not able to passthrough > 32 PCIe devices to a KVM Guest
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