Anthony Liguori wrote: > [EMAIL PROTECTED] wrote: >> This patchset enables device assignment for KVM hosts for PCI >> devices. It uses the Intel IOMMU by default if available. >> > > This is still broken wrt CPU hotplug. If a new CPU comes online, it > won't have it's ioperm mask set correct and it will crash QEMU. You > need to keep track of the current ioperm settings and whenever a new > VCPU comes online, issue an ioperm. >
Yes, it's not fixed yet. After userspace patches are checked in, I will send out a patch to fix it. Thanks. Regards, Weidong > Regards, > > Anthony Liguori > >> Changes from v9->v10: >> >> - really emove nr_assigned_devices and device_assignment_enabled and >> other cleanups >> >> Changes from v8->v9 in no particular order: >> >> - fixed DEBUG, removed uneeded headers >> - introduce USE_KVM_DEVICE_ASSIGNMENT modeled after KVM_USE_PIT, per >> aliguori's suggestion >> - only call term_printf from the monitor >> - implement markmc's suggestions: don't overflow dev->regions, fix >> disable_iommu bogosity, fix usage and comment with regards to >> -pcidevice format, and some other bits >> >> Changes from v7->v8 in in particular order: >> >> - various formatting fixes, DEBUG cleanups, cast removals, etc. >> - s/strncpy/snprintf/ >> - split initialization in two phases per aliguori's suggestion >> - bail out on errors when we can't limp on >> - do ioperm on every cpu and vcpu (Weidong Han) >> - use pwrite/pread where applicable >> - split r_virtbase into different fields for memory and IO >> - fix destruction of MMIO regions (Disheng Su and Weidong Han) >> >> Changes from v6->v7 in no particular order: >> >> - formatting changes: adhere to qemu style >> - use strncmp, strncpy etc. instead of the insecure ones >> - move from array to linked list >> - change iopl() to ioperm() (Weidong Han) >> - other small changes as suggested during the review of v6. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
