[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH v2 0/5] Xen INTX/GSI event channel delivery fixes
Fix various breakages with INTX/GSI event channel interrupt delivery, and add a command line option to test it so that it hopefully doesn't get so broken again. Karim attempted to rip this out in 2017 but put it back because it's still necessary with older versions of Xen. This fixes it properly, and makes it easier to test. cf. https://lkml.org/lkml/2017/4/10/266 v2: • Add no_vector_callback to Documentation/admin-guide/kernel-parameters.txt • Further fixes to conditional smp_ops initialisation in xen_hvm_smp_init() David Woodhouse (5): xen: Fix event channel callback via INTX/GSI xen: Set platform PCI device INTX affinity to CPU0 x86/xen: Add a no_vector_callback option to test PCI INTX delivery x86/xen: Don't register Xen IPIs when they aren't going to be used x86/xen: Fix xen_hvm_smp_init() when vector callback not available Documentation/admin-guide/kernel-parameters.txt | 4 ++++ arch/arm/xen/enlighten.c | 2 +- arch/x86/xen/enlighten_hvm.c | 15 ++++++++++++--- arch/x86/xen/smp_hvm.c | 27 +++++++++++++++++---------- drivers/xen/events/events_base.c | 10 ---------- drivers/xen/platform-pci.c | 8 +++++++- drivers/xen/xenbus/xenbus.h | 1 + drivers/xen/xenbus/xenbus_comms.c | 8 -------- drivers/xen/xenbus/xenbus_probe.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------- include/xen/xenbus.h | 2 +- 10 files changed, 97 insertions(+), 48 deletions(-)
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