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authorAlex Williamson <alex.williamson@redhat.com>2018-06-05 08:23:17 -0600
committerAlex Williamson <alex.williamson@redhat.com>2018-06-05 08:28:09 -0600
commit2b1dbd0d7250254e9421bce721cc2ea25b4af894 (patch)
tree6c87213262cef00382fb8b444bce436bf735ca0e /hw/vfio/trace-events
parentc958c51d2e9923d0eb14dfec46920f69bd793cb4 (diff)
vfio/quirks: Enable ioeventfd quirks to be handled by vfio directly
With vfio ioeventfd support, we can program vfio-pci to perform a specified BAR write when an eventfd is triggered. This allows the KVM ioeventfd to be wired directly to vfio-pci, entirely avoiding userspace handling for these events. On the same micro-benchmark where the ioeventfd got us to almost 90% of performance versus disabling the GeForce quirks, this gets us to within 95%. Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'hw/vfio/trace-events')
-rw-r--r--hw/vfio/trace-events2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
index f8f97d1ff9..d2a74952e3 100644
--- a/hw/vfio/trace-events
+++ b/hw/vfio/trace-events
@@ -79,7 +79,7 @@ vfio_quirk_ati_bonaire_reset_done(const char *name) "%s"
vfio_quirk_ati_bonaire_reset(const char *name) "%s"
vfio_ioeventfd_exit(const char *name, uint64_t addr, unsigned size, uint64_t data) "%s+0x%"PRIx64"[%d]:0x%"PRIx64
vfio_ioeventfd_handler(const char *name, uint64_t addr, unsigned size, uint64_t data) "%s+0x%"PRIx64"[%d] -> 0x%"PRIx64
-vfio_ioeventfd_init(const char *name, uint64_t addr, unsigned size, uint64_t data) "%s+0x%"PRIx64"[%d]:0x%"PRIx64
+vfio_ioeventfd_init(const char *name, uint64_t addr, unsigned size, uint64_t data, bool vfio) "%s+0x%"PRIx64"[%d]:0x%"PRIx64" vfio:%d"
vfio_pci_igd_bar4_write(const char *name, uint32_t index, uint32_t data, uint32_t base) "%s [0x%03x] 0x%08x -> 0x%08x"
vfio_pci_igd_bdsm_enabled(const char *name, int size) "%s %dMB"
vfio_pci_igd_opregion_enabled(const char *name) "%s"