qemu/hw/vfio
Kunkun Jiang e4b3470838 vfio/common: Add a trace point when a MMIO RAM section cannot be mapped
The MSI-X structures of some devices and other non-MSI-X structures
may be in the same BAR. They may share one host page, especially in
the case of large page granularity, such as 64K.

For example, MSIX-Table size of 82599 NIC is 0x30 and the offset in
Bar 3(size 64KB) is 0x0. vfio_listener_region_add() will be called
to map the remaining range (0x30-0xffff). If host page size is 64KB,
it will return early at 'int128_ge((int128_make64(iova), llend))'
without any message. Let's add a trace point to inform users like commit
5c08600547 ("vfio: Use a trace point when a RAM section cannot be DMA mapped")
did.

Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
Link: https://lore.kernel.org/r/20211027090406.761-3-jiangkunkun@huawei.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2021-11-01 12:17:51 -06:00
..
amd-xgbe.c
ap.c target/s390x: move kvm files into kvm/ 2021-07-07 14:01:59 +02:00
calxeda-xgmac.c
ccw.c vfio-ccw: forward halt/clear errors 2021-09-06 16:22:54 +02:00
common.c vfio/common: Add a trace point when a MMIO RAM section cannot be mapped 2021-11-01 12:17:51 -06:00
display.c Do not include sysemu/sysemu.h if it's not really necessary 2021-05-02 17:24:50 +02:00
igd.c hw/vfio: Fix typo in comments 2021-09-16 11:57:01 +02:00
Kconfig hw/vfio: Move the IGD quirk code to a separate file 2020-02-06 11:55:42 -07:00
meson.build vfio: Add migration region initialization and finalize function 2020-11-01 12:30:50 -07:00
migration.c vfio: Avoid error_propagate() after migrate_add_blocker() 2021-08-26 17:15:28 +02:00
pci-quirks.c hw/vfio: Fix typo in comments 2021-09-16 11:57:01 +02:00
pci.c vfio/pci: Add support for mmapping sub-page MMIO BARs after live migration 2021-11-01 12:17:51 -06:00
pci.h hw/vfio/pci-quirks: Replace the word 'blacklist' 2021-03-16 10:06:44 -06:00
platform.c hw/vfio: Fix typo in comments 2021-09-16 11:57:01 +02:00
spapr.c memory: Name all the memory listeners 2021-09-30 15:30:24 +02:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00