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Eric Auger 5c08600547 vfio: Use a trace point when a RAM section cannot be DMA mapped 
Commit 567b5b309a ("vfio/pci: Relax DMA map errors for MMIO regions")
added an error message if a passed memory section address or size
is not aligned to the page size and thus cannot be DMA mapped.

This patch fixes the trace by printing the region name and the
memory region section offset within the address space (instead of
offset_within_region).

We also turn the error_report into a trace event. Indeed, In some
cases, the traces can be confusing to non expert end-users and
let think the use case does not work (whereas it works as before).

This is the case where a BAR is successively mapped at different
GPAs and its sections are not compatible with dma map. The listener
is called several times and traces are issued for each intermediate
mapping.  The end-user cannot easily match those GPAs against the
final GPA output by lscpi. So let's keep those information to
informed users. In mid term, the plan is to advise the user about
BAR relocation relevance.

Fixes: 567b5b309a ("vfio/pci: Relax DMA map errors for MMIO regions")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-04-05 10:48:52 -06:00
..
9pfs 9p: fix leak in synth_name_to_path() 2018-02-19 18:27:32 +01:00
acpi virt_arm: acpi: reuse common build_fadt() 2018-03-13 23:09:50 +02:00
adc Include qapi/error.h exactly where needed 2018-02-09 13:50:17 +01:00
alpha hw/alpha/dp264: Use the TYPE_SMC37C669_SUPERIO 2018-03-12 16:12:49 +01:00
arm mach-virt: Set VM's SMBIOS system version to mc->name 2018-03-23 18:26:46 +00:00
audio hw/audio: Fix crashes when devices are used on ISA bus without DMA 2018-03-26 14:37:13 +02:00
block fdc: Exit if ISA controller does not support DMA 2018-03-26 14:37:13 +02:00
bt hw/bt: Replace fprintf(stderr, "*\n" with error_report() 2018-01-22 09:51:00 +01:00
char i.MX: Support serial RS-232 break properly 2018-03-23 18:26:45 +00:00
core Use cpu_create(type) instead of cpu_init(cpu_model) 2018-03-19 14:10:36 -03:00
cpu hw: use "qemu/osdep.h" as first #include in source files 2017-12-18 17:07:02 +03:00
cris cris: use generic cpu_model parsing 2017-10-27 16:03:54 +02:00
display secondary-vga: properly close QemuConsole on unplug 2018-03-13 11:17:29 -06:00
dma hw/dma/i8257: Rename DMA_init() to i8257_dma_init() 2018-03-12 16:12:48 +01:00
gpio Replace all occurances of __FUNCTION__ with __func__ 2018-01-22 09:46:18 +01:00
hppa hw/hppa: Use qemu_log_mask instead of fprintf to stderr 2018-02-04 14:11:03 -08:00
i2c hw/i2c-ddc: Do not fail writes 2018-03-01 11:05:45 +00:00
i386 multiboot: Check validity of mh_header_addr 2018-03-21 15:13:25 +01:00
ide macio: fix NULL pointer dereference when issuing IDE trim 2018-03-27 00:38:00 -04:00
input hw/input/i8042: Extract declarations from i386/pc.h into input/i8042.h 2018-03-12 16:12:48 +01:00
intc hw/intc/arm_gicv3: Fix secure-GIC NS ICC_PMR and ICC_RPR accesses 2018-03-23 18:26:45 +00:00
ipack pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices 2017-10-15 05:54:43 +03:00
ipmi qapi: Empty out qapi-schema.json 2018-03-02 13:45:50 -06:00
isa virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
lm32 hw/lm32: Replace fprintf(stderr, "*\n" with error_report() 2018-02-06 18:29:26 +01:00
m68k m68k: mcf5208: use generic cpu_model parsing 2017-10-27 16:03:54 +02:00
mem qmp: distinguish PC-DIMM and NVDIMM in MemoryDeviceInfoList 2018-03-20 03:34:52 +02:00
microblaze xlnx-zynqmp-pmu: Connect the IPI device to the PMU 2018-01-26 11:09:09 +01:00
mips hw/isa/vt82c686: Add the TYPE_VT82C686B_SUPERIO 2018-03-12 16:12:49 +01:00
misc hw/misc/macio: Mark the macio devices with user_creatable = false 2018-03-18 18:27:23 +11:00
moxie hw/moxie: Replace fprintf(stderr, "*\n" with error_report() 2018-02-06 18:29:26 +01:00
net Miscellaenous bugfixes, including crash fixes from Alexey, Peter M. and 2018-03-26 15:17:25 +01:00
nios2 nios2: 10m50_devboard: replace cpu_model with cpu_type 2018-03-19 14:09:44 -03:00
nvram Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
openrisc hw/openrisc: Replace fprintf(stderr, "*\n" with error_report() 2018-02-06 18:29:26 +01:00
pci virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
pci-bridge virtio,vhost,pci,pc: features, fixes and cleanups 2018-02-13 16:33:31 +00:00
pci-host pci: Add support for Designware IP block 2018-03-09 17:09:43 +00:00
pcmcia
ppc virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
rdma hw/rdma: Fix 32-bit compilation 2018-03-23 18:38:55 +03:00
riscv RISC-V Build Infrastructure 2018-03-07 08:30:28 +13:00
s390x hw/s390x: fix memory leak in s390_init_ipl_dev() 2018-04-03 10:03:38 +02:00
scsi scsi: turn "is this a SCSI device?" into a conditional hint 2018-03-26 14:37:15 +02:00
sd sdhci: fix incorrect use of Error * 2018-03-23 18:26:45 +00:00
sh4 pci: Rename root bus initialization functions for clarity 2017-12-05 19:13:45 +02:00
smbios Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
sparc hw/dma/i8257: Rename DMA_init() to i8257_dma_init() 2018-03-12 16:12:48 +01:00
sparc64 hw/input/i8042: Extract declarations from i386/pc.h into input/i8042.h 2018-03-12 16:12:48 +01:00
ssi xilinx_spips: Use 8 dummy cycles with the QIOR/QIOR4 commands 2018-03-01 11:05:44 +00:00
timer qapi: Empty out qapi-schema.json 2018-03-02 13:45:50 -06:00
tpm tpm: CRB: Enforce locality is requested before processing buffer 2018-03-29 17:41:02 -04:00
tricore hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-03-12 16:12:46 +01:00
unicore32 hw/input/i8042: Extract declarations from i386/pc.h into input/i8042.h 2018-03-12 16:12:48 +01:00
usb usbredir: reorder fields in USBRedirDevice to reduce padding 2018-03-12 11:43:49 +01:00
vfio vfio: Use a trace point when a RAM section cannot be DMA mapped 2018-04-05 10:48:52 -06:00
virtio vhost: Huge page align and merge 2018-03-20 16:40:37 +02:00
watchdog qapi: Empty out qapi-schema.json 2018-03-02 13:45:50 -06:00
xen virtio,vhost,pci,pc: features, fixes and cleanups 2018-02-13 16:33:31 +00:00
xenpv hw/xen*: Replace fprintf(stderr, "*\n" with error_report() 2018-02-06 18:29:46 +01:00
xtensa Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
Makefile.objs hw/rdma: Add wrappers and macros 2018-02-19 13:03:24 +02:00