qemu/hw
Alex Williamson 3412d8ec98 vfio/pci: Hide Resizable BAR capability
The resizable BAR capability is currently exposed read-only from the
kernel and we don't yet implement a protocol for virtualizing it to
the VM.  Exposing it to the guest read-only introduces poor behavior
as the guest has no reason to test that a control register write is
accepted by the hardware.  This can lead to cases where the guest OS
assumes the BAR has been resized, but it hasn't.  This has been
observed when assigning AMD Vega GPUs.

Note, this does not preclude future enablement of resizable BARs, but
it's currently incorrect to expose this capability as read-only, so
better to not expose it at all.

Reported-by: James Courtier-Dutton <james.dutton@gmail.com>
Tested-by: James Courtier-Dutton <james.dutton@gmail.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2019-06-13 09:57:36 -06:00
..
9pfs Supply missing header guards 2019-06-12 13:20:21 +02:00
acpi Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
adc Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
alpha Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
arm hw/arm/smmuv3: Fix decoding of ID register range 2019-06-13 15:14:03 +01:00
audio Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
block Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
bt Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
char Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
core hw/core/bus.c: Only the main system bus can have no parent 2019-06-13 15:14:03 +01:00
cpu Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
cris Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
display edid: flip the default to enabled 2019-06-13 09:34:50 +02:00
dma Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
gpio Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
hppa Supply missing header guards 2019-06-12 13:20:21 +02:00
hyperv Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
i2c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
i386 Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
ide Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
input Supply missing header guards 2019-06-12 13:20:21 +02:00
intc ppc patch queue 2019-06-12 2019-06-12 14:43:47 +01:00
ipack Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
ipmi Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
isa Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
lm32 Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
m68k Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
mem Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
microblaze Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
mips Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
misc Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
moxie Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
net Supply missing header guards 2019-06-12 13:20:21 +02:00
nios2 Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
nvram Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
openrisc Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
pci Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
pci-bridge Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
pci-host Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
pcmcia Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
ppc ppc patch queue 2019-06-12 2019-06-12 14:43:47 +01:00
rdma Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
riscv Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
s390x Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
scsi Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
sd Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
semihosting semihosting: split console_out into string and char versions 2019-06-12 17:53:22 +01:00
sh4 Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
smbios Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
sparc Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
sparc64 Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
ssi Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
timer Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
tpm Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
tricore Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
unicore32 target/unicore32: Use env_cpu, env_archcpu 2019-06-10 07:03:42 -07:00
usb Supply missing header guards 2019-06-12 13:20:21 +02:00
vfio vfio/pci: Hide Resizable BAR capability 2019-06-13 09:57:36 -06:00
virtio Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
watchdog Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
xen Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
xenpv xen: Replace few mentions of xend by libxl 2019-01-14 13:45:40 +00:00
xtensa Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
Kconfig semihosting: introduce CONFIG_SEMIHOSTING 2019-05-28 10:28:50 +01:00
Makefile.objs semihosting: move semihosting configuration into its own directory 2019-05-28 10:28:50 +01:00