qemu-e2k/include/hw
David Woodhouse f80fad16af hw/xen: Pass grant ref to gnttab unmap operation
The previous commit introduced redirectable gnttab operations fairly
much like-for-like, with the exception of the extra arguments to the
->open() call which were always NULL/0 anyway.

This *changes* the arguments to the ->unmap() operation to include the
original ref# that was mapped. Under real Xen it isn't necessary; all we
need to do from QEMU is munmap(), then the kernel will release the grant,
and Xen does the tracking/refcounting for the guest.

When we have emulated grant tables though, we need to do all that for
ourselves. So let's have the back ends keep track of what they mapped
and pass it in to the ->unmap() method for us.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-07 17:04:30 +00:00
..
acpi
adc
arm
audio
block
char
core
cpu
cris
cxl
display
dma
firmware
gpio
hyperv
i2c
i386
ide
input
intc
ipack
ipmi
isa
kvm
loongarch
m68k
mem
mips
misc
net
nubus
nvram
openrisc
pci
pci-bridge
pci-host
ppc
rdma
remote
riscv
rtc
rx
s390x
scsi
sd
sensor
sh4
southbridge
sparc
ssi
timer
tricore
usb
vfio
virtio
watchdog
xen hw/xen: Pass grant ref to gnttab unmap operation 2023-03-07 17:04:30 +00:00
xtensa
boards.h
clock.h
elf_ops.h
fw-path-provider.h
hotplug.h
hw.h
ide.h
irq.h
loader-fit.h
loader.h
nmi.h
or-irq.h
pcmcia.h
platform-bus.h
ptimer.h
qdev-clock.h
qdev-core.h
qdev-dma.h
qdev-properties-system.h
qdev-properties.h
register.h
registerfields.h
resettable.h
stream.h
sysbus.h
usb.h
vmstate-if.h