| f80fad16 | 09-Jan-2023 |
David Woodhouse <dwmw@amazon.co.uk> |
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() ca
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>
show more ...
|
| 68ba85ce | 21-Dec-2022 |
Markus Armbruster <armbru@redhat.com> |
coroutine: Split qemu/coroutine-core.h off qemu/coroutine.h
qemu/coroutine.h and qemu/lockable.h include each other.
They need each other only in macro expansions, so we could simply drop
both incl
coroutine: Split qemu/coroutine-core.h off qemu/coroutine.h
qemu/coroutine.h and qemu/lockable.h include each other.
They need each other only in macro expansions, so we could simply drop
both inclusions to break the loop, and add suitable includes to files
that expand the macros.
Instead, move a part of qemu/coroutine.h to new qemu/coroutine-core.h
so that qemu/coroutine-core.h doesn't need qemu/lockable.h, and
qemu/lockable.h only needs qemu/coroutine-core.h. Result:
qemu/coroutine.h includes qemu/lockable.h includes
qemu/coroutine-core.h.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221221131435.3851212-5-armbru@redhat.com>
[Semantic rebase conflict with 7c10cb38cc "accel/tcg: Add debuginfo
support" resolved]
show more ...
|