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[Qemu-devel] [PATCH uq/master 0/9] remove event_notifier_get_fd from non
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH uq/master 0/9] remove event_notifier_get_fd from non-KVM code |
Date: |
Thu, 5 Jul 2012 17:16:21 +0200 |
This is part 1 of a three-part series that expands usage of EventNotifier
in QEMU (including AIO and the main loop). I started working on this when
playing with the threaded block layer; the part of that work that I hope
will be in 1.2 is generalizing posix-aio-compat.c to be a generic portable
thread pool + porting AIO to Win32 (part 2). On top of this, discard
can be easily made asynchronous (part 3), which is a prerequisite for
enabling it.
This first part does the necessary changes for porting EventNotifier
to Win32. The Win32 version will not have event_notifier_get_fd,
and thus I want to remove all calls in portable code. Instead, all
functions used in portable code after this series take an EventNotifier;
KVM-specific implementations retrieve the file descriptor internally
(these calls are in hw/ivshmem.c, hw/vhost.c, kvm-all.c).
Patches 1 to 6 cover ivshmem and the memory API, first adding the
required EventNotifier APIs and then using them. Patches 7 to 9 do the
same with KVM ioeventfd and irqfd, refactoring transport-independent
code in the process from virtio-pci to virtio (the two steps are a bit
hard to separate).
Paolo Bonzini (9):
event_notifier: add event_notifier_set
event_notifier: remove event_notifier_test
event_notifier: add event_notifier_init_fd
ivshmem: use EventNotifier and memory API
ivshmem: wrap ivshmem_del_eventfd loops with transaction
memory: pass EventNotifier, not eventfd
event_notifier: add event_notifier_set_handler
virtio: move common ioeventfd handling out of virtio-pci
virtio: move common irqfd handling out of virtio-pci
event_notifier.c | 30 ++++++++++++---------
event_notifier.h | 8 ++++--
exec.c | 8 +++---
hw/ivshmem.c | 67 +++++++++++++++++++++++++++--------------------
hw/vhost.c | 4 +--
hw/virtio-pci.c | 77 ++++++++++--------------------------------------------
hw/virtio.c | 46 ++++++++++++++++++++++++++++++++
hw/virtio.h | 3 +++
hw/xen_pt.c | 2 +-
kvm-all.c | 29 +++++++++++++++-----
kvm-stub.c | 10 +++++++
kvm.h | 2 ++
memory.c | 18 ++++++-------
memory.h | 9 ++++---
xen-all.c | 6 +++--
15 files changed, 186 insertions(+), 133 deletions(-)
--
1.7.10.2
- [Qemu-devel] [PATCH uq/master 0/9] remove event_notifier_get_fd from non-KVM code,
Paolo Bonzini <=
[Qemu-devel] [PATCH uq/master 4/9] ivshmem: use EventNotifier and memory API, Paolo Bonzini, 2012/07/05
[Qemu-devel] [PATCH uq/master 6/9] memory: pass EventNotifier, not eventfd, Paolo Bonzini, 2012/07/05