riscv/qemu: QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org - qemu

QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org

emulation kvm qemu virtualization

History

Leonardo Bras b88651cb4d QIOChannel: Add flags on io_writev and introduce io_flush callback Add flags to io_writev and introduce io_flush as optional callback to QIOChannelClass, allowing the implementation of zero copy writes by subclasses. How to use them: - Write data using qio_channel_writev*(...,QIO_CHANNEL_WRITE_FLAG_ZERO_COPY), - Wait write completion with qio_channel_flush(). Notes: As some zero copy write implementations work asynchronously, it's recommended to keep the write buffer untouched until the return of qio_channel_flush(), to avoid the risk of sending an updated buffer instead of the buffer state during write. As io_flush callback is optional, if a subclass does not implement it, then: - io_flush will return 0 without changing anything. Also, some functions like qio_channel_writev_full_all() were adapted to receive a flag parameter. That allows shared code between zero copy and non-zero copy writev, and also an easier implementation on new flags. Signed-off-by: Leonardo Bras <leobras@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20220513062836.965425-3-leobras@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>		4 years ago
..
meson.build	meson: convert block	6 years ago
pr-helper.h	Normalize header guard symbol definition.	7 years ago
pr-manager-helper.c	QIOChannel: Add flags on io_writev and introduce io_flush callback	4 years ago
pr-manager-stub.c	pr-manager: add query-pr-managers QMP command	8 years ago
pr-manager.c	qapi: Use QAPI_LIST_APPEND in trivial cases	5 years ago
qemu-pr-helper.c	util: replace qemu_get_local_state_pathname()	4 years ago
trace-events	docs: fix references to docs/devel/tracing.rst	5 years ago
trace.h	trace: switch position of headers to what Meson requires	6 years ago
utils.c	scsi: fix sense code for EREMOTEIO	5 years ago