src/sys/dev/xen/privcmd, branch main

device_pager: user iterators to free device pages

2024-11-21T21:49:30+00:00

Change cdev_mgtdev_page_free_page to take an iterator, rather than an
object and page, so that removing the page from the object radix tree
can take advantage of locality with iterators. Define a
general-purpose function to free all pages, which can be used in
several places.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D47692

dev_pager: define free_page for mgt devices

2024-08-21T20:48:59+00:00

Callers of cdev_pager_free_page in the kernel always have object->type
== OBJT_MGTDEVICE. Define a function for them to call that skips the
runtime type check in cdev_pager_free.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D46389

sys: Automated cleanup of cdefs and other formatting

2023-11-27T05:24:00+00:00

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+.*\n/
Remove /\n+#include\s+.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+\n#include\s+/
Remove /\n+#include\s+\n#include\s+/
Remove /\n+#include\s+\n#include\s+/

Sponsored by:		Netflix

sys: Remove $FreeBSD$: one-line .c pattern

2023-08-16T17:54:36+00:00

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

xen: bump used interface version

2023-03-09T16:13:17+00:00

This is required for a further change that will make use of a field
that was added in version 0x00040d00.

No functional change expected.

Sponsored by: Citrix Systems R&D

xen: Remove unused devclass arguments to DRIVER_MODULE.

2022-05-06T22:46:58+00:00

xen: plug some of set-but-not-used vars

2021-12-15T13:46:17+00:00

Sponsored by:	Rubicon Communications, LLC ("Netgate")

xen/privcmd: fix MMAP_RESOURCE ioctl to copy out results

2021-11-18T08:46:44+00:00

The current definition for the MMAP_RESOURCE ioctl was wrong as it
didn't copy back the result to the caller. Fix the definition and also
remove the bogus attempt to copy the result in the implementation.

Note such copy back is only needed when querying the size of a
resource.

Sponsored by: Citrix Systems R&D

xen/privcmd: implement the restrict ioctl

2021-01-11T15:33:27+00:00

Use an interface compatible with the Linux one so that the user-space
libraries already using the Linux interface can be used without much
modifications.

This allows an open privcmd instance to limit against which domains it
can act upon.

Sponsored by:	Citrix Systems R&D

xen/privcmd: implement the dm op ioctl

2021-01-11T15:33:27+00:00

Use an interface compatible with the Linux one so that the user-space
libraries already using the Linux interface can be used without much
modifications.

This allows user-space to make use of the dm_op family of hypercalls,
which are used by device models.

Sponsored by:	Citrix Systems R&D