John Baldwin 1925586e03 Honor the disabled setting for MSI-X interrupts for passthrough devices. ... Add a new ioctl to disable all MSI-X interrupts for a PCI passthrough device and invoke it if a write to the MSI-X capability registers disables MSI-X. This avoids leaving MSI-X interrupts enabled on the host if a guest device driver has disabled them (e.g. as part of detaching a guest device driver). This was found by Chelsio QA when testing that a Linux guest could switch from MSI-X to MSI interrupts when using the cxgb4vf driver. While here, explicitly fail requests to enable MSI on a passthrough device if MSI-X is enabled and vice versa. Reported by: Sony Arpita Das @ Chelsio Reviewed by: grehan, markj MFC after: 2 weeks Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D27212		2020-11-24 23:18:52 +00:00
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Makefile	First pass through library packaging.	2016-02-04 21:16:35 +00:00
Makefile.depend	Update Makefile.depend files	2019-12-11 17:37:53 +00:00
vmmapi.c	Honor the disabled setting for MSI-X interrupts for passthrough devices.	2020-11-24 23:18:52 +00:00
vmmapi.h	Honor the disabled setting for MSI-X interrupts for passthrough devices.	2020-11-24 23:18:52 +00:00
vmmapi_freebsd.c	lib: further adoption of SPDX licensing ID tags.	2017-11-26 02:00:33 +00:00