Mark Johnston df57775d7a hyperv: Fix vmbus after the i386 4/4 split ... The vmbus ISR needs to live in a trampoline. Dynamically allocating a trampoline at driver initialization time poses some difficulties due to the fact that the KENTER macro assumes that the offset relative to tramp_idleptd is fixed at static link time. Another problem is that native_lapic_ipi_alloc() uses setidt(), which assumes a fixed trampoline offset. Rather than fight this, move the Hyper-V ISR to i386/exception.s. Add a new HYPERV kernel option to make this optional, and configure it by default on i386. This is sufficient to make use of vmbus(4) after the 4/4 split. Note that vmbus cannot be loaded dynamically and both the HYPERV option and device must be configured together. I think this is not too onerous a requirement, since vmbus(4) was previously non-functional. Reported by: Harry Schmalzbauer <freebsd@omnilan.de> Tested by: Harry Schmalzbauer <freebsd@omnilan.de> Reviewed by: whu, kib Sponsored by: The FreeBSD Foundation (cherry picked from commit 97993d1ebf)		2021-06-21 21:09:17 -04:00
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amd64
i386	hyperv: Fix vmbus after the i386 4/4 split	2021-06-21 21:09:17 -04:00
hyperv.c
hyperv_busdma.c
hyperv_machdep.h
hyperv_reg.h
hyperv_var.h
vmbus.c	hyperv: register intr handler as usermode-mapped if loaded as module	2021-06-12 19:58:02 +03:00
vmbus_br.c	Fix i386 build for r361275	2020-05-20 13:51:27 +00:00
vmbus_brvar.h	HyperV socket implementation for FreeBSD	2020-05-20 11:03:59 +00:00
vmbus_chan.c	HyperV socket implementation for FreeBSD	2020-05-20 11:03:59 +00:00
vmbus_chanvar.h	HyperV socket implementation for FreeBSD	2020-05-20 11:03:59 +00:00
vmbus_et.c
vmbus_if.m
vmbus_reg.h	HyperV socket implementation for FreeBSD	2020-05-20 11:03:59 +00:00
vmbus_res.c
vmbus_var.h
vmbus_xact.c