a8f2f559f3
Switch the initialization of gnttab to use an unused physical memory range for both PVHVM and PVH. In the past PVHVM was using the xenpci BAR, but there's no reason to do that, and in fact FreeBSD was probably doing it because it was the way it was done in Windows, were drivers cannot probably request for unused physical memory ranges, but it was never enforced in the hypervisor. Sponsored by: Citrix Systems R&D Approved by: gibbs xen/gnttab.c: - Allocate contiguous physical memory for grant table frames for both PVHVM and PVH. - Since gnttab is not a device, use the xenpv device in order to request for this allocation. dev/xen/xenpci/xenpcivar.h: dev/xen/xenpci/xenpci.c: - Remove the now unused xenpci_alloc_space and xenpci_alloc_space_int functions. xen/gnttab.h: - Change the prototype of gnttab_init and gnttab_resume, that now takes a device_t parameter. dev/xen/control/control.c: x86/xen/xenpv.c: - Changes to accomodate the new prototype of gnttab_init and gnttab_resume.
38 lines
1.5 KiB
C
38 lines
1.5 KiB
C
/*
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* Copyright (c) 2008 Citrix Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* One of these per allocated device.
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*/
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struct xenpci_softc {
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int rid_ioport;
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int rid_irq;
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struct resource* res_irq; /* Resource for irq range. */
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void *intr_cookie;
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};
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