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freebsd-skq/sys/amd64/vmm/io/vatpit.h

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Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
/*-
Move the atpit device model from userspace into vmm.ko for better precision and lower latency. Approved by: grehan (co-mentor)
2014-03-25 19:20:34 +00:00
* Copyright (c) 2014 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
* Copyright (c) 2011 NetApp, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
Move the atpit device model from userspace into vmm.ko for better precision and lower latency. Approved by: grehan (co-mentor)
2014-03-25 19:20:34 +00:00
#ifndef _VATPIT_H_
#define _VATPIT_H_
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
Move the atpit device model from userspace into vmm.ko for better precision and lower latency. Approved by: grehan (co-mentor)
2014-03-25 19:20:34 +00:00
#include <machine/timerreg.h>
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
Add support for reading the PIT Counter 2 output signal via the NMI Status and Control register at port 0x61. Be more conservative about "catching up" callouts that were supposed to fire in the past by skipping an interrupt if it was scheduled too far in the past. Restore the PIT ACPI DSDT entries and add an entry for NMISC too. Approved by: neel (co-mentor)
2014-04-18 00:02:06 +00:00
#define NMISC_PORT 0x61
Move the atpit device model from userspace into vmm.ko for better precision and lower latency. Approved by: grehan (co-mentor)
2014-03-25 19:20:34 +00:00
struct vatpit *vatpit_init(struct vm *vm);
void vatpit_cleanup(struct vatpit *vatpit);
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
Change the type of the first argument to the I/O emulation handlers to 'struct vm *'. Previously it used to be a 'void *' but there is no reason to hide the actual type from the handler. Discussed with: tychon MFC after: 1 week
2014-10-26 19:03:06 +00:00
int vatpit_handler(struct vm *vm, int vcpuid, bool in, int port, int bytes,
Respect the destination operand size of the 'Input from Port' instruction. Approved by: grehan (co-mentor)
2014-04-18 15:22:56 +00:00
uint32_t *eax);
Change the type of the first argument to the I/O emulation handlers to 'struct vm *'. Previously it used to be a 'void *' but there is no reason to hide the actual type from the handler. Discussed with: tychon MFC after: 1 week
2014-10-26 19:03:06 +00:00
int vatpit_nmisc_handler(struct vm *vm, int vcpuid, bool in, int port,
int bytes, uint32_t *eax);
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
Move the atpit device model from userspace into vmm.ko for better precision and lower latency. Approved by: grehan (co-mentor)
2014-03-25 19:20:34 +00:00
#endif /* _VATPIT_H_ */
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