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freebsd-skq/usr.sbin/bhyve/acpi.h

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ACPI support for bhyve. The -A option will create the minimal set of required ACPI tables in guest memory. Since ACPI mandates an IOAPIC, the -I option must also be used. Template ASL files are created, and then passed to the iasl compiler to generate AML files. These are then loaded into guest physical mem. In support of this, the ACPI PM timer is implemented, in 32-bit mode. Tested on 7.4/8.*/9.*/10-CURRENT. Reviewed by: neel Obtained from: NetApp Discussed with: jhb (a long while back)
2012-11-20 07:01:26 +00:00
/*-
various: general adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
2017-11-27 15:37:16 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
ACPI support for bhyve. The -A option will create the minimal set of required ACPI tables in guest memory. Since ACPI mandates an IOAPIC, the -I option must also be used. Template ASL files are created, and then passed to the iasl compiler to generate AML files. These are then loaded into guest physical mem. In support of this, the ACPI PM timer is implemented, in 32-bit mode. Tested on 7.4/8.*/9.*/10-CURRENT. Reviewed by: neel Obtained from: NetApp Discussed with: jhb (a long while back)
2012-11-20 07:01:26 +00:00
* Copyright (c) 2012 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.
*
* $FreeBSD$
*/
#ifndef _ACPI_H_
#define _ACPI_H_
Extend the ACPI power management support to wire a virtual power button up to SIGTERM when ACPI is enabled. Sending SIGTERM to the hypervisor when an ACPI-aware OS is running will now trigger a soft-off allowing for a graceful shutdown of the guest. - Move constants for ACPI-related registers to acpi.h. - Implement an SMI_CMD register with commands to enable and disable ACPI. Currently the only change when ACPI is enabled is to enable the virtual power button via SIGTERM. - Implement a fixed-feature power button when ACPI is enabled by asserting PWRBTN_STS in PM1_EVT when SIGTERM is received. - Add support for EVFILT_SIGNAL events to mevent. - Implement support for the ACPI system command interrupt (SCI) and assert it when needed based on the values in PM1_EVT. Mark the SCI as active-low and level triggered in the MADT and MP Table. - Mark PCI interrupts in the MP Table as active-low in addition to level triggered. Reviewed by: neel
2013-12-28 04:01:05 +00:00
#define SCI_INT 9
#define SMI_CMD 0xb2
#define BHYVE_ACPI_ENABLE 0xa0
#define BHYVE_ACPI_DISABLE 0xa1
#define PM1A_EVT_ADDR 0x400
#define PM1A_CNT_ADDR 0x404
#define IO_PMTMR 0x408 /* 4-byte i/o port for the timer */
bhyve(8): Add VM Generation Counter ACPI device Add an implementatation of the 'Virtual Machine Generation ID' spec to Bhyve. The spec provides a randomly generated GUID (at bhyve start) in device memory, along with an ACPI device with _CID VM_Gen_Counter and ADDR evaluating to a Package pointing at that GUID. A GPE is defined which Notifies the ACPI Device when the generation changes (such as when a snapshot is rolled back). At this time, Bhyve does not support snapshotting, so the GPE is never actually raised. Suggested by: rpokala Discussed with: grehan Differential Revision: https://reviews.freebsd.org/D23165
2020-04-15 02:00:17 +00:00
#define IO_GPE0_BLK 0x40c /* 2x 1-byte IO port for GPE0_STS/EN */
#define IO_GPE0_LEN 0x2
#define IO_GPE0_STS IO_GPE0_BLK
#define IO_GPE0_EN (IO_GPE0_BLK + (IO_GPE0_LEN / 2))
/* Allocated GPE bits. */
#define GPE_VMGENC 0
Extend the ACPI power management support to wire a virtual power button up to SIGTERM when ACPI is enabled. Sending SIGTERM to the hypervisor when an ACPI-aware OS is running will now trigger a soft-off allowing for a graceful shutdown of the guest. - Move constants for ACPI-related registers to acpi.h. - Implement an SMI_CMD register with commands to enable and disable ACPI. Currently the only change when ACPI is enabled is to enable the virtual power button via SIGTERM. - Implement a fixed-feature power button when ACPI is enabled by asserting PWRBTN_STS in PM1_EVT when SIGTERM is received. - Add support for EVFILT_SIGNAL events to mevent. - Implement support for the ACPI system command interrupt (SCI) and assert it when needed based on the values in PM1_EVT. Mark the SCI as active-low and level triggered in the MADT and MP Table. - Mark PCI interrupts in the MP Table as active-low in addition to level triggered. Reviewed by: neel
2013-12-28 04:01:05 +00:00
struct vmctx;
Make the virtual ioapic available unconditionally in a bhyve virtual machine. This is in preparation for moving the ioapic device model from userspace to vmm.ko. Reviewed by: grehan
2013-10-31 05:44:45 +00:00
int acpi_build(struct vmctx *ctx, int ncpu);
bhyve(8): Add VM Generation Counter ACPI device Add an implementatation of the 'Virtual Machine Generation ID' spec to Bhyve. The spec provides a randomly generated GUID (at bhyve start) in device memory, along with an ACPI device with _CID VM_Gen_Counter and ADDR evaluating to a Package pointing at that GUID. A GPE is defined which Notifies the ACPI Device when the generation changes (such as when a snapshot is rolled back). At this time, Bhyve does not support snapshotting, so the GPE is never actually raised. Suggested by: rpokala Discussed with: grehan Differential Revision: https://reviews.freebsd.org/D23165
2020-04-15 02:00:17 +00:00
void acpi_raise_gpe(struct vmctx *ctx, unsigned bit);
Rework the DSDT generation code a bit to generate more accurate info about LPC devices. Among other things, the LPC serial ports now appear as ACPI devices. - Move the info for the top-level PCI bus into the PCI emulation code and add ResourceProducer entries for the memory ranges decoded by the bus for memory BARs. - Add a framework to allow each PCI emulation driver to optionally write an entry into the DSDT under the \_SB_.PCI0 namespace. The LPC driver uses this to write a node for the LPC bus (\_SB_.PCI0.ISA). - Add a linker set to allow any LPC devices to write entries into the DSDT below the LPC node. - Move the existing DSDT block for the RTC to the RTC driver. - Add DSDT nodes for the AT PIC, the 8254 ISA timer, and the LPC UART devices. - Add a "SuperIO" device under the LPC node to claim "system resources" aling with a linker set to allow various drivers to add IO or memory ranges that should be claimed as a system resource. - Add system resource entries for the extended RTC IO range, the registers used for ACPI power management, the ELCR, PCI interrupt routing register, and post data register. - Add various helper routines for generating DSDT entries. Reviewed by: neel (earlier version)
2014-01-02 21:26:59 +00:00
void dsdt_line(const char *fmt, ...);
void dsdt_fixed_ioport(uint16_t iobase, uint16_t length);
void dsdt_fixed_irq(uint8_t irq);
void dsdt_fixed_mem32(uint32_t base, uint32_t length);
void dsdt_indent(int levels);
void dsdt_unindent(int levels);
Implement a PCI interrupt router to route PCI legacy INTx interrupts to the legacy 8259A PICs. - Implement an ICH-comptabile PCI interrupt router on the lpc device with 8 steerable pins configured via config space access to byte-wide registers at 0x60-63 and 0x68-6b. - For each configured PCI INTx interrupt, route it to both an I/O APIC pin and a PCI interrupt router pin. When a PCI INTx interrupt is asserted, ensure that both pins are asserted. - Provide an initial routing of PCI interrupt router (PIRQ) pins to 8259A pins (ISA IRQs) and initialize the interrupt line config register for the corresponding PCI function with the ISA IRQ as this matches existing hardware. - Add a global _PIC method for OSPM to select the desired interrupt routing configuration. - Update the _PRT methods for PCI bridges to provide both APIC and legacy PRT tables and return the appropriate table based on the configured routing configuration. Note that if the lpc device is not configured, no routing information is provided. - When the lpc device is enabled, provide ACPI PCI link devices corresponding to each PIRQ pin. - Add a VMM ioctl to adjust the trigger mode (edge vs level) for 8259A pins via the ELCR. - Mark the power management SCI as level triggered. - Don't hardcode the number of elements in Packages in the source for the DSDT. iasl(8) will fill in the actual number of elements, and this makes it simpler to generate a Package with a variable number of elements. Reviewed by: tycho
2014-05-15 14:16:55 +00:00
void sci_init(struct vmctx *ctx);
ACPI support for bhyve. The -A option will create the minimal set of required ACPI tables in guest memory. Since ACPI mandates an IOAPIC, the -I option must also be used. Template ASL files are created, and then passed to the iasl compiler to generate AML files. These are then loaded into guest physical mem. In support of this, the ACPI PM timer is implemented, in 32-bit mode. Tested on 7.4/8.*/9.*/10-CURRENT. Reviewed by: neel Obtained from: NetApp Discussed with: jhb (a long while back)
2012-11-20 07:01:26 +00:00
#endif /* _ACPI_H_ */
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