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freebsd-dev/sys/x86/include/init.h

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amd64: introduce hook for custom preload metadata parsers Add hooks to amd64 in order to have diverging implementations, since on Xen PV the metadata is passed to the kernel in a different form. Approbed by: gibbs Sponsored by: Citrix Systems R&D amd64/amd64/machdep.c: - Define init_ops for native. - Put native code inside of native_parse_preload_data hook. - Call the parse_preload_data in order to fill the metadata info. x86/include/init.h: - Declare the init_ops struct. x86/xen/pv.c: - Declare xen_init_ops that contains the Xen PV implementation of init_ops. - Implement the parse_preload_data for Xen PVH, the info is fetched from HYPERVISOR_start_info->cmd_line as provided by Xen.
2014-03-11 10:15:25 +00:00
/*-
* Copyright (c) 2013 Roger Pau Monné <roger.pau@citrix.com>
* 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 THE AUTHOR AND CONTRIBUTORS 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 THE AUTHOR 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 __X86_INIT_H__
#define __X86_INIT_H__
/*
* Struct containing pointers to init functions whose
* implementation is run time selectable. Selection can be made,
* for example, based on detection of a BIOS variant or
* hypervisor environment.
*/
struct init_ops {
caddr_t (*parse_preload_data)(u_int64_t);
xen: implement an early timer for Xen PVH When running as a PVH guest, there's no emulated i8254, so we need to use the Xen PV timer as the early source for DELAY. This change allows for different implementations of the early DELAY function and implements a Xen variant for it. Approved by: gibbs Sponsored by: Citrix Systems R&D dev/xen/timer/timer.c: dev/xen/timer/timer.h: - Implement Xen early delay functions using the PV timer and declare them. x86/include/init.h: - Add hooks for early clock source initialization and early delay functions. i386/i386/machdep.c: pc98/pc98/machdep.c: amd64/amd64/machdep.c: - Set early delay hooks to use the i8254 on bare metal. - Use clock_init (that will in turn make use of init_ops) to initialize the early clock source. amd64/include/clock.h: i386/include/clock.h: - Declare i8254_delay and clock_init. i386/xen/clock.c: - Rename DELAY to i8254_delay. x86/isa/clock.c: - Introduce clock_init that will take care of initializing the early clock by making use of the init_ops hooks. - Move non ISA related delay functions to the newly introduced delay file. x86/x86/delay.c: - Add moved delay related functions. - Implement generic DELAY function that will use the init_ops hooks. x86/xen/pv.c: - Set PVH hooks for the early delay related functions in init_ops. conf/files.amd64: conf/files.i386: conf/files.pc98: - Add delay.c to the kernel build.
2014-03-11 10:20:42 +00:00
void (*early_clock_source_init)(void);
void (*early_delay)(int);
xen: implement hook to fetch and parse e820 memory map e820 memory map is fetched using a hypercall under Xen PVH, so add a hook to init_ops in oder to diverge from bare metal and implement a Xen variant. Approved by: gibbs Sponsored by: Citrix Systems R&D x86/include/init.h: - Add a parse_memmap hook to init_ops, that will be called to fetch and parse the memory map. amd64/amd64/machdep.c: - Decouple the fetch and the parse of the memmap, so the parse function can be shared with Xen code. - Move code around in order to implement the parse_memmap hook. amd64/include/pc/bios.h: - Declare bios_add_smap_entries (implemented in machdep.c). x86/xen/pv.c: - Implement fetching of e820 memmap when running as a PVH guest by using the XENMEM_memory_map hypercall.
2014-03-11 10:23:03 +00:00
void (*parse_memmap)(caddr_t, vm_paddr_t *, int *);
xen: add hook for AP bootstrap memory reservation This hook will only be implemented for bare metal, Xen doesn't require any bootstrap code since APs are started in long mode with paging enabled. Approved by: gibbs Sponsored by: Citrix Systems R&D amd64/amd64/machdep.c: - Set mp_bootaddress hook for bare metal. x86/include/init.h: - Define mp_bootaddress in init_ops.
2014-03-11 10:26:16 +00:00
u_int (*mp_bootaddress)(u_int);
xen: add a hook to perform AP startup AP startup on PVH follows the PV method, so we need to add a hook in order to diverge from bare metal. Approved by: gibbs Sponsored by: Citrix Systems R&D amd64/amd64/machdep.c: - Add hook for start_all_aps on native (using native_start_all_aps defined in mp_machdep). amd64/amd64/mp_machdep.c: - Make some variables global because they will also be used by the Xen PVH AP startup code. - Use the start_all_aps hook to start APs. - Rename start_all_aps to native_start_all_aps. amd64/include/smp.h: - Add declaration for native_start_all_aps. x86/include/init.h: - Declare start_all_aps hook in init_ops. x86/xen/pv.c: - Pick external declarations from mp_machdep. - Introduce Xen PV code to start APs on PVH. - Set start_all_aps init hook to use the Xen PVH implementation.
2014-03-11 10:27:57 +00:00
int (*start_all_aps)(void);
msi: add Xen MSI implementation This patch adds support for MSI interrupts when running on Xen. Apart from adding the Xen related code needed in order to register MSI interrupts this patch also makes the msi_init function a hook in init_ops, so different MSI implementations can have different initialization functions. Sponsored by: Citrix Systems R&D xen/interface/physdev.h: - Add the MAP_PIRQ_TYPE_MULTI_MSI to map multi-vector MSI to the Xen public interface. x86/include/init.h: - Add a hook for setting custom msi_init methods. amd64/amd64/machdep.c: i386/i386/machdep.c: - Set the default msi_init hook to point to the native MSI initialization method. x86/xen/pv.c: - Set the Xen MSI init hook when running as a Xen guest. x86/x86/local_apic.c: - Call the msi_init hook instead of directly calling msi_init. xen/xen_intr.h: x86/xen/xen_intr.c: - Introduce support for registering/releasing MSI interrupts with Xen. - The MSI interrupts will use the same PIC as the IO APIC interrupts. xen/xen_msi.h: x86/xen/xen_msi.c: - Introduce a Xen MSI implementation. x86/xen/xen_nexus.c: - Overwrite the default MSI hooks in the Xen Nexus to use the Xen MSI implementation. x86/xen/xen_pci.c: - Introduce a Xen specific PCI bus that inherits from the ACPI PCI bus and overwrites the native MSI methods. - This is needed because when running under Xen the MSI messages used to configure MSI interrupts on PCI devices are written by Xen itself. dev/acpica/acpi_pci.c: - Lower the quality of the ACPI PCI bus so the newly introduced Xen PCI bus can take over when needed. conf/files.i386: conf/files.amd64: - Add the newly created files to the build process.
2014-09-30 16:46:45 +00:00
void (*msi_init)(void);
amd64: introduce hook for custom preload metadata parsers Add hooks to amd64 in order to have diverging implementations, since on Xen PV the metadata is passed to the kernel in a different form. Approbed by: gibbs Sponsored by: Citrix Systems R&D amd64/amd64/machdep.c: - Define init_ops for native. - Put native code inside of native_parse_preload_data hook. - Call the parse_preload_data in order to fill the metadata info. x86/include/init.h: - Declare the init_ops struct. x86/xen/pv.c: - Declare xen_init_ops that contains the Xen PV implementation of init_ops. - Implement the parse_preload_data for Xen PVH, the info is fetched from HYPERVISOR_start_info->cmd_line as provided by Xen.
2014-03-11 10:15:25 +00:00
};
extern struct init_ops init_ops;
xen: add ACPI bus to xen_nexus when running as Dom0 Also disable a couple of ACPI devices that are not usable under Dom0. To this end a couple of booleans are added that allow disabling ACPI specific devices. Sponsored by: Citrix Systems R&D Reviewed by: jhb x86/xen/xen_nexus.c: - Return BUS_PROBE_SPECIFIC in the Xen Nexus attachement routine to force the usage of the Xen Nexus. - Attach the ACPI bus when running as Dom0. dev/acpica/acpi_cpu.c: dev/acpica/acpi_hpet.c: dev/acpica/acpi_timer.c - Add a variable that gates the addition of the devices. x86/include/init.h: - Declare variables that control the attachment of ACPI cpu, hpet and timer devices.
2014-08-04 09:05:28 +00:00
/* Knob to disable acpi_cpu devices */
extern bool acpi_cpu_disabled;
/* Knob to disable acpi_hpet device */
extern bool acpi_hpet_disabled;
/* Knob to disable acpi_timer device */
extern bool acpi_timer_disabled;
amd64: introduce hook for custom preload metadata parsers Add hooks to amd64 in order to have diverging implementations, since on Xen PV the metadata is passed to the kernel in a different form. Approbed by: gibbs Sponsored by: Citrix Systems R&D amd64/amd64/machdep.c: - Define init_ops for native. - Put native code inside of native_parse_preload_data hook. - Call the parse_preload_data in order to fill the metadata info. x86/include/init.h: - Declare the init_ops struct. x86/xen/pv.c: - Declare xen_init_ops that contains the Xen PV implementation of init_ops. - Implement the parse_preload_data for Xen PVH, the info is fetched from HYPERVISOR_start_info->cmd_line as provided by Xen.
2014-03-11 10:15:25 +00:00
#endif /* __X86_INIT_H__ */
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