freebsd-dev/sys/xen/hypervisor.h

/******************************************************************************
 * hypervisor.h
  * 
 * Linux-specific hypervisor handling.
 * 
 * Copyright (c) 2002, K A Fraser
 *
 * $FreeBSD$
 */

#ifndef __XEN_HYPERVISOR_H__
#define __XEN_HYPERVISOR_H__

#include <sys/cdefs.h>
#include <sys/systm.h>
#include <contrib/xen/xen.h>
#include <contrib/xen/platform.h>
#include <contrib/xen/event_channel.h>
#include <contrib/xen/physdev.h>
#include <contrib/xen/sched.h>
#include <contrib/xen/callback.h>
#include <contrib/xen/memory.h>
#include <contrib/xen/hvm/dm_op.h>
#include <machine/xen/hypercall.h>

static inline int 
HYPERVISOR_console_write(const char *str, int count)
{
    return HYPERVISOR_console_io(CONSOLEIO_write, count, str); 
}

static inline int
HYPERVISOR_yield(void)
{

	return (HYPERVISOR_sched_op(SCHEDOP_yield, NULL));
}

static inline void 
HYPERVISOR_shutdown(unsigned int reason)
{
	struct sched_shutdown sched_shutdown = {
		.reason = reason
	};

	HYPERVISOR_sched_op(SCHEDOP_shutdown, &sched_shutdown);
}

#endif /* __XEN_HYPERVISOR_H__ */
Import xen sub-arch includes. MFC after: 2 weeks 2008-08-12 19:41:11 +00:00			`/******************************************************************************`
			`* hypervisor.h`
			`*`
			`* Linux-specific hypervisor handling.`
			`*`
			`* Copyright (c) 2002, K A Fraser`
merge 186535, 186537, and 186538 from releng_7_xen Log: - merge in latest xenbus from dfr's xenhvm - fix race condition in xs_read_reply by converting tsleep to mtx_sleep Log: unmask evtchn in bind_{virq, ipi}_to_irq Log: - remove code for handling case of not being able to sleep - eliminate tsleep - make sleeps atomic 2008-12-29 06:31:03 +00:00			`*`
			`* $FreeBSD$`
Import xen sub-arch includes. MFC after: 2 weeks 2008-08-12 19:41:11 +00:00			`*/`

Merge in support for Xen HVM on amd64 architecture. 2009-03-11 15:30:12 +00:00			`#ifndef __XEN_HYPERVISOR_H__`
			`#define __XEN_HYPERVISOR_H__`

Import xen sub-arch includes. MFC after: 2 weeks 2008-08-12 19:41:11 +00:00			`#include <sys/cdefs.h>`
			`#include <sys/systm.h>`
xen: switch to use headers in contrib These headers originate with the Xen project and shouldn't be mixed with the main portion of the FreeBSD kernel. Notably they shouldn't be the target of clean-up commits. Switch to use the headers in sys/contrib/xen. Reviewed by: royger 2021-10-13 02:00:26 +00:00			`#include <contrib/xen/xen.h>`
			`#include <contrib/xen/platform.h>`
			`#include <contrib/xen/event_channel.h>`
			`#include <contrib/xen/physdev.h>`
			`#include <contrib/xen/sched.h>`
			`#include <contrib/xen/callback.h>`
			`#include <contrib/xen/memory.h>`
			`#include <contrib/xen/hvm/dm_op.h>`
Import xen sub-arch includes. MFC after: 2 weeks 2008-08-12 19:41:11 +00:00			`#include <machine/xen/hypercall.h>`

			`static inline int`
xen/console: Introduce a new console driver for Xen guest The current Xen console driver is crashing very quickly when using it on an ARM guest. This is because the console lock is recursive and it may lead to recursion on the tty lock and/or corrupt the ring pointer. Furthermore, the console lock is not always taken where it should be and has to be released too early because of the way the console has been designed. Over the years, code has been modified to support various new features but the driver has not been reworked. This new driver has been rewritten with the idea of only having a small set of specific function to write either via the shared ring or the hypercall interface. Note that HVM support has been left aside for now because it requires additional features which are not yet supported. A follow-up patch will be sent with HVM guest support. List of items that may be good to have but not mandatory: - Avoid to flush for each character written when using the tty - Support multiple consoles Submitted by: Julien Grall <julien.grall@citrix.com> Reviewed by: royger Differential Revision: https://reviews.freebsd.org/D3698 Sponsored by: Citrix Systems R&D 2015-10-08 16:39:43 +00:00			`HYPERVISOR_console_write(const char *str, int count)`
Import xen sub-arch includes. MFC after: 2 weeks 2008-08-12 19:41:11 +00:00			`{`
			`return HYPERVISOR_console_io(CONSOLEIO_write, count, str);`
			`}`

			`static inline int`
			`HYPERVISOR_yield(void)`
			`{`

xen: remove CONFIG_XEN_COMPAT, purge Xen 3.0 compatibility This overlaps the purpose of __XEN_INTERFACE_VERSION__. Remove Xen 3.0.2 compatibility. __XEN_INTERFACE_VERSION__ has compatibility to Xen 3.2.8 enabled. As Xen 3.3 was released almost 15 years ago, it seems unlikely anyone hasn't updated. Reviewed by: royger 2022-03-27 22:10:24 +00:00			`return (HYPERVISOR_sched_op(SCHEDOP_yield, NULL));`
Import xen sub-arch includes. MFC after: 2 weeks 2008-08-12 19:41:11 +00:00			`}`

			`static inline void`
			`HYPERVISOR_shutdown(unsigned int reason)`
			`{`
			`struct sched_shutdown sched_shutdown = {`
			`.reason = reason`
			`};`

			`HYPERVISOR_sched_op(SCHEDOP_shutdown, &sched_shutdown);`
			`}`

Merge in support for Xen HVM on amd64 architecture. 2009-03-11 15:30:12 +00:00			`#endif /* __XEN_HYPERVISOR_H__ */`