mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-08-25 19:29:30 +00:00
638d7141d2
This is the counterpart in DM to the VHM request state update in the
hypervisor. Major changes include:
* Remove accesses to the obsolete 'valid' member.
* Access the 'processed' member using atomic operations.
* Sync the documentation on vhm_request.
In addition, the new state transition also requires a VHM request to be always
handled properly, as there is no 'FAILED' state any more. Instead of crashing
the device model (and thus the UOS as well), the device model should return all
1s or ignore the request when it is to load from or store to an invalid address,
respectively.
Note: there is an issue in vm_system_reset() and vm_suspend_resume() where
completed VHM requests are not properly notified, causing the hypervisor to
complain as it sees uncompleted requests while trying to create a new one. This
issue will be resolved in a separate patch.
v1 -> v2:
* Use macro-defined constants for the default values for invalid PIO/MMIO
reads.
* Change the return type of vmexit_handler_t in DM to void as the return
values are no longer necessary.
* Remove VM_EXITCODE that are no longer used.
Tracked-On: #875
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _DM_H_
|
|
#define _DM_H_
|
|
|
|
#include <stdbool.h>
|
|
#include "types.h"
|
|
#include "vmm.h"
|
|
|
|
struct vmctx;
|
|
extern int guest_ncpus;
|
|
extern char *guest_uuid_str;
|
|
extern uint8_t trusty_enabled;
|
|
extern char *vsbl_file_name;
|
|
extern char *vmname;
|
|
extern bool stdio_in_use;
|
|
|
|
int vmexit_task_switch(struct vmctx *ctx, struct vhm_request *vhm_req,
|
|
int *vcpu);
|
|
void *paddr_guest2host(struct vmctx *ctx, uintptr_t addr, size_t len);
|
|
void *dm_gpa2hva(uint64_t gpa, size_t size);
|
|
int virtio_uses_msix(void);
|
|
void ptdev_no_reset(bool enable);
|
|
#endif
|