108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef __XEN_HVM_H__
|
|
#define __XEN_HVM_H__
|
|
|
|
#include <xen/xen-os.h>
|
|
#include <xen/hypervisor.h>
|
|
|
|
#include <contrib/xen/hvm/params.h>
|
|
|
|
/**
|
|
* \brief Wrapper function to obtain a HVM parameter value.
|
|
*
|
|
* \param index HVM parameter index; see <contrib/xen/hvm/params.h>.
|
|
*
|
|
* \returns 0 on failure; the value of the parameter otherwise.
|
|
*/
|
|
static inline unsigned long
|
|
hvm_get_parameter(int index)
|
|
{
|
|
struct xen_hvm_param xhv;
|
|
int error;
|
|
|
|
xhv.domid = DOMID_SELF;
|
|
xhv.index = index;
|
|
error = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
|
|
if (error) {
|
|
printf("%s: error %d trying to get %d\n", __func__,
|
|
error, index);
|
|
return (0);
|
|
}
|
|
return (xhv.value);
|
|
}
|
|
|
|
/** The callback method types for Hypervisor event delivery to our domain. */
|
|
enum {
|
|
HVM_CB_TYPE_GSI,
|
|
HVM_CB_TYPE_PCI_INTX,
|
|
HVM_CB_TYPE_VECTOR,
|
|
HVM_CB_TYPE_MASK = 0xFF,
|
|
HVM_CB_TYPE_SHIFT = 56
|
|
};
|
|
|
|
/** Format for specifying a GSI type callback. */
|
|
enum {
|
|
HVM_CB_GSI_GSI_MASK = 0xFFFFFFFF,
|
|
HVM_CB_GSI_GSI_SHIFT = 0
|
|
};
|
|
#define HVM_CALLBACK_GSI(gsi) \
|
|
(((uint64_t)HVM_CB_TYPE_GSI << HVM_CB_TYPE_SHIFT) \
|
|
| ((gsi) & HVM_CB_GSI_GSI_MASK) << HVM_CB_GSI_GSI_SHIFT)
|
|
|
|
/** Format for specifying a virtual PCI interrupt line GSI style callback. */
|
|
enum {
|
|
HVM_CB_PCI_INTX_INTPIN_MASK = 0x3,
|
|
HVM_CB_PCI_INTX_INTPIN_SHIFT = 0,
|
|
HVM_CB_PCI_INTX_SLOT_MASK = 0x1F,
|
|
HVM_CB_PCI_INTX_SLOT_SHIFT = 11,
|
|
};
|
|
#define HVM_CALLBACK_PCI_INTX(slot, pin) \
|
|
(((uint64_t)HVM_CB_TYPE_PCI_INTX << HVM_CB_TYPE_SHIFT) \
|
|
| (((slot) & HVM_CB_PCI_INTX_SLOT_MASK) << HVM_CB_PCI_INTX_SLOT_SHIFT) \
|
|
| (((pin) & HVM_CB_PCI_INTX_INTPIN_MASK) << HVM_CB_PCI_INTX_INTPIN_SHIFT))
|
|
|
|
/** Format for specifying a direct IDT vector injection style callback. */
|
|
enum {
|
|
HVM_CB_VECTOR_VECTOR_MASK = 0xFFFFFFFF,
|
|
HVM_CB_VECTOR_VECTOR_SHIFT = 0
|
|
};
|
|
#define HVM_CALLBACK_VECTOR(vector) \
|
|
(((uint64_t)HVM_CB_TYPE_VECTOR << HVM_CB_TYPE_SHIFT) \
|
|
| (((vector) & HVM_CB_GSI_GSI_MASK) << HVM_CB_GSI_GSI_SHIFT))
|
|
|
|
enum xen_hvm_init_type {
|
|
XEN_HVM_INIT_EARLY,
|
|
XEN_HVM_INIT_LATE,
|
|
XEN_HVM_INIT_CANCELLED_SUSPEND,
|
|
XEN_HVM_INIT_RESUME,
|
|
};
|
|
|
|
int xen_hvm_init_hypercall_stubs(enum xen_hvm_init_type);
|
|
void xen_hvm_set_callback(device_t);
|
|
void xen_hvm_suspend(void);
|
|
void xen_hvm_resume(bool suspend_cancelled);
|
|
|
|
extern uint32_t hvm_start_flags;
|
|
extern bool xen_evtchn_needs_ack;
|
|
|
|
#endif /* __XEN_HVM_H__ */
|