/* $NetBSD: xenio.h,v 1.12 2020/05/26 10:11:56 bouyer Exp $ */ /****************************************************************************** * privcmd.h * * Copyright (c) 2003-2004, K A Fraser * * This file may be distributed separately from the Linux kernel, or * incorporated into other software packages, subject to the following license: * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this source file (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_XENIO_H__ #define __XEN_XENIO_H__ /* Interface to /proc/xen/privcmd */ #include typedef struct privcmd_hypercall { unsigned long op; unsigned long arg[5]; long retval; } privcmd_hypercall_t; typedef struct privcmd_mmap_entry { unsigned long va; unsigned long mfn; unsigned long npages; } privcmd_mmap_entry_t; typedef struct privcmd_mmap { int num; domid_t dom; /* target domain */ privcmd_mmap_entry_t *entry; } privcmd_mmap_t; typedef struct privcmd_mmapbatch { int num; /* number of pages to populate */ domid_t dom; /* target domain */ unsigned long addr; /* virtual address */ unsigned long *arr; /* array of mfns - top nibble set on err */ } privcmd_mmapbatch_t; typedef struct privcmd_mmapbatch_v2 { int num; /* number of pages to populate */ domid_t dom; /* target domain */ uint64_t addr; /* virtual address */ const xen_pfn_t *arr; /* array of mfns */ int *err; /* array of error codes */ } privcmd_mmapbatch_v2_t; typedef struct privcmd_blkmsg { unsigned long op; void *buf; int buf_size; } privcmd_blkmsg_t; /* * @cmd: IOCTL_PRIVCMD_HYPERCALL * @arg: &privcmd_hypercall_t * Return: Value returned from execution of the specified hypercall. */ #define IOCTL_PRIVCMD_HYPERCALL \ _IOWR('P', 0, privcmd_hypercall_t) #if defined(_KERNEL) /* compat */ #define IOCTL_PRIVCMD_INITDOMAIN_EVTCHN_OLD \ _IO('P', 1) typedef struct oprivcmd_hypercall { unsigned long op; unsigned long arg[5]; } oprivcmd_hypercall_t; #define IOCTL_PRIVCMD_HYPERCALL_OLD \ _IOWR('P', 0, oprivcmd_hypercall_t) #endif /* defined(_KERNEL) */ #define IOCTL_PRIVCMD_MMAP \ _IOW('P', 2, privcmd_mmap_t) #define IOCTL_PRIVCMD_MMAPBATCH \ _IOW('P', 3, privcmd_mmapbatch_t) #define IOCTL_PRIVCMD_GET_MACH2PHYS_START_MFN \ _IOR('P', 4, unsigned long) /* * @cmd: IOCTL_PRIVCMD_INITDOMAIN_EVTCHN * @arg: n/a * Return: Port associated with domain-controller end of control event channel * for the initial domain. */ #define IOCTL_PRIVCMD_INITDOMAIN_EVTCHN \ _IOR('P', 5, int) #define IOCTL_PRIVCMD_MMAPBATCH_V2 \ _IOW('P', 6, privcmd_mmapbatch_v2_t) /* * @cmd: IOCTL_PRIVCMD_MMAP_RESOURCE * @arg &privcmd_mmap_resource_t * Return: * map the specified resource at the provided virtual address */ typedef struct privcmd_mmap_resource { domid_t dom; uint32_t type; uint32_t id; uint32_t idx; uint64_t num; uint64_t addr; } privcmd_mmap_resource_t; #define IOCTL_PRIVCMD_MMAP_RESOURCE \ _IOW('P', 7, privcmd_mmap_resource_t) /* * @cmd: IOCTL_GNTDEV_MMAP_GRANT_REF * @arg &ioctl_gntdev_mmap_grant_ref * Return: * map the grant references at the virtual address provided by caller * The grant ref already exists (e.g. comes from a remote domain) */ struct ioctl_gntdev_grant_ref { /* The domain ID of the grant to be mapped. */ uint32_t domid; /* The grant reference of the grant to be mapped. */ uint32_t ref; }; struct ioctl_gntdev_grant_notify { ssize_t offset; uint32_t action; uint32_t event_channel_port; }; #define UNMAP_NOTIFY_CLEAR_BYTE 0x1 #define UNMAP_NOTIFY_SEND_EVENT 0x2 struct ioctl_gntdev_mmap_grant_ref { /* The number of grants to be mapped. */ uint32_t count; uint32_t pad; /* The virtual address where they should be mapped */ void *va; /* notify action */ struct ioctl_gntdev_grant_notify notify; /* Array of grant references, of size @count. */ struct ioctl_gntdev_grant_ref *refs; }; #define IOCTL_GNTDEV_MMAP_GRANT_REF \ _IOW('P', 8, struct ioctl_gntdev_mmap_grant_ref) /* * @cmd: IOCTL_GNTDEV_ALLOC_GRANT_REF * @arg &ioctl_gntdev_alloc_grant_ref * Return: * Allocate local memory and grant it to a remote domain. * local memory is mmaped at the virtual address provided by caller */ struct ioctl_gntdev_alloc_grant_ref { /* IN parameters */ uint16_t domid; uint16_t flags; uint32_t count; void *va; /* notify action */ struct ioctl_gntdev_grant_notify notify; /* Variable OUT parameter */ uint32_t *gref_ids; }; #define IOCTL_GNTDEV_ALLOC_GRANT_REF \ _IOW('P', 9, struct ioctl_gntdev_alloc_grant_ref) #define GNTDEV_ALLOC_FLAG_WRITABLE 0x01 /* Interface to /dev/xenevt */ /* EVTCHN_RESET: Clear and reinit the event buffer. Clear error condition. */ #define EVTCHN_RESET _IO('E', 1) /* EVTCHN_BIND: Bind to the specified event-channel port. */ #define EVTCHN_BIND _IOW('E', 2, unsigned long) /* EVTCHN_UNBIND: Unbind from the specified event-channel port. */ #define EVTCHN_UNBIND _IOW('E', 3, unsigned long) #endif /* __XEN_XENIO_H__ */