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freebsd-dev/sys/amd64/include/vmm_dev.h
Scott Long 422a8a4d3a Tie the name limit of a VM to SPECNAMELEN from devfs instead of a 
hard-coded value. Don't allocate space for it from the kernel stack.
Account for prefix, suffix, and separator space in the name. This
takes the effective length up to 229 bytes on 13-current, and 37 bytes
on 12-stable. 37 bytes is enough to hold a full GUID string.

PR:		234134
MFC after:	1 week
Differential Revision:	http://reviews.freebsd.org/D20924
2019-07-12 18:37:56 +00:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* 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 _VMM_DEV_H_
#define _VMM_DEV_H_
#ifdef _KERNEL
void vmmdev_init(void);
int vmmdev_cleanup(void);
#endif
struct vm_memmap {
vm_paddr_t gpa;
int segid; /* memory segment */
vm_ooffset_t segoff; /* offset into memory segment */
size_t len; /* mmap length */
int prot; /* RWX */
int flags;
};
#define VM_MEMMAP_F_WIRED 0x01
#define VM_MEMMAP_F_IOMMU 0x02
#define VM_MEMSEG_NAME(m) ((m)->name[0] != '\0' ? (m)->name : NULL)
struct vm_memseg {
int segid;
size_t len;
char name[VM_MAX_SUFFIXLEN + 1];
};
struct vm_register {
int cpuid;
int regnum; /* enum vm_reg_name */
uint64_t regval;
};
struct vm_seg_desc { /* data or code segment */
int cpuid;
int regnum; /* enum vm_reg_name */
struct seg_desc desc;
};
struct vm_register_set {
int cpuid;
unsigned int count;
const int *regnums; /* enum vm_reg_name */
uint64_t *regvals;
};
struct vm_run {
int cpuid;
struct vm_exit vm_exit;
};
struct vm_exception {
int cpuid;
int vector;
uint32_t error_code;
int error_code_valid;
int restart_instruction;
};
struct vm_lapic_msi {
uint64_t msg;
uint64_t addr;
};
struct vm_lapic_irq {
int cpuid;
int vector;
};
struct vm_ioapic_irq {
int irq;
};
struct vm_isa_irq {
int atpic_irq;
int ioapic_irq;
};
struct vm_isa_irq_trigger {
int atpic_irq;
enum vm_intr_trigger trigger;
};
struct vm_capability {
int cpuid;
enum vm_cap_type captype;
int capval;
int allcpus;
};
struct vm_pptdev {
int bus;
int slot;
int func;
};
struct vm_pptdev_mmio {
int bus;
int slot;
int func;
vm_paddr_t gpa;
vm_paddr_t hpa;
size_t len;
};
struct vm_pptdev_msi {
int vcpu;
int bus;
int slot;
int func;
int numvec; /* 0 means disabled */
uint64_t msg;
uint64_t addr;
};
struct vm_pptdev_msix {
int vcpu;
int bus;
int slot;
int func;
int idx;
uint64_t msg;
uint32_t vector_control;
uint64_t addr;
};
struct vm_nmi {
int cpuid;
};
#define MAX_VM_STATS 64
struct vm_stats {
int cpuid; /* in */
int num_entries; /* out */
struct timeval tv;
uint64_t statbuf[MAX_VM_STATS];
};
struct vm_stat_desc {
int index; /* in */
char desc[128]; /* out */
};
struct vm_x2apic {
int cpuid;
enum x2apic_state state;
};
struct vm_gpa_pte {
uint64_t gpa; /* in */
uint64_t pte[4]; /* out */
int ptenum;
};
struct vm_hpet_cap {
uint32_t capabilities; /* lower 32 bits of HPET capabilities */
};
struct vm_suspend {
enum vm_suspend_how how;
};
struct vm_gla2gpa {
int vcpuid; /* inputs */
int prot; /* PROT_READ or PROT_WRITE */
uint64_t gla;
struct vm_guest_paging paging;
int fault; /* outputs */
uint64_t gpa;
};
struct vm_activate_cpu {
int vcpuid;
};
struct vm_cpuset {
int which;
int cpusetsize;
cpuset_t *cpus;
};
#define VM_ACTIVE_CPUS 0
#define VM_SUSPENDED_CPUS 1
#define VM_DEBUG_CPUS 2
struct vm_intinfo {
int vcpuid;
uint64_t info1;
uint64_t info2;
};
struct vm_rtc_time {
time_t secs;
};
struct vm_rtc_data {
int offset;
uint8_t value;
};
struct vm_cpu_topology {
uint16_t sockets;
uint16_t cores;
uint16_t threads;
uint16_t maxcpus;
};
enum {
/* general routines */
IOCNUM_ABIVERS = 0,
IOCNUM_RUN = 1,
IOCNUM_SET_CAPABILITY = 2,
IOCNUM_GET_CAPABILITY = 3,
IOCNUM_SUSPEND = 4,
IOCNUM_REINIT = 5,
/* memory apis */
IOCNUM_MAP_MEMORY = 10, /* deprecated */
IOCNUM_GET_MEMORY_SEG = 11, /* deprecated */
IOCNUM_GET_GPA_PMAP = 12,
IOCNUM_GLA2GPA = 13,
IOCNUM_ALLOC_MEMSEG = 14,
IOCNUM_GET_MEMSEG = 15,
IOCNUM_MMAP_MEMSEG = 16,
IOCNUM_MMAP_GETNEXT = 17,
IOCNUM_GLA2GPA_NOFAULT = 18,
/* register/state accessors */
IOCNUM_SET_REGISTER = 20,
IOCNUM_GET_REGISTER = 21,
IOCNUM_SET_SEGMENT_DESCRIPTOR = 22,
IOCNUM_GET_SEGMENT_DESCRIPTOR = 23,
IOCNUM_SET_REGISTER_SET = 24,
IOCNUM_GET_REGISTER_SET = 25,
/* interrupt injection */
IOCNUM_GET_INTINFO = 28,
IOCNUM_SET_INTINFO = 29,
IOCNUM_INJECT_EXCEPTION = 30,
IOCNUM_LAPIC_IRQ = 31,
IOCNUM_INJECT_NMI = 32,
IOCNUM_IOAPIC_ASSERT_IRQ = 33,
IOCNUM_IOAPIC_DEASSERT_IRQ = 34,
IOCNUM_IOAPIC_PULSE_IRQ = 35,
IOCNUM_LAPIC_MSI = 36,
IOCNUM_LAPIC_LOCAL_IRQ = 37,
IOCNUM_IOAPIC_PINCOUNT = 38,
IOCNUM_RESTART_INSTRUCTION = 39,
/* PCI pass-thru */
IOCNUM_BIND_PPTDEV = 40,
IOCNUM_UNBIND_PPTDEV = 41,
IOCNUM_MAP_PPTDEV_MMIO = 42,
IOCNUM_PPTDEV_MSI = 43,
IOCNUM_PPTDEV_MSIX = 44,
/* statistics */
IOCNUM_VM_STATS = 50,
IOCNUM_VM_STAT_DESC = 51,
/* kernel device state */
IOCNUM_SET_X2APIC_STATE = 60,
IOCNUM_GET_X2APIC_STATE = 61,
IOCNUM_GET_HPET_CAPABILITIES = 62,
/* CPU Topology */
IOCNUM_SET_TOPOLOGY = 63,
IOCNUM_GET_TOPOLOGY = 64,
/* legacy interrupt injection */
IOCNUM_ISA_ASSERT_IRQ = 80,
IOCNUM_ISA_DEASSERT_IRQ = 81,
IOCNUM_ISA_PULSE_IRQ = 82,
IOCNUM_ISA_SET_IRQ_TRIGGER = 83,
/* vm_cpuset */
IOCNUM_ACTIVATE_CPU = 90,
IOCNUM_GET_CPUSET = 91,
IOCNUM_SUSPEND_CPU = 92,
IOCNUM_RESUME_CPU = 93,
/* RTC */
IOCNUM_RTC_READ = 100,
IOCNUM_RTC_WRITE = 101,
IOCNUM_RTC_SETTIME = 102,
IOCNUM_RTC_GETTIME = 103,
};
#define VM_RUN \
_IOWR('v', IOCNUM_RUN, struct vm_run)
#define VM_SUSPEND \
_IOW('v', IOCNUM_SUSPEND, struct vm_suspend)
#define VM_REINIT \
_IO('v', IOCNUM_REINIT)
#define VM_ALLOC_MEMSEG \
_IOW('v', IOCNUM_ALLOC_MEMSEG, struct vm_memseg)
#define VM_GET_MEMSEG \
_IOWR('v', IOCNUM_GET_MEMSEG, struct vm_memseg)
#define VM_MMAP_MEMSEG \
_IOW('v', IOCNUM_MMAP_MEMSEG, struct vm_memmap)
#define VM_MMAP_GETNEXT \
_IOWR('v', IOCNUM_MMAP_GETNEXT, struct vm_memmap)
#define VM_SET_REGISTER \
_IOW('v', IOCNUM_SET_REGISTER, struct vm_register)
#define VM_GET_REGISTER \
_IOWR('v', IOCNUM_GET_REGISTER, struct vm_register)
#define VM_SET_SEGMENT_DESCRIPTOR \
_IOW('v', IOCNUM_SET_SEGMENT_DESCRIPTOR, struct vm_seg_desc)
#define VM_GET_SEGMENT_DESCRIPTOR \
_IOWR('v', IOCNUM_GET_SEGMENT_DESCRIPTOR, struct vm_seg_desc)
#define VM_SET_REGISTER_SET \
_IOW('v', IOCNUM_SET_REGISTER_SET, struct vm_register_set)
#define VM_GET_REGISTER_SET \
_IOWR('v', IOCNUM_GET_REGISTER_SET, struct vm_register_set)
#define VM_INJECT_EXCEPTION \
_IOW('v', IOCNUM_INJECT_EXCEPTION, struct vm_exception)
#define VM_LAPIC_IRQ \
_IOW('v', IOCNUM_LAPIC_IRQ, struct vm_lapic_irq)
#define VM_LAPIC_LOCAL_IRQ \
_IOW('v', IOCNUM_LAPIC_LOCAL_IRQ, struct vm_lapic_irq)
#define VM_LAPIC_MSI \
_IOW('v', IOCNUM_LAPIC_MSI, struct vm_lapic_msi)
#define VM_IOAPIC_ASSERT_IRQ \
_IOW('v', IOCNUM_IOAPIC_ASSERT_IRQ, struct vm_ioapic_irq)
#define VM_IOAPIC_DEASSERT_IRQ \
_IOW('v', IOCNUM_IOAPIC_DEASSERT_IRQ, struct vm_ioapic_irq)
#define VM_IOAPIC_PULSE_IRQ \
_IOW('v', IOCNUM_IOAPIC_PULSE_IRQ, struct vm_ioapic_irq)
#define VM_IOAPIC_PINCOUNT \
_IOR('v', IOCNUM_IOAPIC_PINCOUNT, int)
#define VM_ISA_ASSERT_IRQ \
_IOW('v', IOCNUM_ISA_ASSERT_IRQ, struct vm_isa_irq)
#define VM_ISA_DEASSERT_IRQ \
_IOW('v', IOCNUM_ISA_DEASSERT_IRQ, struct vm_isa_irq)
#define VM_ISA_PULSE_IRQ \
_IOW('v', IOCNUM_ISA_PULSE_IRQ, struct vm_isa_irq)
#define VM_ISA_SET_IRQ_TRIGGER \
_IOW('v', IOCNUM_ISA_SET_IRQ_TRIGGER, struct vm_isa_irq_trigger)
#define VM_SET_CAPABILITY \
_IOW('v', IOCNUM_SET_CAPABILITY, struct vm_capability)
#define VM_GET_CAPABILITY \
_IOWR('v', IOCNUM_GET_CAPABILITY, struct vm_capability)
#define VM_BIND_PPTDEV \
_IOW('v', IOCNUM_BIND_PPTDEV, struct vm_pptdev)
#define VM_UNBIND_PPTDEV \
_IOW('v', IOCNUM_UNBIND_PPTDEV, struct vm_pptdev)
#define VM_MAP_PPTDEV_MMIO \
_IOW('v', IOCNUM_MAP_PPTDEV_MMIO, struct vm_pptdev_mmio)
#define VM_PPTDEV_MSI \
_IOW('v', IOCNUM_PPTDEV_MSI, struct vm_pptdev_msi)
#define VM_PPTDEV_MSIX \
_IOW('v', IOCNUM_PPTDEV_MSIX, struct vm_pptdev_msix)
#define VM_INJECT_NMI \
_IOW('v', IOCNUM_INJECT_NMI, struct vm_nmi)
#define VM_STATS \
_IOWR('v', IOCNUM_VM_STATS, struct vm_stats)
#define VM_STAT_DESC \
_IOWR('v', IOCNUM_VM_STAT_DESC, struct vm_stat_desc)
#define VM_SET_X2APIC_STATE \
_IOW('v', IOCNUM_SET_X2APIC_STATE, struct vm_x2apic)
#define VM_GET_X2APIC_STATE \
_IOWR('v', IOCNUM_GET_X2APIC_STATE, struct vm_x2apic)
#define VM_GET_HPET_CAPABILITIES \
_IOR('v', IOCNUM_GET_HPET_CAPABILITIES, struct vm_hpet_cap)
#define VM_SET_TOPOLOGY \
_IOW('v', IOCNUM_SET_TOPOLOGY, struct vm_cpu_topology)
#define VM_GET_TOPOLOGY \
_IOR('v', IOCNUM_GET_TOPOLOGY, struct vm_cpu_topology)
#define VM_GET_GPA_PMAP \
_IOWR('v', IOCNUM_GET_GPA_PMAP, struct vm_gpa_pte)
#define VM_GLA2GPA \
_IOWR('v', IOCNUM_GLA2GPA, struct vm_gla2gpa)
#define VM_GLA2GPA_NOFAULT \
_IOWR('v', IOCNUM_GLA2GPA_NOFAULT, struct vm_gla2gpa)
#define VM_ACTIVATE_CPU \
_IOW('v', IOCNUM_ACTIVATE_CPU, struct vm_activate_cpu)
#define VM_GET_CPUS \
_IOW('v', IOCNUM_GET_CPUSET, struct vm_cpuset)
#define VM_SUSPEND_CPU \
_IOW('v', IOCNUM_SUSPEND_CPU, struct vm_activate_cpu)
#define VM_RESUME_CPU \
_IOW('v', IOCNUM_RESUME_CPU, struct vm_activate_cpu)
#define VM_SET_INTINFO \
_IOW('v', IOCNUM_SET_INTINFO, struct vm_intinfo)
#define VM_GET_INTINFO \
_IOWR('v', IOCNUM_GET_INTINFO, struct vm_intinfo)
#define VM_RTC_WRITE \
_IOW('v', IOCNUM_RTC_WRITE, struct vm_rtc_data)
#define VM_RTC_READ \
_IOWR('v', IOCNUM_RTC_READ, struct vm_rtc_data)
#define VM_RTC_SETTIME \
_IOW('v', IOCNUM_RTC_SETTIME, struct vm_rtc_time)
#define VM_RTC_GETTIME \
_IOR('v', IOCNUM_RTC_GETTIME, struct vm_rtc_time)
#define VM_RESTART_INSTRUCTION \
_IOW('v', IOCNUM_RESTART_INSTRUCTION, int)
#endif
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