FreeBSD/Linux Kernel Cross Reference
sys/dev/hyperv/vmbus/hyperv_common_reg.h

     /*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      * Copyright (c) 2022 Microsoft Corp.
      * 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 unmodified, 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 THE AUTHOR ``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 THE AUTHOR 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 _HYPERV_COMMON_REG_H_
    #define _HYPERV_COMMON_REG_H_
    
    #include <sys/param.h>
    #include <sys/systm.h>
    
    #define MSR_HV_GUESTID_BUILD_MASK       0xffffULL
    #define MSR_HV_GUESTID_VERSION_MASK     0x0000ffffffff0000ULL
    #define MSR_HV_GUESTID_VERSION_SHIFT    16
    #define MSR_HV_GUESTID_OSID_MASK        0x00ff000000000000ULL
    #define MSR_HV_GUESTID_OSID_SHIFT       48
    #define MSR_HV_GUESTID_OSTYPE_MASK      0x7f00000000000000ULL
    #define MSR_HV_GUESTID_OSTYPE_SHIFT     56
    #define MSR_HV_GUESTID_OPENSRC          0x8000000000000000ULL
    #define MSR_HV_GUESTID_OSTYPE_LINUX     \
            ((0x01ULL << MSR_HV_GUESTID_OSTYPE_SHIFT) | MSR_HV_GUESTID_OPENSRC)
    #define MSR_HV_GUESTID_OSTYPE_FREEBSD   \
            ((0x02ULL << MSR_HV_GUESTID_OSTYPE_SHIFT) | MSR_HV_GUESTID_OPENSRC)
    
    #define MSR_HV_HYPERCALL                0x40000001
    #define MSR_HV_HYPERCALL_ENABLE         0x0001ULL
    #define MSR_HV_HYPERCALL_RSVD_MASK      0x0ffeULL
    #define MSR_HV_HYPERCALL_PGSHIFT        12
    
    #define MSR_HV_REFERENCE_TSC            0x40000021
    #define MSR_HV_REFTSC_ENABLE            0x0001ULL
    #define MSR_HV_REFTSC_RSVD_MASK         0x0ffeULL
    #define MSR_HV_REFTSC_PGSHIFT           12
    
    #define MSR_HV_SCTRL_ENABLE             0x0001ULL
    #define MSR_HV_SCTRL_RSVD_MASK          0xfffffffffffffffeULL
    
    #define MSR_HV_SIEFP_ENABLE             0x0001ULL
    #define MSR_HV_SIEFP_RSVD_MASK          0x0ffeULL
    #define MSR_HV_SIEFP_PGSHIFT            12
    
    #define MSR_HV_SIMP_ENABLE              0x0001ULL
    #define MSR_HV_SIMP_RSVD_MASK           0x0ffeULL
    #define MSR_HV_SIMP_PGSHIFT             12
    
    #define MSR_HV_SINT_VECTOR_MASK         0x00ffULL
    #define MSR_HV_SINT_RSVD1_MASK          0xff00ULL
    #define MSR_HV_SINT_MASKED              0x00010000ULL
    
    #define MSR_HV_SINT_RSVD2_MASK          0xfffffffffffc0000ULL
    #define MSR_HV_SINT_RSVD_MASK           (MSR_HV_SINT_RSVD1_MASK |       \
                                             MSR_HV_SINT_RSVD2_MASK)
    
    #define MSR_HV_STIMER0_CONFIG           0x400000b0
    #define MSR_HV_STIMER_CFG_ENABLE        0x0001ULL
    #define MSR_HV_STIMER_CFG_PERIODIC      0x0002ULL
    #define MSR_HV_STIMER_CFG_LAZY          0x0004ULL
    #define MSR_HV_STIMER_CFG_AUTOEN        0x0008ULL
    #define MSR_HV_STIMER_CFG_SINT_MASK     0x000f0000ULL
    #define MSR_HV_STIMER_CFG_SINT_SHIFT    16
    
    #define MSR_HV_STIMER0_COUNT            0x400000b1
    
    /*
     * CPUID leaves
     */
    
    #define CPUID_LEAF_HV_MAXLEAF           0x40000000
    
    #define CPUID_LEAF_HV_INTERFACE         0x40000001
    #define CPUID_HV_IFACE_HYPERV           0x31237648      /* HV#1 */
    
    /* EAX: features include/hyperv.h CPUID_HV_MSR */
    /* ECX: power management features */
    #define CPUPM_HV_CSTATE_MASK            0x000f  /* deepest C-state */
    #define CPUPM_HV_C3_HPET                0x0010  /* C3 requires HPET */
   #define CPUPM_HV_CSTATE(f)              ((f) & CPUPM_HV_CSTATE_MASK)
   /* EDX: features3 */
   #define CPUID3_HV_MWAIT                 0x0001  /* MWAIT */
   #define CPUID3_HV_XMM_HYPERCALL         0x0010  /* Hypercall input through
                                                    * XMM regs */
   #define CPUID3_HV_GUEST_IDLE            0x0020  /* guest idle */
   #define CPUID3_HV_NUMA                  0x0080  /* NUMA distance query */
   #define CPUID3_HV_TIME_FREQ             0x0100  /* timer frequency query
                                                    * (TSC, LAPIC) */
   #define CPUID3_HV_MSR_CRASH             0x0400  /* MSRs for guest crash */
   #define CPUID_LEAF_HV_LIMITS            0x40000005
   #define CPUID_LEAF_HV_HWFEATURES        0x40000006
   
   /*
    * Hyper-V Monitor Notification Facility
    */
   struct hyperv_mon_param {
           uint32_t        mp_connid;
           uint16_t        mp_evtflag_ofs;
           uint16_t        mp_rsvd;
   } __packed;
   
   /*
    * Hyper-V message types
    */
   #define HYPERV_MSGTYPE_NONE             0
   #define HYPERV_MSGTYPE_CHANNEL          1
   #define HYPERV_MSGTYPE_TIMER_EXPIRED    0x80000010
   
   /*
    * Hypercall status codes
    */
   #define HYPERCALL_STATUS_SUCCESS        0x0000
   
   /*
    * Hypercall input values
    */
   #define HYPERCALL_POST_MESSAGE          0x005c
   #define HYPERCALL_SIGNAL_EVENT          0x005d
   
   /*
    * Hypercall input parameters
    */
   #define HYPERCALL_PARAM_ALIGN           8
   #if 0
   /*
    * XXX
    * <<Hypervisor Top Level Functional Specification 4.0b>> requires
    * input parameters size to be multiple of 8, however, many post
    * message input parameters do _not_ meet this requirement.
    */
   #define HYPERCALL_PARAM_SIZE_ALIGN      8
   #endif
   
   /*
    * HYPERCALL_POST_MESSAGE
    */
   #define HYPERCALL_POSTMSGIN_DSIZE_MAX   240
   #define HYPERCALL_POSTMSGIN_SIZE        256
   
   struct hypercall_postmsg_in {
           uint32_t        hc_connid;
           uint32_t        hc_rsvd;
           uint32_t        hc_msgtype;     /* HYPERV_MSGTYPE_ */
           uint32_t        hc_dsize;
           uint8_t         hc_data[HYPERCALL_POSTMSGIN_DSIZE_MAX];
   } __packed;
   CTASSERT(sizeof(struct hypercall_postmsg_in) == HYPERCALL_POSTMSGIN_SIZE);
   
   /*
    * HYPERCALL_SIGNAL_EVENT
    *
    * struct hyperv_mon_param.
    */
   
   #endif /* i!__HYPERV_COMMON_REG_H__ */

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