Date: Thu, 29 Sep 2022 15:19:44 +0100 From: Jessica Clarke <jrtc27@freebsd.org> To: Andrew Turner <andrew@fubar.geek.nz> Cc: Wei Hu <whu@FreeBSD.org>, "src-committers@freebsd.org" <src-committers@FreeBSD.org>, "dev-commits-src-all@freebsd.org" <dev-commits-src-all@FreeBSD.org>, "dev-commits-src-main@freebsd.org" <dev-commits-src-main@FreeBSD.org> Subject: Re: git: 6cf00ef80c20 - main - arm64: enablement for ARM64 in Hyper-V (Part 1) Message-ID: <A6215498-17AE-4064-B9B6-66E3F134D8B8@freebsd.org> In-Reply-To: <02EE030E-41E4-46A9-AD75-CA9612770275@fubar.geek.nz> References: <202209291019.28TAJoks018126@gitrepo.freebsd.org> <02EE030E-41E4-46A9-AD75-CA9612770275@fubar.geek.nz>
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On 29 Sept 2022, at 15:12, Andrew Turner <andrew@fubar.geek.nz> wrote: >=20 > It looks like you have the contents of = sys/dev/hyperv/vmbus/aarch64/hyperv_aarch64.c duplicated. 3 of the 5 files in fact: https://reviews.freebsd.org/D36466?vs=3D111054&id=3D111175#toc Also confused why both aarch64 and machdep files exist; surely that=E2=80=99= s the same concept? Also strange to land aarch64 files without hooking them up in sys/conf and sys/modules. Jess >> On 29 Sep 2022, at 11:19, Wei Hu <whu@FreeBSD.org> wrote: >>=20 >> The branch main has been updated by whu: >>=20 >> URL: = https://cgit.FreeBSD.org/src/commit/?id=3D6cf00ef80c2014811bb6ce35e969b95d= fe574793 >>=20 >> commit 6cf00ef80c2014811bb6ce35e969b95dfe574793 >> Author: Souradeep Chakrabarti <schakrabarti@microsoft.com> >> AuthorDate: 2022-09-29 09:57:46 +0000 >> Commit: Wei Hu <whu@FreeBSD.org> >> CommitDate: 2022-09-29 10:14:41 +0000 >>=20 >> arm64: enablement for ARM64 in Hyper-V (Part 1) >>=20 >> The changes are to refactor the code of vmbus.c and hyperv.c to = keep minimal >> arch specific codes there and have them in separate files in x86/ = arm64/ . >> x86 is a new directory, which contains codes for x86 / x86_64. = Instead of >> repeating the same codes in existing amd64/ and i386/, this = approach reduced >> the repetition. This is first of three patches for Hyper-V = enablement. >>=20 >> Reviewed by: whu >> Tested by: Souradeep Chakrabarti <schakrabarti@microsoft.com> >> Sponsored by: Microsoft >> Differential Revision: https://reviews.freebsd.org/D36466 >> --- >> sys/dev/hyperv/vmbus/aarch64/hyperv_aarch64.c | 190 +++++++++++++ >> sys/dev/hyperv/vmbus/aarch64/hyperv_machdep.c | 103 +++++++ >> sys/dev/hyperv/vmbus/aarch64/hyperv_machdep.h | 59 ++++ >> sys/dev/hyperv/vmbus/aarch64/hyperv_reg.h | 386 = ++++++++++++++++++++++++++ >> sys/dev/hyperv/vmbus/aarch64/vmbus_aarch64.c | 314 = +++++++++++++++++++++ >> 5 files changed, 1052 insertions(+) >>=20 >> diff --git a/sys/dev/hyperv/vmbus/aarch64/hyperv_aarch64.c = b/sys/dev/hyperv/vmbus/aarch64/hyperv_aarch64.c >> new file mode 100644 >> index 000000000000..6104e88130db >> --- /dev/null >> +++ b/sys/dev/hyperv/vmbus/aarch64/hyperv_aarch64.c >> @@ -0,0 +1,190 @@ >> +/*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD >> + * Copyright (c) 2009-2012,2016-2017, 2022 Microsoft Corp. >> + * Copyright (c) 2012 NetApp Inc. >> + * Copyright (c) 2012 Citrix 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 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. >> + */ >> + >> +/** >> + * Implements low-level interactions with Hyper-V/Azure >> + */ >> + >> +#include <sys/cdefs.h> >> +__FBSDID("$FreeBSD$"); >> + >> +#include <sys/param.h> >> +#include <sys/systm.h> >> +#include <sys/kernel.h> >> +#include <sys/malloc.h> >> +#include <sys/timetc.h> >> + >> +#include <vm/vm.h> >> +#include <vm/pmap.h> >> +#include <vm/vm_extern.h> >> +#include <vm/vm_kern.h> >> + >> +#include <dev/hyperv/include/hyperv.h> >> +#include <dev/hyperv/include/hyperv_busdma.h> >> +#include <dev/hyperv/vmbus/aarch64/hyperv_machdep.h> >> +#include <dev/hyperv/vmbus/aarch64/hyperv_reg.h> >> +#include <dev/hyperv/vmbus/hyperv_var.h> >> + >> +void hyperv_init_tc(void); >> +int hypercall_page_setup(vm_paddr_t); >> +void hypercall_disable(void); >> +bool hyperv_identify_features(void); >> + >> +u_int hyperv_ver_major; >> +u_int hyperv_features; >> +u_int hyperv_recommends; >> + >> +hyperv_tc64_t hyperv_tc64; >> + >> +void >> +hyperv_init_tc(void) >> +{ >> + hyperv_tc64 =3D NULL; >> +} >> + >> +int >> +hypercall_page_setup(vm_paddr_t hc) >> +{ >> + return (0); >> +} >> + >> +void >> +hypercall_disable(void) >> +{ >> + return; >> +} >> + >> +bool >> +hyperv_identify_features(void) >> +{ >> + struct hv_get_vp_registers_output result; >> + vm_guest =3D VM_GUEST_HV; >> + >> + hv_get_vpreg_128(CPUID_LEAF_HV_FEATURES, &result); >> + hyperv_features =3D result.as32.a; >> + hv_get_vpreg_128(CPUID_LEAF_HV_IDENTITY, &result); >> + hyperv_ver_major =3D result.as32.b >> 16; >> + hv_get_vpreg_128(CPUID_LEAF_HV_RECOMMENDS, &result); >> + hyperv_recommends =3D result.as32.a; >> + return (true); >> +} >> +/*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD >> + * Copyright (c) 2009-2012,2016-2017, 2022 Microsoft Corp. >> + * Copyright (c) 2012 NetApp Inc. >> + * Copyright (c) 2012 Citrix 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 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. >> + */ >> + >> +/** >> + * Implements low-level interactions with Hyper-V/Azure >> + */ >> + >> +#include <sys/cdefs.h> >> +__FBSDID("$FreeBSD$"); >> + >> +#include <sys/param.h> >> +#include <sys/systm.h> >> +#include <sys/kernel.h> >> +#include <sys/malloc.h> >> +#include <sys/timetc.h> >> + >> +#include <vm/vm.h> >> +#include <vm/pmap.h> >> +#include <vm/vm_extern.h> >> +#include <vm/vm_kern.h> >> + >> +#include <dev/hyperv/include/hyperv.h> >> +#include <dev/hyperv/include/hyperv_busdma.h> >> +#include <dev/hyperv/vmbus/aarch64/hyperv_machdep.h> >> +#include <dev/hyperv/vmbus/aarch64/hyperv_reg.h> >> +#include <dev/hyperv/vmbus/hyperv_var.h> >> + >> +void hyperv_init_tc(void); >> +int hypercall_page_setup(vm_paddr_t); >> +void hypercall_disable(void); >> +bool hyperv_identify_features(void); >> + >> +u_int hyperv_ver_major; >> +u_int hyperv_features; >> +u_int hyperv_recommends; >> + >> +hyperv_tc64_t hyperv_tc64; >> + >> +void >> +hyperv_init_tc(void) >> +{ >> + hyperv_tc64 =3D NULL; >> +} >> + >> +int >> +hypercall_page_setup(vm_paddr_t hc) >> +{ >> + return (0); >> +} >> + >> +void >> +hypercall_disable(void) >> +{ >> + return; >> +} >> + >> +bool >> +hyperv_identify_features(void) >> +{ >> + struct hv_get_vp_registers_output result; >> + vm_guest =3D VM_GUEST_HV; >> + >> + hv_get_vpreg_128(CPUID_LEAF_HV_FEATURES, &result); >> + hyperv_features =3D result.as32.a; >> + hv_get_vpreg_128(CPUID_LEAF_HV_IDENTITY, &result); >> + hyperv_ver_major =3D result.as32.b >> 16; >> + hv_get_vpreg_128(CPUID_LEAF_HV_RECOMMENDS, &result); >> + hyperv_recommends =3D result.as32.a; >> + return (true); >> +} >> diff --git a/sys/dev/hyperv/vmbus/aarch64/hyperv_machdep.c = b/sys/dev/hyperv/vmbus/aarch64/hyperv_machdep.c >> new file mode 100644 >> index 000000000000..9bfe34044335 >> --- /dev/null >> +++ b/sys/dev/hyperv/vmbus/aarch64/hyperv_machdep.c >> @@ -0,0 +1,103 @@ >> +/*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD >> + * >> + * Copyright (c) 2016-2017,2022 Microsoft Corp. >> + * >> + * 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. >> + */ >> + >> +#include <sys/cdefs.h> >> +__FBSDID("$FreeBSD$"); >> + >> +#include <dev/hyperv/include/hyperv.h> >> +#include <dev/hyperv/include/hyperv_busdma.h> >> +#include <dev/hyperv/vmbus/aarch64/hyperv_machdep.h> >> +#include <dev/hyperv/vmbus/aarch64/hyperv_reg.h> >> +#include <dev/hyperv/vmbus/hyperv_var.h> >> +#include <dev/psci/smccc.h> >> + >> +#define HVCALL_SET_VP_REGISTERS 0x0051 >> +#define HVCALL_GET_VP_REGISTERS 0x0050 >> +#define BIT(A) (1 << (A)) >> +#define HV_HYPERCALL_FAST_BIT BIT(16) >> +#define BIT_ULL(a) (1ULL << (a)) >> +#define HV_HYPERCALL_REP_COMP_1 BIT_ULL(32) >> +#define HV_PARTITION_ID_SELF ((u64)-1) >> +#define HV_VP_INDEX_SELF ((u32)-2) >> +#define HV_SMCCC_FUNC_NUMBER 1 >> + >> +#define HV_FUNC_ID \ >> + SMCCC_FUNC_ID(SMCCC_YIELDING_CALL, SMCCC_64BIT_CALL, \ >> + SMCCC_VENDOR_HYP_SERVICE_CALLS, HV_SMCCC_FUNC_NUMBER) >> + >> +void >> +arm_hv_set_vreg(u32 msr, u64 value) >> +{ >> + arm_smccc_hvc(HV_FUNC_ID, >> + HVCALL_SET_VP_REGISTERS | HV_HYPERCALL_FAST_BIT | >> + HV_HYPERCALL_REP_COMP_1, >> + HV_PARTITION_ID_SELF, HV_VP_INDEX_SELF, msr, 0, value, 0, = NULL); >> +} >> + >> +void >> +hv_get_vpreg_128(u32 msr, struct hv_get_vp_registers_output *result) >> +{ >> + struct arm_smccc_1_2_regs args; >> + struct arm_smccc_1_2_regs res; >> + >> + args.a0 =3D HV_FUNC_ID; >> + args.a1 =3D HVCALL_GET_VP_REGISTERS | HV_HYPERCALL_FAST_BIT | >> + HV_HYPERCALL_REP_COMP_1; >> + args.a2 =3D HV_PARTITION_ID_SELF; >> + args.a3 =3D HV_VP_INDEX_SELF; >> + args.a4 =3D msr; >> + >> + /* >> + * Use the SMCCC 1.2 interface because the results are in = registers >> + * beyond X0-X3. >> + */ >> + arm_smccc_1_2_hvc(&args, &res); >> + >> + result->as64.low =3D res.a6; >> + result->as64.high =3D res.a7; >> +} >> + >> +u64 >> +arm_hv_get_vreg(u32 msr) >> +{ >> + struct hv_get_vp_registers_output output; >> + >> + hv_get_vpreg_128(msr, &output); >> + >> + return (output.as64.low); >> +} >> + >> +uint64_t >> +hypercall_md(volatile void *hc_addr, uint64_t in_val, uint64_t = in_paddr, >> + uint64_t out_paddr) >> +{ >> + struct arm_smccc_res res; >> + >> + arm_smccc_hvc(HV_FUNC_ID, in_val, in_paddr, out_paddr, 0, 0, 0, = 0, >> + &res); >> + >> + return (res.a0); >> +} >> diff --git a/sys/dev/hyperv/vmbus/aarch64/hyperv_machdep.h = b/sys/dev/hyperv/vmbus/aarch64/hyperv_machdep.h >> new file mode 100644 >> index 000000000000..b017fdbc14c9 >> --- /dev/null >> +++ b/sys/dev/hyperv/vmbus/aarch64/hyperv_machdep.h >> @@ -0,0 +1,59 @@ >> +/*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD >> + * >> + * Copyright (c) 2022 Microsoft Corp. >> + * >> + * 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_MACHDEP_H_ >> +#define _HYPERV_MACHDEP_H_ >> + >> +#include <sys/param.h> >> + >> +typedef uint32_t u32; >> +typedef uint64_t u64; >> +struct hv_get_vp_registers_output { >> + union { >> + struct { >> + u32 a; >> + u32 b; >> + u32 c; >> + u32 d; >> + } as32 __packed; >> + struct { >> + u64 low; >> + u64 high; >> + } as64 __packed; >> + }; >> +}; >> + >> +uint64_t hypercall_md(volatile void *hc_addr, u64 in_val, >> + u64 in_paddr, u64 out_paddr); >> +void hv_get_vpreg_128(u32, struct hv_get_vp_registers_output *); >> +void arm_hv_set_vreg(u32 msr, u64 val); >> +#define WRMSR(msr, val) arm_hv_set_vreg(msr, val) >> +u64 arm_hv_get_vreg(u32 msr); >> +#define RDMSR(msr) arm_hv_get_vreg(msr) >> + >> +#endif /* !_HYPERV_MACHDEP_H_ */ >> diff --git a/sys/dev/hyperv/vmbus/aarch64/hyperv_reg.h = b/sys/dev/hyperv/vmbus/aarch64/hyperv_reg.h >> new file mode 100644 >> index 000000000000..132b40768790 >> --- /dev/null >> +++ b/sys/dev/hyperv/vmbus/aarch64/hyperv_reg.h >> @@ -0,0 +1,386 @@ >> +/*- 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_REG_H_ >> +#define _HYPERV_REG_H_ >> + >> +#include <sys/param.h> >> +#include <sys/systm.h> >> + >> +/* >> + * Hyper-V Synthetic MSRs >> + */ >> + >> +#define MSR_HV_GUEST_OS_ID 0x00090002 >> +#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_VP_INDEX 0x00090003 >> + >> +#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_SCONTROL 0x000A0010 >> +#define MSR_HV_SCTRL_ENABLE 0x0001ULL >> +#define MSR_HV_SCTRL_RSVD_MASK 0xfffffffffffffffeULL >> + >> +#define MSR_HV_SIEFP 0x000A0012 >> +#define MSR_HV_SIEFP_ENABLE 0x0001ULL >> +#define MSR_HV_SIEFP_RSVD_MASK 0x0ffeULL >> +#define MSR_HV_SIEFP_PGSHIFT 12 >> + >> +#define MSR_HV_SIMP 0x000A0013 >> +#define MSR_HV_SIMP_ENABLE 0x0001ULL >> +#define MSR_HV_SIMP_RSVD_MASK 0x0ffeULL >> +#define MSR_HV_SIMP_PGSHIFT 12 >> + >> +#define MSR_HV_EOM 0x000A0014 >> + >> +#define MSR_HV_SINT0 0x000A0000 >> +#define MSR_HV_SINT_VECTOR_MASK 0x00ffULL >> +#define MSR_HV_SINT_RSVD1_MASK 0xff00ULL >> +#define MSR_HV_SINT_MASKED 0x00010000ULL >> +#define MSR_HV_SINT_AUTOEOI 0x00000000ULL >> +#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 = */ >> + >> +#define CPUID_LEAF_HV_IDENTITY 0x00000100 >> + >> +#define CPUID_LEAF_HV_FEATURES 0x00000200 >> +/* 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_RECOMMENDS 0x00000201 >> +#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) =3D=3D = HYPERCALL_POSTMSGIN_SIZE); >> + >> +/* >> + * HYPERCALL_SIGNAL_EVENT >> + * >> + * struct hyperv_mon_param. >> + */ >> + >> +#endif /* !_HYPERV_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_REG_H_ >> +#define _HYPERV_REG_H_ >> + >> +#include <sys/param.h> >> +#include <sys/systm.h> >> + >> +/* >> + * Hyper-V Synthetic MSRs >> + */ >> + >> +#define MSR_HV_GUEST_OS_ID 0x00090002 >> +#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_VP_INDEX 0x00090003 >> + >> +#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_SCONTROL 0x000A0010 >> +#define MSR_HV_SCTRL_ENABLE 0x0001ULL >> +#define MSR_HV_SCTRL_RSVD_MASK 0xfffffffffffffffeULL >> + >> +#define MSR_HV_SIEFP 0x000A0012 >> +#define MSR_HV_SIEFP_ENABLE 0x0001ULL >> +#define MSR_HV_SIEFP_RSVD_MASK 0x0ffeULL >> +#define MSR_HV_SIEFP_PGSHIFT 12 >> + >> +#define MSR_HV_SIMP 0x000A0013 >> +#define MSR_HV_SIMP_ENABLE 0x0001ULL >> +#define MSR_HV_SIMP_RSVD_MASK 0x0ffeULL >> +#define MSR_HV_SIMP_PGSHIFT 12 >> + >> +#define MSR_HV_EOM 0x000A0014 >> + >> +#define MSR_HV_SINT0 0x000A0000 >> +#define MSR_HV_SINT_VECTOR_MASK 0x00ffULL >> +#define MSR_HV_SINT_RSVD1_MASK 0xff00ULL >> +#define MSR_HV_SINT_MASKED 0x00010000ULL >> +#define MSR_HV_SINT_AUTOEOI 0x00000000ULL >> +#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 = */ >> + >> +#define CPUID_LEAF_HV_IDENTITY 0x00000100 >> + >> +#define CPUID_LEAF_HV_FEATURES 0x00000200 >> +/* 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_RECOMMENDS 0x00000201 >> +#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) =3D=3D = HYPERCALL_POSTMSGIN_SIZE); >> + >> +/* >> + * HYPERCALL_SIGNAL_EVENT >> + * >> + * struct hyperv_mon_param. >> + */ >> + >> +#endif /* !_HYPERV_REG_H_ */ >> diff --git a/sys/dev/hyperv/vmbus/aarch64/vmbus_aarch64.c = b/sys/dev/hyperv/vmbus/aarch64/vmbus_aarch64.c >> new file mode 100644 >> index 000000000000..ba4d8c9bc36e >> --- /dev/null >> +++ b/sys/dev/hyperv/vmbus/aarch64/vmbus_aarch64.c >> @@ -0,0 +1,314 @@ >> +/*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD >> + * Copyright (c) 2009-2012,2016-2017, 2022 Microsoft Corp. >> + * Copyright (c) 2012 NetApp Inc. >> + * Copyright (c) 2012 Citrix 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 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. >> + */ >> + >> +/* >> + * VM Bus Driver Implementation >> + */ >> + >> +#include <sys/cdefs.h> >> +__FBSDID("$FreeBSD$"); >> + >> +#include <sys/param.h> >> +#include <sys/bus.h> >> +#include <sys/kernel.h> >> +#include <sys/linker.h> >> +#include <sys/lock.h> >> +#include <sys/malloc.h> >> +#include <sys/module.h> >> +#include <sys/mutex.h> >> +#include <sys/sbuf.h> >> +#include <sys/smp.h> >> +#include <sys/sysctl.h> >> +#include <sys/systm.h> >> +#include <sys/taskqueue.h> >> + >> +#include <vm/vm.h> >> +#include <vm/vm_param.h> >> +#include <vm/pmap.h> >> + >> +#include <machine/bus.h> >> +#include <machine/metadata.h> >> +#include <machine/md_var.h> >> +#include <machine/resource.h> >> +#include <contrib/dev/acpica/include/acpi.h> >> +#include <dev/acpica/acpivar.h> >> + >> +#include <dev/hyperv/include/hyperv.h> >> +#include <dev/hyperv/include/vmbus_xact.h> >> +#include <dev/hyperv/vmbus/hyperv_var.h> >> +#include <dev/hyperv/vmbus/vmbus_reg.h> >> +#include <dev/hyperv/vmbus/vmbus_var.h> >> +#include <dev/hyperv/vmbus/vmbus_chanvar.h> >> +#include <dev/hyperv/vmbus/aarch64/hyperv_machdep.h> >> +#include <dev/hyperv/vmbus/aarch64/hyperv_reg.h> >> +#include "acpi_if.h" >> +#include "pcib_if.h" >> +#include "vmbus_if.h" >> + >> +static int vmbus_handle_intr_new(void *); >> + >> +void vmbus_handle_timer_intr1(struct vmbus_message *msg_base, >> + struct trapframe *frame); >> +void vmbus_synic_setup1(void *xsc); >> +void vmbus_synic_teardown1(void); >> +int vmbus_setup_intr1(struct vmbus_softc *sc); >> +void vmbus_intr_teardown1(struct vmbus_softc *sc); >> + >> +void >> +vmbus_handle_timer_intr1(struct vmbus_message *msg_base, >> + struct trapframe *frame) >> +{ >> + // do nothing for arm64, as we are using generic timer >> + return; >> +} >> + >> +static int >> +vmbus_handle_intr_new(void *arg) >> +{ >> + vmbus_handle_intr(NULL); >> + return (FILTER_HANDLED); >> +} >> + >> +void >> +vmbus_synic_setup1(void *xsc) >> +{ >> + return; >> +} >> + >> +void >> +vmbus_synic_teardown1(void) >> +{ >> + return; >> +} >> + >> +int >> +vmbus_setup_intr1(struct vmbus_softc *sc) >> +{ >> + int err; >> + struct intr_map_data_acpi *irq_data; >> + >> + sc->ires =3D = bus_alloc_resource_any(device_get_parent(sc->vmbus_dev), >> + SYS_RES_IRQ, &sc->vector, RF_ACTIVE | RF_SHAREABLE); >> + if (sc->ires =3D=3D NULL) { >> + device_printf(sc->vmbus_dev, "bus_alloc_resouce_any = failed\n"); >> + return (ENXIO); >> + } else { >> + device_printf(sc->vmbus_dev, "irq 0x%lx, vector %d end = 0x%lx\n", >> + (uint64_t)rman_get_start(sc->ires), sc->vector, >> + (uint64_t)rman_get_end(sc->ires)); >> + } >> + err =3D bus_setup_intr(sc->vmbus_dev, sc->ires, INTR_TYPE_MISC, >> + vmbus_handle_intr_new, NULL, sc, &sc->icookie); >> + if (err) { >> + device_printf(sc->vmbus_dev, "failed to setup IRQ %d\n", = err); >> + return (err); >> + } >> + irq_data =3D (struct intr_map_data_acpi = *)rman_get_virtual(sc->ires); >> + device_printf(sc->vmbus_dev, "the irq %u\n", irq_data->irq); >> + sc->vmbus_idtvec =3D irq_data->irq; >> + return 0; >> +} >> + >> +void >> +vmbus_intr_teardown1(struct vmbus_softc *sc) >> +{ >> + int cpu; >> + >> + sc->vmbus_idtvec =3D -1; >> + bus_teardown_intr(sc->vmbus_dev, sc->ires, sc->icookie); >> + >> + CPU_FOREACH(cpu) { >> + if (VMBUS_PCPU_GET(sc, event_tq, cpu) !=3D NULL) { >> + taskqueue_free(VMBUS_PCPU_GET(sc, event_tq, = cpu)); >> + VMBUS_PCPU_GET(sc, event_tq, cpu) =3D NULL; >> + } >> + if (VMBUS_PCPU_GET(sc, message_tq, cpu) !=3D NULL) { >> + taskqueue_drain(VMBUS_PCPU_GET(sc, message_tq, = cpu), >> + VMBUS_PCPU_PTR(sc, message_task, cpu)); >> + taskqueue_free(VMBUS_PCPU_GET(sc, message_tq, = cpu)); >> + VMBUS_PCPU_GET(sc, message_tq, cpu) =3D NULL; >> + } >> + } >> +} >> +/*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD >> + * Copyright (c) 2009-2012,2016-2017, 2022 Microsoft Corp. >> + * Copyright (c) 2012 NetApp Inc. >> + * Copyright (c) 2012 Citrix 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 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. >> + */ >> + >> +/* >> + * VM Bus Driver Implementation >> + */ >> + >> *** 125 LINES SKIPPED *** >>=20
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