From patchwork Thu Oct 3 19:51:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nuno Das Neves X-Patchwork-Id: 13821492 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2B206CF34C1 for ; Thu, 3 Oct 2024 19:59:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=3eNEPL2uGcbeg+sjLlLIfkzLDoXDRvmH3/b3uK9FRa4=; b=1WgF6sRqxthQS3O4vQ4Ke42p4S LxO9MCLe/83iZcufZNTxkfPPp5kP75QaVK/dNoRse59j4YQdilwpumF1vtV2PyJCH2pmcMoQlQUKI ot4q+JRgx39gE5+S79Zc1dg+1NVkF34+Mzv2osGHepdgF14SkNXndoA+KIgORLBTH+RoxeG2oqqac CsoOzQB6EvE5coHqEPUlNoDdwktY5WlqqP6WeaWqtnF2ABTL9nyd86uPFtXGIEufxYTKPt8qzaNgy 6+4m9mwtJU34Kvr63eG8DatOT9pH29ItM4RnvYeHiEX7shSKAM8ltklfcxSTIYXjp7CzsaHlM6bbJ cEErLK4Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1swRyT-0000000AFUf-2iaj; Thu, 03 Oct 2024 19:58:57 +0000 Received: from linux.microsoft.com ([13.77.154.182]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1swRqx-0000000AE8m-2STB for linux-arm-kernel@lists.infradead.org; Thu, 03 Oct 2024 19:51:21 +0000 Received: from linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net (linux.microsoft.com [13.77.154.182]) by linux.microsoft.com (Postfix) with ESMTPSA id 3924720DB360; Thu, 3 Oct 2024 12:51:10 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 3924720DB360 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1727985070; bh=3eNEPL2uGcbeg+sjLlLIfkzLDoXDRvmH3/b3uK9FRa4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=njph+iF+u9gV+8Y6AUkqYCmGX0yW3UKjjnH4xu+Zp2AGJZvMrmnMM6cBPE4tnp6PR YHG1yQcNDUeHFfaP50FzinVTOiWjtQQ9/XTEbfgFfD+08YX8vPyRyo2h7Uqp8xEb+q O82j5gVt76RZTztXP0V2xFvTRSBiYdojKjWBQo8k= From: Nuno Das Neves To: linux-hyperv@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, iommu@lists.linux.dev, netdev@vger.kernel.org, linux-pci@vger.kernel.org, linux-arch@vger.kernel.org, virtualization@lists.linux.dev Cc: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, catalin.marinas@arm.com, will@kernel.org, luto@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, seanjc@google.com, pbonzini@redhat.com, peterz@infradead.org, daniel.lezcano@linaro.org, joro@8bytes.org, robin.murphy@arm.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, arnd@arndb.de, sgarzare@redhat.com, jinankjain@linux.microsoft.com, muminulrussell@gmail.com, skinsburskii@linux.microsoft.com, mukeshrathor@microsoft.com Subject: [PATCH 3/5] hyperv: Add new Hyper-V headers Date: Thu, 3 Oct 2024 12:51:02 -0700 Message-Id: <1727985064-18362-4-git-send-email-nunodasneves@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1727985064-18362-1-git-send-email-nunodasneves@linux.microsoft.com> References: <1727985064-18362-1-git-send-email-nunodasneves@linux.microsoft.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241003_125111_797385_28515A87 X-CRM114-Status: GOOD ( 21.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add definitions needed for privileged Hyper-V partitions. These files are derived from headers exported from the hypervisor code. This is a step toward importing headers directly, similar to Xen public files in include/xen/interface/. Signed-off-by: Nuno Das Neves --- include/hyperv/hvgdk.h | 66 ++ include/hyperv/hvgdk_ext.h | 46 ++ include/hyperv/hvgdk_mini.h | 1212 +++++++++++++++++++++++++++++++++++ include/hyperv/hvhdk.h | 733 +++++++++++++++++++++ include/hyperv/hvhdk_mini.h | 310 +++++++++ 5 files changed, 2367 insertions(+) create mode 100644 include/hyperv/hvgdk.h create mode 100644 include/hyperv/hvgdk_ext.h create mode 100644 include/hyperv/hvgdk_mini.h create mode 100644 include/hyperv/hvhdk.h create mode 100644 include/hyperv/hvhdk_mini.h diff --git a/include/hyperv/hvgdk.h b/include/hyperv/hvgdk.h new file mode 100644 index 000000000000..af44e8034090 --- /dev/null +++ b/include/hyperv/hvgdk.h @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Type definitions for the Microsoft Hypervisor. + */ +#ifndef _HV_HVGDK_H +#define _HV_HVGDK_H + +#include "hvgdk_mini.h" +#include "hvgdk_ext.h" + +/* + * The guest OS needs to register the guest ID with the hypervisor. + * The guest ID is a 64 bit entity and the structure of this ID is + * specified in the Hyper-V TLFS specification. + * + * While the current guideline does not specify how Linux guest ID(s) + * need to be generated, our plan is to publish the guidelines for + * Linux and other guest operating systems that currently are hosted + * on Hyper-V. The implementation here conforms to this yet + * unpublished guidelines. + * + * Bit(s) + * 63 - Indicates if the OS is Open Source or not; 1 is Open Source + * 62:56 - Os Type; Linux is 0x100 + * 55:48 - Distro specific identification + * 47:16 - Linux kernel version number + * 15:0 - Distro specific identification + */ + +#define HV_LINUX_VENDOR_ID 0x8100 + +/* + * Hyper-V uses the software reserved 32 bytes in VMCB control area to expose + * SVM enlightenments to guests. This is documented in the TLFS doc. + * HV_VMX_ENLIGHTENED_VMCS or SVM_NESTED_ENLIGHTENED_VMCB_FIELDS + */ +struct hv_vmcb_enlightenments { + struct __packed hv_enlightenments_control { + u32 nested_flush_hypercall : 1; + u32 msr_bitmap : 1; + u32 enlightened_npt_tlb: 1; + u32 reserved : 29; + } __packed hv_enlightenments_control; + u32 hv_vp_id; + u64 hv_vm_id; + u64 partition_assist_page; + u64 reserved; +} __packed; + +/* Define connection identifier type. */ +union hv_connection_id { + u32 asu32; + struct { + u32 id : 24; + u32 reserved : 8; + } __packed u; +}; + +struct hv_input_unmap_gpa_pages { + u64 target_partition_id; + u64 target_gpa_base; + u32 unmap_flags; + u32 padding; +} __packed; + +#endif /* #ifndef _HV_HVGDK_H */ diff --git a/include/hyperv/hvgdk_ext.h b/include/hyperv/hvgdk_ext.h new file mode 100644 index 000000000000..641b591ee61f --- /dev/null +++ b/include/hyperv/hvgdk_ext.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Type definitions for the Microsoft Hypervisor. + */ +#ifndef _HV_HVGDK_EXT_H +#define _HV_HVGDK_EXT_H + +#include "hvgdk_mini.h" + +/* Extended hypercalls */ +#define HV_EXT_CALL_QUERY_CAPABILITIES 0x8001 +#define HV_EXT_CALL_MEMORY_HEAT_HINT 0x8003 + +/* Extended hypercalls */ +enum { /* HV_EXT_CALL */ + HV_EXTCALL_QUERY_CAPABILITIES = 0x8001, + HV_EXTCALL_MEMORY_HEAT_HINT = 0x8003, +}; + +/* HV_EXT_OUTPUT_QUERY_CAPABILITIES */ +#define HV_EXT_CAPABILITY_MEMORY_COLD_DISCARD_HINT BIT(8) + +enum { /* HV_EXT_MEMORY_HEAT_HINT_TYPE */ + HV_EXTMEM_HEAT_HINT_COLD = 0, + HV_EXTMEM_HEAT_HINT_HOT = 1, + HV_EXTMEM_HEAT_HINT_COLD_DISCARD = 2, + HV_EXTMEM_HEAT_HINT_MAX +}; + +/* + * The whole argument should fit in a page to be able to pass to the hypervisor + * in one hypercall. + */ +#define HV_MEMORY_HINT_MAX_GPA_PAGE_RANGES \ + ((HV_HYP_PAGE_SIZE - sizeof(struct hv_memory_hint)) / \ + sizeof(union hv_gpa_page_range)) + +/* HvExtCallMemoryHeatHint hypercall */ +#define HV_EXT_MEMORY_HEAT_HINT_TYPE_COLD_DISCARD 2 +struct hv_memory_hint { /* HV_EXT_INPUT_MEMORY_HEAT_HINT */ + u64 heat_type : 2; /* HV_EXTMEM_HEAT_HINT_* */ + u64 reserved : 62; + union hv_gpa_page_range ranges[]; +} __packed; + +#endif /* _HV_HVGDK_EXT_H */ diff --git a/include/hyperv/hvgdk_mini.h b/include/hyperv/hvgdk_mini.h new file mode 100644 index 000000000000..b7dd22784c96 --- /dev/null +++ b/include/hyperv/hvgdk_mini.h @@ -0,0 +1,1212 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Type definitions for the Microsoft hypervisor. + */ +#ifndef _HV_HVGDK_MINI_H +#define _HV_HVGDK_MINI_H + +#include +#include + +struct hv_u128 { + u64 low_part; + u64 high_part; +} __packed; + +/* NOTE: when adding below, update hv_status_to_string() */ +#define HV_STATUS_SUCCESS 0x0 +#define HV_STATUS_INVALID_HYPERCALL_CODE 0x2 +#define HV_STATUS_INVALID_HYPERCALL_INPUT 0x3 +#define HV_STATUS_INVALID_ALIGNMENT 0x4 +#define HV_STATUS_INVALID_PARAMETER 0x5 +#define HV_STATUS_ACCESS_DENIED 0x6 +#define HV_STATUS_INVALID_PARTITION_STATE 0x7 +#define HV_STATUS_OPERATION_DENIED 0x8 +#define HV_STATUS_UNKNOWN_PROPERTY 0x9 +#define HV_STATUS_PROPERTY_VALUE_OUT_OF_RANGE 0xA +#define HV_STATUS_INSUFFICIENT_MEMORY 0xB +#define HV_STATUS_INVALID_PARTITION_ID 0xD +#define HV_STATUS_INVALID_VP_INDEX 0xE +#define HV_STATUS_NOT_FOUND 0x10 +#define HV_STATUS_INVALID_PORT_ID 0x11 +#define HV_STATUS_INVALID_CONNECTION_ID 0x12 +#define HV_STATUS_INSUFFICIENT_BUFFERS 0x13 +#define HV_STATUS_NOT_ACKNOWLEDGED 0x14 +#define HV_STATUS_INVALID_VP_STATE 0x15 +#define HV_STATUS_NO_RESOURCES 0x1D +#define HV_STATUS_PROCESSOR_FEATURE_NOT_SUPPORTED 0x20 +#define HV_STATUS_INVALID_LP_INDEX 0x41 +#define HV_STATUS_INVALID_REGISTER_VALUE 0x50 +#define HV_STATUS_OPERATION_FAILED 0x71 +#define HV_STATUS_TIME_OUT 0x78 +#define HV_STATUS_CALL_PENDING 0x79 +#define HV_STATUS_VTL_ALREADY_ENABLED 0x86 + +/* + * The Hyper-V TimeRefCount register and the TSC + * page provide a guest VM clock with 100ns tick rate + */ +#define HV_CLOCK_HZ (NSEC_PER_SEC / 100) + +#define HV_HYP_PAGE_SHIFT 12 +#define HV_HYP_PAGE_SIZE BIT(HV_HYP_PAGE_SHIFT) +#define HV_HYP_PAGE_MASK (~(HV_HYP_PAGE_SIZE - 1)) + +#define HV_PARTITION_ID_INVALID ((u64)0) +#define HV_PARTITION_ID_SELF ((u64)-1) + +/* Hyper-V specific model specific registers (MSRs) */ + +#if defined(CONFIG_X86) +/* HV_X64_SYNTHETIC_MSR */ +#define HV_X64_MSR_GUEST_OS_ID 0x40000000 +#define HV_X64_MSR_HYPERCALL 0x40000001 +#define HV_X64_MSR_VP_INDEX 0x40000002 +#define HV_X64_MSR_RESET 0x40000003 +#define HV_X64_MSR_VP_RUNTIME 0x40000010 +#define HV_X64_MSR_TIME_REF_COUNT 0x40000020 +#define HV_X64_MSR_REFERENCE_TSC 0x40000021 +#define HV_X64_MSR_TSC_FREQUENCY 0x40000022 +#define HV_X64_MSR_APIC_FREQUENCY 0x40000023 + +/* Define the virtual APIC registers */ +#define HV_X64_MSR_EOI 0x40000070 +#define HV_X64_MSR_ICR 0x40000071 +#define HV_X64_MSR_TPR 0x40000072 +#define HV_X64_MSR_VP_ASSIST_PAGE 0x40000073 + +/* Note: derived, not in hvgdk_mini.h */ +#define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE 0x00000001 +#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT 12 +#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK \ + (~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1)) + +/* Define synthetic interrupt controller model specific registers. */ +#define HV_X64_MSR_SCONTROL 0x40000080 +#define HV_X64_MSR_SVERSION 0x40000081 +#define HV_X64_MSR_SIEFP 0x40000082 +#define HV_X64_MSR_SIMP 0x40000083 +#define HV_X64_MSR_EOM 0x40000084 +#define HV_X64_MSR_SIRBP 0x40000085 +#define HV_X64_MSR_SINT0 0x40000090 +#define HV_X64_MSR_SINT1 0x40000091 +#define HV_X64_MSR_SINT2 0x40000092 +#define HV_X64_MSR_SINT3 0x40000093 +#define HV_X64_MSR_SINT4 0x40000094 +#define HV_X64_MSR_SINT5 0x40000095 +#define HV_X64_MSR_SINT6 0x40000096 +#define HV_X64_MSR_SINT7 0x40000097 +#define HV_X64_MSR_SINT8 0x40000098 +#define HV_X64_MSR_SINT9 0x40000099 +#define HV_X64_MSR_SINT10 0x4000009A +#define HV_X64_MSR_SINT11 0x4000009B +#define HV_X64_MSR_SINT12 0x4000009C +#define HV_X64_MSR_SINT13 0x4000009D +#define HV_X64_MSR_SINT14 0x4000009E +#define HV_X64_MSR_SINT15 0x4000009F + +/* Define synthetic interrupt controller model specific registers for nested hypervisor */ +#define HV_X64_MSR_NESTED_SCONTROL 0x40001080 +#define HV_X64_MSR_NESTED_SVERSION 0x40001081 +#define HV_X64_MSR_NESTED_SIEFP 0x40001082 +#define HV_X64_MSR_NESTED_SIMP 0x40001083 +#define HV_X64_MSR_NESTED_EOM 0x40001084 +#define HV_X64_MSR_NESTED_SINT0 0x40001090 + +/* + * Synthetic Timer MSRs. Four timers per vcpu. + */ +#define HV_X64_MSR_STIMER0_CONFIG 0x400000B0 +#define HV_X64_MSR_STIMER0_COUNT 0x400000B1 +#define HV_X64_MSR_STIMER1_CONFIG 0x400000B2 +#define HV_X64_MSR_STIMER1_COUNT 0x400000B3 +#define HV_X64_MSR_STIMER2_CONFIG 0x400000B4 +#define HV_X64_MSR_STIMER2_COUNT 0x400000B5 +#define HV_X64_MSR_STIMER3_CONFIG 0x400000B6 +#define HV_X64_MSR_STIMER3_COUNT 0x400000B7 + +/* Hyper-V guest idle MSR */ +#define HV_X64_MSR_GUEST_IDLE 0x400000F0 + +/* Hyper-V guest crash notification MSR's */ +#define HV_X64_MSR_CRASH_P0 0x40000100 +#define HV_X64_MSR_CRASH_P1 0x40000101 +#define HV_X64_MSR_CRASH_P2 0x40000102 +#define HV_X64_MSR_CRASH_P3 0x40000103 +#define HV_X64_MSR_CRASH_P4 0x40000104 +#define HV_X64_MSR_CRASH_CTL 0x40000105 + +/* NOTE: derived, not in hvgdk_mini.h */ +#define HV_X64_MSR_CRASH_PARAMS \ + (1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0)) + +#define HV_IPI_LOW_VECTOR 0x10 +#define HV_IPI_HIGH_VECTOR 0xff + +struct hv_reenlightenment_control { + u64 vector : 8; + u64 reserved1 : 8; + u64 enabled : 1; + u64 reserved2 : 15; + u64 target_vp : 32; +} __packed; + +struct hv_tsc_emulation_status { /* HV_TSC_EMULATION_STATUS */ + u64 inprogress : 1; + u64 reserved : 63; +} __packed; + +struct hv_tsc_emulation_control { /* HV_TSC_INVARIANT_CONTROL */ + u64 enabled : 1; + u64 reserved : 63; +} __packed; + +/* TSC emulation after migration */ +#define HV_X64_MSR_REENLIGHTENMENT_CONTROL 0x40000106 +#define HV_X64_MSR_TSC_EMULATION_CONTROL 0x40000107 +#define HV_X64_MSR_TSC_EMULATION_STATUS 0x40000108 +#define HV_X64_MSR_TSC_INVARIANT_CONTROL 0x40000118 +#define HV_EXPOSE_INVARIANT_TSC BIT_ULL(0) + +#endif /* CONFIG_X86 */ + +struct hv_get_partition_id { /* HV_OUTPUT_GET_PARTITION_ID */ + u64 partition_id; +} __packed; + +/* HV_CRASH_CTL_REG_CONTENTS */ +#define HV_CRASH_CTL_CRASH_NOTIFY_MSG BIT_ULL(62) +#define HV_CRASH_CTL_CRASH_NOTIFY BIT_ULL(63) + +union hv_reference_tsc_msr { + u64 as_uint64; + struct { + u64 enable : 1; + u64 reserved : 11; + u64 pfn : 52; + } __packed; +}; + +/* The maximum number of sparse vCPU banks which can be encoded by 'struct hv_vpset' */ +#define HV_MAX_SPARSE_VCPU_BANKS (64) +/* The number of vCPUs in one sparse bank */ +#define HV_VCPUS_PER_SPARSE_BANK (64) + +/* Some of Hyper-V structs do not use hv_vpset where linux uses them */ +struct hv_vpset { /* HV_VP_SET */ + u64 format; + u64 valid_bank_mask; + u64 bank_contents[]; +} __packed; + +/* + * Version info reported by hypervisor + * Changed to a union for convenience + */ +union hv_hypervisor_version_info { + struct { + u32 build_number; + + u32 minor_version : 16; + u32 major_version : 16; + + u32 service_pack; + + u32 service_number : 24; + u32 service_branch : 8; + }; + struct { + u32 eax; + u32 ebx; + u32 ecx; + u32 edx; + }; +}; + +/* HV_CPUID_FUNCTION */ +#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS 0x40000000 +#define HYPERV_CPUID_INTERFACE 0x40000001 +#define HYPERV_CPUID_VERSION 0x40000002 +#define HYPERV_CPUID_FEATURES 0x40000003 +#define HYPERV_CPUID_ENLIGHTMENT_INFO 0x40000004 +#define HYPERV_CPUID_IMPLEMENT_LIMITS 0x40000005 +#define HYPERV_CPUID_CPU_MANAGEMENT_FEATURES 0x40000007 +#define HYPERV_CPUID_NESTED_FEATURES 0x4000000A +#define HYPERV_CPUID_ISOLATION_CONFIG 0x4000000C + +#define HYPERV_CPUID_VIRT_STACK_INTERFACE 0x40000081 +#define HYPERV_VS_INTERFACE_EAX_SIGNATURE 0x31235356 /* "VS#1" */ + +#define HYPERV_CPUID_VIRT_STACK_PROPERTIES 0x40000082 +/* Support for the extended IOAPIC RTE format */ +#define HYPERV_VS_PROPERTIES_EAX_EXTENDED_IOAPIC_RTE BIT(2) + +#define HYPERV_HYPERVISOR_PRESENT_BIT 0x80000000 +#define HYPERV_CPUID_MIN 0x40000005 +#define HYPERV_CPUID_MAX 0x4000ffff + +/* HV_PARTITION_PRIVILEGE_MASK */ +#define HV_MSR_VP_RUNTIME_AVAILABLE BIT(0) +#define HV_MSR_TIME_REF_COUNT_AVAILABLE BIT(1) +#define HV_MSR_SYNIC_AVAILABLE BIT(2) +#define HV_MSR_SYNTIMER_AVAILABLE BIT(3) +#define HV_MSR_APIC_ACCESS_AVAILABLE BIT(4) +#define HV_MSR_HYPERCALL_AVAILABLE BIT(5) +#define HV_MSR_VP_INDEX_AVAILABLE BIT(6) +#define HV_MSR_RESET_AVAILABLE BIT(7) +#define HV_MSR_STAT_PAGES_AVAILABLE BIT(8) +#define HV_MSR_REFERENCE_TSC_AVAILABLE BIT(9) +#define HV_MSR_GUEST_IDLE_AVAILABLE BIT(10) +#define HV_ACCESS_FREQUENCY_MSRS BIT(11) +#define HV_ACCESS_REENLIGHTENMENT BIT(13) +#define HV_ACCESS_TSC_INVARIANT BIT(15) + +/* HV_PARTITION_PRIVILEGE_MASK */ +#define HV_CREATE_PARTITIONS BIT(0) +#define HV_ACCESS_PARTITION_ID BIT(1) +#define HV_ACCESS_MEMORY_POOL BIT(2) +#define HV_ADJUST_MESSAGE_BUFFERS BIT(3) +#define HV_POST_MESSAGES BIT(4) +#define HV_SIGNAL_EVENTS BIT(5) +#define HV_CREATE_PORT BIT(6) +#define HV_CONNECT_PORT BIT(7) +#define HV_ACCESS_STATS BIT(8) +#define HV_DEBUGGING BIT(11) +#define HV_CPU_MANAGEMENT BIT(12) +#define HV_ENABLE_EXTENDED_HYPERCALLS BIT(20) +#define HV_ISOLATION BIT(22) + +#if defined(CONFIG_X86) +/* HV_X64_HYPERVISOR_FEATURES (EDX) */ +#define HV_X64_MWAIT_AVAILABLE BIT(0) +#define HV_X64_GUEST_DEBUGGING_AVAILABLE BIT(1) +#define HV_X64_PERF_MONITOR_AVAILABLE BIT(2) +#define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE BIT(3) +#define HV_X64_HYPERCALL_XMM_INPUT_AVAILABLE BIT(4) +#define HV_X64_GUEST_IDLE_STATE_AVAILABLE BIT(5) +#define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE BIT(8) +#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE BIT(10) +#define HV_FEATURE_DEBUG_MSRS_AVAILABLE BIT(11) +/* + * Support for returning hypercall output block via XMM + * registers is available + */ +#define HV_X64_HYPERCALL_XMM_OUTPUT_AVAILABLE BIT(15) +/* stimer Direct Mode is available */ +#define HV_STIMER_DIRECT_MODE_AVAILABLE BIT(19) + +/* HV_X64_ENLIGHTENMENT_INFORMATION */ +#define HV_X64_AS_SWITCH_RECOMMENDED BIT(0) +#define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED BIT(1) +#define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED BIT(2) +#define HV_X64_APIC_ACCESS_RECOMMENDED BIT(3) +#define HV_X64_SYSTEM_RESET_RECOMMENDED BIT(4) +#define HV_X64_RELAXED_TIMING_RECOMMENDED BIT(5) +#define HV_DEPRECATING_AEOI_RECOMMENDED BIT(9) +#define HV_X64_CLUSTER_IPI_RECOMMENDED BIT(10) +#define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED BIT(11) +#define HV_X64_HYPERV_NESTED BIT(12) +#define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED BIT(14) +#define HV_X64_USE_MMIO_HYPERCALLS BIT(21) + +/* HYPERV_CPUID_ISOLATION_CONFIG.EBX bits. */ +#define HV_ISOLATION_TYPE GENMASK(3, 0) +#define HV_SHARED_GPA_BOUNDARY_ACTIVE BIT(5) +#define HV_SHARED_GPA_BOUNDARY_BITS GENMASK(11, 6) + +/* HYPERV_CPUID_FEATURES.ECX bits. */ +#define HV_VP_DISPATCH_INTERRUPT_INJECTION_AVAILABLE BIT(9) +#define HV_VP_GHCB_ROOT_MAPPING_AVAILABLE BIT(10) + +enum hv_isolation_type { + HV_ISOLATION_TYPE_NONE = 0, /* HV_PARTITION_ISOLATION_TYPE_NONE */ + HV_ISOLATION_TYPE_VBS = 1, + HV_ISOLATION_TYPE_SNP = 2, + HV_ISOLATION_TYPE_TDX = 3 +}; + +union hv_x64_msr_hypercall_contents { + u64 as_uint64; + struct { + u64 enable : 1; + u64 reserved : 11; + u64 guest_physical_address : 52; + } __packed; +}; +#endif /* CONFIG_X86 */ + +#if defined(CONFIG_ARM64) +#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE BIT(8) +#define HV_STIMER_DIRECT_MODE_AVAILABLE BIT(13) +#endif /* CONFIG_ARM64 */ + +#if defined(CONFIG_X86) +#define HV_MAXIMUM_PROCESSORS 2048 +#elif defined(CONFIG_ARM64) /* CONFIG_X86 */ +#define HV_MAXIMUM_PROCESSORS 320 +#endif /* CONFIG_ARM64 */ + +#define HV_MAX_VP_INDEX (HV_MAXIMUM_PROCESSORS - 1) +#define HV_VP_INDEX_SELF ((u32)-2) +#define HV_ANY_VP ((u32)-1) + +union hv_vp_assist_msr_contents { /* HV_REGISTER_VP_ASSIST_PAGE */ + u64 as_uint64; + struct { + u64 enable : 1; + u64 reserved : 11; + u64 pfn : 52; + } __packed; +}; + +/* Declare the various hypercall operations. */ +/* HV_CALL_CODE */ +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE 0x0002 +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003 +#define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008 +#define HVCALL_SEND_IPI 0x000b +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013 +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX 0x0014 +#define HVCALL_SEND_IPI_EX 0x0015 +#define HVCALL_CREATE_PARTITION 0x0040 +#define HVCALL_INITIALIZE_PARTITION 0x0041 +#define HVCALL_FINALIZE_PARTITION 0x0042 +#define HVCALL_DELETE_PARTITION 0x0043 +#define HVCALL_GET_PARTITION_PROPERTY 0x0044 +#define HVCALL_SET_PARTITION_PROPERTY 0x0045 +#define HVCALL_GET_PARTITION_ID 0x0046 +#define HVCALL_DEPOSIT_MEMORY 0x0048 +#define HVCALL_WITHDRAW_MEMORY 0x0049 +#define HVCALL_MAP_GPA_PAGES 0x004b +#define HVCALL_UNMAP_GPA_PAGES 0x004c +#define HVCALL_CREATE_VP 0x004e +#define HVCALL_DELETE_VP 0x004f +#define HVCALL_GET_VP_REGISTERS 0x0050 +#define HVCALL_SET_VP_REGISTERS 0x0051 +#define HVCALL_DELETE_PORT 0x0058 +#define HVCALL_DISCONNECT_PORT 0x005b +#define HVCALL_POST_MESSAGE 0x005c +#define HVCALL_SIGNAL_EVENT 0x005d +#define HVCALL_POST_DEBUG_DATA 0x0069 +#define HVCALL_RETRIEVE_DEBUG_DATA 0x006a +#define HVCALL_RESET_DEBUG_SESSION 0x006b +#define HVCALL_ADD_LOGICAL_PROCESSOR 0x0076 +#define HVCALL_GET_SYSTEM_PROPERTY 0x007b +#define HVCALL_MAP_DEVICE_INTERRUPT 0x007c +#define HVCALL_UNMAP_DEVICE_INTERRUPT 0x007d +#define HVCALL_RETARGET_INTERRUPT 0x007e +#define HVCALL_NOTIFY_PORT_RING_EMPTY 0x008b +#define HVCALL_ASSERT_VIRTUAL_INTERRUPT 0x0094 +#define HVCALL_CREATE_PORT 0x0095 +#define HVCALL_CONNECT_PORT 0x0096 +#define HVCALL_START_VP 0x0099 +#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af +#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0 +#define HVCALL_DISPATCH_VP 0x00c2 +#define HVCALL_MODIFY_SPARSE_GPA_PAGE_HOST_VISIBILITY 0x00db +#define HVCALL_MAP_VP_STATE_PAGE 0x00e1 +#define HVCALL_UNMAP_VP_STATE_PAGE 0x00e2 +#define HVCALL_GET_VP_STATE 0x00e3 +#define HVCALL_SET_VP_STATE 0x00e4 +#define HVCALL_MMIO_READ 0x0106 +#define HVCALL_MMIO_WRITE 0x0107 + +/* HV_HYPERCALL_INPUT */ +#define HV_HYPERCALL_RESULT_MASK GENMASK_ULL(15, 0) +#define HV_HYPERCALL_FAST_BIT BIT(16) +#define HV_HYPERCALL_VARHEAD_OFFSET 17 +#define HV_HYPERCALL_NESTED BIT(31) +#define HV_HYPERCALL_REP_COMP_OFFSET 32 +#define HV_HYPERCALL_REP_COMP_1 BIT_ULL(32) +#define HV_HYPERCALL_REP_COMP_MASK GENMASK_ULL(43, 32) +#define HV_HYPERCALL_REP_START_OFFSET 48 +#define HV_HYPERCALL_REP_START_MASK GENMASK_ULL(59, 48) + +/* HvFlushGuestPhysicalAddressSpace hypercalls */ +struct hv_guest_mapping_flush { + u64 address_space; + u64 flags; +} __packed; + +/* + * HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited + * by the bitwidth of "additional_pages" in union hv_gpa_page_range. + */ +#define HV_MAX_FLUSH_PAGES (2048) +#define HV_GPA_PAGE_RANGE_PAGE_SIZE_2MB 0 +#define HV_GPA_PAGE_RANGE_PAGE_SIZE_1GB 1 + +#define HV_FLUSH_ALL_PROCESSORS BIT(0) +#define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) +#define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) +#define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3) + +/* HvFlushGuestPhysicalAddressList, HvExtCallMemoryHeatHint hypercall */ +union hv_gpa_page_range { + u64 address_space; + struct { + u64 additional_pages : 11; + u64 largepage : 1; + u64 basepfn : 52; + } page; + struct { + u64 reserved : 12; + u64 page_size : 1; + u64 reserved1 : 8; + u64 base_large_pfn : 43; + }; +}; + +/* + * All input flush parameters should be in single page. The max flush + * count is equal with how many entries of union hv_gpa_page_range can + * be populated into the input parameter page. + */ +#define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) / \ + sizeof(union hv_gpa_page_range)) + +struct hv_guest_mapping_flush_list { + u64 address_space; + u64 flags; + union hv_gpa_page_range gpa_list[HV_MAX_FLUSH_REP_COUNT]; +}; + +struct hv_tlb_flush { /* HV_INPUT_FLUSH_VIRTUAL_ADDRESS_LIST */ + u64 address_space; + u64 flags; + u64 processor_mask; + u64 gva_list[]; +} __packed; + +/* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */ +struct hv_tlb_flush_ex { + u64 address_space; + u64 flags; + struct hv_vpset hv_vp_set; + u64 gva_list[]; +} __packed; + +struct ms_hyperv_tsc_page { /* HV_REFERENCE_TSC_PAGE */ + volatile u32 tsc_sequence; + u32 reserved1; + volatile u64 tsc_scale; + volatile s64 tsc_offset; +} __packed; + +/* Define the number of synthetic interrupt sources. */ +#define HV_SYNIC_SINT_COUNT (16) + +/* Hyper-V defined statically assigned SINTs */ +#define HV_SYNIC_INTERCEPTION_SINT_INDEX 0x00000000 +#define HV_SYNIC_IOMMU_FAULT_SINT_INDEX 0x00000001 +#define HV_SYNIC_VMBUS_SINT_INDEX 0x00000002 +#define HV_SYNIC_FIRST_UNUSED_SINT_INDEX 0x00000005 + +/* mshv assigned SINT for doorbell */ +#define HV_SYNIC_DOORBELL_SINT_INDEX HV_SYNIC_FIRST_UNUSED_SINT_INDEX + +enum hv_interrupt_type { + HV_X64_INTERRUPT_TYPE_FIXED = 0x0000, + HV_X64_INTERRUPT_TYPE_LOWESTPRIORITY = 0x0001, + HV_X64_INTERRUPT_TYPE_SMI = 0x0002, + HV_X64_INTERRUPT_TYPE_REMOTEREAD = 0x0003, + HV_X64_INTERRUPT_TYPE_NMI = 0x0004, + HV_X64_INTERRUPT_TYPE_INIT = 0x0005, + HV_X64_INTERRUPT_TYPE_SIPI = 0x0006, + HV_X64_INTERRUPT_TYPE_EXTINT = 0x0007, + HV_X64_INTERRUPT_TYPE_LOCALINT0 = 0x0008, + HV_X64_INTERRUPT_TYPE_LOCALINT1 = 0x0009, + HV_X64_INTERRUPT_TYPE_MAXIMUM = 0x000A, +}; + +/* Define synthetic interrupt source. */ +union hv_synic_sint { + u64 as_uint64; + struct { + u64 vector : 8; + u64 reserved1 : 8; + u64 masked : 1; + u64 auto_eoi : 1; + u64 polling : 1; + u64 as_intercept : 1; + u64 proxy : 1; + u64 reserved2 : 43; + } __packed; +}; + +union hv_x64_xsave_xfem_register { + u64 as_uint64; + struct { + u32 low_uint32; + u32 high_uint32; + } __packed; + struct { + u64 legacy_x87 : 1; + u64 legacy_sse : 1; + u64 avx : 1; + u64 mpx_bndreg : 1; + u64 mpx_bndcsr : 1; + u64 avx_512_op_mask : 1; + u64 avx_512_zmmhi : 1; + u64 avx_512_zmm16_31 : 1; + u64 rsvd8_9 : 2; + u64 pasid : 1; + u64 cet_u : 1; + u64 cet_s : 1; + u64 rsvd13_16 : 4; + u64 xtile_cfg : 1; + u64 xtile_data : 1; + u64 rsvd19_63 : 45; + } __packed; +}; + +/* Synthetic timer configuration */ +union hv_stimer_config { /* HV_X64_MSR_STIMER_CONFIG_CONTENTS */ + u64 as_uint64; + struct { + u64 enable : 1; + u64 periodic : 1; + u64 lazy : 1; + u64 auto_enable : 1; + u64 apic_vector : 8; + u64 direct_mode : 1; + u64 reserved_z0 : 3; + u64 sintx : 4; + u64 reserved_z1 : 44; + } __packed; +}; + +/* Define the number of synthetic timers */ +#define HV_SYNIC_STIMER_COUNT (4) + +/* Define port identifier type. */ +union hv_port_id { + u32 asu32; + struct { + u32 id : 24; + u32 reserved : 8; + } __packed u; +}; + +#define HV_MESSAGE_SIZE (256) +#define HV_MESSAGE_PAYLOAD_BYTE_COUNT (240) +#define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30) + +/* Define hypervisor message types. */ +enum hv_message_type { + HVMSG_NONE = 0x00000000, + + /* Memory access messages. */ + HVMSG_UNMAPPED_GPA = 0x80000000, + HVMSG_GPA_INTERCEPT = 0x80000001, + + /* Timer notification messages. */ + HVMSG_TIMER_EXPIRED = 0x80000010, + + /* Error messages. */ + HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020, + HVMSG_UNRECOVERABLE_EXCEPTION = 0x80000021, + HVMSG_UNSUPPORTED_FEATURE = 0x80000022, + + /* + * Opaque intercept message. The original intercept message is only + * accessible from the mapped intercept message page. + */ + HVMSG_OPAQUE_INTERCEPT = 0x8000003F, + + /* Trace buffer complete messages. */ + HVMSG_EVENTLOG_BUFFERCOMPLETE = 0x80000040, + + /* Hypercall intercept */ + HVMSG_HYPERCALL_INTERCEPT = 0x80000050, + + /* SynIC intercepts */ + HVMSG_SYNIC_EVENT_INTERCEPT = 0x80000060, + HVMSG_SYNIC_SINT_INTERCEPT = 0x80000061, + HVMSG_SYNIC_SINT_DELIVERABLE = 0x80000062, + + /* Async call completion intercept */ + HVMSG_ASYNC_CALL_COMPLETION = 0x80000070, + + /* Root scheduler messages */ + HVMSG_SCHEDULER_VP_SIGNAL_BITSET = 0x80000100, + HVMSG_SCHEDULER_VP_SIGNAL_PAIR = 0x80000101, + + /* Platform-specific processor intercept messages. */ + HVMSG_X64_IO_PORT_INTERCEPT = 0x80010000, + HVMSG_X64_MSR_INTERCEPT = 0x80010001, + HVMSG_X64_CPUID_INTERCEPT = 0x80010002, + HVMSG_X64_EXCEPTION_INTERCEPT = 0x80010003, + HVMSG_X64_APIC_EOI = 0x80010004, + HVMSG_X64_LEGACY_FP_ERROR = 0x80010005, + HVMSG_X64_IOMMU_PRQ = 0x80010006, + HVMSG_X64_HALT = 0x80010007, + HVMSG_X64_INTERRUPTION_DELIVERABLE = 0x80010008, + HVMSG_X64_SIPI_INTERCEPT = 0x80010009, +}; + +/* Define the format of the SIMP register */ +union hv_synic_simp { + u64 as_uint64; + struct { + u64 simp_enabled : 1; + u64 preserved : 11; + u64 base_simp_gpa : 52; + } __packed; +}; + +union hv_message_flags { + u8 asu8; + struct { + u8 msg_pending : 1; + u8 reserved : 7; + } __packed; +}; + +struct hv_message_header { + u32 message_type; + u8 payload_size; + union hv_message_flags message_flags; + u8 reserved[2]; + union { + u64 sender; + union hv_port_id port; + }; +} __packed; + +/* + * Message format for notifications delivered via + * intercept message(as_intercept=1) + */ +struct hv_notification_message_payload { + u32 sint_index; +} __packed; + +struct hv_message { + struct hv_message_header header; + union { + u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT]; + } u; +} __packed; + +/* Define the synthetic interrupt message page layout. */ +struct hv_message_page { + struct hv_message sint_message[HV_SYNIC_SINT_COUNT]; +} __packed; + +struct hv_x64_segment_register { + u64 base; + u32 limit; + u16 selector; + union { + struct { + u16 segment_type : 4; + u16 non_system_segment : 1; + u16 descriptor_privilege_level : 2; + u16 present : 1; + u16 reserved : 4; + u16 available : 1; + u16 _long : 1; + u16 _default : 1; + u16 granularity : 1; + } __packed; + u16 attributes; + }; +} __packed; + +struct hv_x64_table_register { + u16 pad[3]; + u16 limit; + u64 base; +} __packed; + +union hv_input_vtl { + u8 as_uint8; + struct { + u8 target_vtl : 4; + u8 use_target_vtl : 1; + u8 reserved_z : 3; + }; +} __packed; + +struct hv_init_vp_context { + u64 rip; + u64 rsp; + u64 rflags; + + struct hv_x64_segment_register cs; + struct hv_x64_segment_register ds; + struct hv_x64_segment_register es; + struct hv_x64_segment_register fs; + struct hv_x64_segment_register gs; + struct hv_x64_segment_register ss; + struct hv_x64_segment_register tr; + struct hv_x64_segment_register ldtr; + + struct hv_x64_table_register idtr; + struct hv_x64_table_register gdtr; + + u64 efer; + u64 cr0; + u64 cr3; + u64 cr4; + u64 msr_cr_pat; +} __packed; + +struct hv_enable_vp_vtl { + u64 partition_id; + u32 vp_index; + union hv_input_vtl target_vtl; + u8 mbz0; + u16 mbz1; + struct hv_init_vp_context vp_context; +} __packed; + +struct hv_nested_enlightenments_control { + struct { + u32 directhypercall : 1; + u32 reserved : 31; + } __packed features; + struct { + u32 inter_partition_comm : 1; + u32 reserved : 31; + } __packed hypercall_controls; +} __packed; + +/* Define virtual processor assist page structure. */ +struct hv_vp_assist_page { + u32 apic_assist; + u32 reserved1; + u32 vtl_entry_reason; + u32 vtl_reserved; + u64 vtl_ret_x64rax; + u64 vtl_ret_x64rcx; + struct hv_nested_enlightenments_control nested_control; + u8 enlighten_vmentry; + u8 reserved2[7]; + u64 current_nested_vmcs; + u8 synthetic_time_unhalted_timer_expired; + u8 reserved3[7]; + u8 virtualization_fault_information[40]; + u8 reserved4[8]; + u8 intercept_message[256]; + u8 vtl_ret_actions[256]; +} __packed; + +enum hv_register_name { + /* Suspend Registers */ + HV_REGISTER_EXPLICIT_SUSPEND = 0x00000000, + HV_REGISTER_INTERCEPT_SUSPEND = 0x00000001, + HV_REGISTER_DISPATCH_SUSPEND = 0x00000003, + + /* Version - 128-bit result same as CPUID 0x40000002 */ + HV_REGISTER_HYPERVISOR_VERSION = 0x00000100, + + /* Feature Access (registers are 128 bits) - same as CPUID 0x40000003 - 0x4000000B */ + HV_REGISTER_PRIVILEGES_AND_FEATURES_INFO = 0x00000200, + HV_REGISTER_FEATURES_INFO = 0x00000201, + HV_REGISTER_IMPLEMENTATION_LIMITS_INFO = 0x00000202, + HV_REGISTER_HARDWARE_FEATURES_INFO = 0x00000203, + HV_REGISTER_CPU_MANAGEMENT_FEATURES_INFO = 0x00000204, + HV_REGISTER_SVM_FEATURES_INFO = 0x00000205, + HV_REGISTER_SKIP_LEVEL_FEATURES_INFO = 0x00000206, + HV_REGISTER_NESTED_VIRT_FEATURES_INFO = 0x00000207, + HV_REGISTER_IPT_FEATURES_INFO = 0x00000208, + + /* Guest Crash Registers */ + HV_REGISTER_GUEST_CRASH_P0 = 0x00000210, + HV_REGISTER_GUEST_CRASH_P1 = 0x00000211, + HV_REGISTER_GUEST_CRASH_P2 = 0x00000212, + HV_REGISTER_GUEST_CRASH_P3 = 0x00000213, + HV_REGISTER_GUEST_CRASH_P4 = 0x00000214, + HV_REGISTER_GUEST_CRASH_CTL = 0x00000215, + + /* Misc */ + HV_REGISTER_VP_RUNTIME = 0x00090000, + HV_REGISTER_GUEST_OS_ID = 0x00090002, + HV_REGISTER_VP_INDEX = 0x00090003, + HV_REGISTER_TIME_REF_COUNT = 0x00090004, + HV_REGISTER_CPU_MANAGEMENT_VERSION = 0x00090007, + HV_REGISTER_VP_ASSIST_PAGE = 0x00090013, + HV_REGISTER_VP_ROOT_SIGNAL_COUNT = 0x00090014, + HV_REGISTER_REFERENCE_TSC = 0x00090017, + + /* Hypervisor-defined Registers (Synic) */ + HV_REGISTER_SINT0 = 0x000A0000, + HV_REGISTER_SINT1 = 0x000A0001, + HV_REGISTER_SINT2 = 0x000A0002, + HV_REGISTER_SINT3 = 0x000A0003, + HV_REGISTER_SINT4 = 0x000A0004, + HV_REGISTER_SINT5 = 0x000A0005, + HV_REGISTER_SINT6 = 0x000A0006, + HV_REGISTER_SINT7 = 0x000A0007, + HV_REGISTER_SINT8 = 0x000A0008, + HV_REGISTER_SINT9 = 0x000A0009, + HV_REGISTER_SINT10 = 0x000A000A, + HV_REGISTER_SINT11 = 0x000A000B, + HV_REGISTER_SINT12 = 0x000A000C, + HV_REGISTER_SINT13 = 0x000A000D, + HV_REGISTER_SINT14 = 0x000A000E, + HV_REGISTER_SINT15 = 0x000A000F, + HV_REGISTER_SCONTROL = 0x000A0010, + HV_REGISTER_SVERSION = 0x000A0011, + HV_REGISTER_SIEFP = 0x000A0012, + HV_REGISTER_SIMP = 0x000A0013, + HV_REGISTER_EOM = 0x000A0014, + HV_REGISTER_SIRBP = 0x000A0015, + + HV_REGISTER_NESTED_SINT0 = 0x000A1000, + HV_REGISTER_NESTED_SINT1 = 0x000A1001, + HV_REGISTER_NESTED_SINT2 = 0x000A1002, + HV_REGISTER_NESTED_SINT3 = 0x000A1003, + HV_REGISTER_NESTED_SINT4 = 0x000A1004, + HV_REGISTER_NESTED_SINT5 = 0x000A1005, + HV_REGISTER_NESTED_SINT6 = 0x000A1006, + HV_REGISTER_NESTED_SINT7 = 0x000A1007, + HV_REGISTER_NESTED_SINT8 = 0x000A1008, + HV_REGISTER_NESTED_SINT9 = 0x000A1009, + HV_REGISTER_NESTED_SINT10 = 0x000A100A, + HV_REGISTER_NESTED_SINT11 = 0x000A100B, + HV_REGISTER_NESTED_SINT12 = 0x000A100C, + HV_REGISTER_NESTED_SINT13 = 0x000A100D, + HV_REGISTER_NESTED_SINT14 = 0x000A100E, + HV_REGISTER_NESTED_SINT15 = 0x000A100F, + HV_REGISTER_NESTED_SCONTROL = 0x000A1010, + HV_REGISTER_NESTED_SVERSION = 0x000A1011, + HV_REGISTER_NESTED_SIFP = 0x000A1012, + HV_REGISTER_NESTED_SIPP = 0x000A1013, + HV_REGISTER_NESTED_EOM = 0x000A1014, + HV_REGISTER_NESTED_SIRBP = 0x000a1015, + + /* Hypervisor-defined Registers (Synthetic Timers) */ + HV_REGISTER_STIMER0_CONFIG = 0x000B0000, + HV_REGISTER_STIMER0_COUNT = 0x000B0001, + + /* VSM */ + HV_X64_REGISTER_VSM_VP_STATUS = 0x000D0003, +}; + +/* + * Arch compatibility regs for use with hv_set/get_register + */ +#if defined(CONFIG_X86) + +/* + * To support arch-generic code calling hv_set/get_register: + * - On x86, HV_MSR_ indicates an MSR accessed via rdmsrl/wrmsrl + * - On ARM, HV_MSR_ indicates a VP register accessed via hypercall + */ +#define HV_MSR_CRASH_P0 (HV_X64_MSR_CRASH_P0) +#define HV_MSR_CRASH_P1 (HV_X64_MSR_CRASH_P1) +#define HV_MSR_CRASH_P2 (HV_X64_MSR_CRASH_P2) +#define HV_MSR_CRASH_P3 (HV_X64_MSR_CRASH_P3) +#define HV_MSR_CRASH_P4 (HV_X64_MSR_CRASH_P4) +#define HV_MSR_CRASH_CTL (HV_X64_MSR_CRASH_CTL) + +#define HV_MSR_VP_INDEX (HV_X64_MSR_VP_INDEX) +#define HV_MSR_TIME_REF_COUNT (HV_X64_MSR_TIME_REF_COUNT) +#define HV_MSR_REFERENCE_TSC (HV_X64_MSR_REFERENCE_TSC) + +#define HV_MSR_SINT0 (HV_X64_MSR_SINT0) +#define HV_MSR_SVERSION (HV_X64_MSR_SVERSION) +#define HV_MSR_SCONTROL (HV_X64_MSR_SCONTROL) +#define HV_MSR_SIEFP (HV_X64_MSR_SIEFP) +#define HV_MSR_SIMP (HV_X64_MSR_SIMP) +#define HV_MSR_EOM (HV_X64_MSR_EOM) +#define HV_MSR_SIRBP (HV_X64_MSR_SIRBP) + +#define HV_MSR_NESTED_SCONTROL (HV_X64_MSR_NESTED_SCONTROL) +#define HV_MSR_NESTED_SVERSION (HV_X64_MSR_NESTED_SVERSION) +#define HV_MSR_NESTED_SIEFP (HV_X64_MSR_NESTED_SIEFP) +#define HV_MSR_NESTED_SIMP (HV_X64_MSR_NESTED_SIMP) +#define HV_MSR_NESTED_EOM (HV_X64_MSR_NESTED_EOM) +#define HV_MSR_NESTED_SINT0 (HV_X64_MSR_NESTED_SINT0) + +#define HV_MSR_STIMER0_CONFIG (HV_X64_MSR_STIMER0_CONFIG) +#define HV_MSR_STIMER0_COUNT (HV_X64_MSR_STIMER0_COUNT) + +#elif defined(CONFIG_ARM64) /* CONFIG_X86 */ + +#define HV_MSR_CRASH_P0 (HV_REGISTER_GUEST_CRASH_P0) +#define HV_MSR_CRASH_P1 (HV_REGISTER_GUEST_CRASH_P1) +#define HV_MSR_CRASH_P2 (HV_REGISTER_GUEST_CRASH_P2) +#define HV_MSR_CRASH_P3 (HV_REGISTER_GUEST_CRASH_P3) +#define HV_MSR_CRASH_P4 (HV_REGISTER_GUEST_CRASH_P4) +#define HV_MSR_CRASH_CTL (HV_REGISTER_GUEST_CRASH_CTL) + +#define HV_MSR_VP_INDEX (HV_REGISTER_VP_INDEX) +#define HV_MSR_TIME_REF_COUNT (HV_REGISTER_TIME_REF_COUNT) +#define HV_MSR_REFERENCE_TSC (HV_REGISTER_REFERENCE_TSC) + +#define HV_MSR_SINT0 (HV_REGISTER_SINT0) +#define HV_MSR_SCONTROL (HV_REGISTER_SCONTROL) +#define HV_MSR_SIEFP (HV_REGISTER_SIEFP) +#define HV_MSR_SIMP (HV_REGISTER_SIMP) +#define HV_MSR_EOM (HV_REGISTER_EOM) +#define HV_MSR_SIRBP (HV_REGISTER_SIRBP) + +#define HV_MSR_STIMER0_CONFIG (HV_REGISTER_STIMER0_CONFIG) +#define HV_MSR_STIMER0_COUNT (HV_REGISTER_STIMER0_COUNT) + +#endif /* CONFIG_ARM64 */ + +union hv_explicit_suspend_register { + u64 as_uint64; + struct { + u64 suspended : 1; + u64 reserved : 63; + } __packed; +}; + +union hv_intercept_suspend_register { + u64 as_uint64; + struct { + u64 suspended : 1; + u64 reserved : 63; + } __packed; +}; + +union hv_dispatch_suspend_register { + u64 as_uint64; + struct { + u64 suspended : 1; + u64 reserved : 63; + } __packed; +}; + +union hv_x64_interrupt_state_register { + u64 as_uint64; + struct { + u64 interrupt_shadow : 1; + u64 nmi_masked : 1; + u64 reserved : 62; + } __packed; +}; + +union hv_x64_pending_interruption_register { + u64 as_uint64; + struct { + u32 interruption_pending : 1; + u32 interruption_type : 3; + u32 deliver_error_code : 1; + u32 instruction_length : 4; + u32 nested_event : 1; + u32 reserved : 6; + u32 interruption_vector : 16; + u32 error_code; + } __packed; +}; + +union hv_register_value { + struct hv_u128 reg128; + u64 reg64; + u32 reg32; + u16 reg16; + u8 reg8; + + struct hv_x64_segment_register segment; + struct hv_x64_table_register table; + union hv_explicit_suspend_register explicit_suspend; + union hv_intercept_suspend_register intercept_suspend; + union hv_dispatch_suspend_register dispatch_suspend; + union hv_x64_interrupt_state_register interrupt_state; + union hv_x64_pending_interruption_register pending_interruption; +}; + +#if defined(CONFIG_ARM64) +/* HvGetVpRegisters returns an array of these output elements */ +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; + }; +}; + +#endif /* CONFIG_ARM64 */ + +struct hv_register_assoc { + u32 name; /* enum hv_register_name */ + u32 reserved1; + u64 reserved2; + union hv_register_value value; +} __packed; + +struct hv_input_get_vp_registers { + u64 partition_id; + u32 vp_index; + union hv_input_vtl input_vtl; + u8 rsvd_z8; + u16 rsvd_z16; + u32 names[]; +} __packed; + +struct hv_input_set_vp_registers { + u64 partition_id; + u32 vp_index; + union hv_input_vtl input_vtl; + u8 rsvd_z8; + u16 rsvd_z16; + struct hv_register_assoc elements[]; +} __packed; + +#define HV_UNMAP_GPA_LARGE_PAGE 0x2 + +/* HvCallSendSyntheticClusterIpi hypercall */ +struct hv_send_ipi { /* HV_INPUT_SEND_SYNTHETIC_CLUSTER_IPI */ + u32 vector; + u32 reserved; + u64 cpu_mask; +} __packed; + +#define HV_X64_VTL_MASK GENMASK(3, 0) + +/* Hyper-V memory host visibility */ +enum hv_mem_host_visibility { + VMBUS_PAGE_NOT_VISIBLE = 0, + VMBUS_PAGE_VISIBLE_READ_ONLY = 1, + VMBUS_PAGE_VISIBLE_READ_WRITE = 3 +}; + +/* HvCallModifySparseGpaPageHostVisibility hypercall */ +#define HV_MAX_MODIFY_GPA_REP_COUNT ((PAGE_SIZE / sizeof(u64)) - 2) +struct hv_gpa_range_for_visibility { + u64 partition_id; + u32 host_visibility : 2; + u32 reserved0 : 30; + u32 reserved1; + u64 gpa_page_list[HV_MAX_MODIFY_GPA_REP_COUNT]; +} __packed; + +#if defined(CONFIG_X86) +union hv_msi_address_register { /* HV_MSI_ADDRESS */ + u32 as_uint32; + struct { + u32 reserved1 : 2; + u32 destination_mode : 1; + u32 redirection_hint : 1; + u32 reserved2 : 8; + u32 destination_id : 8; + u32 msi_base : 12; + }; +} __packed; + +union hv_msi_data_register { /* HV_MSI_ENTRY.Data */ + u32 as_uint32; + struct { + u32 vector : 8; + u32 delivery_mode : 3; + u32 reserved1 : 3; + u32 level_assert : 1; + u32 trigger_mode : 1; + u32 reserved2 : 16; + }; +} __packed; + +union hv_msi_entry { /* HV_MSI_ENTRY */ + + u64 as_uint64; + struct { + union hv_msi_address_register address; + union hv_msi_data_register data; + } __packed; +}; + +#elif defined(CONFIG_ARM64) /* CONFIG_X86 */ + +union hv_msi_entry { + u64 as_uint64[2]; + struct { + u64 address; + u32 data; + u32 reserved; + } __packed; +}; +#endif /* CONFIG_ARM64 */ + +union hv_ioapic_rte { + u64 as_uint64; + + struct { + u32 vector : 8; + u32 delivery_mode : 3; + u32 destination_mode : 1; + u32 delivery_status : 1; + u32 interrupt_polarity : 1; + u32 remote_irr : 1; + u32 trigger_mode : 1; + u32 interrupt_mask : 1; + u32 reserved1 : 15; + + u32 reserved2 : 24; + u32 destination_id : 8; + }; + + struct { + u32 low_uint32; + u32 high_uint32; + }; +} __packed; + +enum hv_interrupt_source { /* HV_INTERRUPT_SOURCE */ + HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */ + HV_INTERRUPT_SOURCE_IOAPIC, +}; + +struct hv_interrupt_entry { /* HV_INTERRUPT_ENTRY */ + u32 source; + u32 reserved1; + union { + union hv_msi_entry msi_entry; + union hv_ioapic_rte ioapic_rte; + }; +} __packed; + +#define HV_DEVICE_INTERRUPT_TARGET_MULTICAST 1 +#define HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET 2 + +struct hv_device_interrupt_target { /* HV_DEVICE_INTERRUPT_TARGET */ + u32 vector; + u32 flags; /* HV_DEVICE_INTERRUPT_TARGET_* above */ + union { + u64 vp_mask; + struct hv_vpset vp_set; + }; +} __packed; + +struct hv_retarget_device_interrupt { /* HV_INPUT_RETARGET_DEVICE_INTERRUPT */ + u64 partition_id; /* use "self" */ + u64 device_id; + struct hv_interrupt_entry int_entry; + u64 reserved2; + struct hv_device_interrupt_target int_target; +} __packed __aligned(8); + +/* Data structures for HVCALL_MMIO_READ and HVCALL_MMIO_WRITE */ +#define HV_HYPERCALL_MMIO_MAX_DATA_LENGTH 64 + +struct hv_mmio_read_input { /* HV_INPUT_MEMORY_MAPPED_IO_READ */ + u64 gpa; + u32 size; + u32 reserved; +} __packed; + +struct hv_mmio_read_output { + u8 data[HV_HYPERCALL_MMIO_MAX_DATA_LENGTH]; +} __packed; + +struct hv_mmio_write_input { + u64 gpa; + u32 size; + u32 reserved; + u8 data[HV_HYPERCALL_MMIO_MAX_DATA_LENGTH]; +} __packed; + +#endif /* _HV_HVGDK_MINI_H */ diff --git a/include/hyperv/hvhdk.h b/include/hyperv/hvhdk.h new file mode 100644 index 000000000000..64407c2a3809 --- /dev/null +++ b/include/hyperv/hvhdk.h @@ -0,0 +1,733 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Type definitions for the Microsoft hypervisor. + */ +#ifndef _HV_HVHDK_H +#define _HV_HVHDK_H + +#include + +#include "hvhdk_mini.h" +#include "hvgdk.h" + +/* Bits for dirty mask of hv_vp_register_page */ +#define HV_X64_REGISTER_CLASS_GENERAL 0 +#define HV_X64_REGISTER_CLASS_IP 1 +#define HV_X64_REGISTER_CLASS_XMM 2 +#define HV_X64_REGISTER_CLASS_SEGMENT 3 +#define HV_X64_REGISTER_CLASS_FLAGS 4 + +#define HV_VP_REGISTER_PAGE_VERSION_1 1u + +struct hv_vp_register_page { + u16 version; + u8 isvalid; + u8 rsvdz; + u32 dirty; + union { + struct { + /* General purpose registers + * (HV_X64_REGISTER_CLASS_GENERAL) + */ + union { + struct { + u64 rax; + u64 rcx; + u64 rdx; + u64 rbx; + u64 rsp; + u64 rbp; + u64 rsi; + u64 rdi; + u64 r8; + u64 r9; + u64 r10; + u64 r11; + u64 r12; + u64 r13; + u64 r14; + u64 r15; + } __packed; + + u64 gp_registers[16]; + }; + /* Instruction pointer (HV_X64_REGISTER_CLASS_IP) */ + u64 rip; + /* Flags (HV_X64_REGISTER_CLASS_FLAGS) */ + u64 rflags; + } __packed; + + u64 registers[18]; + }; + /* Volatile XMM registers (HV_X64_REGISTER_CLASS_XMM) */ + union { + struct { + struct hv_u128 xmm0; + struct hv_u128 xmm1; + struct hv_u128 xmm2; + struct hv_u128 xmm3; + struct hv_u128 xmm4; + struct hv_u128 xmm5; + } __packed; + + struct hv_u128 xmm_registers[6]; + }; + /* Segment registers (HV_X64_REGISTER_CLASS_SEGMENT) */ + union { + struct { + struct hv_x64_segment_register es; + struct hv_x64_segment_register cs; + struct hv_x64_segment_register ss; + struct hv_x64_segment_register ds; + struct hv_x64_segment_register fs; + struct hv_x64_segment_register gs; + } __packed; + + struct hv_x64_segment_register segment_registers[6]; + }; + /* Misc. control registers (cannot be set via this interface) */ + u64 cr0; + u64 cr3; + u64 cr4; + u64 cr8; + u64 efer; + u64 dr7; + union hv_x64_pending_interruption_register pending_interruption; + union hv_x64_interrupt_state_register interrupt_state; + u64 instruction_emulation_hints; +} __packed; + +#define HV_PARTITION_PROCESSOR_FEATURES_BANKS 2 + +union hv_partition_processor_features { + u64 as_uint64[HV_PARTITION_PROCESSOR_FEATURES_BANKS]; + struct { + u64 sse3_support : 1; + u64 lahf_sahf_support : 1; + u64 ssse3_support : 1; + u64 sse4_1_support : 1; + u64 sse4_2_support : 1; + u64 sse4a_support : 1; + u64 xop_support : 1; + u64 pop_cnt_support : 1; + u64 cmpxchg16b_support : 1; + u64 altmovcr8_support : 1; + u64 lzcnt_support : 1; + u64 mis_align_sse_support : 1; + u64 mmx_ext_support : 1; + u64 amd3dnow_support : 1; + u64 extended_amd3dnow_support : 1; + u64 page_1gb_support : 1; + u64 aes_support : 1; + u64 pclmulqdq_support : 1; + u64 pcid_support : 1; + u64 fma4_support : 1; + u64 f16c_support : 1; + u64 rd_rand_support : 1; + u64 rd_wr_fs_gs_support : 1; + u64 smep_support : 1; + u64 enhanced_fast_string_support : 1; + u64 bmi1_support : 1; + u64 bmi2_support : 1; + u64 hle_support_deprecated : 1; + u64 rtm_support_deprecated : 1; + u64 movbe_support : 1; + u64 npiep1_support : 1; + u64 dep_x87_fpu_save_support : 1; + u64 rd_seed_support : 1; + u64 adx_support : 1; + u64 intel_prefetch_support : 1; + u64 smap_support : 1; + u64 hle_support : 1; + u64 rtm_support : 1; + u64 rdtscp_support : 1; + u64 clflushopt_support : 1; + u64 clwb_support : 1; + u64 sha_support : 1; + u64 x87_pointers_saved_support : 1; + u64 invpcid_support : 1; + u64 ibrs_support : 1; + u64 stibp_support : 1; + u64 ibpb_support: 1; + u64 unrestricted_guest_support : 1; + u64 mdd_support : 1; + u64 fast_short_rep_mov_support : 1; + u64 l1dcache_flush_support : 1; + u64 rdcl_no_support : 1; + u64 ibrs_all_support : 1; + u64 skip_l1df_support : 1; + u64 ssb_no_support : 1; + u64 rsb_a_no_support : 1; + u64 virt_spec_ctrl_support : 1; + u64 rd_pid_support : 1; + u64 umip_support : 1; + u64 mbs_no_support : 1; + u64 mb_clear_support : 1; + u64 taa_no_support : 1; + u64 tsx_ctrl_support : 1; + /* + * N.B. The final processor feature bit in bank 0 is reserved to + * simplify potential downlevel backports. + */ + u64 reserved_bank0 : 1; + + /* N.B. Begin bank 1 processor features. */ + u64 acount_mcount_support : 1; + u64 tsc_invariant_support : 1; + u64 cl_zero_support : 1; + u64 rdpru_support : 1; + u64 la57_support : 1; + u64 mbec_support : 1; + u64 nested_virt_support : 1; + u64 psfd_support : 1; + u64 cet_ss_support : 1; + u64 cet_ibt_support : 1; + u64 vmx_exception_inject_support : 1; + u64 enqcmd_support : 1; + u64 umwait_tpause_support : 1; + u64 movdiri_support : 1; + u64 movdir64b_support : 1; + u64 cldemote_support : 1; + u64 serialize_support : 1; + u64 tsc_deadline_tmr_support : 1; + u64 tsc_adjust_support : 1; + u64 fzlrep_movsb : 1; + u64 fsrep_stosb : 1; + u64 fsrep_cmpsb : 1; + u64 reserved_bank1 : 42; + } __packed; +}; + +union hv_partition_processor_xsave_features { + struct { + u64 xsave_support : 1; + u64 xsaveopt_support : 1; + u64 avx_support : 1; + u64 reserved1 : 61; + } __packed; + u64 as_uint64; +}; + +struct hv_partition_creation_properties { + union hv_partition_processor_features disabled_processor_features; + union hv_partition_processor_xsave_features + disabled_processor_xsave_features; +} __packed; + +#define HV_PARTITION_SYNTHETIC_PROCESSOR_FEATURES_BANKS 1 + +union hv_partition_synthetic_processor_features { + u64 as_uint64[HV_PARTITION_SYNTHETIC_PROCESSOR_FEATURES_BANKS]; + + struct { + u64 hypervisor_present : 1; + /* Support for HV#1: (CPUID leaves 0x40000000 - 0x40000006)*/ + u64 hv1 : 1; + u64 access_vp_run_time_reg : 1; /* HV_X64_MSR_VP_RUNTIME */ + u64 access_partition_reference_counter : 1; /* HV_X64_MSR_TIME_REF_COUNT */ + u64 access_synic_regs : 1; /* SINT-related registers */ + /* + * Access to HV_X64_MSR_STIMER0_CONFIG through + * HV_X64_MSR_STIMER3_COUNT. + */ + u64 access_synthetic_timer_regs : 1; + u64 access_intr_ctrl_regs : 1; /* APIC MSRs and VP assist page*/ + /* HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL */ + u64 access_hypercall_regs : 1; + u64 access_vp_index : 1; + u64 access_partition_reference_tsc : 1; + u64 access_guest_idle_reg : 1; + u64 access_frequency_regs : 1; + u64 reserved_z12 : 1; + u64 reserved_z13 : 1; + u64 reserved_z14 : 1; + u64 enable_extended_gva_ranges_for_flush_virtual_address_list : 1; + u64 reserved_z16 : 1; + u64 reserved_z17 : 1; + /* Use fast hypercall output. Corresponds to privilege. */ + u64 fast_hypercall_output : 1; + u64 reserved_z19 : 1; + u64 start_virtual_processor : 1; /* Can start VPs */ + u64 reserved_z21 : 1; + /* Synthetic timers in direct mode. */ + u64 direct_synthetic_timers : 1; + u64 reserved_z23 : 1; + u64 extended_processor_masks : 1; + + /* Enable various hypercalls */ + u64 tb_flush_hypercalls : 1; + u64 synthetic_cluster_ipi : 1; + u64 notify_long_spin_wait : 1; + u64 query_numa_distance : 1; + u64 signal_events : 1; + u64 retarget_device_interrupt : 1; + u64 restore_time : 1; + + /* EnlightenedVmcs nested enlightenment is supported. */ + u64 enlightened_vmcs : 1; + u64 reserved : 31; + } __packed; +}; + +#define HV_MAKE_COMPATIBILITY_VERSION(major_, minor_) \ + ((u32)((major_) << 8 | (minor_))) + +#define HV_COMPATIBILITY_21_H2 HV_MAKE_COMPATIBILITY_VERSION(0X6, 0X9) + +union hv_partition_isolation_properties { + u64 as_uint64; + struct { + u64 isolation_type: 5; + u64 isolation_host_type : 2; + u64 rsvd_z: 5; + u64 shared_gpa_boundary_page_number: 52; + } __packed; +}; + +/* + * Various isolation types supported by MSHV. + */ +#define HV_PARTITION_ISOLATION_TYPE_NONE 0 +#define HV_PARTITION_ISOLATION_TYPE_SNP 2 +#define HV_PARTITION_ISOLATION_TYPE_TDX 3 + +/* + * Various host isolation types supported by MSHV. + */ +#define HV_PARTITION_ISOLATION_HOST_TYPE_NONE 0x0 +#define HV_PARTITION_ISOLATION_HOST_TYPE_HARDWARE 0x1 +#define HV_PARTITION_ISOLATION_HOST_TYPE_RESERVED 0x2 + +/* Note: Exo partition is enabled by default */ +#define HV_PARTITION_CREATION_FLAG_EXO_PARTITION BIT(8) +#define HV_PARTITION_CREATION_FLAG_LAPIC_ENABLED BIT(13) +#define HV_PARTITION_CREATION_FLAG_INTERCEPT_MESSAGE_PAGE_ENABLED BIT(19) +#define HV_PARTITION_CREATION_FLAG_X2APIC_CAPABLE BIT(22) + +struct hv_input_create_partition { + u64 flags; + struct hv_proximity_domain_info proximity_domain_info; + u32 compatibility_version; + u32 padding; + struct hv_partition_creation_properties partition_creation_properties; + union hv_partition_isolation_properties isolation_properties; +} __packed; + +struct hv_output_create_partition { + u64 partition_id; +} __packed; + +struct hv_input_initialize_partition { + u64 partition_id; +} __packed; + +struct hv_input_finalize_partition { + u64 partition_id; +} __packed; + +struct hv_input_delete_partition { + u64 partition_id; +} __packed; + +struct hv_input_get_partition_property { + u64 partition_id; + u32 property_code; /* enum hv_partition_property_code */ + u32 padding; +} __packed; + +struct hv_output_get_partition_property { + u64 property_value; +} __packed; + +struct hv_input_set_partition_property { + u64 partition_id; + u32 property_code; /* enum hv_partition_property_code */ + u32 padding; + u64 property_value; +} __packed; + +enum hv_vp_state_page_type { + HV_VP_STATE_PAGE_REGISTERS = 0, + HV_VP_STATE_PAGE_INTERCEPT_MESSAGE = 1, + HV_VP_STATE_PAGE_COUNT +}; + +struct hv_input_map_vp_state_page { + u64 partition_id; + u32 vp_index; + u32 type; /* enum hv_vp_state_page_type */ +} __packed; + +struct hv_output_map_vp_state_page { + u64 map_location; /* GPA page number */ +} __packed; + +struct hv_input_unmap_vp_state_page { + u64 partition_id; + u32 vp_index; + u32 type; /* enum hv_vp_state_page_type */ +} __packed; + +struct hv_opaque_intercept_message { + u32 vp_index; +} __packed; + +enum hv_port_type { + HV_PORT_TYPE_MESSAGE = 1, + HV_PORT_TYPE_EVENT = 2, + HV_PORT_TYPE_MONITOR = 3, + HV_PORT_TYPE_DOORBELL = 4 /* Root Partition only */ +}; + +struct hv_port_info { + u32 port_type; /* enum hv_port_type */ + u32 padding; + union { + struct { + u32 target_sint; + u32 target_vp; + u64 rsvdz; + } message_port_info; + struct { + u32 target_sint; + u32 target_vp; + u16 base_flag_number; + u16 flag_count; + u32 rsvdz; + } event_port_info; + struct { + u64 monitor_address; + u64 rsvdz; + } monitor_port_info; + struct { + u32 target_sint; + u32 target_vp; + u64 rsvdz; + } doorbell_port_info; + }; +} __packed; + +struct hv_connection_info { + u32 port_type; + u32 padding; + union { + struct { + u64 rsvdz; + } message_connection_info; + struct { + u64 rsvdz; + } event_connection_info; + struct { + u64 monitor_address; + } monitor_connection_info; + struct { + u64 gpa; + u64 trigger_value; + u64 flags; + } doorbell_connection_info; + }; +} __packed; + +/* Define synthetic interrupt controller flag constants. */ +#define HV_EVENT_FLAGS_COUNT (256 * 8) +#define HV_EVENT_FLAGS_BYTE_COUNT (256) +#define HV_EVENT_FLAGS32_COUNT (256 / sizeof(u32)) + +/* linux side we create long version of flags to use long bit ops on flags */ +#define HV_EVENT_FLAGS_UL_COUNT (256 / sizeof(ulong)) + +/* Define the synthetic interrupt controller event flags format. */ +union hv_synic_event_flags { + unsigned char flags8[HV_EVENT_FLAGS_BYTE_COUNT]; + u32 flags32[HV_EVENT_FLAGS32_COUNT]; + ulong flags[HV_EVENT_FLAGS_UL_COUNT]; /* linux only */ +}; + +struct hv_synic_event_flags_page { + volatile union hv_synic_event_flags event_flags[HV_SYNIC_SINT_COUNT]; +}; + +#define HV_SYNIC_EVENT_RING_MESSAGE_COUNT 63 + +struct hv_synic_event_ring { + u8 signal_masked; + u8 ring_full; + u16 reserved_z; + u32 data[HV_SYNIC_EVENT_RING_MESSAGE_COUNT]; +} __packed; + +struct hv_synic_event_ring_page { + struct hv_synic_event_ring sint_event_ring[HV_SYNIC_SINT_COUNT]; +}; + +/* Define SynIC control register. */ +union hv_synic_scontrol { + u64 as_uint64; + struct { + u64 enable : 1; + u64 reserved : 63; + } __packed; +}; + +/* Define the format of the SIEFP register */ +union hv_synic_siefp { + u64 as_uint64; + struct { + u64 siefp_enabled : 1; + u64 preserved : 11; + u64 base_siefp_gpa : 52; + } __packed; +}; + +union hv_synic_sirbp { + u64 as_uint64; + struct { + u64 sirbp_enabled : 1; + u64 preserved : 11; + u64 base_sirbp_gpa : 52; + } __packed; +}; + +union hv_interrupt_control { + u64 as_uint64; + struct { + u32 interrupt_type; /* enum hv_interrupt_type */ + u32 level_triggered : 1; + u32 logical_dest_mode : 1; + u32 rsvd : 30; + } __packed; +}; + +struct hv_stimer_state { + struct { + u32 undelivered_msg_pending : 1; + u32 reserved : 31; + } __packed flags; + u32 resvd; + u64 config; + u64 count; + u64 adjustment; + u64 undelivered_exp_time; +} __packed; + +struct hv_synthetic_timers_state { + struct hv_stimer_state timers[HV_SYNIC_STIMER_COUNT]; + u64 reserved[5]; +} __packed; + +union hv_input_delete_vp { + u64 as_uint64[2]; + struct { + u64 partition_id; + u32 vp_index; + u8 reserved[4]; + } __packed; +} __packed; + +struct hv_input_assert_virtual_interrupt { + u64 partition_id; + union hv_interrupt_control control; + u64 dest_addr; /* cpu's apic id */ + u32 vector; + u8 target_vtl; + u8 rsvd_z0; + u16 rsvd_z1; +} __packed; + +struct hv_input_create_port { + u64 port_partition_id; + union hv_port_id port_id; + u8 port_vtl; + u8 min_connection_vtl; + u16 padding; + u64 connection_partition_id; + struct hv_port_info port_info; + struct hv_proximity_domain_info proximity_domain_info; +} __packed; + +union hv_input_delete_port { + u64 as_uint64[2]; + struct { + u64 port_partition_id; + union hv_port_id port_id; + u32 reserved; + }; +} __packed; + +struct hv_input_connect_port { + u64 connection_partition_id; + union hv_connection_id connection_id; + u8 connection_vtl; + u8 rsvdz0; + u16 rsvdz1; + u64 port_partition_id; + union hv_port_id port_id; + u32 reserved2; + struct hv_connection_info connection_info; + struct hv_proximity_domain_info proximity_domain_info; +} __packed; + +union hv_input_disconnect_port { + u64 as_uint64[2]; + struct { + u64 connection_partition_id; + union hv_connection_id connection_id; + u32 is_doorbell: 1; + u32 reserved: 31; + } __packed; +} __packed; + +union hv_input_notify_port_ring_empty { + u64 as_uint64; + struct { + u32 sint_index; + u32 reserved; + }; +} __packed; + +struct hv_vp_state_data_xsave { + u64 flags; + union hv_x64_xsave_xfem_register states; +} __packed; + +/* + * For getting and setting VP state, there are two options based on the state type: + * + * 1.) Data that is accessed by PFNs in the input hypercall page. This is used + * for state which may not fit into the hypercall pages. + * 2.) Data that is accessed directly in the input\output hypercall pages. + * This is used for state that will always fit into the hypercall pages. + * + * In the future this could be dynamic based on the size if needed. + * + * Note these hypercalls have an 8-byte aligned variable header size as per the tlfs + */ + +#define HV_GET_SET_VP_STATE_TYPE_PFN BIT(31) + +enum hv_get_set_vp_state_type { + /* HvGetSetVpStateLocalInterruptControllerState - APIC/GIC state */ + HV_GET_SET_VP_STATE_LAPIC_STATE = 0 | HV_GET_SET_VP_STATE_TYPE_PFN, + HV_GET_SET_VP_STATE_XSAVE = 1 | HV_GET_SET_VP_STATE_TYPE_PFN, + HV_GET_SET_VP_STATE_SIM_PAGE = 2 | HV_GET_SET_VP_STATE_TYPE_PFN, + HV_GET_SET_VP_STATE_SIEF_PAGE = 3 | HV_GET_SET_VP_STATE_TYPE_PFN, + HV_GET_SET_VP_STATE_SYNTHETIC_TIMERS = 4, +}; + +struct hv_vp_state_data { + u32 type; + u32 rsvd; + struct hv_vp_state_data_xsave xsave; +} __packed; + +struct hv_input_get_vp_state { + u64 partition_id; + u32 vp_index; + u8 input_vtl; + u8 rsvd0; + u16 rsvd1; + struct hv_vp_state_data state_data; + u64 output_data_pfns[]; +} __packed; + +union hv_output_get_vp_state { + struct hv_synthetic_timers_state synthetic_timers_state; +} __packed; + +union hv_input_set_vp_state_data { + u64 pfns; + u8 bytes; +} __packed; + +struct hv_input_set_vp_state { + u64 partition_id; + u32 vp_index; + u8 input_vtl; + u8 rsvd0; + u16 rsvd1; + struct hv_vp_state_data state_data; + union hv_input_set_vp_state_data data[]; +} __packed; + +/* + * Dispatch state for the VP communicated by the hypervisor to the + * VP-dispatching thread in the root on return from HVCALL_DISPATCH_VP. + */ +enum hv_vp_dispatch_state { + HV_VP_DISPATCH_STATE_INVALID = 0, + HV_VP_DISPATCH_STATE_BLOCKED = 1, + HV_VP_DISPATCH_STATE_READY = 2, +}; + +/* + * Dispatch event that caused the current dispatch state on return from + * HVCALL_DISPATCH_VP. + */ +enum hv_vp_dispatch_event { + HV_VP_DISPATCH_EVENT_INVALID = 0x00000000, + HV_VP_DISPATCH_EVENT_SUSPEND = 0x00000001, + HV_VP_DISPATCH_EVENT_INTERCEPT = 0x00000002, +}; + +#define HV_ROOT_SCHEDULER_MAX_VPS_PER_CHILD_PARTITION 1024 +/* The maximum array size of HV_GENERIC_SET (vp_set) buffer */ +#define HV_GENERIC_SET_QWORD_COUNT(max) (((((max) - 1) >> 6) + 1) + 2) + +struct hv_vp_signal_bitset_scheduler_message { + u64 partition_id; + u32 overflow_count; + u16 vp_count; + u16 reserved; + +#define BITSET_BUFFER_SIZE \ + HV_GENERIC_SET_QWORD_COUNT(HV_ROOT_SCHEDULER_MAX_VPS_PER_CHILD_PARTITION) + union { + struct hv_vpset bitset; + u64 bitset_buffer[BITSET_BUFFER_SIZE]; + } vp_bitset; +#undef BITSET_BUFFER_SIZE +} __packed; + +static_assert(sizeof(struct hv_vp_signal_bitset_scheduler_message) <= + (sizeof(struct hv_message) - sizeof(struct hv_message_header))); + +#define HV_MESSAGE_MAX_PARTITION_VP_PAIR_COUNT \ + (((sizeof(struct hv_message) - sizeof(struct hv_message_header)) / \ + (sizeof(u64 /* partition id */) + sizeof(u32 /* vp index */))) - 1) + +struct hv_vp_signal_pair_scheduler_message { + u32 overflow_count; + u8 vp_count; + u8 reserved1[3]; + + u64 partition_ids[HV_MESSAGE_MAX_PARTITION_VP_PAIR_COUNT]; + u32 vp_indexes[HV_MESSAGE_MAX_PARTITION_VP_PAIR_COUNT]; + + u8 reserved2[4]; +} __packed; + +static_assert(sizeof(struct hv_vp_signal_pair_scheduler_message) == + (sizeof(struct hv_message) - sizeof(struct hv_message_header))); + +/* Input and output structures for HVCALL_DISPATCH_VP */ +#define HV_DISPATCH_VP_FLAG_CLEAR_INTERCEPT_SUSPEND 0x1 +#define HV_DISPATCH_VP_FLAG_ENABLE_CALLER_INTERRUPTS 0x2 +#define HV_DISPATCH_VP_FLAG_SET_CALLER_SPEC_CTRL 0x4 +#define HV_DISPATCH_VP_FLAG_SKIP_VP_SPEC_FLUSH 0x8 +#define HV_DISPATCH_VP_FLAG_SKIP_CALLER_SPEC_FLUSH 0x10 +#define HV_DISPATCH_VP_FLAG_SKIP_CALLER_USER_SPEC_FLUSH 0x20 + +struct hv_input_dispatch_vp { + u64 partition_id; + u32 vp_index; + u32 flags; + u64 time_slice; /* in 100ns */ + u64 spec_ctrl; +} __packed; + +struct hv_output_dispatch_vp { + u32 dispatch_state; /* enum hv_vp_dispatch_state */ + u32 dispatch_event; /* enum hv_vp_dispatch_event */ +} __packed; + +#endif /* _HV_HVHDK_H */ diff --git a/include/hyperv/hvhdk_mini.h b/include/hyperv/hvhdk_mini.h new file mode 100644 index 000000000000..46938b664f0c --- /dev/null +++ b/include/hyperv/hvhdk_mini.h @@ -0,0 +1,310 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Type definitions for the Microsoft Hypervisor. + */ +#ifndef _HV_HVHDK_MINI_H +#define _HV_HVHDK_MINI_H + +#include "hvgdk_mini.h" + +/* + * Doorbell connection_info flags. + */ +#define HV_DOORBELL_FLAG_TRIGGER_SIZE_MASK 0x00000007 +#define HV_DOORBELL_FLAG_TRIGGER_SIZE_ANY 0x00000000 +#define HV_DOORBELL_FLAG_TRIGGER_SIZE_BYTE 0x00000001 +#define HV_DOORBELL_FLAG_TRIGGER_SIZE_WORD 0x00000002 +#define HV_DOORBELL_FLAG_TRIGGER_SIZE_DWORD 0x00000003 +#define HV_DOORBELL_FLAG_TRIGGER_SIZE_QWORD 0x00000004 +#define HV_DOORBELL_FLAG_TRIGGER_ANY_VALUE 0x80000000 + +/* Each generic set contains 64 elements */ +#define HV_GENERIC_SET_SHIFT (6) +#define HV_GENERIC_SET_MASK (63) + +enum hv_generic_set_format { + HV_GENERIC_SET_SPARSE_4K, + HV_GENERIC_SET_ALL, +}; + +enum hv_scheduler_type { + HV_SCHEDULER_TYPE_LP = 1, /* Classic scheduler w/o SMT */ + HV_SCHEDULER_TYPE_LP_SMT = 2, /* Classic scheduler w/ SMT */ + HV_SCHEDULER_TYPE_CORE_SMT = 3, /* Core scheduler */ + HV_SCHEDULER_TYPE_ROOT = 4, /* Root / integrated scheduler */ + HV_SCHEDULER_TYPE_MAX +}; + +enum hv_partition_property_code { + /* Privilege properties */ + HV_PARTITION_PROPERTY_PRIVILEGE_FLAGS = 0x00010000, + HV_PARTITION_PROPERTY_SYNTHETIC_PROC_FEATURES = 0x00010001, + + /* Resource properties */ + HV_PARTITION_PROPERTY_GPA_PAGE_ACCESS_TRACKING = 0x00050005, + HV_PARTITION_PROPERTY_UNIMPLEMENTED_MSR_ACTION = 0x00050017, + + /* Compatibility properties */ + HV_PARTITION_PROPERTY_PROCESSOR_XSAVE_FEATURES = 0x00060002, + HV_PARTITION_PROPERTY_MAX_XSAVE_DATA_SIZE = 0x00060008, + HV_PARTITION_PROPERTY_PROCESSOR_CLOCK_FREQUENCY = 0x00060009, +}; + +enum hv_system_property { + /* Add more values when needed */ + HV_SYSTEM_PROPERTY_SCHEDULER_TYPE = 15, +}; + +struct hv_input_get_system_property { + u32 property_id; /* enum hv_system_property */ + union { + u32 as_uint32; + /* More fields to be filled in when needed */ + }; +} __packed; + +struct hv_output_get_system_property { + union { + u32 scheduler_type; /* enum hv_scheduler_type */ + }; +} __packed; + +struct hv_proximity_domain_flags { + u32 proximity_preferred : 1; + u32 reserved : 30; + u32 proximity_info_valid : 1; +} __packed; + +struct hv_proximity_domain_info { + u32 domain_id; + struct hv_proximity_domain_flags flags; +} __packed; + +/* HvDepositMemory hypercall */ +struct hv_deposit_memory { /* HV_INPUT_DEPOSIT_MEMORY */ + u64 partition_id; + u64 gpa_page_list[]; +} __packed; + +struct hv_input_withdraw_memory { + u64 partition_id; + struct hv_proximity_domain_info proximity_domain_info; +} __packed; + +struct hv_output_withdraw_memory { + DECLARE_FLEX_ARRAY(u64, gpa_page_list); +} __packed; + +/* HV Map GPA (Guest Physical Address) Flags */ +#define HV_MAP_GPA_PERMISSIONS_NONE 0x0 +#define HV_MAP_GPA_READABLE 0x1 +#define HV_MAP_GPA_WRITABLE 0x2 +#define HV_MAP_GPA_KERNEL_EXECUTABLE 0x4 +#define HV_MAP_GPA_USER_EXECUTABLE 0x8 +#define HV_MAP_GPA_EXECUTABLE 0xC +#define HV_MAP_GPA_PERMISSIONS_MASK 0xF +#define HV_MAP_GPA_ADJUSTABLE 0x8000 +#define HV_MAP_GPA_NO_ACCESS 0x10000 +#define HV_MAP_GPA_NOT_CACHED 0x200000 +#define HV_MAP_GPA_LARGE_PAGE 0x80000000 + +struct hv_input_map_gpa_pages { + u64 target_partition_id; + u64 target_gpa_base; + u32 map_flags; + u32 padding; + u64 source_gpa_page_list[]; +} __packed; + +union hv_gpa_page_access_state_flags { + struct { + u64 clear_accessed : 1; + u64 set_accessed : 1; + u64 clear_dirty : 1; + u64 set_dirty : 1; + u64 reserved : 60; + } __packed; + u64 as_uint64; +}; + +struct hv_input_get_gpa_pages_access_state { + u64 partition_id; + union hv_gpa_page_access_state_flags flags; + u64 hv_gpa_page_number; +} __packed; + +union hv_gpa_page_access_state { + struct { + u8 accessed : 1; + u8 dirty : 1; + u8 reserved: 6; + }; + u8 as_uint8; +} __packed; + +struct hv_lp_startup_status { + u64 hv_status; + u64 substatus1; + u64 substatus2; + u64 substatus3; + u64 substatus4; + u64 substatus5; + u64 substatus6; +} __packed; + +struct hv_input_add_logical_processor { + u32 lp_index; + u32 apic_id; + struct hv_proximity_domain_info proximity_domain_info; +} __packed; + +struct hv_output_add_logical_processor { + struct hv_lp_startup_status startup_status; +} __packed; + +enum { /* HV_SUBNODE_TYPE */ + HV_SUBNODE_ANY = 0, + HV_SUBNODE_SOCKET, + HV_SUBNODE_CLUSTER, + HV_SUBNODE_L3, + HV_SUBNODE_COUNT, + HV_SUBNODE_INVALID = -1 +}; + +struct hv_create_vp { /* HV_INPUT_CREATE_VP */ + u64 partition_id; + u32 vp_index; + u8 padding[3]; + u8 subnode_type; + u64 subnode_id; + struct hv_proximity_domain_info proximity_domain_info; + u64 flags; +} __packed; + +/* HV_INTERRUPT_TRIGGER_MODE */ +enum hv_interrupt_trigger_mode { + HV_INTERRUPT_TRIGGER_MODE_EDGE = 0, + HV_INTERRUPT_TRIGGER_MODE_LEVEL = 1, +}; + +/* HV_DEVICE_INTERRUPT_DESCRIPTOR */ +struct hv_device_interrupt_descriptor { + u32 interrupt_type; + u32 trigger_mode; + u32 vector_count; + u32 reserved; + struct hv_device_interrupt_target target; +} __packed; + +/* HV_INPUT_MAP_DEVICE_INTERRUPT */ +struct hv_input_map_device_interrupt { + u64 partition_id; + u64 device_id; + u32 flags; + u32 base_irt_idx; + struct hv_interrupt_entry logical_interrupt_entry; + struct hv_device_interrupt_descriptor interrupt_descriptor; +} __packed; + +/* HV_OUTPUT_MAP_DEVICE_INTERRUPT */ +struct hv_output_map_device_interrupt { + struct hv_interrupt_entry interrupt_entry; +} __packed; + +/* HV_INPUT_UNMAP_DEVICE_INTERRUPT */ +struct hv_input_unmap_device_interrupt { + u64 partition_id; + u64 device_id; + struct hv_interrupt_entry interrupt_entry; + u32 flags; +} __packed; + +#define HV_SOURCE_SHADOW_NONE 0x0 +#define HV_SOURCE_SHADOW_BRIDGE_BUS_RANGE 0x1 + +struct hv_send_ipi_ex { /* HV_INPUT_SEND_SYNTHETIC_CLUSTER_IPI_EX */ + u32 vector; + u32 reserved; + struct hv_vpset vp_set; +} __packed; + +typedef u16 hv_pci_rid; /* HV_PCI_RID */ +typedef u16 hv_pci_segment; /* HV_PCI_SEGMENT */ +typedef u64 hv_logical_device_id; +union hv_pci_bdf { /* HV_PCI_BDF */ + u16 as_uint16; + + struct { + u8 function : 3; + u8 device : 5; + u8 bus; + }; +} __packed; + +union hv_pci_bus_range { + u16 as_uint16; + + struct { + u8 subordinate_bus; + u8 secondary_bus; + }; +} __packed; + +enum hv_device_type { /* HV_DEVICE_TYPE */ + HV_DEVICE_TYPE_LOGICAL = 0, + HV_DEVICE_TYPE_PCI = 1, + HV_DEVICE_TYPE_IOAPIC = 2, + HV_DEVICE_TYPE_ACPI = 3, +}; + +union hv_device_id { /* HV_DEVICE_ID */ + u64 as_uint64; + + struct { + u64 reserved0 : 62; + u64 device_type : 2; + }; + + /* HV_DEVICE_TYPE_LOGICAL */ + struct { + u64 id : 62; + u64 device_type : 2; + } logical; + + /* HV_DEVICE_TYPE_PCI */ + struct { + union { + hv_pci_rid rid; + union hv_pci_bdf bdf; + }; + + hv_pci_segment segment; + union hv_pci_bus_range shadow_bus_range; + + u16 phantom_function_bits : 2; + u16 source_shadow : 1; + + u16 rsvdz0 : 11; + u16 device_type : 2; + } pci; + + /* HV_DEVICE_TYPE_IOAPIC */ + struct { + u8 ioapic_id; + u8 rsvdz0; + u16 rsvdz1; + u16 rsvdz2; + + u16 rsvdz3 : 14; + u16 device_type : 2; + } ioapic; + + /* HV_DEVICE_TYPE_ACPI */ + struct { + u32 input_mapping_base; + u32 input_mapping_count : 30; + u32 device_type : 2; + } acpi; +} __packed; + +#endif /* _HV_HVHDK_MINI_H */