From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5E30924887E; Sat, 18 Jul 2026 02:20:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784341217; cv=none; b=tlBjXerT9LDy7G4Xf9qviBoU8fbdUheJcLzHIx1MR5ECaxb2aHmLlewNcNxUbwx/99ld9/kbySHmrO/PAmcVoJeD4LuhIQFKBSUELDDSWuHyt9msmRfgDZMJ/WSuwQv2gozdajQemoVURdiJVXwwcQUZQ1xUncyHHaRqMsIQ36w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784341217; c=relaxed/simple; bh=QinLjdrHG7tpTexgN5LTAi8FMgIWi0QZadkzwgkc6qw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=keqF1i+ZVC7XjSiegTxCu43ysRVtvXrFb2EZ9+G9cmcRh3EDZQ30Huj0veME/mMqevXI+XAs9nhjCMSpkNkLilrQSiEeHCASXxFjejrGWoZql97tcISGmQaqY8AW48lzW7n4eumTs+QuEYCS/h1pj16Jjfw2jx9s268dn03mpik= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=Ew4dV2gq; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="Ew4dV2gq" Received: from mrdev.corp.microsoft.com (unknown [40.86.181.13]) by linux.microsoft.com (Postfix) with ESMTPSA id E293120B716F; Fri, 17 Jul 2026 19:20:02 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com E293120B716F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1784341203; bh=1I2WdTUqOuf9JU5Q89Ev0MAW1iXFtnGBGr5MppYA0aU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ew4dV2gq8hvgx09OU8SpHqKOlzsF0GSPl7liKgcxPqb2JF1VnUo8ebewPHAjJMiVn jIRkdT73a/CS5AUAbf/MR0zkRsuCFKKUy18yE15BDIe5AoQTQ8MR5i31XM+NnnZFIn FBAgK12OgjdZGurc/LCpY93nnp/GVW6jCsp9oNJA= From: Mukesh R To: hpa@zytor.com, robin.murphy@arm.com, robh@kernel.org, wei.liu@kernel.org, mrathor@linux.microsoft.com, mhklinux@outlook.com, muislam@microsoft.com, namjain@linux.microsoft.com, magnuskulke@linux.microsoft.com, anbelski@linux.microsoft.com, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, iommu@lists.linux.dev, linux-pci@vger.kernel.org, linux-arch@vger.kernel.org Cc: kys@microsoft.com, haiyangz@microsoft.com, decui@microsoft.com, longli@microsoft.com, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, joro@8bytes.org, will@kernel.org, lpieralisi@kernel.org, kwilczynski@kernel.org, bhelgaas@google.com, arnd@arndb.de, jacob.pan@linux.microsoft.com Subject: [PATCH V4 5/9] mshv: Import data structs around device passthru from hyperv headers Date: Fri, 17 Jul 2026 19:19:45 -0700 Message-ID: <20260718021949.926306-6-mrathor@linux.microsoft.com> X-Mailer: git-send-email 2.51.2.vfs.0.1 In-Reply-To: <20260718021949.926306-1-mrathor@linux.microsoft.com> References: <20260718021949.926306-1-mrathor@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Copy/import from Hyper-V public headers, definitions and declarations that are related to creating domains in the hypervisor, attaching devices to them, etc. Signed-off-by: Mukesh R --- include/hyperv/hvgdk_mini.h | 8 +++++ include/hyperv/hvhdk_mini.h | 67 +++++++++++++++++++++++++++++++++++++ 2 files changed, 75 insertions(+) diff --git a/include/hyperv/hvgdk_mini.h b/include/hyperv/hvgdk_mini.h index 6a4e8b9d570f..e62f8d708e8e 100644 --- a/include/hyperv/hvgdk_mini.h +++ b/include/hyperv/hvgdk_mini.h @@ -326,6 +326,8 @@ union hv_hypervisor_version_info { /* stimer Direct Mode is available */ #define HV_STIMER_DIRECT_MODE_AVAILABLE BIT(19) +#define HV_DEVICE_DOMAIN_AVAILABLE BIT(24) + /* * Implementation recommendations. Indicates which behaviors the hypervisor * recommends the OS implement for optimal performance. @@ -486,9 +488,15 @@ union hv_vp_assist_msr_contents { /* HV_REGISTER_VP_ASSIST_PAGE */ #define HVCALL_GET_VP_INDEX_FROM_APIC_ID 0x009a #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0 +#define HVCALL_CREATE_DEVICE_DOMAIN 0x00b1 +#define HVCALL_ATTACH_DEVICE_DOMAIN 0x00b2 +#define HVCALL_MAP_DEVICE_GPA_PAGES 0x00b3 +#define HVCALL_UNMAP_DEVICE_GPA_PAGES 0x00b4 #define HVCALL_SIGNAL_EVENT_DIRECT 0x00c0 #define HVCALL_POST_MESSAGE_DIRECT 0x00c1 #define HVCALL_DISPATCH_VP 0x00c2 +#define HVCALL_DETACH_DEVICE_DOMAIN 0x00c4 +#define HVCALL_DELETE_DEVICE_DOMAIN 0x00c5 #define HVCALL_GET_GPA_PAGES_ACCESS_STATES 0x00c9 #define HVCALL_ACQUIRE_SPARSE_SPA_PAGE_HOST_ACCESS 0x00d7 #define HVCALL_RELEASE_SPARSE_SPA_PAGE_HOST_ACCESS 0x00d8 diff --git a/include/hyperv/hvhdk_mini.h b/include/hyperv/hvhdk_mini.h index b4cb2fa26e9b..90497635c3cb 100644 --- a/include/hyperv/hvhdk_mini.h +++ b/include/hyperv/hvhdk_mini.h @@ -547,4 +547,71 @@ union hv_device_id { /* HV_DEVICE_ID */ } acpi; } __packed; +/* 3 domain types: stage 1, stage 2, and SOC */ +#define HV_DEVICE_DOMAIN_TYPE_S2 0 /* HV_DEVICE_DOMAIN_ID_TYPE_S2 */ +#define HV_DEVICE_DOMAIN_TYPE_S1 1 /* HV_DEVICE_DOMAIN_ID_TYPE_S1 */ +#define HV_DEVICE_DOMAIN_TYPE_SOC 2 /* HV_DEVICE_DOMAIN_ID_TYPE_SOC */ + +/* ID for stage 2 default domain and NULL domain */ +#define HV_DEVICE_DOMAIN_ID_S2_DEFAULT 0 +#define HV_DEVICE_DOMAIN_ID_S2_NULL 0xFFFFFFFFULL + +union hv_device_domain_id { + u64 as_uint64; + struct { + u32 type : 4; + u32 reserved : 28; + u32 id; + }; +} __packed; + +struct hv_input_device_domain { /* HV_INPUT_DEVICE_DOMAIN */ + u64 partition_id; + union hv_input_vtl owner_vtl; + u8 padding[7]; + union hv_device_domain_id domain_id; +} __packed; + +union hv_create_device_domain_flags { /* HV_CREATE_DEVICE_DOMAIN_FLAGS */ + u32 as_uint32; + struct { + u32 forward_progress_required : 1; + u32 inherit_owning_vtl : 1; + u32 reserved : 30; + } __packed; +} __packed; + +struct hv_input_create_device_domain { /* HV_INPUT_CREATE_DEVICE_DOMAIN */ + struct hv_input_device_domain device_domain; + union hv_create_device_domain_flags create_device_domain_flags; +} __packed; + +struct hv_input_delete_device_domain { /* HV_INPUT_DELETE_DEVICE_DOMAIN */ + struct hv_input_device_domain device_domain; +} __packed; + +struct hv_input_attach_device_domain { /* HV_INPUT_ATTACH_DEVICE_DOMAIN */ + struct hv_input_device_domain device_domain; + union hv_device_id device_id; +} __packed; + +struct hv_input_detach_device_domain { /* HV_INPUT_DETACH_DEVICE_DOMAIN */ + u64 partition_id; + union hv_device_id device_id; +} __packed; + +struct hv_input_map_device_gpa_pages { /* HV_INPUT_MAP_DEVICE_GPA_PAGES */ + struct hv_input_device_domain device_domain; + union hv_input_vtl target_vtl; + u8 padding[3]; + u32 map_flags; + u64 target_device_va_base; + u64 gpa_page_list[]; +} __packed; + +struct hv_input_unmap_device_gpa_pages { /* HV_INPUT_UNMAP_DEVICE_GPA_PAGES */ + struct hv_input_device_domain device_domain; + u64 target_device_va_base; +} __packed; + #endif /* _HV_HVHDK_MINI_H */ -- 2.51.2.vfs.0.1