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GET /api/1.1/patches/2230647/?format=api
{ "id": 2230647, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2230647/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260429231519.2569088-2-mrathor@linux.microsoft.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/1.1/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260429231519.2569088-2-mrathor@linux.microsoft.com>", "date": "2026-04-29T23:15:17", "name": "[v0,1/3] mshv: Import declarations for irq remap and add irqbypass support", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "270bea3180b3ed320574c36e24c317446723922b", "submitter": { "id": 91512, "url": "http://patchwork.ozlabs.org/api/1.1/people/91512/?format=api", "name": "Mukesh R", "email": "mrathor@linux.microsoft.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260429231519.2569088-2-mrathor@linux.microsoft.com/mbox/", "series": [ { "id": 502164, "url": "http://patchwork.ozlabs.org/api/1.1/series/502164/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=502164", "date": "2026-04-29T23:15:16", "name": "PCI passthru on Hyper-V (Part II)", "version": 0, "mbox": "http://patchwork.ozlabs.org/series/502164/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2230647/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2230647/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-pci+bounces-53430-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=linux.microsoft.com header.i=@linux.microsoft.com\n header.a=rsa-sha256 header.s=default header.b=cBKhmmJl;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c09:e001:a7::12fc:5321; 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Wed, 29 Apr 2026 23:15:49 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 9D16D3988FB;\n\tWed, 29 Apr 2026 23:15:43 +0000 (UTC)", "from linux.microsoft.com (linux.microsoft.com [13.77.154.182])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 55C1226F2B9;\n\tWed, 29 Apr 2026 23:15:42 +0000 (UTC)", "from mrdev.corp.microsoft.com (unknown [13.88.17.9])\n\tby linux.microsoft.com (Postfix) with ESMTPSA id 14E9720B716D;\n\tWed, 29 Apr 2026 16:15:42 -0700 (PDT)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1777504543; cv=none;\n b=t5ZREFkmrlvCmh6bG3DMH194N6CGcAeXuVh1Q8KWmU9BSFSA3XKP1BoO4rYofWc80qoQ799IRrq9tbvLkjh8y/TWjx9gWoU69+1AlQXjS5ZK7Z+9AD3U4nxNYZ8r1kejmYiBFUD8QHzW2wJQ5pl6Ce0u7YNKeCGEGXDSX2Q46+8=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1777504543; c=relaxed/simple;\n\tbh=k1fyeqFvOWhWiwhuu03xoXEKXIOY/LlOjsI8Du2iXHI=;\n\th=From:To:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=NhtgBAdX3D0PQe+YxO+dpLZx/pRoGezaIsKkWml5Dzg3T333iHBgyvo/gZQrXEHEgGRc7iS/nzCsHzpDpOO9z3wawRVt/JJyC2EMp6IHH87p+aPCc5a43btDisdN84Y4daiS1Yyj+AOmSazY368PQp5wmrUpIcatcfV7JOnGJ4o=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=linux.microsoft.com;\n spf=pass smtp.mailfrom=linux.microsoft.com;\n dkim=pass (1024-bit key) header.d=linux.microsoft.com\n header.i=@linux.microsoft.com header.b=cBKhmmJl;\n arc=none smtp.client-ip=13.77.154.182", "DKIM-Filter": "OpenDKIM Filter v2.11.0 linux.microsoft.com 14E9720B716D", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com;\n\ts=default; t=1777504542;\n\tbh=NzAneEtzNkIbXybIamfJGsZ0CM2u/FE+l2+Du+bWYlc=;\n\th=From:To:Subject:Date:In-Reply-To:References:From;\n\tb=cBKhmmJl/bxorseUXWyX6UQQ5whrKuTFX3z68t8rLWR7YCk6uFQgqkk6XzxMqfVx+\n\t gVnDf8O/rDQ70143Q8o0gG7qp+EqCzUKgYdblSfkovl3SUaFgFB22R81Tp8fWMWUl8\n\t GuNTvq++CJosiXKoYG4el5lleo3eiaj3jXL1TXz8=", "From": "Mukesh R <mrathor@linux.microsoft.com>", "To": "hpa@zytor.com,\n\trobin.murphy@arm.com,\n\trobh@kernel.org,\n\tlinux-hyperv@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tiommu@lists.linux.dev,\n\tlinux-pci@vger.kernel.org,\n\tlinux-arch@vger.kernel.org", "Subject": "[PATCH v0 1/3] mshv: Import declarations for irq remap and add\n irqbypass support", "Date": "Wed, 29 Apr 2026 16:15:17 -0700", "Message-ID": "<20260429231519.2569088-2-mrathor@linux.microsoft.com>", "X-Mailer": "git-send-email 2.51.2.vfs.0.1", "In-Reply-To": "<20260429231519.2569088-1-mrathor@linux.microsoft.com>", "References": "<20260429231519.2569088-1-mrathor@linux.microsoft.com>", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit" }, "content": "For the irq map/remap hypercalls, copy relevant data structures from\nhypervisor public headers into Linux equivalents. Also, update Kconfig and\nmshv_irqfd for irqbypass. Please note, irqbypass is required for doing\npassthru on MSHV. This because there is really no way of knowing the linux\nirq in the mshv_irqfd_assign and mshv_irqfd_update paths without it. The\nlinux irq is setup upfront by VFIO before irqfd assign/update happens.\n\nSigned-off-by: Mukesh R <mrathor@linux.microsoft.com>\n---\n drivers/hv/Kconfig | 1 +\n drivers/hv/mshv_eventfd.h | 3 +++\n include/hyperv/hvgdk_mini.h | 3 +++\n include/hyperv/hvhdk.h | 17 +++++++++++++++++\n 4 files changed, 24 insertions(+)", "diff": "diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig\nindex 7937ac0cbd0f..c831fe25ca2b 100644\n--- a/drivers/hv/Kconfig\n+++ b/drivers/hv/Kconfig\n@@ -75,6 +75,7 @@ config MSHV_ROOT\n \t# no particular order, making it impossible to reassemble larger pages\n \tdepends on PAGE_SIZE_4KB\n \tselect EVENTFD\n+\tselect IRQ_BYPASS_MANAGER\n \tselect VIRT_XFER_TO_GUEST_WORK\n \tselect HMM_MIRROR\n \tselect MMU_NOTIFIER\ndiff --git a/drivers/hv/mshv_eventfd.h b/drivers/hv/mshv_eventfd.h\nindex 464c6b81ab33..ff4dd24b8ad4 100644\n--- a/drivers/hv/mshv_eventfd.h\n+++ b/drivers/hv/mshv_eventfd.h\n@@ -9,6 +9,7 @@\n #define __LINUX_MSHV_EVENTFD_H\n \n #include <linux/poll.h>\n+#include <linux/irqbypass.h>\n \n #include \"mshv.h\"\n #include \"mshv_root.h\"\n@@ -37,6 +38,8 @@ struct mshv_irqfd {\n \tstruct mshv_irqfd_resampler\t *irqfd_resampler;\n \tstruct eventfd_ctx\t\t *irqfd_resamplefd;\n \tstruct hlist_node\t\t irqfd_resampler_hnode;\n+\tstruct irq_bypass_consumer\t irqfd_bypass_cons;\n+\tstruct irq_bypass_producer\t *irqfd_bypass_prod;\n };\n \n void mshv_eventfd_init(struct mshv_partition *partition);\ndiff --git a/include/hyperv/hvgdk_mini.h b/include/hyperv/hvgdk_mini.h\nindex da622fb06440..1ef480825705 100644\n--- a/include/hyperv/hvgdk_mini.h\n+++ b/include/hyperv/hvgdk_mini.h\n@@ -59,6 +59,8 @@ struct hv_u128 {\n #define HV_PARTITION_ID_INVALID\t\t((u64)0)\n #define HV_PARTITION_ID_SELF\t\t((u64)-1)\n \n+#define HV_MAX_VPS 256 /* HV_MAXIMUM_PROCESSORS */\n+\n /* Hyper-V specific model specific registers (MSRs) */\n \n #if defined(CONFIG_X86)\n@@ -508,6 +510,7 @@ union hv_vp_assist_msr_contents {\t /* HV_REGISTER_VP_ASSIST_PAGE */\n #define HVCALL_UNMAP_VP_STATE_PAGE\t\t\t0x00e2\n #define HVCALL_GET_VP_STATE\t\t\t\t0x00e3\n #define HVCALL_SET_VP_STATE\t\t\t\t0x00e4\n+#define HVCALL_GET_VPSET_FROM_MDA 0x00e5\n #define HVCALL_GET_VP_CPUID_VALUES\t\t\t0x00f4\n #define HVCALL_GET_PARTITION_PROPERTY_EX\t\t0x0101\n #define HVCALL_MMIO_READ\t\t\t\t0x0106\ndiff --git a/include/hyperv/hvhdk.h b/include/hyperv/hvhdk.h\nindex 5e83d3714966..d0a892347ab1 100644\n--- a/include/hyperv/hvhdk.h\n+++ b/include/hyperv/hvhdk.h\n@@ -952,4 +952,21 @@ struct hv_input_modify_sparse_spa_page_host_access {\n #define HV_MODIFY_SPA_PAGE_HOST_ACCESS_LARGE_PAGE 0x4\n #define HV_MODIFY_SPA_PAGE_HOST_ACCESS_HUGE_PAGE 0x8\n \n+#ifdef CONFIG_X86\n+\n+struct hv_input_get_vp_set_from_mda { /* HV_OUTPUT_GET_VP_SET_FROM_MDA */\n+\tu64 target_partid;\n+\tu64 dest_address;\n+\tu8 input_vtl;\n+\tu8 destmode_logical; /* true => mode is logical */\n+\tu16 reserved0; /* mbz */\n+\tu32 reserved1; /* mbz */\n+} __packed;\n+\n+union hv_output_get_vp_set_from_mda { /* HV_OUTPUT_GET_VP_SET_FROM_MDA */\n+\tstruct hv_vpset target_vpset;\n+\tu64 bitset_buffer[HV_GENERIC_SET_QWORD_COUNT(HV_MAX_VPS)];\n+} __packed;\n+\n+#endif /* CONFIG_X86 */\n #endif /* _HV_HVHDK_H */\n", "prefixes": [ "v0", "1/3" ] }