From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=13.77.154.182 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793844082; b=MzWj5Qx30lhNUGj+QMVY5PEIjHgFA7PKKZIQKH76HvO1YOvm8pYwIgBf6YOnFOAOTE6O CnJErkRELSRk/2wSX5Vf1TOxRakjk4svowOZQ+1rX1NlypLEz9JTQd6p0WsX1jt6YQUTq HzfvA6snSGYuC4uvUhlOMPbqPsq5vJDAN5KFJPjwSYqPpXDQCttnktK46X02Eg4Qxp6tp 9OlUI/x+YJKWz5bfjeqfkCtOaL6S+sd7e83zTqOAXgCXuREgTDcyDl8f2me9MCdl0KZCJ uW2+h7WDc8ag9GvKnbvm+V32xfqAUT2w479bO6qXcEgG5IEHNGt/mVdHeqVDrKkAaRA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793844082; h=DMARC-Filter:Received:DKIM-Filter:DKIM-Signature:From:To:Cc:Subject: Date:Message-ID:X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding:X-Spam-Status:X-Spam-Checker-Version; bh=0EHmjzbFR/yNJP1Nxx0dUmYDywoFEpvvyJwEhuOQ678=; b=TiyVt28vV2fHM9ZJneVVg5rGNfCMxm9GGyZGgNEeCYC+HiKmMFgYScTQFATgIwIUYqCX JRN/B1Tc1MkNSkZJSsWZDZNvJrPcOt0SG04c//0uhyPtJBXULtLodo6VNqQrvwkJL/S1R VeNuvYi5NWSrW9EXNyA6xbDd5I1VCoIqhU4Y0CcPAFbNnPK8UJa718EhMWAmGfeYZ6+S1 sRWNUHTYtHWUtV6DYpsvq0jw072+0dfkVXjVDriyTi4LrgOGrESauRpnYxlArA1rLD06h 2dXH8sRMD3PLI4G9VKPepRcXD70R7tpJU66MpLqq9uSerihHOVcayr71CwntTeebG9w== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass header.d=linux.microsoft.com header.i=@linux.microsoft.com header.a=rsa-sha256 header.s=default header.b="gQ/70QIV"; arc=none smtp.remote-ip=13.77.154.182 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 23A8C6082BFA; Thu, 5 Nov 2026 02:01:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 23A8C6082BFA 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, unprotected) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.a=rsa-sha256 header.s=default header.b=gQ/70QIV Received: from mrdev.corp.microsoft.com (192-184-212-33.fiber.dynamic.sonic.net [192.184.212.33]) by linux.microsoft.com (Postfix) with ESMTPSA id ACEC120B7168; Wed, 4 Nov 2026 18:01:05 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com ACEC120B7168 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1793844066; bh=0EHmjzbFR/yNJP1Nxx0dUmYDywoFEpvvyJwEhuOQ678=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gQ/70QIVNFwhg9zK7Wyn4GFjEbn85pDKpy0w/LUnf6m4VXX+CcBjk95WwoCJlnD0P w8bah8MEu00otZuOHjTS7P8b91woR5wFAj+SCs9SM/K6MnJo7ptJ0fwPxR3XJ4/sZP ohsEgnD3iaS8h7sgamNDfu3qa9utDh8FNK9ryDQQ= From: Mukesh R To: linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-arch@vger.kernel.org Cc: jgg@nvidia.com, jacob.pan@linux.microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, arnd@arndb.de, mrathor@linux.microsoft.com Subject: [PATCH V4 2/5] PCI: hv: Export hv_build_devid_type_pci() and change return type Date: Wed, 4 Nov 2026 18:01:03 -0800 Message-ID: <20261105020106.3496339-3-mrathor@linux.microsoft.com> X-Mailer: git-send-email 2.51.2.vfs.0.1 In-Reply-To: <20261105020106.3496339-1-mrathor@linux.microsoft.com> References: <20261105020106.3496339-1-mrathor@linux.microsoft.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Hyper-V, most hypercalls related to device domain management like attach device to a device domain, or to map/unmap regions, interrupts, etc need a device ID as a parameter. So, make hv_build_devid_type_pci() public and change return type to u64 to enforce its size. Signed-off-by: Mukesh R Reviewed-by: Souradeep Chakrabarti --- arch/x86/hyperv/irqdomain.c | 9 +++++---- arch/x86/include/asm/mshyperv.h | 6 ++++++ 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/arch/x86/hyperv/irqdomain.c b/arch/x86/hyperv/irqdomain.c index b3ad50a874dc..8780573a4332 100644 --- a/arch/x86/hyperv/irqdomain.c +++ b/arch/x86/hyperv/irqdomain.c @@ -112,7 +112,7 @@ static int get_rid_cb(struct pci_dev *pdev, u16 alias, void *data) return 0; } -static union hv_device_id hv_build_devid_type_pci(struct pci_dev *pdev) +u64 hv_build_devid_type_pci(struct pci_dev *pdev) { int pos; union hv_device_id hv_devid; @@ -172,8 +172,9 @@ static union hv_device_id hv_build_devid_type_pci(struct pci_dev *pdev) } out: - return hv_devid; + return hv_devid.as_uint64; } +EXPORT_SYMBOL_GPL(hv_build_devid_type_pci); /* * hv_map_msi_interrupt() - Map the MSI IRQ in the hypervisor. @@ -196,7 +197,7 @@ int hv_map_msi_interrupt(struct irq_data *data, msidesc = irq_data_get_msi_desc(data); pdev = msi_desc_to_pci_dev(msidesc); - hv_devid = hv_build_devid_type_pci(pdev); + hv_devid.as_uint64 = hv_build_devid_type_pci(pdev); cpu = cpumask_first(irq_data_get_effective_affinity_mask(data)); return hv_map_interrupt(hv_devid, false, cpu, cfg->vector, @@ -271,7 +272,7 @@ static int hv_unmap_msi_interrupt(struct pci_dev *pdev, { union hv_device_id hv_devid; - hv_devid = hv_build_devid_type_pci(pdev); + hv_devid.as_uint64 = hv_build_devid_type_pci(pdev); return hv_unmap_interrupt(hv_devid.as_uint64, irq_entry); } diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index 20d947c2c758..24b19cd28a05 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -248,6 +248,12 @@ void hv_crash_asm_end(void); static inline void hv_root_crash_init(void) {} #endif /* CONFIG_MSHV_ROOT && CONFIG_CRASH_DUMP */ +#ifdef CONFIG_PCI_MSI +u64 hv_build_devid_type_pci(struct pci_dev *pdev); +#else +static inline u64 hv_build_devid_type_pci(struct pci_dev *pdev) { return 0; } +#endif + #else /* CONFIG_HYPERV */ static inline void hyperv_init(void) {} static inline void hyperv_setup_mmu_ops(void) {} -- 2.51.2.vfs.0.1