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From: Wei Liu <wei.liu@kernel.org>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Wei Liu <wei.liu@kernel.org>,
	Linux on Hyper-V List <linux-hyperv@vger.kernel.org>,
	virtualization@lists.linux-foundation.org,
	Linux Kernel List <linux-kernel@vger.kernel.org>,
	Michael Kelley <mikelley@microsoft.com>,
	Vineeth Pillai <viremana@linux.microsoft.com>,
	Sunil Muthuswamy <sunilmut@microsoft.com>,
	Nuno Das Neves <nunodasneves@linux.microsoft.com>,
	kumarpraveen@linux.microsoft.com, pasha.tatashin@soleen.com,
	David Woodhouse <dwmw2@infradead.org>,
	Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
	"open list:INTEL IOMMU (VT-d)" <iommu@lists.linux-foundation.org>
Subject: Re: [RFC v1 4/8] intel/vt-d: export intel_iommu_get_resv_regions
Date: Fri, 9 Jul 2021 14:21:14 +0000	[thread overview]
Message-ID: <20210709142114.r5vhxmmp6mzq3vjl@liuwe-devbox-debian-v2> (raw)
In-Reply-To: <f32e17d4-e435-cd50-8afc-68f6133fd1a0@linux.intel.com>

On Fri, Jul 09, 2021 at 10:17:25PM +0800, Lu Baolu wrote:
> On 2021/7/9 19:43, Wei Liu wrote:
> > When Microsoft Hypervisor runs on Intel platforms it needs to know the
> > reserved regions to program devices correctly. There is no reason to
> > duplicate intel_iommu_get_resv_regions. Export it.
> 
> Why not using iommu_get_resv_regions()?

That calls into ops->get_resv_regions.

In this patch series, get_resv_regions is hv_iommu_resv_regions, which
wants to use intel_iommu_get_resv_regions when it detects the underlying
hardware platform is from Intel.

Wei.

  reply	other threads:[~2021-07-09 14:21 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-09 11:43 [RFC v1 0/8] MSHV: add PV-IOMMU driver Wei Liu
2021-07-09 11:43 ` [RFC v1 1/8] x86/hyperv: export hv_build_pci_dev_id Wei Liu
2021-07-09 11:43 ` [RFC v1 2/8] asm-generic/hyperv: add device domain definitions Wei Liu
2021-07-09 11:43 ` [RFC v1 3/8] intel/vt-d: make DMAR table parsing code more flexible Wei Liu
2021-07-09 12:56   ` Robin Murphy
2021-07-09 13:42     ` Wei Liu
2021-07-09 11:43 ` [RFC v1 4/8] intel/vt-d: export intel_iommu_get_resv_regions Wei Liu
2021-07-09 14:17   ` Lu Baolu
2021-07-09 14:21     ` Wei Liu [this message]
2021-07-09 11:43 ` [RFC v1 5/8] mshv: add paravirtualized IOMMU support Wei Liu
2021-08-03 18:40   ` Praveen Kumar
2021-08-03 21:47     ` Wei Liu
2021-08-04  6:43       ` Praveen Kumar
2021-08-10 10:46         ` Wei Liu
2021-07-09 11:43 ` [RFC v1 6/8] mshv: command line option to skip devices in PV-IOMMU Wei Liu
2021-07-09 12:46   ` Robin Murphy
2021-07-09 13:34     ` Wei Liu
2021-08-03 18:50   ` Praveen Kumar
2021-08-03 21:56     ` Wei Liu
2021-08-04  7:03       ` Praveen Kumar
2021-08-10 10:04         ` Wei Liu
2021-07-09 11:43 ` [RFC v1 7/8] mshv: implement in-kernel device framework Wei Liu
2021-07-09 13:02   ` Matthew Wilcox
2021-07-09 13:50     ` Wei Liu
2021-07-09 15:32       ` Matthew Wilcox
2021-07-09 16:27         ` Wei Liu
2021-07-09 16:38           ` Matthew Wilcox
2021-07-09 19:14             ` Wei Liu
2021-07-09 19:48               ` Matthew Wilcox
2021-07-09 20:11                 ` Wei Liu
2021-08-03 19:12   ` Praveen Kumar
2021-08-03 22:04     ` Wei Liu
2021-07-09 11:43 ` [RFC v1 8/8] mshv: add vfio bridge device Wei Liu
2021-08-03 19:27   ` Praveen Kumar
2021-08-10 10:52     ` Wei Liu

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