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SubjectRE: [Patch v3 13/14] PCI: hv: Add hypercalls to read/write MMIO space
Date


> -----Original Message-----
> From: Michael Kelley (LINUX) <mikelley@microsoft.com>
> Sent: Wednesday, November 16, 2022 1:42 PM
> To: hpa@zytor.com; KY Srinivasan <kys@microsoft.com>; Haiyang Zhang
> <haiyangz@microsoft.com>; wei.liu@kernel.org; Dexuan Cui
> <decui@microsoft.com>; luto@kernel.org; peterz@infradead.org;
> davem@davemloft.net; edumazet@google.com; kuba@kernel.org;
> pabeni@redhat.com; lpieralisi@kernel.org; robh@kernel.org; kw@linux.com;
> bhelgaas@google.com; arnd@arndb.de; hch@infradead.org;
> m.szyprowski@samsung.com; robin.murphy@arm.com;
> thomas.lendacky@amd.com; brijesh.singh@amd.com; tglx@linutronix.de;
> mingo@redhat.com; bp@alien8.de; dave.hansen@linux.intel.com; Tianyu Lan
> <Tianyu.Lan@microsoft.com>; kirill.shutemov@linux.intel.com;
> sathyanarayanan.kuppuswamy@linux.intel.com; ak@linux.intel.com;
> isaku.yamahata@intel.com; Williams, Dan J <dan.j.williams@intel.com>;
> jane.chu@oracle.com; seanjc@google.com; tony.luck@intel.com;
> x86@kernel.org; linux-kernel@vger.kernel.org; linux-hyperv@vger.kernel.org;
> netdev@vger.kernel.org; linux-pci@vger.kernel.org; linux-
> arch@vger.kernel.org; iommu@lists.linux.dev
> Cc: Michael Kelley (LINUX) <mikelley@microsoft.com>
> Subject: [Patch v3 13/14] PCI: hv: Add hypercalls to read/write MMIO space
>
> To support PCI pass-thru devices in Confidential VMs, Hyper-V
> has added hypercalls to read and write MMIO space. Add the
> appropriate definitions to hyperv-tlfs.h and implement
> functions to make the hypercalls. These functions are used
> in a subsequent patch.
>
> Co-developed-by: Dexuan Cui <decui@microsoft.com>
> Signed-off-by: Dexuan Cui <decui@microsoft.com>
> Signed-off-by: Michael Kelley <mikelley@microsoft.com>
> ---

Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>

One question - Will you put the document in patch 0 directly into some place of
the src tree?


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