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Re: [PATCH V3 5/5] hv_netvsc: Add Isolation VM support for netvsc driver
- To: "Michael Kelley (LINUX)" <mikelley@xxxxxxxxxxxxx>, KY Srinivasan <kys@xxxxxxxxxxxxx>, Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>, Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>, "wei.liu@xxxxxxxxxx" <wei.liu@xxxxxxxxxx>, Dexuan Cui <decui@xxxxxxxxxxxxx>, "tglx@xxxxxxxxxxxxx" <tglx@xxxxxxxxxxxxx>, "mingo@xxxxxxxxxx" <mingo@xxxxxxxxxx>, "bp@xxxxxxxxx" <bp@xxxxxxxxx>, "dave.hansen@xxxxxxxxxxxxxxx" <dave.hansen@xxxxxxxxxxxxxxx>, "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, "hpa@xxxxxxxxx" <hpa@xxxxxxxxx>, "jgross@xxxxxxxx" <jgross@xxxxxxxx>, "sstabellini@xxxxxxxxxx" <sstabellini@xxxxxxxxxx>, "boris.ostrovsky@xxxxxxxxxx" <boris.ostrovsky@xxxxxxxxxx>, "joro@xxxxxxxxxx" <joro@xxxxxxxxxx>, "will@xxxxxxxxxx" <will@xxxxxxxxxx>, "davem@xxxxxxxxxxxxx" <davem@xxxxxxxxxxxxx>, "kuba@xxxxxxxxxx" <kuba@xxxxxxxxxx>, "jejb@xxxxxxxxxxxxx" <jejb@xxxxxxxxxxxxx>, "martin.petersen@xxxxxxxxxx" <martin.petersen@xxxxxxxxxx>, "arnd@xxxxxxxx" <arnd@xxxxxxxx>, "hch@xxxxxxxxxxxxx" <hch@xxxxxxxxxxxxx>, "m.szyprowski@xxxxxxxxxxx" <m.szyprowski@xxxxxxxxxxx>, "robin.murphy@xxxxxxx" <robin.murphy@xxxxxxx>, Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>, "thomas.lendacky@xxxxxxx" <thomas.lendacky@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Tianyu Lan <ltykernel@xxxxxxxxx>
- Date: Sat, 4 Dec 2021 15:42:36 +0800
- Cc: "iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx" <iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx>, "linux-arch@xxxxxxxxxxxxxxx" <linux-arch@xxxxxxxxxxxxxxx>, "linux-hyperv@xxxxxxxxxxxxxxx" <linux-hyperv@xxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "linux-scsi@xxxxxxxxxxxxxxx" <linux-scsi@xxxxxxxxxxxxxxx>, "netdev@xxxxxxxxxxxxxxx" <netdev@xxxxxxxxxxxxxxx>, vkuznets <vkuznets@xxxxxxxxxx>, "brijesh.singh@xxxxxxx" <brijesh.singh@xxxxxxx>, "konrad.wilk@xxxxxxxxxx" <konrad.wilk@xxxxxxxxxx>, "hch@xxxxxx" <hch@xxxxxx>, "parri.andrea@xxxxxxxxx" <parri.andrea@xxxxxxxxx>, "dave.hansen@xxxxxxxxx" <dave.hansen@xxxxxxxxx>
- Delivery-date: Sat, 04 Dec 2021 07:43:08 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 12/4/2021 2:59 AM, Michael Kelley (LINUX) wrote:
+
+/*
+ * hv_map_memory - map memory to extra space in the AMD SEV-SNP Isolation VM.
+ */
+void *hv_map_memory(void *addr, unsigned long size)
+{
+ unsigned long *pfns = kcalloc(size / HV_HYP_PAGE_SIZE,
This should be just PAGE_SIZE, as this code is unrelated to communication
with Hyper-V.
Yes, agree. Will update.
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