Re: [PATCH 05/12] x86/hyperv: Change vTOM handling to use standard coco mechanisms
From: Tianyu Lan <hidden>
Date: 2022-11-03 14:01:40
Also in:
linux-arch, linux-hyperv, linux-iommu, linux-pci, lkml
On 10/21/2022 1:57 AM, Michael Kelley wrote:
+
+void __init hv_vtom_init(void)
+{
+ cc_set_vendor(CC_VENDOR_HYPERV);
+ cc_set_mask(ms_hyperv.shared_gpa_boundary);
+ physical_mask &= ms_hyperv.shared_gpa_boundary - 1;hv_vtom_init() also works for VBS case. VBS doesn't have vTOM support and so shared_gpa_boundary should not be applied for VBS. Here seems to assume ms_hyperv.shared_gpa_boundary to 0 for VBS, right?