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Message-ID: <1eedc23a-8b50-bd90-d398-cff3f22af01e@gmail.com>
Date: Thu, 3 Nov 2022 22:00:39 +0800
From: Tianyu Lan <ltykernel@...il.com>
To: Michael Kelley <mikelley@...rosoft.com>, hpa@...or.com,
kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
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Subject: Re: [PATCH 05/12] x86/hyperv: Change vTOM handling to use standard
coco mechanisms
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?
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