linux-kernel - Re: [PATCH v4 2/6] x86/tdx: Support vmalloc() for tdx_enc_status

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Message-ID: <20230412152037.upiciyn5zhmilw3r@box>
Date:   Wed, 12 Apr 2023 18:20:37 +0300
From:   "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>
To:     "Michael Kelley (LINUX)" <mikelley@...rosoft.com>
Cc:     Dexuan Cui <decui@...rosoft.com>,
        "ak@...ux.intel.com" <ak@...ux.intel.com>,
        "arnd@...db.de" <arnd@...db.de>, "bp@...en8.de" <bp@...en8.de>,
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        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
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        KY Srinivasan <kys@...rosoft.com>,
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        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
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        Tianyu Lan <Tianyu.Lan@...rosoft.com>
Subject: Re: [PATCH v4 2/6] x86/tdx: Support vmalloc() for
 tdx_enc_status_changed()

On Tue, Apr 11, 2023 at 04:28:20PM +0000, Michael Kelley (LINUX) wrote:
> Does anyone know if there is a reason to use one vs. the other?
> slow_virt_to_phys() is x86-only, but that's not a problem here.

slow_virt_to_phys() is more generic as it works for non-vmalloc addresses,
but generally they are equivalent for the use.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov