netdev - Re: [PATCH v5 06/14] x86/ioremap: Support hypervisor specified range to map as encrypted

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Message-ID: <5e3fb10d-29d4-3272-674f-2bd6cb0540e1@intel.com>
Date:   Fri, 10 Feb 2023 10:58:18 -0800
From:   Dave Hansen <dave.hansen@...el.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        "Michael Kelley (LINUX)" <mikelley@...rosoft.com>
Cc:     Borislav Petkov <bp@...en8.de>, "hpa@...or.com" <hpa@...or.com>,
        KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        Dexuan Cui <decui@...rosoft.com>,
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Subject: Re: [PATCH v5 06/14] x86/ioremap: Support hypervisor specified range
 to map as encrypted

On 2/10/23 10:41, Sean Christopherson wrote:
> Anyways, tying things back to the actual code being discussed, I vote against
> CC_ATTR_PARAVISOR.  Being able to trust device emulation is not unique to a
> paravisor.  A single flag also makes too many assumptions about what is trusted
> and thus should be accessed encrypted.

Did you like the more wordy per-device flags better?  Or did you have
something else in mind entirely?