linux-kernel - Re: [PATCH v10 000/108] KVM TDX basic feature support

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Message-ID: <20230112161634.GD2034518@ls.amr.corp.intel.com>
Date:   Thu, 12 Jan 2023 08:16:34 -0800
From:   Isaku Yamahata <isaku.yamahata@...il.com>
To:     "Wang, Lei" <lei4.wang@...el.com>
Cc:     isaku.yamahata@...el.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, isaku.yamahata@...il.com,
        Paolo Bonzini <pbonzini@...hat.com>, erdemaktas@...gle.com,
        Sean Christopherson <seanjc@...gle.com>,
        Sagi Shahar <sagis@...gle.com>,
        David Matlack <dmatlack@...gle.com>
Subject: Re: [PATCH v10 000/108] KVM TDX basic feature support

On Tue, Jan 03, 2023 at 04:26:59PM +0800,
"Wang, Lei" <lei4.wang@...el.com> wrote:

> On 10/30/2022 2:22 PM, isaku.yamahata@...el.com wrote:
> 
> > ** Detecting the TDX module readiness.
> > TDX host patch series implements the detection of the TDX module availability
> > and its initialization so that KVM can use it.  Also it manages Host KeyID
> > (HKID) assigned to guest TD.
> > The assumed APIs the TDX host patch series provides are
> > - int seamrr_enabled()
> >   Check if required cpu feature (SEAM mode) is available. This only check CPU
> >   feature availability.  At this point, the TDX module may not be ready for KVM
> >   to use.
> > - int init_tdx(void);
> >   Initialization of TDX module so that the TDX module is ready for KVM to use.
> > - const struct tdsysinfo_struct *tdx_get_sysinfo(void);
> >   Return the system wide information about the TDX module.  NULL if the TDX
> >   isn't initialized.
> > - u32 tdx_get_global_keyid(void);
> >   Return global key id that is used for the TDX module itself.
> > - int tdx_keyid_alloc(void);
> >   Allocate HKID for guest TD.
> > - void tdx_keyid_free(int keyid);
> >   Free HKID for guest TD.
> 
> tdx_enable() is introduced by TDX host patch series and used in patch 5, should
> it be added to this list too?

Thanks, I've updated the cover letter to catch up the host tdx patch series v10.
-- 
Isaku Yamahata <isaku.yamahata@...il.com>