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Message-ID: <4ahv7uvjtsabon6e3amc26lkv7saxovzxlo6hldtqne7lpegx6@autbetdzmu4l>
Date: Fri, 27 Jun 2025 13:42:54 +0300
From: "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>
To: "Huang, Kai" <kai.huang@...el.com>
Cc: "pbonzini@...hat.com" <pbonzini@...hat.com>,
"seanjc@...gle.com" <seanjc@...gle.com>, "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
"Gao, Chao" <chao.gao@...el.com>, "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>,
"bp@...en8.de" <bp@...en8.de>, "x86@...nel.org" <x86@...nel.org>,
"mingo@...hat.com" <mingo@...hat.com>, "Zhao, Yan Y" <yan.y.zhao@...el.com>,
"tglx@...utronix.de" <tglx@...utronix.de>, "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
"linux-coco@...ts.linux.dev" <linux-coco@...ts.linux.dev>, "Yamahata, Isaku" <isaku.yamahata@...el.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCHv2 02/12] x86/virt/tdx: Allocate page bitmap for Dynamic
PAMT
On Thu, Jun 26, 2025 at 11:08:07AM +0000, Huang, Kai wrote:
> On Mon, 2025-06-09 at 22:13 +0300, Kirill A. Shutemov wrote:
> > With Dynamic PAMT, the kernel no longer needs to allocate PAMT_4K on
> > boot, but instead must allocate a page bitmap.
>
> PAMTs are not allocated on boot, but when module gets initialized.
>
> So perhaps:
>
> "on boot" -> "when TDX module gets initialized"
Ack.
--
Kiryl Shutsemau / Kirill A. Shutemov
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