linux-kernel - Re: [PATCHv2 03/12] x86/virt/tdx: Allocate reference counters for PAMT memory

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Message-ID: <8b25febfa5bd5ffcf2f092fd9a8914b4e6b2b5a3.camel@intel.com>
Date: Thu, 26 Jun 2025 04:48:06 +0000
From: "Huang, Kai" <kai.huang@...el.com>
To: "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
	"pbonzini@...hat.com" <pbonzini@...hat.com>, "seanjc@...gle.com"
	<seanjc@...gle.com>, "dave.hansen@...ux.intel.com"
	<dave.hansen@...ux.intel.com>
CC: "Gao, Chao" <chao.gao@...el.com>, "Edgecombe, Rick P"
	<rick.p.edgecombe@...el.com>, "x86@...nel.org" <x86@...nel.org>,
	"bp@...en8.de" <bp@...en8.de>, "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 03/12] x86/virt/tdx: Allocate reference counters for
 PAMT memory

On Thu, 2025-06-26 at 00:53 +0000, Huang, Kai wrote:
> > +	 */
> > +	area = get_vm_area(size, VM_IOREMAP);
> 
> I am not sure why VM_IOREMAP is used?  Or should we just use vmalloc()?

Sorry please ignore the vmalloc() part.  I lost my brain a while :-(