linux-kernel - Re: [RFC PATCH 5/7] iommu/amd: Add support for Guest IO protection

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Message-ID: <ac209589-f351-d8a9-e47c-0ae622fd0b13@amd.com>
Date:   Thu, 25 Mar 2021 20:06:05 +0700
From:   Suravee Suthikulpanit <suravee.suthikulpanit@....com>
To:     Joerg Roedel <joro@...tes.org>
Cc:     linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
        Jon.Grimm@....com, Wei.Huang2@....com
Subject: Re: [RFC PATCH 5/7] iommu/amd: Add support for Guest IO protection

Joerg,

On 3/18/21 10:31 PM, Joerg Roedel wrote:
> On Fri, Mar 12, 2021 at 03:04:09AM -0600, Suravee Suthikulpanit wrote:
>> @@ -519,6 +521,7 @@ struct protection_domain {
>>   	spinlock_t lock;	/* mostly used to lock the page table*/
>>   	u16 id;			/* the domain id written to the device table */
>>   	int glx;		/* Number of levels for GCR3 table */
>> +	bool giov;		/* guest IO protection domain */
> 
> Could this be turned into a flag?
> 

Good point. I'll convert to use the protection_domain.flags.

Thanks,
Suravee