From: Amit kumar <akamit91@hotmail.com>
To: "edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Subject: Unable to Loacte EdkiiIoMmuProtocol.
Date: Mon, 27 Nov 2017 11:24:00 +0000 [thread overview]
Message-ID: <DM5PR11MB15787E1B3DCFFBAB125AF2B2DC250@DM5PR11MB1578.namprd11.prod.outlook.com> (raw)
Hi.
I am trying to allocate a mem buffer above 4Gb address but the allocation
since i am unable to locate EdkiiIoMmuProtocol.
Status = gBS->LocateProtocol (&gEdkiiIoMmuProtocolGuid, NULL, (VOID **)&mIoMmuProtocol);
Status = mIoMmuProtocol->AllocateBuffer (
mIoMmuProtocol,
MaxAllocateType,
EfiBootServicesData,
1,
HostAddress,
EDKII_IOMMU_ATTRIBUTE_DUAL_ADDRESS_CYCLE
);
can somebody tell me the right way to do it. ?
Best Regards
Amit Kumar
next reply other threads:[~2017-11-27 11:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-27 11:24 Amit kumar [this message]
2017-11-27 14:01 ` Unable to Loacte EdkiiIoMmuProtocol Yao, Jiewen
2017-11-27 15:58 ` Andrew Fish
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