Hi, Reza

According to SATA2.6 section 11.7 PIO data-in command protocol, the device will 
send D2H to show there is an error happened. So it should return device error 
here.

Thanks
Feng

-----Original Message-----
From: Reza Jelveh [mailto:[email protected]] 
Sent: Monday, June 23, 2014 03:45
To: [email protected]
Cc: Alexander Graf
Subject: Re: [edk2] OvmfPkg: problems getting ahci mode working with 
satacontroller

AhciPioTransfer incorrectly returns a device error when successful

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