Hi
Any idea of how to get physical address from the virtual address
Thanks
David
In what context? For what?
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com
----- Original Message -----
From: “Zhihua LI”
To: “Windows System Software Devs Interest List”
Sent: Tuesday, February 10, 2004 5:01 AM
Subject: [ntdev] How to get physical address from the virtual address
>
>
>
>
>
> Hi
>
> Any idea of how to get physical address from the virtual address
>
>
> Thanks
>
> David
>
>
> —
> Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com
system context. I would like to use my own buffer to replace DMA buffer.
And my low layer need me to pass the
virtual address and physical address down. But now I only can get my own
buffer’s virtual address 
“Maxim S. Shatskih”
m> cc:
Sent by: Subject: Re: [ntdev] How to get physical address from the virtual address
bounce-166744-14464@li
sts.osr.com
02/10/2004 10:36 AM
Please respond to
“Windows System
Software Devs Interest
List”
In what context? For what?
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com
----- Original Message -----
From: “Zhihua LI”
To: “Windows System Software Devs Interest List”
Sent: Tuesday, February 10, 2004 5:01 AM
Subject: [ntdev] How to get physical address from the virtual address
>
>
>
>
>
> Hi
>
> Any idea of how to get physical address from the virtual address
>
>
> Thanks
>
> David
>
>
> —
> Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com
—
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
You are currently subscribed to ntdev as: xxxxx@ctl.creative.com
To unsubscribe send a blank email to xxxxx@lists.osr.com
Hi,
Try MmGetPhysicalAddress function.
Hope this will help.
Dev
-----Original Message-----
From: Zhihua LI [mailto:xxxxx@ctl.creative.com]
Sent: Tuesday, February 10, 2004 8:18 AM
To: Windows System Software Devs Interest List
Subject: Re: [ntdev] How to get physical address from the virtual
address
system context. I would like to use my own buffer to replace DMA buffer.
And my low layer need me to pass the
virtual address and physical address down. But now I only can get my own
buffer’s virtual address
“Maxim S. Shatskih”
System Software Devs Interest List"
m> cc:
Sent by: Subject: Re: [ntdev]
How to get physical address from the virtual address
bounce-166744-14464@li
sts.osr.com
02/10/2004 10:36 AM
Please respond to
“Windows System
Software Devs Interest
List”
In what context? For what?
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com
----- Original Message -----
From: “Zhihua LI”
To: “Windows System Software Devs Interest List”
Sent: Tuesday, February 10, 2004 5:01 AM
Subject: [ntdev] How to get physical address from the virtual address
>
>
>
>
>
> Hi
>
> Any idea of how to get physical address from the virtual address
>
>
> Thanks
>
> David
>
>
> —
> Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com
—
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
You are currently subscribed to ntdev as: xxxxx@ctl.creative.com
To unsubscribe send a blank email to xxxxx@lists.osr.com
—
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
You are currently subscribed to ntdev as: dsingh@in.rainbow.com
To unsubscribe send a blank email to xxxxx@lists.osr.com
depending on the hardware in the system MmGetPhysicalAddress may not
give you an address that your device can access. You shouldn’t use
this.
You can hand a locked MDL to the hal’s DMA API and it will build a list
of the physical addresses that make up the buffer for you. Look at
routines IoGetDmaAdapter as the starting point - there are pointers to
the routines you need inthe DMA_ADAPTER structure it returns.
-p
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of
dsingh@IN.rainbow.com
Sent: Monday, February 09, 2004 10:01 PM
To: Windows System Software Devs Interest List
Subject: RE: [ntdev] How to get physical address from the virtual
address
Hi,
Try MmGetPhysicalAddress function.
Hope this will help.
Dev
-----Original Message-----
From: Zhihua LI [mailto:xxxxx@ctl.creative.com]
Sent: Tuesday, February 10, 2004 8:18 AM
To: Windows System Software Devs Interest List
Subject: Re: [ntdev] How to get physical address from the virtual
address
system context. I would like to use my own buffer to replace DMA buffer.
And my low layer need me to pass the
virtual address and physical address down. But now I only can get my own
buffer’s virtual address
“Maxim S. Shatskih”
System Software Devs Interest List"
m> cc:
Sent by: Subject: Re:
[ntdev] How to get physical address from the virtual address
bounce-166744-14464@li
sts.osr.com
02/10/2004 10:36 AM
Please respond to
“Windows System
Software Devs Interest
List”
In what context? For what?
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com
----- Original Message -----
From: “Zhihua LI”
To: “Windows System Software Devs Interest List”
Sent: Tuesday, February 10, 2004 5:01 AM
Subject: [ntdev] How to get physical address from the virtual address
>
>
>
>
>
> Hi
>
> Any idea of how to get physical address from the virtual address
>
>
> Thanks
>
> David
>
>
> —
> Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com
—
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
You are currently subscribed to ntdev as: xxxxx@ctl.creative.com
To unsubscribe send a blank email to xxxxx@lists.osr.com
—
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
You are currently subscribed to ntdev as: dsingh@in.rainbow.com
To unsubscribe send a blank email to xxxxx@lists.osr.com
—
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
You are currently subscribed to ntdev as: xxxxx@windows.microsoft.com
To unsubscribe send a blank email to xxxxx@lists.osr.com