* vTPM manager and receiving a request
@ 2010-04-08 2:12 ilish ilish
2010-04-08 8:08 ` Jean Guyader
0 siblings, 1 reply; 2+ messages in thread
From: ilish ilish @ 2010-04-08 2:12 UTC (permalink / raw)
To: xen-devel
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Dear all,
I have a question about the vTPM manager on a Xen system. I want to measure the time when vTPM manager receives a command from the VMs and sends a respond for the command received. I do not know where to place my time function in vTPM manager's source code. Are there any thoughts about my issue?
Thank you very much.
Ilhan
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: vTPM manager and receiving a request
2010-04-08 2:12 vTPM manager and receiving a request ilish ilish
@ 2010-04-08 8:08 ` Jean Guyader
0 siblings, 0 replies; 2+ messages in thread
From: Jean Guyader @ 2010-04-08 8:08 UTC (permalink / raw)
To: ilish ilish; +Cc: xen-devel
2010/4/8 ilish ilish <ilishim@hotmail.com>:
> Dear all,
> I have a question about the vTPM manager on a Xen system. I want to measure
> the time when vTPM manager receives a command from the VMs and sends a
> respond for the command received. I do not know where to place my time
> function in vTPM manager's source code. Are there any thoughts about my
> issue?
IIANM the vTPM code leaves in qemu as a emulated device.
The guest entry point would be tis_mem_read*/tis_mem_write*,
then the code uses TPM_receive and TPM_send to communicate with the real TPM.
Jean
^ permalink raw reply [flat|nested] 2+ messages in thread
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