RE: [Xen-devel] A question on vmx loader in xen - how and when rombiosis loaded into memory

["Cui, Dexuan" <dexuan.cui@xxxxxxxxx>]

> how and when rombios, vgabios and vmxassist have been loaded to the memory from the disk before calling “memcpy”.

 

They are statically compiled into hvmloader in the way of C array and are loaded with hvmloader.

Please step into the directory hvmloader/ and search for "roms.h" in Makefile.

 

-- Dexuan 

 

---

From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Hu Jia Yi
Sent: 2008年2月28日 11:26
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] A question on vmx loader in xen - how and when rombiosis loaded into memory

A “main” function is defined in Xen-3.1.0-source/tools/firmware/hvmloader/hvmloader.c.

In this main function, rombios, vgabios and vmxassist are copied to specified address,

with following commands

 

memcpy((void *)ROMBIOS_PHYSICAL_ADDRESS, rombios, rombios_sz);

…

memcpy((void *)ETHERBOOT_PHYSICAL_ADDRESS, etherboot, sizeof(etherboot));

….

 

But after searching the whole directory “firmware”,  I don’t know how and when rombios, vgabios and vmxassist have been loaded to the memory from the disk before calling “memcpy”.

 

Could anybody help me on this?

 

Best regards,

Hu Jia Yi

Ext: 20430

Tel: 65-67510430

 

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel