[Xen-ia64-devel] [PATCH] Return ENOMEM if VPD allocation failed

[Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>]

Hi,

Usually ASSRET() is "(void)0".  Therefore if VPD allocation 
fails with xenheap shortage or fragmentation, NULL pointer 
access occurs in vmx_final_setup_guest(). 
This patch fixes it. 


BTW, I succeeded to creating 60 UP-domains.  But I failed to 
creating many SMP-domains with xenheap shortage.  I failed 
in the following environments. 
 - 55 domains, and
 - each 5 vcpus

If we would like to support many domains and many vcpus, 
I think that we should expand xenheap. 
I think that the simplest method is changing PS of ITR[0] 
and DTR[0] to 256M byte.  Do you have good ideas?


Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>

Best regards,
 Kan

Attachment: alloc_vpd.patch
Description: Binary data

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