[Xen-devel] question about memory mapping and balloon

[tgh <tianguanhua@xxxxxxxxxx>]

hi
In the paravirt case, guestos maintain its own mfn which need m2p and 
p2m ,or xen manage these ?
I am confused about how does guestOS maintain its virt-to-physic and 
physic-to-mach mapping ,in the linux ,there is only v2p mapping,
how does guestOS maintain its p2m mapping ,and when a virt address is   
put into a mmu, does cpu hardware convert virt-addr into machine address 
or guest's phyiscal address?
another one
does xen in hvm case support balloon for modifying the vm memory size or 
not?

I am confused about it

could you help me
Thanks in advance

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