qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [PATCH] fix guest physical bits to match host, to go be


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] fix guest physical bits to match host, to go beyond 1TB guests
Date: Tue, 16 Jul 2013 19:48:27 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7

Il 16/07/2013 19:46, Paolo Bonzini ha scritto:
>>> >> (see PUD with bit >=40 set)
>> > 
>> > I am not sure I understand what caused this: if we are advertising 40
>> > physical bits to the guest, why are we ending up with a PUD with
>> > bit >= 40 set?
> Because we create a guest that has bigger memory than what we advertise
> in CPUID.
> 

Also, note that the guest does not really care about this CPUID.  It is
only used by KVM itself to decide which bits in the page tables are
reserved.

Paolo



reply via email to

[Prev in Thread] Current Thread [Next in Thread]