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Re: [Qemu-devel] physical memory address in guest (from his point of vie


From: Paolo Bonzini
Subject: Re: [Qemu-devel] physical memory address in guest (from his point of view)
Date: Fri, 24 Apr 2015 11:05:42 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0


On 24/04/2015 10:46, Catalin Vasile wrote:
> Does a physical memory address in a guest points to the same memory as qemu?
> For example: if I have a physical pointer 0x34 in the guest, does it
> point to the same location that qemu points with 0x34 address?

No.  QEMU converts guest pointers (which are just uint64_t) to host
pointers using address_space_map/address_space_unmap.

Paolo



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