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Re: [Qemu-devel] [qemu] How to reliably obtain physaddr from vaddr

From: Richard Henderson
Subject: Re: [Qemu-devel] [qemu] How to reliably obtain physaddr from vaddr
Date: Sun, 15 Mar 2015 16:10:21 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0

On 03/15/2015 03:00 AM, Emilio G. Cota wrote:
> On a TLB hit this is trivial (just do nothing), but on
> a TLB miss I'm lost on what to do--I cannot even follow
> where helper_ld/st go (grep doesn't help), although I
> suspect it's TCG backend ops and I don't see an obvious
> way of adding a new operation there.

It goes into softmmu_template.h.  Which then tests a victim tlb, and finally
calls tlb_fill.  You'll probably need to do the same.


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