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Re: [PATCH v2 2/3] hw/smbios: fix table memory corruption with large mem


From: Ani Sinha
Subject: Re: [PATCH v2 2/3] hw/smbios: fix table memory corruption with large memory vms
Date: Fri, 18 Feb 2022 10:48:21 +0530

On Mon, Feb 14, 2022 at 6:21 PM Igor Mammedov <imammedo@redhat.com> wrote:
>
> On Mon,  7 Feb 2022 17:01:28 +0530
> Ani Sinha <ani@anisinha.ca> wrote:
>
> > With the current smbios table assignment code, we can have only 512 DIMM 
> > slots
> it's a bit confusing, since it's not DIMM slots in QEMU sense (we do not 
> expose
> DIMM devices via SMBIOS/E820). So maybe clarify here that initial RAM is split
> into 16GB (with 'DIMM' type ) chunks/entries when it's described in SMBIOS 
> table 17.
>
> > (each DIMM of 16 GiB in size) before tables 17 and 19 conflict with their
> > addresses.
>
> Are you sure it's addresses that are wrong?

I don't know why I had this pre conception of memory corruption and
overlapping addresses! Even the BZ says table handles overlap. Grr ...
doing too much multiplexing these days :(



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