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Re: Feature Request: 32-bit mem write and 'setpci -s' type command in me


From: Seth Goldberg
Subject: Re: Feature Request: 32-bit mem write and 'setpci -s' type command in menu.lst
Date: Sat, 24 Oct 2009 03:57:13 -0700 (PDT)
User-agent: Alpine 2.00 (GSO 1167 2008-08-23)



Quoting Vladimir 'phcoder' Serbinenko, who wrote the following on Sat, 24...:

Nando wrote:
Hi Vlad,

   > able to do the equivalent of setpci by calculating the addresses
   > needing memory writes.

    Except pciconf space


Are you saying that write_dword will not write to pciconf space?
pciconf space on x86 is acessible through inw/outw and not through memory

All modern systems equipped with PCI Express support memory-mapped config space access. If we do implement a pciconf command, it should support accessing extended config space as well, via the MMCFG region (we'll need to look up the base address of such a region in the ACPI MCFG table).

 --S




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