Use commit (2f295167e0 q35/mch: implement extended TSEG sizes) for
inspiration and (ab)use reserved register in config space at 0x9c
offset [*] to extend q35 pci-host with ability to use 128K at
0x3 as SMRAM and hide it (like TSEG) from non-SMM context.
Usage:
1: write 0xff in the register
Hi Igor,
On 12/04/19 18:05, Igor Mammedov wrote:
> Use commit (2f295167e0 q35/mch: implement extended TSEG sizes) for
> inspiration and (ab)use reserved register in config space at 0x9c
> offset [*] to extend q35 pci-host with ability to use 128K at
> 0x3 as SMRAM and hide it (like TSEG) from