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Re: [Qemu-devel] [PATCH] q35: lpc: allow to lock down 128K RAM at defaul
From: |
Laszlo Ersek |
Subject: |
Re: [Qemu-devel] [PATCH] q35: lpc: allow to lock down 128K RAM at default SMBASE address |
Date: |
Mon, 9 Sep 2019 21:20:45 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
On 09/09/19 21:15, Laszlo Ersek wrote:
> ... I've done some testing too. Applying the QEMU patch on top of
> 89ea03a7dc83, my plan was:
>
> - do not change OVMF, just see if it continues booting with the QEMU
> patch
>
> - then negotiate bit#1 too, in step (1a) -- this is when I'd expect (3a)
> to break.
>
> Unfortunately, the result is worse than that; even without negotiating
> bit#1 (i.e. in the baseline test), the firmware crashes (reboots) in
> step (3a). I've checked "info mtree", and all occurences of
> "smbase-blackhole" and "smbase-blackhole" are marked [disabled]. I'm not
> sure what's wrong with the baseline test (i.e. without negotiating
> bit#1). If I drop the patch (build QEMU at 89ea03a7dc83), then things
> work fine.
Sorry, there's a typo above: I pasted "smbase-blackhole" twice. The
second instance was meant to be "smbase-window". I checked all instances
of both regions in the info mtree output, I just fumbled the pasting.
Thanks
Laszlo
- Re: [Qemu-devel] [edk2-rfc] [edk2-devel] CPU hotplug using SMM with QEMU+OVMF, Igor Mammedov, 2019/09/02
- Re: [Qemu-devel] [edk2-rfc] [edk2-devel] CPU hotplug using SMM with QEMU+OVMF, Laszlo Ersek, 2019/09/02
- Re: [Qemu-devel] [edk2-rfc] [edk2-devel] CPU hotplug using SMM with QEMU+OVMF, Igor Mammedov, 2019/09/03
- Re: [Qemu-devel] [edk2-rfc] [edk2-devel] CPU hotplug using SMM with QEMU+OVMF, Laszlo Ersek, 2019/09/03
- Re: [Qemu-devel] [edk2-rfc] [edk2-devel] CPU hotplug using SMM with QEMU+OVMF, Igor Mammedov, 2019/09/04
- Re: [Qemu-devel] [edk2-rfc] [edk2-devel] CPU hotplug using SMM with QEMU+OVMF, Laszlo Ersek, 2019/09/05
- Re: [Qemu-devel] [edk2-rfc] [edk2-devel] CPU hotplug using SMM with QEMU+OVMF, Igor Mammedov, 2019/09/05
- [Qemu-devel] [PATCH] q35: lpc: allow to lock down 128K RAM at default SMBASE address, Igor Mammedov, 2019/09/05
- Re: [Qemu-devel] [PATCH] q35: lpc: allow to lock down 128K RAM at default SMBASE address, Laszlo Ersek, 2019/09/09
- Re: [Qemu-devel] [PATCH] q35: lpc: allow to lock down 128K RAM at default SMBASE address,
Laszlo Ersek <=
- Re: [Qemu-devel] [PATCH] q35: lpc: allow to lock down 128K RAM at default SMBASE address, Igor Mammedov, 2019/09/10
- Re: [Qemu-devel] [PATCH] q35: lpc: allow to lock down 128K RAM at default SMBASE address, Laszlo Ersek, 2019/09/11
- Re: [Qemu-devel] [edk2-devel] [PATCH] q35: lpc: allow to lock down 128K RAM at default SMBASE address, Igor Mammedov, 2019/09/17