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Re: [Qemu-devel] [PATCH 0/2] ACPI/arm-virt: add DBG2
From: |
Leif Lindholm |
Subject: |
Re: [Qemu-devel] [PATCH 0/2] ACPI/arm-virt: add DBG2 |
Date: |
Tue, 8 Sep 2015 14:04:38 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Sep 08, 2015 at 11:18:27AM +0800, Shannon Zhao wrote:
> On 2015/9/7 22:23, Leif Lindholm wrote:
> > The Debug Port Table 2 (DBG2) is mandated by the ARM Server Base Boot
> > Requirements specification. Add the DBG2 table definitions, and set up
> > an entry in the ARM virt machine for the pl011 UART.
>
> Looking at Documentation/arm64/acpi_object_usage.txt in Linux kernel, it
> says
> "
> DBG2 Signature Reserved (signature == "DBG2")
> == DeBuG port table 2 ==
> Microsoft only table, will not be supported.
> "
> It seems that Linux kernel doesn't support or need it, but Windows
> requires it. So does it need to test this on Windows?
No, it can be tested under Linux with the set I just sent out:
http://lists.infradead.org/pipermail/linux-arm-kernel/2015-September/368614.html
But I needed this set for QEMU for the kernel people to have something
to test :)
That said, I would be overjoyed if someone _could_ test it on Windows.
/
Leif
> > Leif Lindholm (2):
> > ACPI: Add definitions for the DBG2 table
> > hw/arm/virt-acpi-build: Add DBG2 table
> >
> > hw/arm/virt-acpi-build.c | 37 ++++++++++++++++++++++++++++++++++++-
> > include/hw/acpi/acpi-defs.h | 37 +++++++++++++++++++++++++++++++++++--
> > 2 files changed, 71 insertions(+), 3 deletions(-)
> >
>
> --
> Shannon
>