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Re: [Qemu-devel] [PATCH] ppc: Improve emulation of THRM registers
From: |
Benjamin Herrenschmidt |
Subject: |
Re: [Qemu-devel] [PATCH] ppc: Improve emulation of THRM registers |
Date: |
Mon, 20 Jun 2016 07:11:27 +1000 |
On Sun, 2016-06-19 at 11:09 -0400, G 3 wrote:
> On 6/19/16 12:12 AM, address@hidden wrote:
> > Message: 5
> > Date: Sun, 19 Jun 2016 10:54:13 +1000
> > From: Benjamin Herrenschmidt<address@hidden>
> > To:address@hidden
> > Cc:address@hidden,address@hidden, Mark
> > Cave-Ayland <address@hidden>, Alexander
> > Graf
> > <address@hidden>
> > Subject: [Qemu-devel] [PATCH] ppc: Improve emulation of THRM
> > registers
> > Message-ID:<address@hidden>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > The 75x and 74xx processors have some thermal monitoring SPRs that
> > some OSes such as MacOS do use. Our current "dumb" implementation
> > isn't good enough and will cause some versions of MacOS to hang
> > during
> > boot.
> >
> > This lifts an improved emulation from MacOnLinux and adapts it to
> > qemu, thus fixing the problem.
> >
> Which versions of the Mac OS hang?
The Apple CPU Plugin in 9.2.x afaik (well 9.2.2 for sure).
Cheers,
Ben.