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Re: [Qemu-devel] [kvmarm] [PATCH] arm: vexpress: Clear sysctl cfgctrl st
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] [kvmarm] [PATCH] arm: vexpress: Clear sysctl cfgctrl start bit |
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Date: |
Thu, 24 Jan 2013 18:57:15 +0000 |
On 24 January 2013 18:54, Alexander Graf <address@hidden> wrote:
> On 22.12.2012, at 20:03, Christoffer Dall wrote:
>> The start bit should only be set to indicate that a function call is
>> underway, right now. When done with function, clear it.
>
> Is this the reason 3.8 doesn't run properly?
It appears to be one of the reasons. The other is that
the kernel is trashing the device tree because it
happens to be sitting in the same page as the last
part-page of the initrd, and free_initrd_mem() rounds
up to a page boundary when poisoning memory after
the initrd has been uncompressed.
I think there is also some noise because we don't
emulate the oscillator and voltage regulator control
sysregs, but the kernel boots anyway.
-- PMM