[PATCH 0/7] kvmtool: Cleanup kernel loading

Dimitri John Ledkov dimitri.j.ledkov at intel.com
Mon Nov 2 07:17:29 PST 2015


On 2 November 2015 at 14:58, Will Deacon <will.deacon at arm.com> wrote:
> On Fri, Oct 30, 2015 at 06:26:53PM +0000, Andre Przywara wrote:
>> Hi,
>
> Hello Andre,
>
>> this series cleans up kvmtool's kernel loading functionality a bit.
>> It has been broken out of a previous series I sent [1] and contains
>> just the cleanup and bug fix parts, which should be less controversial
>> and thus easier to merge ;-)
>> I will resend the pipe loading part later on as a separate series.
>>
>> The first patch properly abstracts kernel loading to move
>> responsibility into each architecture's code. It removes quite some
>> ugly code from the generic kvm.c file.
>> The later patches address the naive usage of read(2) to, well, read
>> data from files. Doing this without coping with the subtleties of
>> the UNIX read semantics (returning with less or none data read is not
>> an error) can provoke hard to debug failures.
>> So these patches make use of the existing and one new wrapper function
>> to make sure we read everything we actually wanted to.
>> The last patch moves the ARM kernel loading code into the proper
>> location to be in line with the other architectures.
>>
>> Please have a look and give some comments!
>
> Looks good to me, but I'd like to see some comments from some mips/ppc/x86
> people on the changes you're making over there.

Looks mostly good to me, as one of the kvmtool down streams. Over at
https://github.com/clearlinux/kvmtool we have some patches to tweak
the x86 boot flow, which will need rebasing/retweaking) specifically
this commit here -
https://github.com/clearlinux/kvmtool/commit/a8dee709f85735d16739d0eda0cc00d3c1b17477

-- 
Regards,

Dimitri.
53 sleeps till Christmas, or less

https://clearlinux.org
Open Source Technology Center
Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ.



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