Re: [kvm-unit-tests PATCH 00/14] ppc64: initial drop

[Paolo Bonzini]

On 03/11/2015 08:08, Thomas Huth wrote:
> On 03/08/15 16:41, Andrew Jones wrote:
>> > This series is the first series of a series of series that will
>> > bring support to kvm-unit-tests for ppc64, and eventually ppc64le.
>  Hi Andrew,
> 
> may I ask about the current state of ppc64 support in the
> kvm-unit-tests? Is there a newer version available than the one you
> posted three months ago?

I've been a slob with all the kvm-unit-tests patches.  Andrew, can you
send a single submission of all the patches, so that I can review them
and apply them?

Paolo
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Re: [PATCH] KVM: PPC: Book3S HV: Synthesize segment fault if SLB lookup fails

[David Gibson]

On Tue, Oct 27, 2015 at 04:13:56PM +1100, Paul Mackerras wrote:
> When handling a hypervisor data or instruction storage interrupt (HDSI
> or HISI), we look up the SLB entry for the address being accessed in
> order to translate the effective address to a virtual address which can
> be looked up in the guest HPT.  This lookup can occasionally fail due
> to the guest replacing an SLB entry without invalidating the evicted
> SLB entry.  In this situation an ERAT (effective to real address
> translation cache) entry can persist and be used by the hardware even
> though there is no longer a corresponding SLB entry.
> 
> Previously we would just deliver a data or instruction storage interrupt
> (DSI or ISI) to the guest in this case.  However, this is not correct
> and has been observed to cause guests to crash, typically with a
> data storage protection interrupt on a store to the vmemmap area.
> 
> Instead, what we do now is to synthesize a data or instruction segment
> interrupt.  That should cause the guest to reload an appropriate entry
> into the SLB and retry the faulting instruction.  If it still faults,
> we should find an appropriate SLB entry next time and be able to handle
> the fault.
> 
> Signed-off-by: Paul Mackerras 

Reviewed-by: David Gibson 

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| _way_ _around_!
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Re: [kvm-unit-tests PATCH 00/14] ppc64: initial drop

[Andrew Jones]

On Tue, Nov 03, 2015 at 10:40:18AM +0100, Paolo Bonzini wrote:
> 
> 
> On 03/11/2015 08:08, Thomas Huth wrote:
> > On 03/08/15 16:41, Andrew Jones wrote:
> >> > This series is the first series of a series of series that will
> >> > bring support to kvm-unit-tests for ppc64, and eventually ppc64le.
> >  Hi Andrew,
> > 
> > may I ask about the current state of ppc64 support in the
> > kvm-unit-tests? Is there a newer version available than the one you
> > posted three months ago?
> 

Hi Thomas,

I haven't gotten around to preparing the v2 yet :-(   I do have it on
my TODO list, and I'm looking forward to working on it. Now that I know
you're looking for it, I'll try to bump it up in priority. Thanks for
the interest!

> I've been a slob with all the kvm-unit-tests patches.  Andrew, can you
> send a single submission of all the patches, so that I can review them
> and apply them?

Hi Paolo,

I've got several patches on my staging branch that I believe are ready.
I plan to send those as a big "pull" series for your review soon.

Thanks,
drew

> 
> Paolo
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