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Re: [Qemu-ppc] [PATCH] spapr_pci: Fix maximum IRQ number check in ibm, c

From: Alexander Graf
Subject: Re: [Qemu-ppc] [PATCH] spapr_pci: Fix maximum IRQ number check in ibm, change-msi
Date: Tue, 29 Apr 2014 11:40:59 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.4.0

On 29.04.14 05:17, Alexey Kardashevskiy wrote:
Recently a check for maximum supported MSIX vectors number has been
added. However the check always assumed that MSIX is the only case
and failed on devices which have MSI but do not have MSIX such as
QEMU's PCI Bridge. This results in assert in xics_alloc_block() as
req_num is zero.

This adds a check for MSI vectors number too.

Signed-off-by: Alexey Kardashevskiy <address@hidden>

I posted recently a memory corruption fix, patch
"spapr_pci: Fix number of returned vectors in ibm, change-msi".

However it breaks QEMU's PCI bridge so here is a patch.

I would prepare a patch to replace the one in agrag/ppc-next ad01ba7
but it has Cc: address@hidden in it so I am afraid it could make
it to some other tree already (did not it?).

Sorry for missing that. This is embarassing :(

You're lucky - the patch didn't get out of my queue yet. I've squashed this patch into the previous, broken commit and qemu-stable will only get CC'ed on the resulting, working patch.


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