[libvirt] [PATCH 04/13] qemu: Enable PCI multi bus for S390 guests

Ján Tomko jtomko at redhat.com
Sat Jun 2 14:16:24 UTC 2018


On Thu, May 24, 2018 at 02:24:29PM +0200, Xiao Feng Ren wrote:
>From: Yi Min Zhao <zyimin at linux.ibm.com>
>
>QEMU on s390 supports PCI multibus since forever. But zPCI, as extension
>of PCI device on s390, is the significant capability. Only when zPCI
>capability is existing, we consider QEMU supports PCI multibus properly.
>So let enable PCI multibus only if zPCI is supported.
>
>Signed-off-by: Yi Min Zhao <zyimin at linux.ibm.com>
>Reviewed-by: Boris Fiuczynski <fiuczy at linux.vnet.ibm.com>
>Reviewed-by: Stefan Zimmermann <stzi at linux.ibm.com>
>Reviewed-by: Bjoern Walk <bwalk at linux.vnet.ibm.com>
>---
> src/qemu/qemu_capabilities.c | 3 +++
> 1 file changed, 3 insertions(+)
>
>diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
>index e6fd7ee468..3d4f64ca09 100644
>--- a/src/qemu/qemu_capabilities.c
>+++ b/src/qemu/qemu_capabilities.c
>@@ -1716,6 +1716,9 @@ bool virQEMUCapsHasPCIMultiBus(virQEMUCapsPtr qemuCaps,
>         return false;
>     }
>
>+    if (ARCH_IS_S390(def->os.arch))

This includes S390 as well as S390X, do we care about that distinction?

Jano
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