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authorJan Beulich <JBeulich@suse.com>2017-12-08 04:17:28 -0700
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>2017-12-12 09:39:17 -0500
commit0f3922a9b99eca76c6578cd84191573378f2c988 (patch)
treeee9df16f009c9866d998f42b435b29f92cfdda2c /drivers/xen
parent1ab134ca3151c55b6fc606857e71d9adb4c355d1 (diff)
x86/Xen: don't report ancient LAPIC version
Unconditionally reporting a value seen on the P4 or older invokes functionality like io_apic_get_unique_id() on 32-bit builds, resulting in a panic() with sufficiently many CPUs and/or IO-APICs. Doing what that function does would be the hypervisor's responsibility anyway, so makes no sense to be used when running on Xen. Uniformly report a more modern version; this shouldn't matter much as both LAPIC and IO-APIC are being managed entirely / mostly by the hypervisor. Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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