| commit | b4e3066684ea9379e09c8c6b0902eceb939fa97c | |
| author | Cédric Le Goater <clg@kaod.org> | |
| Thu, 18 Jul 2019 11:54:08 +0000 (18 13:54 +0200) | ||
| committer | David Gibson <david@gibson.dropbear.id.au> | |
| Wed, 21 Aug 2019 07:17:39 +0000 (21 17:17 +1000) | ||
| tree | d6dc7179e1cdc14bca8bcf56d3f30afb8a8a2ce5 | treesnapshot (tar.gz zip) |
| parent | 52c5acf04ee0f111657c03916db13ff325c58866 | commitdiff |
ppc/xive: Provide escalation support
If the XIVE presenter can not find the NVT dispatched on any of the HW
threads, it can not deliver the interrupt. XIVE offers an escalation
mechanism to handle such scenarios and inform the hypervisor that an
action should be taken.
Escalation is configured by setting the 'e' bit and the EAS in word 4
& 5 to let the HW look for the escalation END on which to trigger a
new event.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190718115420.19919-6-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
If the XIVE presenter can not find the NVT dispatched on any of the HW
threads, it can not deliver the interrupt. XIVE offers an escalation
mechanism to handle such scenarios and inform the hypervisor that an
action should be taken.
Escalation is configured by setting the 'e' bit and the EAS in word 4
& 5 to let the HW look for the escalation END on which to trigger a
new event.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190718115420.19919-6-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| hw/intc/xive.c | diffblobblamehistory |