motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-04 00:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

spapr: introduce a new sPAPR IRQ backend supporting XIVE and XICS

Browse source 
The 'dual' sPAPR IRQ backend supports both interrupt mode, XIVE
exploitation mode and the legacy compatibility mode (XICS). both modes
are not supported at the same time.

The machine starts with the legacy mode and a new interrupt mode can
then be negotiated by the CAS process. In this case, the new mode is
activated after a reset to take into account the required changes in
the machine. These impact the device tree layout, the interrupt
presenter object and the exposed MMIO regions in the case of XIVE.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2019-01-02 06:57:42 +01:00 • committed by David Gibson
parent 72c1e5a66a
commit 13db0cd9b8
4 changed files with 198 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/hw/ppc/spapr_irq.h
View file

@ -52,6 +52,7 @@ typedef struct sPAPRIrq {
extern sPAPRIrq spapr_irq_xics;
extern sPAPRIrq spapr_irq_xics_legacy;
extern sPAPRIrq spapr_irq_xive;
extern sPAPRIrq spapr_irq_dual;
void spapr_irq_init(sPAPRMachineState *spapr, Error **errp);
int spapr_irq_claim(sPAPRMachineState *spapr, int irq, bool lsi, Error **errp);