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spapr_pci: provide node start offset via spapr_populate_pci_dt()

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PHB hotplug re-uses PHB device tree generation code and passes
it to a guest via RTAS. Doing this requires knowledge of where
exactly in the device tree the node describing the PHB begins.

Provide this via a new optional pointer that can be used to
store the PHB node's start offset.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155059671912.1466090.10891589403973703473.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Michael Roth
2019-02-19 18:18:39 +01:00
committed by David Gibson
parent 4b6d336f2c
commit 0a0a66cd1b
3 changed files with 6 additions and 3 deletions
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2
include/hw/pci-host/spapr.h
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@@ -113,7 +113,7 @@ static inline qemu_irq spapr_phb_lsi_qirq(struct sPAPRPHBState *phb, int pin)
}
int spapr_populate_pci_dt(sPAPRPHBState *phb, uint32_t intc_phandle, void *fdt,
uint32_t nr_msis);
uint32_t nr_msis, int *node_offset);
void spapr_pci_rtas_init(void);