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spapr: Make PHB placement functions and spapr_pre_plug_phb() return status

Browse source 
Read documentation in "qapi/error.h" and changelog of commit
e3fe3988d7 ("error: Document Error API usage rules") for
rationale.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20201120234208.683521-7-groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2020-11-21 00:42:05 +01:00 committed by David Gibson
parent ea042c53f4
commit f5598c92b8
2 changed files with 24 additions and 18 deletions
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40
hw/ppc/spapr.c
View file

@ -3879,7 +3879,7 @@ int spapr_phb_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr,
return 0;
}
static void spapr_phb_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
static bool spapr_phb_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp)
{
SpaprMachineState *spapr = SPAPR_MACHINE(OBJECT(hotplug_dev));
@ -3889,24 +3889,25 @@ static void spapr_phb_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
if (dev->hotplugged && !smc->dr_phb_enabled) {
error_setg(errp, "PHB hotplug not supported for this machine");
return;
return false;
}
if (sphb->index == (uint32_t)-1) {
error_setg(errp, "\"index\" for PAPR PHB is mandatory");
return;
return false;
}
/*
* This will check that sphb->index doesn't exceed the maximum number of
* PHBs for the current machine type.
*/
smc->phb_placement(spapr, sphb->index,
&sphb->buid, &sphb->io_win_addr,
&sphb->mem_win_addr, &sphb->mem64_win_addr,
windows_supported, sphb->dma_liobn,
&sphb->nv2_gpa_win_addr, &sphb->nv2_atsd_win_addr,
errp);
return
smc->phb_placement(spapr, sphb->index,
&sphb->buid, &sphb->io_win_addr,
&sphb->mem_win_addr, &sphb->mem64_win_addr,
windows_supported, sphb->dma_liobn,
&sphb->nv2_gpa_win_addr, &sphb->nv2_atsd_win_addr,
errp);
}
static void spapr_phb_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
@ -4144,7 +4145,7 @@ static const CPUArchIdList *spapr_possible_cpu_arch_ids(MachineState *machine)
return machine->possible_cpus;
}
static void spapr_phb_placement(SpaprMachineState *spapr, uint32_t index,
static bool spapr_phb_placement(SpaprMachineState *spapr, uint32_t index,
uint64_t *buid, hwaddr *pio,
hwaddr *mmio32, hwaddr *mmio64,
unsigned n_dma, uint32_t *liobns,
@ -4182,7 +4183,7 @@ static void spapr_phb_placement(SpaprMachineState *spapr, uint32_t index,
if (index >= SPAPR_MAX_PHBS) {
error_setg(errp, "\"index\" for PAPR PHB is too large (max %llu)",
SPAPR_MAX_PHBS - 1);
return;
return false;
}
*buid = base_buid + index;
@ -4196,6 +4197,7 @@ static void spapr_phb_placement(SpaprMachineState *spapr, uint32_t index,
*nv2gpa = SPAPR_PCI_NV2RAM64_WIN_BASE + index * SPAPR_PCI_NV2RAM64_WIN_SIZE;
*nv2atsd = SPAPR_PCI_NV2ATSD_WIN_BASE + index * SPAPR_PCI_NV2ATSD_WIN_SIZE;
return true;
}
static ICSState *spapr_ics_get(XICSFabric *dev, int irq)
@ -4586,18 +4588,21 @@ DEFINE_SPAPR_MACHINE(4_1, "4.1", false);
/*
* pseries-4.0
*/
static void phb_placement_4_0(SpaprMachineState *spapr, uint32_t index,
static bool phb_placement_4_0(SpaprMachineState *spapr, uint32_t index,
uint64_t *buid, hwaddr *pio,
hwaddr *mmio32, hwaddr *mmio64,
unsigned n_dma, uint32_t *liobns,
hwaddr *nv2gpa, hwaddr *nv2atsd, Error **errp)
{
spapr_phb_placement(spapr, index, buid, pio, mmio32, mmio64, n_dma, liobns,
nv2gpa, nv2atsd, errp);
if (!spapr_phb_placement(spapr, index, buid, pio, mmio32, mmio64, n_dma,
liobns, nv2gpa, nv2atsd, errp)) {
return false;
}
*nv2gpa = 0;
*nv2atsd = 0;
return true;
}
static void spapr_machine_4_0_class_options(MachineClass *mc)
{
SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
@ -4757,7 +4762,7 @@ DEFINE_SPAPR_MACHINE(2_8, "2.8", false);
* pseries-2.7
*/
static void phb_placement_2_7(SpaprMachineState *spapr, uint32_t index,
static bool phb_placement_2_7(SpaprMachineState *spapr, uint32_t index,
uint64_t *buid, hwaddr *pio,
hwaddr *mmio32, hwaddr *mmio64,
unsigned n_dma, uint32_t *liobns,
@ -4789,7 +4794,7 @@ static void phb_placement_2_7(SpaprMachineState *spapr, uint32_t index,
if (index > max_index) {
error_setg(errp, "\"index\" for PAPR PHB is too large (max %u)",
max_index);
return;
return false;
}
*buid = base_buid + index;
@ -4808,6 +4813,7 @@ static void phb_placement_2_7(SpaprMachineState *spapr, uint32_t index,
*nv2gpa = 0;
*nv2atsd = 0;
return true;
}
static void spapr_machine_2_7_class_options(MachineClass *mc)

2
include/hw/ppc/spapr.h
View file

@ -140,7 +140,7 @@ struct SpaprMachineClass {
bool pre_5_1_assoc_refpoints;
bool pre_5_2_numa_associativity;
void (*phb_placement)(SpaprMachineState *spapr, uint32_t index,
bool (*phb_placement)(SpaprMachineState *spapr, uint32_t index,
uint64_t *buid, hwaddr *pio,
hwaddr *mmio32, hwaddr *mmio64,
unsigned n_dma, uint32_t *liobns, hwaddr *nv2gpa,