aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorDavid Gibson <david@gibson.dropbear.id.au>2019-09-26 23:02:41 +1000
committerDavid Gibson <david@gibson.dropbear.id.au>2019-10-24 09:36:55 +1100
commit0a17e0c39f73080e6d5c4d9a2033a5bd475c416c (patch)
tree975154567929a2b8ad2ea251a9782331b8ed8612
parent98a39a7927b510fcdd29f8237b67368a66121c84 (diff)
downloadqemu-0a17e0c39f73080e6d5c4d9a2033a5bd475c416c.zip
qemu-0a17e0c39f73080e6d5c4d9a2033a5bd475c416c.tar.gz
qemu-0a17e0c39f73080e6d5c4d9a2033a5bd475c416c.tar.bz2
spapr: Remove SpaprIrq::init_kvm hook
This hook is a bit odd. The only caller is spapr_irq_init_kvm(), but it explicitly takes an SpaprIrq *, so it's never really called through the current SpaprIrq. Essentially this is just a way of passing through a function pointer so that spapr_irq_init_kvm() can handle some configuration and error handling logic without duplicating it between the xics and xive reset paths. So, make it just take that function pointer. Because of earlier reworks to the KVM connect/disconnect code in the xics and xive backends we can also eliminate some wrapper functions and streamline error handling a bit. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Cédric Le Goater <clg@kaod.org>
-rw-r--r--hw/ppc/spapr_irq.c74
-rw-r--r--include/hw/ppc/spapr_irq.h1
2 files changed, 25 insertions, 50 deletions
diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
index 5c8ffb2..7cd18e5 100644
--- a/hw/ppc/spapr_irq.c
+++ b/hw/ppc/spapr_irq.c
@@ -65,33 +65,35 @@ void spapr_irq_msi_free(SpaprMachineState *spapr, int irq, uint32_t num)
bitmap_clear(spapr->irq_map, irq - SPAPR_IRQ_MSI, num);
}
-static void spapr_irq_init_kvm(SpaprMachineState *spapr,
- SpaprIrq *irq, Error **errp)
+static int spapr_irq_init_kvm(int (*fn)(SpaprInterruptController *, Error **),
+ SpaprInterruptController *intc,
+ Error **errp)
{
- MachineState *machine = MACHINE(spapr);
+ MachineState *machine = MACHINE(qdev_get_machine());
Error *local_err = NULL;
if (kvm_enabled() && machine_kernel_irqchip_allowed(machine)) {
- irq->init_kvm(spapr, &local_err);
- if (local_err && machine_kernel_irqchip_required(machine)) {
- error_prepend(&local_err,
- "kernel_irqchip requested but unavailable: ");
- error_propagate(errp, local_err);
- return;
- }
+ if (fn(intc, &local_err) < 0) {
+ if (machine_kernel_irqchip_required(machine)) {
+ error_prepend(&local_err,
+ "kernel_irqchip requested but unavailable: ");
+ error_propagate(errp, local_err);
+ return -1;
+ }
- if (!local_err) {
- return;
+ /*
+ * We failed to initialize the KVM device, fallback to
+ * emulated mode
+ */
+ error_prepend(&local_err,
+ "kernel_irqchip allowed but unavailable: ");
+ error_append_hint(&local_err,
+ "Falling back to kernel-irqchip=off\n");
+ warn_report_err(local_err);
}
-
- /*
- * We failed to initialize the KVM device, fallback to
- * emulated mode
- */
- error_prepend(&local_err, "kernel_irqchip allowed but unavailable: ");
- error_append_hint(&local_err, "Falling back to kernel-irqchip=off\n");
- warn_report_err(local_err);
}
+
+ return 0;
}
/*
@@ -112,20 +114,7 @@ static int spapr_irq_post_load_xics(SpaprMachineState *spapr, int version_id)
static void spapr_irq_reset_xics(SpaprMachineState *spapr, Error **errp)
{
- Error *local_err = NULL;
-
- spapr_irq_init_kvm(spapr, &spapr_irq_xics, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
-}
-
-static void spapr_irq_init_kvm_xics(SpaprMachineState *spapr, Error **errp)
-{
- if (kvm_enabled()) {
- xics_kvm_connect(SPAPR_INTC(spapr->ics), errp);
- }
+ spapr_irq_init_kvm(xics_kvm_connect, SPAPR_INTC(spapr->ics), errp);
}
SpaprIrq spapr_irq_xics = {
@@ -136,7 +125,6 @@ SpaprIrq spapr_irq_xics = {
.post_load = spapr_irq_post_load_xics,
.reset = spapr_irq_reset_xics,
- .init_kvm = spapr_irq_init_kvm_xics,
};
/*
@@ -151,7 +139,6 @@ static int spapr_irq_post_load_xive(SpaprMachineState *spapr, int version_id)
static void spapr_irq_reset_xive(SpaprMachineState *spapr, Error **errp)
{
CPUState *cs;
- Error *local_err = NULL;
CPU_FOREACH(cs) {
PowerPCCPU *cpu = POWERPC_CPU(cs);
@@ -160,9 +147,8 @@ static void spapr_irq_reset_xive(SpaprMachineState *spapr, Error **errp)
spapr_xive_set_tctx_os_cam(spapr_cpu_state(cpu)->tctx);
}
- spapr_irq_init_kvm(spapr, &spapr_irq_xive, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ if (spapr_irq_init_kvm(kvmppc_xive_connect,
+ SPAPR_INTC(spapr->xive), errp) < 0) {
return;
}
@@ -170,13 +156,6 @@ static void spapr_irq_reset_xive(SpaprMachineState *spapr, Error **errp)
spapr_xive_mmio_set_enabled(spapr->xive, true);
}
-static void spapr_irq_init_kvm_xive(SpaprMachineState *spapr, Error **errp)
-{
- if (kvm_enabled()) {
- kvmppc_xive_connect(SPAPR_INTC(spapr->xive), errp);
- }
-}
-
SpaprIrq spapr_irq_xive = {
.nr_xirqs = SPAPR_NR_XIRQS,
.nr_msis = SPAPR_NR_MSIS,
@@ -185,7 +164,6 @@ SpaprIrq spapr_irq_xive = {
.post_load = spapr_irq_post_load_xive,
.reset = spapr_irq_reset_xive,
- .init_kvm = spapr_irq_init_kvm_xive,
};
/*
@@ -251,7 +229,6 @@ SpaprIrq spapr_irq_dual = {
.post_load = spapr_irq_post_load_dual,
.reset = spapr_irq_reset_dual,
- .init_kvm = NULL, /* should not be used */
};
@@ -675,7 +652,6 @@ SpaprIrq spapr_irq_xics_legacy = {
.post_load = spapr_irq_post_load_xics,
.reset = spapr_irq_reset_xics,
- .init_kvm = spapr_irq_init_kvm_xics,
};
static void spapr_irq_register_types(void)
diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
index 0df95e1..06179b2 100644
--- a/include/hw/ppc/spapr_irq.h
+++ b/include/hw/ppc/spapr_irq.h
@@ -85,7 +85,6 @@ typedef struct SpaprIrq {
int (*post_load)(SpaprMachineState *spapr, int version_id);
void (*reset)(SpaprMachineState *spapr, Error **errp);
- void (*init_kvm)(SpaprMachineState *spapr, Error **errp);
} SpaprIrq;
extern SpaprIrq spapr_irq_xics;