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xics: Handle KVM interrupt presentation from "simple" ICS code

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We want to use the "simple" ICS type in both KVM and non-KVM setups.
Teach the "simple" ICS how to present interrupts to KVM and adapt
sPAPR accordingly.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155023082996.1011724.16237920586343905010.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2019-02-15 12:40:30 +01:00 • committed by David Gibson
parent f1f5b701b8
commit 557b456729
4 changed files with 8 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

5
hw/intc/xics.c
View file

@ -466,6 +466,11 @@ void ics_simple_set_irq(void *opaque, int srcno, int val)
{ {
ICSState *ics = (ICSState *)opaque; ICSState *ics = (ICSState *)opaque;
if (kvm_irqchip_in_kernel()) {
ics_kvm_set_irq(ics, srcno, val);
return;
}
if (ics->irqs[srcno].flags & XICS_FLAGS_IRQ_LSI) { if (ics->irqs[srcno].flags & XICS_FLAGS_IRQ_LSI) {
ics_simple_set_irq_lsi(ics, srcno, val); ics_simple_set_irq_lsi(ics, srcno, val);
} else { } else {

3
hw/intc/xics_kvm.c
View file

@ -259,9 +259,8 @@ int ics_set_kvm_state(ICSState *ics)
return 0; return 0;
} }
void ics_kvm_set_irq(void *opaque, int srcno, int val) void ics_kvm_set_irq(ICSState *ics, int srcno, int val)
{ {
ICSState *ics = opaque;
struct kvm_irq_level args; struct kvm_irq_level args;
int rc; int rc;

5
hw/ppc/spapr_irq.c
View file

@ -222,13 +222,8 @@ static int spapr_irq_post_load_xics(sPAPRMachineState *spapr, int version_id)
static void spapr_irq_set_irq_xics(void *opaque, int srcno, int val) static void spapr_irq_set_irq_xics(void *opaque, int srcno, int val)
{ {
sPAPRMachineState *spapr = opaque; sPAPRMachineState *spapr = opaque;
MachineState *machine = MACHINE(opaque);
if (kvm_enabled() && machine_kernel_irqchip_allowed(machine)) {
ics_kvm_set_irq(spapr->ics, srcno, val);
} else {
ics_simple_set_irq(spapr->ics, srcno, val); ics_simple_set_irq(spapr->ics, srcno, val);
}
} }
static void spapr_irq_reset_xics(sPAPRMachineState *spapr, Error **errp) static void spapr_irq_reset_xics(sPAPRMachineState *spapr, Error **errp)

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

@ -180,7 +180,6 @@ void icp_eoi(ICPState *icp, uint32_t xirr);
void ics_simple_write_xive(ICSState *ics, int nr, int server, void ics_simple_write_xive(ICSState *ics, int nr, int server,
uint8_t priority, uint8_t saved_priority); uint8_t priority, uint8_t saved_priority);
void ics_simple_set_irq(void *opaque, int srcno, int val); void ics_simple_set_irq(void *opaque, int srcno, int val);
void ics_kvm_set_irq(void *opaque, int srcno, int val);
void ics_set_irq_type(ICSState *ics, int srcno, bool lsi); void ics_set_irq_type(ICSState *ics, int srcno, bool lsi);
void icp_pic_print_info(ICPState *icp, Monitor *mon); void icp_pic_print_info(ICPState *icp, Monitor *mon);
@ -201,5 +200,6 @@ void icp_kvm_realize(DeviceState *dev, Error **errp);
void ics_get_kvm_state(ICSState *ics); void ics_get_kvm_state(ICSState *ics);
int ics_set_kvm_state(ICSState *ics); int ics_set_kvm_state(ICSState *ics);
void ics_synchronize_state(ICSState *ics); void ics_synchronize_state(ICSState *ics);
void ics_kvm_set_irq(ICSState *ics, int srcno, int val);
#endif /* XICS_H */ #endif /* XICS_H */