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kvm: introduce kvm_arch_msi_data_to_gsi 

On ARM the MSI data corresponds to the shared peripheral interrupt (SPI)
ID. This latter equals to the SPI index + 32. to retrieve the SPI index,
matching the gsi, an architecture specific function is introduced.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Eric Auger 2015-06-02 14:56:23 +01:00 committed by Peter Maydell
parent 0b2ff2ceb8
commit 1850b6b7d0
7 changed files with 28 additions and 1 deletions
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2
include/sysemu/kvm.h
View File

@ -287,6 +287,8 @@ void kvm_arch_init_irq_routing(KVMState *s);
int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
uint64_t address, uint32_t data);
int kvm_arch_msi_data_to_gsi(uint32_t data);
int kvm_set_irq(KVMState *s, int irq, int level);
int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg);

2
kvm-all.c
View File

@ -1228,7 +1228,7 @@ int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
int virq;
if (kvm_gsi_direct_mapping()) {
return msg.data & 0xffff;
return kvm_arch_msi_data_to_gsi(msg.data);
}
if (!kvm_gsi_routing_enabled()) {

5
target-arm/kvm.c
View File

@ -600,3 +600,8 @@ int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
{
return 0;
}
int kvm_arch_msi_data_to_gsi(uint32_t data)
{
return (data - 32) & 0xffff;
}

5
target-i386/kvm.c
View File

@ -2766,3 +2766,8 @@ int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
{
return 0;
}
int kvm_arch_msi_data_to_gsi(uint32_t data)
{
abort();
}

5
target-mips/kvm.c
View File

@ -696,3 +696,8 @@ int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
{
return 0;
}
int kvm_arch_msi_data_to_gsi(uint32_t data)
{
abort();
}

5
target-ppc/kvm.c
View File

@ -2410,3 +2410,8 @@ int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
{
return 0;
}
int kvm_arch_msi_data_to_gsi(uint32_t data)
{
return data & 0xffff;
}

5
target-s390x/kvm.c
View File

@ -2216,3 +2216,8 @@ int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
route->u.adapter.adapter_id = pbdev->routes.adapter.adapter_id;
return 0;
}
int kvm_arch_msi_data_to_gsi(uint32_t data)
{
abort();
}