diff options
| -rw-r--r-- | hw/kvm/apic.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/hw/kvm/apic.c b/hw/kvm/apic.c index ffe7a521b7..8ba4079025 100644 --- a/hw/kvm/apic.c +++ b/hw/kvm/apic.c @@ -10,6 +10,7 @@ * See the COPYING file in the top-level directory. */ #include "hw/apic_internal.h" +#include "hw/msi.h" #include "kvm.h" static inline void kvm_apic_set_reg(struct kvm_lapic_state *kapic, @@ -145,10 +146,39 @@ static void kvm_apic_external_nmi(APICCommonState *s) run_on_cpu(s->cpu_env, do_inject_external_nmi, s); } +static uint64_t kvm_apic_mem_read(void *opaque, target_phys_addr_t addr, + unsigned size) +{ + return ~(uint64_t)0; +} + +static void kvm_apic_mem_write(void *opaque, target_phys_addr_t addr, + uint64_t data, unsigned size) +{ + MSIMessage msg = { .address = addr, .data = data }; + int ret; + + ret = kvm_irqchip_send_msi(kvm_state, msg); + if (ret < 0) { + fprintf(stderr, "KVM: injection failed, MSI lost (%s)\n", + strerror(-ret)); + } +} + +static const MemoryRegionOps kvm_apic_io_ops = { + .read = kvm_apic_mem_read, + .write = kvm_apic_mem_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + static void kvm_apic_init(APICCommonState *s) { - memory_region_init_reservation(&s->io_memory, "kvm-apic-msi", - MSI_SPACE_SIZE); + memory_region_init_io(&s->io_memory, &kvm_apic_io_ops, s, "kvm-apic-msi", + MSI_SPACE_SIZE); + + if (kvm_has_gsi_routing()) { + msi_supported = true; + } } static void kvm_apic_class_init(ObjectClass *klass, void *data) |