diff options
author | Wei Liu <wei.liu2@citrix.com> | 2012-04-12 10:02:47 +0000 |
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committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2012-04-13 17:34:21 +0000 |
commit | 9468e9c41a89b1c9f3a905b8959e1dd3f055c732 (patch) | |
tree | 286143660626abe4dc85165933db7ab0f766523f /hw/xen_apic.c | |
parent | f1dbf015dfb0aa7f66f710a1f1bc58b662951de2 (diff) |
Xen: Add xen-apic support and hook it up.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/xen_apic.c')
-rw-r--r-- | hw/xen_apic.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/hw/xen_apic.c b/hw/xen_apic.c new file mode 100644 index 0000000000..1725ff67dd --- /dev/null +++ b/hw/xen_apic.c @@ -0,0 +1,90 @@ +/* + * Xen basic APIC support + * + * Copyright (c) 2012 Citrix + * + * Authors: + * Wei Liu <wei.liu2@citrix.com> + * + * This work is licensed under the terms of the GNU GPL version 2 or + * later. See the COPYING file in the top-level directory. + */ +#include "hw/apic_internal.h" +#include "hw/msi.h" +#include "xen.h" + +static uint64_t xen_apic_mem_read(void *opaque, target_phys_addr_t addr, + unsigned size) +{ + return ~(uint64_t)0; +} + +static void xen_apic_mem_write(void *opaque, target_phys_addr_t addr, + uint64_t data, unsigned size) +{ + if (size != sizeof(uint32_t)) { + fprintf(stderr, "Xen: APIC write data size = %d, invalid\n", size); + return; + } + + xen_hvm_inject_msi(addr, data); +} + +static const MemoryRegionOps xen_apic_io_ops = { + .read = xen_apic_mem_read, + .write = xen_apic_mem_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void xen_apic_init(APICCommonState *s) +{ + memory_region_init_io(&s->io_memory, &xen_apic_io_ops, s, "xen-apic-msi", + MSI_SPACE_SIZE); +} + +static void xen_apic_set_base(APICCommonState *s, uint64_t val) +{ +} + +static void xen_apic_set_tpr(APICCommonState *s, uint8_t val) +{ +} + +static uint8_t xen_apic_get_tpr(APICCommonState *s) +{ + return 0; +} + +static void xen_apic_vapic_base_update(APICCommonState *s) +{ +} + +static void xen_apic_external_nmi(APICCommonState *s) +{ +} + +static void xen_apic_class_init(ObjectClass *klass, void *data) +{ + APICCommonClass *k = APIC_COMMON_CLASS(klass); + + k->init = xen_apic_init; + k->set_base = xen_apic_set_base; + k->set_tpr = xen_apic_set_tpr; + k->get_tpr = xen_apic_get_tpr; + k->vapic_base_update = xen_apic_vapic_base_update; + k->external_nmi = xen_apic_external_nmi; +} + +static TypeInfo xen_apic_info = { + .name = "xen-apic", + .parent = TYPE_APIC_COMMON, + .instance_size = sizeof(APICCommonState), + .class_init = xen_apic_class_init, +}; + +static void xen_apic_register_types(void) +{ + type_register_static(&xen_apic_info); +} + +type_init(xen_apic_register_types) |