diff options
| -rw-r--r-- | hw/pc.h | 1 | ||||
| -rw-r--r-- | hw/pc_piix.c | 6 | ||||
| -rw-r--r-- | hw/piix_pci.c | 49 | ||||
| -rw-r--r-- | hw/xen.h | 6 | ||||
| -rw-r--r-- | xen-all.c | 31 | ||||
| -rw-r--r-- | xen-stub.c | 13 |
6 files changed, 102 insertions, 4 deletions
@@ -176,6 +176,7 @@ struct PCII440FXState; typedef struct PCII440FXState PCII440FXState; PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix_devfn, qemu_irq *pic, ram_addr_t ram_size); +PCIBus *i440fx_xen_init(PCII440FXState **pi440fx_state, int *piix3_devfn, qemu_irq *pic, ram_addr_t ram_size); void i440fx_init_memory_mappings(PCII440FXState *d); /* piix4.c */ diff --git a/hw/pc_piix.c b/hw/pc_piix.c index e814f00..9353b91 100644 --- a/hw/pc_piix.c +++ b/hw/pc_piix.c @@ -120,7 +120,11 @@ static void pc_init1(ram_addr_t ram_size, isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24); if (pci_enabled) { - pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size); + if (!xen_enabled()) { + pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size); + } else { + pci_bus = i440fx_xen_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size); + } } else { pci_bus = NULL; i440fx_state = NULL; diff --git a/hw/piix_pci.c b/hw/piix_pci.c index 5f0d92f..7f1c4cc 100644 --- a/hw/piix_pci.c +++ b/hw/piix_pci.c @@ -29,6 +29,7 @@ #include "isa.h" #include "sysbus.h" #include "range.h" +#include "xen.h" /* * I440FX chipset data sheet. @@ -172,6 +173,13 @@ static void i440fx_write_config(PCIDevice *dev, } } +static void i440fx_write_config_xen(PCIDevice *dev, + uint32_t address, uint32_t val, int len) +{ + xen_piix_pci_write_config_client(address, val, len); + i440fx_write_config(dev, address, val, len); +} + static int i440fx_load_old(QEMUFile* f, void *opaque, int version_id) { PCII440FXState *d = opaque; @@ -239,7 +247,10 @@ static int i440fx_initfn(PCIDevice *dev) return 0; } -PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix3_devfn, qemu_irq *pic, ram_addr_t ram_size) +static PCIBus *i440fx_common_init(const char *device_name, + PCII440FXState **pi440fx_state, + int *piix3_devfn, + qemu_irq *pic, ram_addr_t ram_size) { DeviceState *dev; PCIBus *b; @@ -253,13 +264,13 @@ PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix3_devfn, qemu_irq * s->bus = b; qdev_init_nofail(dev); - d = pci_create_simple(b, 0, "i440FX"); + d = pci_create_simple(b, 0, device_name); *pi440fx_state = DO_UPCAST(PCII440FXState, dev, d); piix3 = DO_UPCAST(PIIX3State, dev, pci_create_simple_multifunction(b, -1, true, "PIIX3")); piix3->pic = pic; - pci_bus_irqs(b, piix3_set_irq, pci_slot_get_pirq, piix3, PIIX_NUM_PIRQS); + (*pi440fx_state)->piix3 = piix3; *piix3_devfn = piix3->dev.devfn; @@ -272,6 +283,30 @@ PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix3_devfn, qemu_irq * return b; } +PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix3_devfn, + qemu_irq *pic, ram_addr_t ram_size) +{ + PCIBus *b; + + b = i440fx_common_init("i440FX", pi440fx_state, piix3_devfn, pic, ram_size); + pci_bus_irqs(b, piix3_set_irq, pci_slot_get_pirq, (*pi440fx_state)->piix3, + PIIX_NUM_PIRQS); + + return b; +} + +PCIBus *i440fx_xen_init(PCII440FXState **pi440fx_state, int *piix3_devfn, + qemu_irq *pic, ram_addr_t ram_size) +{ + PCIBus *b; + + b = i440fx_common_init("i440FX-xen", pi440fx_state, piix3_devfn, pic, ram_size); + pci_bus_irqs(b, xen_piix3_set_irq, xen_pci_slot_get_pirq, + (*pi440fx_state)->piix3, PIIX_NUM_PIRQS); + + return b; +} + /* PIIX3 PCI to ISA bridge */ static void piix3_set_irq_pic(PIIX3State *piix3, int pic_irq) { @@ -430,6 +465,14 @@ static PCIDeviceInfo i440fx_info[] = { .init = i440fx_initfn, .config_write = i440fx_write_config, },{ + .qdev.name = "i440FX-xen", + .qdev.desc = "Host bridge", + .qdev.size = sizeof(PCII440FXState), + .qdev.vmsd = &vmstate_i440fx, + .qdev.no_user = 1, + .init = i440fx_initfn, + .config_write = i440fx_write_config_xen, + },{ .qdev.name = "PIIX3", .qdev.desc = "ISA bridge", .qdev.size = sizeof(PIIX3State), @@ -8,6 +8,8 @@ */ #include <inttypes.h> +#include "qemu-common.h" + /* xen-machine.c */ enum xen_mode { XEN_EMULATE = 0, // xen emulation, using xenner (default) @@ -29,6 +31,10 @@ static inline int xen_enabled(void) #endif } +int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num); +void xen_piix3_set_irq(void *opaque, int irq_num, int level); +void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len); + int xen_init(void); int xen_hvm_init(void); void xen_vcpu_init(void); @@ -6,9 +6,40 @@ * */ +#include "hw/pci.h" #include "hw/xen_common.h" #include "hw/xen_backend.h" +/* Xen specific function for piix pci */ + +int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num) +{ + return irq_num + ((pci_dev->devfn >> 3) << 2); +} + +void xen_piix3_set_irq(void *opaque, int irq_num, int level) +{ + xc_hvm_set_pci_intx_level(xen_xc, xen_domid, 0, 0, irq_num >> 2, + irq_num & 3, level); +} + +void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len) +{ + int i; + + /* Scan for updates to PCI link routes (0x60-0x63). */ + for (i = 0; i < len; i++) { + uint8_t v = (val >> (8 * i)) & 0xff; + if (v & 0x80) { + v = 0; + } + v &= 0xf; + if (((address + i) >= 0x60) && ((address + i) <= 0x63)) { + xc_hvm_set_pci_link_route(xen_xc, xen_domid, address + i - 0x60, v); + } + } +} + /* VCPU Operations, MMIO, IO ring ... */ static void xen_reset_vcpu(void *opaque) @@ -9,6 +9,19 @@ #include "qemu-common.h" #include "hw/xen.h" +int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num) +{ + return -1; +} + +void xen_piix3_set_irq(void *opaque, int irq_num, int level) +{ +} + +void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len) +{ +} + int xen_init(void) { return -ENOSYS; |