#include "hw/pci/pci.h"
#include "hw/xen/xen.h"
+#include "hw/i386/pc.h"
#include "hw/xen/xen_backend.h"
#include "xen_pt.h"
#include "qemu/range.h"
static uint32_t xen_pt_pci_read_config(PCIDevice *d, uint32_t addr, int len)
{
- XenPCIPassthroughState *s = DO_UPCAST(XenPCIPassthroughState, dev, d);
+ XenPCIPassthroughState *s = XEN_PT_DEVICE(d);
uint32_t val = 0;
XenPTRegGroup *reg_grp_entry = NULL;
XenPTReg *reg_entry = NULL;
static void xen_pt_pci_write_config(PCIDevice *d, uint32_t addr,
uint32_t val, int len)
{
- XenPCIPassthroughState *s = DO_UPCAST(XenPCIPassthroughState, dev, d);
+ XenPCIPassthroughState *s = XEN_PT_DEVICE(d);
int index = 0;
XenPTRegGroup *reg_grp_entry = NULL;
int rc = 0;
}
}
- /* need to shift back before passing them to xen_host_pci_device */
+ /* need to shift back before passing them to xen_host_pci_set_block. */
val >>= (addr & 3) << 3;
memory_region_transaction_commit();
(uint8_t *)&val + index, len);
if (rc < 0) {
- XEN_PT_ERR(d, "pci_write_block failed. return value: %d.\n", rc);
+ XEN_PT_ERR(d, "xen_host_pci_set_block failed. return value: %d.\n", rc);
}
}
}
d->rom.size, d->rom.base_addr);
}
+ xen_pt_register_vga_regions(d);
return 0;
}
guest_port, machine_port, size,
op);
if (rc) {
- XEN_PT_ERR(d, "%s ioport mapping failed! (rc: %i)\n",
- adding ? "create new" : "remove old", rc);
+ XEN_PT_ERR(d, "%s ioport mapping failed! (err: %i)\n",
+ adding ? "create new" : "remove old", errno);
}
} else {
pcibus_t guest_addr = sec->offset_within_address_space;
XEN_PFN(size + XC_PAGE_SIZE - 1),
op);
if (rc) {
- XEN_PT_ERR(d, "%s mem mapping failed! (rc: %i)\n",
- adding ? "create new" : "remove old", rc);
+ XEN_PT_ERR(d, "%s mem mapping failed! (err: %i)\n",
+ adding ? "create new" : "remove old", errno);
}
}
}
.priority = 10,
};
+static void
+xen_igd_passthrough_isa_bridge_create(XenPCIPassthroughState *s,
+ XenHostPCIDevice *dev)
+{
+ uint16_t gpu_dev_id;
+ PCIDevice *d = &s->dev;
+
+ gpu_dev_id = dev->device_id;
+ igd_passthrough_isa_bridge_create(d->bus, gpu_dev_id);
+}
+
/* init */
static int xen_pt_initfn(PCIDevice *d)
{
- XenPCIPassthroughState *s = DO_UPCAST(XenPCIPassthroughState, dev, d);
+ XenPCIPassthroughState *s = XEN_PT_DEVICE(d);
int rc = 0;
- uint8_t machine_irq = 0;
+ uint8_t machine_irq = 0, scratch;
uint16_t cmd = 0;
int pirq = XEN_PT_UNASSIGNED_PIRQ;
/* Initialize virtualized PCI configuration (Extended 256 Bytes) */
if (xen_host_pci_get_block(&s->real_device, 0, d->config,
- PCI_CONFIG_SPACE_SIZE) == -1) {
+ PCI_CONFIG_SPACE_SIZE) < 0) {
xen_host_pci_device_put(&s->real_device);
return -1;
}
s->memory_listener = xen_pt_memory_listener;
s->io_listener = xen_pt_io_listener;
+ /* Setup VGA bios for passthrough GFX */
+ if ((s->real_device.domain == 0) && (s->real_device.bus == 0) &&
+ (s->real_device.dev == 2) && (s->real_device.func == 0)) {
+ if (!is_igd_vga_passthrough(&s->real_device)) {
+ XEN_PT_ERR(d, "Need to enable igd-passthru if you're trying"
+ " to passthrough IGD GFX.\n");
+ xen_host_pci_device_put(&s->real_device);
+ return -1;
+ }
+
+ if (xen_pt_setup_vga(s, &s->real_device) < 0) {
+ XEN_PT_ERR(d, "Setup VGA BIOS of passthrough GFX failed!\n");
+ xen_host_pci_device_put(&s->real_device);
+ return -1;
+ }
+
+ /* Register ISA bridge for passthrough GFX. */
+ xen_igd_passthrough_isa_bridge_create(s, &s->real_device);
+ }
+
/* Handle real device's MMIO/PIO BARs */
xen_pt_register_regions(s, &cmd);
}
/* Bind interrupt */
- if (!s->dev.config[PCI_INTERRUPT_PIN]) {
+ rc = xen_host_pci_get_byte(&s->real_device, PCI_INTERRUPT_PIN, &scratch);
+ if (rc) {
+ XEN_PT_ERR(d, "Failed to read PCI_INTERRUPT_PIN! (rc:%d)\n", rc);
+ scratch = 0;
+ }
+ if (!scratch) {
XEN_PT_LOG(d, "no pin interrupt\n");
goto out;
}
rc = xc_physdev_map_pirq(xen_xc, xen_domid, machine_irq, &pirq);
if (rc < 0) {
- XEN_PT_ERR(d, "Mapping machine irq %u to pirq %i failed, (rc: %d)\n",
- machine_irq, pirq, rc);
+ XEN_PT_ERR(d, "Mapping machine irq %u to pirq %i failed, (err: %d)\n",
+ machine_irq, pirq, errno);
/* Disable PCI intx assertion (turn on bit10 of devctl) */
cmd |= PCI_COMMAND_INTX_DISABLE;
PCI_SLOT(d->devfn),
e_intx);
if (rc < 0) {
- XEN_PT_ERR(d, "Binding of interrupt %i failed! (rc: %d)\n",
- e_intx, rc);
+ XEN_PT_ERR(d, "Binding of interrupt %i failed! (err: %d)\n",
+ e_intx, errno);
/* Disable PCI intx assertion (turn on bit10 of devctl) */
cmd |= PCI_COMMAND_INTX_DISABLE;
if (xen_pt_mapped_machine_irq[machine_irq] == 0) {
if (xc_physdev_unmap_pirq(xen_xc, xen_domid, machine_irq)) {
XEN_PT_ERR(d, "Unmapping of machine interrupt %i failed!"
- " (rc: %d)\n", machine_irq, rc);
+ " (err: %d)\n", machine_irq, errno);
}
}
s->machine_irq = 0;
out:
if (cmd) {
- xen_host_pci_set_word(&s->real_device, PCI_COMMAND,
- pci_get_word(d->config + PCI_COMMAND) | cmd);
+ uint16_t val;
+
+ rc = xen_host_pci_get_word(&s->real_device, PCI_COMMAND, &val);
+ if (rc) {
+ XEN_PT_ERR(d, "Failed to read PCI_COMMAND! (rc: %d)\n", rc);
+ } else {
+ val |= cmd;
+ rc = xen_host_pci_set_word(&s->real_device, PCI_COMMAND, val);
+ if (rc) {
+ XEN_PT_ERR(d, "Failed to write PCI_COMMAND val=0x%x!(rc: %d)\n",
+ val, rc);
+ }
+ }
}
memory_listener_register(&s->memory_listener, &s->dev.bus_master_as);
memory_listener_register(&s->io_listener, &address_space_io);
+ s->listener_set = true;
XEN_PT_LOG(d,
"Real physical device %02x:%02x.%d registered successfully!\n",
s->hostaddr.bus, s->hostaddr.slot, s->hostaddr.function);
static void xen_pt_unregister_device(PCIDevice *d)
{
- XenPCIPassthroughState *s = DO_UPCAST(XenPCIPassthroughState, dev, d);
+ XenPCIPassthroughState *s = XEN_PT_DEVICE(d);
+ XenHostPCIDevice *host_dev = &s->real_device;
uint8_t machine_irq = s->machine_irq;
- uint8_t intx = xen_pt_pci_intx(s);
+ uint8_t intx;
int rc;
- if (machine_irq) {
+ if (machine_irq && !xen_host_pci_device_closed(&s->real_device)) {
+ intx = xen_pt_pci_intx(s);
rc = xc_domain_unbind_pt_irq(xen_xc, xen_domid, machine_irq,
PT_IRQ_TYPE_PCI,
pci_bus_num(d->bus),
0 /* isa_irq */);
if (rc < 0) {
XEN_PT_ERR(d, "unbinding of interrupt INT%c failed."
- " (machine irq: %i, rc: %d)"
+ " (machine irq: %i, err: %d)"
" But bravely continuing on..\n",
- 'a' + intx, machine_irq, rc);
+ 'a' + intx, machine_irq, errno);
}
}
+ /* N.B. xen_pt_config_delete takes care of freeing them. */
if (s->msi) {
xen_pt_msi_disable(s);
}
rc = xc_physdev_unmap_pirq(xen_xc, xen_domid, machine_irq);
if (rc < 0) {
- XEN_PT_ERR(d, "unmapping of interrupt %i failed. (rc: %d)"
+ XEN_PT_ERR(d, "unmapping of interrupt %i failed. (err: %d)"
" But bravely continuing on..\n",
- machine_irq, rc);
+ machine_irq, errno);
}
}
+ s->machine_irq = 0;
}
/* delete all emulated config registers */
xen_pt_config_delete(s);
- memory_listener_unregister(&s->memory_listener);
- memory_listener_unregister(&s->io_listener);
+ xen_pt_unregister_vga_regions(host_dev);
- xen_host_pci_device_put(&s->real_device);
+ if (s->listener_set) {
+ memory_listener_unregister(&s->memory_listener);
+ memory_listener_unregister(&s->io_listener);
+ s->listener_set = false;
+ }
+ if (!xen_host_pci_device_closed(&s->real_device)) {
+ xen_host_pci_device_put(&s->real_device);
+ }
}
static Property xen_pci_passthrough_properties[] = {
};
static const TypeInfo xen_pci_passthrough_info = {
- .name = "xen-pci-passthrough",
+ .name = TYPE_XEN_PT_DEVICE,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(XenPCIPassthroughState),
.class_init = xen_pci_passthrough_class_init,
projects / qemu.git / blobdiff