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vfio/pci: Convert all MemoryRegion to dynamic alloc and consistent functions

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Match common vfio code with setup, exit, and finalize functions for
BAR, quirk, and VGA management.  VGA is also changed to dynamic
allocation to match the other MemoryRegions.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Alex Williamson 2016-03-10 09:39:08 -07:00
parent db0da029a1
commit 2d82f8a3cd
3 changed files with 71 additions and 91 deletions
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38
hw/vfio/pci-quirks.c
View File

@ -290,10 +290,10 @@ static void vfio_vga_probe_ati_3c3_quirk(VFIOPCIDevice *vdev)
memory_region_init_io(quirk->mem, OBJECT(vdev), &vfio_ati_3c3_quirk, vdev,
"vfio-ati-3c3-quirk", 1);
memory_region_add_subregion(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem,
memory_region_add_subregion(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].mem,
3 /* offset 3 bytes from 0x3c0 */, quirk->mem);
QLIST_INSERT_HEAD(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].quirks,
QLIST_INSERT_HEAD(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].quirks,
quirk, next);
trace_vfio_quirk_ati_3c3_probe(vdev->vbasedev.name);
@ -428,7 +428,7 @@ static uint64_t vfio_nvidia_3d4_quirk_read(void *opaque,
quirk->state = NONE;
return vfio_vga_read(&vdev->vga.region[QEMU_PCI_VGA_IO_HI],
return vfio_vga_read(&vdev->vga->region[QEMU_PCI_VGA_IO_HI],
addr + 0x14, size);
}
@ -465,7 +465,7 @@ static void vfio_nvidia_3d4_quirk_write(void *opaque, hwaddr addr,
break;
}
vfio_vga_write(&vdev->vga.region[QEMU_PCI_VGA_IO_HI],
vfio_vga_write(&vdev->vga->region[QEMU_PCI_VGA_IO_HI],
addr + 0x14, data, size);
}
@ -481,7 +481,7 @@ static uint64_t vfio_nvidia_3d0_quirk_read(void *opaque,
VFIONvidia3d0Quirk *quirk = opaque;
VFIOPCIDevice *vdev = quirk->vdev;
VFIONvidia3d0State old_state = quirk->state;
uint64_t data = vfio_vga_read(&vdev->vga.region[QEMU_PCI_VGA_IO_HI],
uint64_t data = vfio_vga_read(&vdev->vga->region[QEMU_PCI_VGA_IO_HI],
addr + 0x10, size);
quirk->state = NONE;
@ -523,7 +523,7 @@ static void vfio_nvidia_3d0_quirk_write(void *opaque, hwaddr addr,
}
}
vfio_vga_write(&vdev->vga.region[QEMU_PCI_VGA_IO_HI],
vfio_vga_write(&vdev->vga->region[QEMU_PCI_VGA_IO_HI],
addr + 0x10, data, size);
}
@ -551,15 +551,15 @@ static void vfio_vga_probe_nvidia_3d0_quirk(VFIOPCIDevice *vdev)
memory_region_init_io(&quirk->mem[0], OBJECT(vdev), &vfio_nvidia_3d4_quirk,
data, "vfio-nvidia-3d4-quirk", 2);
memory_region_add_subregion(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem,
memory_region_add_subregion(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].mem,
0x14 /* 0x3c0 + 0x14 */, &quirk->mem[0]);
memory_region_init_io(&quirk->mem[1], OBJECT(vdev), &vfio_nvidia_3d0_quirk,
data, "vfio-nvidia-3d0-quirk", 2);
memory_region_add_subregion(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem,
memory_region_add_subregion(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].mem,
0x10 /* 0x3c0 + 0x10 */, &quirk->mem[1]);
QLIST_INSERT_HEAD(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].quirks,
QLIST_INSERT_HEAD(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].quirks,
quirk, next);
trace_vfio_quirk_nvidia_3d0_probe(vdev->vbasedev.name);
@ -970,28 +970,28 @@ void vfio_vga_quirk_setup(VFIOPCIDevice *vdev)
vfio_vga_probe_nvidia_3d0_quirk(vdev);
}
void vfio_vga_quirk_teardown(VFIOPCIDevice *vdev)
void vfio_vga_quirk_exit(VFIOPCIDevice *vdev)
{
VFIOQuirk *quirk;
int i, j;
for (i = 0; i < ARRAY_SIZE(vdev->vga.region); i++) {
QLIST_FOREACH(quirk, &vdev->vga.region[i].quirks, next) {
for (i = 0; i < ARRAY_SIZE(vdev->vga->region); i++) {
QLIST_FOREACH(quirk, &vdev->vga->region[i].quirks, next) {
for (j = 0; j < quirk->nr_mem; j++) {
memory_region_del_subregion(&vdev->vga.region[i].mem,
memory_region_del_subregion(&vdev->vga->region[i].mem,
&quirk->mem[j]);
}
}
}
}
void vfio_vga_quirk_free(VFIOPCIDevice *vdev)
void vfio_vga_quirk_finalize(VFIOPCIDevice *vdev)
{
int i, j;
for (i = 0; i < ARRAY_SIZE(vdev->vga.region); i++) {
while (!QLIST_EMPTY(&vdev->vga.region[i].quirks)) {
VFIOQuirk *quirk = QLIST_FIRST(&vdev->vga.region[i].quirks);
for (i = 0; i < ARRAY_SIZE(vdev->vga->region); i++) {
while (!QLIST_EMPTY(&vdev->vga->region[i].quirks)) {
VFIOQuirk *quirk = QLIST_FIRST(&vdev->vga->region[i].quirks);
QLIST_REMOVE(quirk, next);
for (j = 0; j < quirk->nr_mem; j++) {
object_unparent(OBJECT(&quirk->mem[j]));
@ -1012,7 +1012,7 @@ void vfio_bar_quirk_setup(VFIOPCIDevice *vdev, int nr)
vfio_probe_rtl8168_bar2_quirk(vdev, nr);
}
void vfio_bar_quirk_teardown(VFIOPCIDevice *vdev, int nr)
void vfio_bar_quirk_exit(VFIOPCIDevice *vdev, int nr)
{
VFIOBAR *bar = &vdev->bars[nr];
VFIOQuirk *quirk;
@ -1025,7 +1025,7 @@ void vfio_bar_quirk_teardown(VFIOPCIDevice *vdev, int nr)
}
}
void vfio_bar_quirk_free(VFIOPCIDevice *vdev, int nr)
void vfio_bar_quirk_finalize(VFIOPCIDevice *vdev, int nr)
{
VFIOBAR *bar = &vdev->bars[nr];
int i;

114
hw/vfio/pci.c
View File

@ -1377,42 +1377,16 @@ static void vfio_mmap_set_enabled(VFIOPCIDevice *vdev, bool enabled)
}
}
static void vfio_unregister_bar(VFIOPCIDevice *vdev, int nr)
static void vfio_bar_setup(VFIOPCIDevice *vdev, int nr)
{
VFIOBAR *bar = &vdev->bars[nr];
if (!bar->region.size) {
return;
}
vfio_bar_quirk_teardown(vdev, nr);
vfio_region_exit(&bar->region);
}
static void vfio_unmap_bar(VFIOPCIDevice *vdev, int nr)
{
VFIOBAR *bar = &vdev->bars[nr];
if (!bar->region.size) {
return;
}
vfio_bar_quirk_free(vdev, nr);
vfio_region_finalize(&bar->region);
}
static void vfio_map_bar(VFIOPCIDevice *vdev, int nr)
{
VFIOBAR *bar = &vdev->bars[nr];
uint64_t size = bar->region.size;
uint32_t pci_bar;
uint8_t type;
int ret;
/* Skip both unimplemented BARs and the upper half of 64bit BARS. */
if (!size) {
if (!bar->region.size) {
return;
}
@ -1430,72 +1404,78 @@ static void vfio_map_bar(VFIOPCIDevice *vdev, int nr)
type = pci_bar & (bar->ioport ? ~PCI_BASE_ADDRESS_IO_MASK :
~PCI_BASE_ADDRESS_MEM_MASK);
pci_register_bar(&vdev->pdev, nr, type, bar->region.mem);
if (vfio_region_mmap(&bar->region)) {
error_report("Failed to mmap %s BAR %d. Performance may be slow",
vdev->vbasedev.name, nr);
}
vfio_bar_quirk_setup(vdev, nr);
pci_register_bar(&vdev->pdev, nr, type, bar->region.mem);
}
static void vfio_map_bars(VFIOPCIDevice *vdev)
static void vfio_bars_setup(VFIOPCIDevice *vdev)
{
int i;
for (i = 0; i < PCI_ROM_SLOT; i++) {
vfio_map_bar(vdev, i);
vfio_bar_setup(vdev, i);
}
if (vdev->has_vga) {
memory_region_init_io(&vdev->vga.region[QEMU_PCI_VGA_MEM].mem,
if (vdev->vga) {
memory_region_init_io(&vdev->vga->region[QEMU_PCI_VGA_MEM].mem,
OBJECT(vdev), &vfio_vga_ops,
&vdev->vga.region[QEMU_PCI_VGA_MEM],
&vdev->vga->region[QEMU_PCI_VGA_MEM],
"vfio-vga-mmio@0xa0000",
QEMU_PCI_VGA_MEM_SIZE);
memory_region_init_io(&vdev->vga.region[QEMU_PCI_VGA_IO_LO].mem,
memory_region_init_io(&vdev->vga->region[QEMU_PCI_VGA_IO_LO].mem,
OBJECT(vdev), &vfio_vga_ops,
&vdev->vga.region[QEMU_PCI_VGA_IO_LO],
&vdev->vga->region[QEMU_PCI_VGA_IO_LO],
"vfio-vga-io@0x3b0",
QEMU_PCI_VGA_IO_LO_SIZE);
memory_region_init_io(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem,
memory_region_init_io(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].mem,
OBJECT(vdev), &vfio_vga_ops,
&vdev->vga.region[QEMU_PCI_VGA_IO_HI],
&vdev->vga->region[QEMU_PCI_VGA_IO_HI],
"vfio-vga-io@0x3c0",
QEMU_PCI_VGA_IO_HI_SIZE);
pci_register_vga(&vdev->pdev, &vdev->vga.region[QEMU_PCI_VGA_MEM].mem,
&vdev->vga.region[QEMU_PCI_VGA_IO_LO].mem,
&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem);
pci_register_vga(&vdev->pdev, &vdev->vga->region[QEMU_PCI_VGA_MEM].mem,
&vdev->vga->region[QEMU_PCI_VGA_IO_LO].mem,
&vdev->vga->region[QEMU_PCI_VGA_IO_HI].mem);
vfio_vga_quirk_setup(vdev);
}
}
static void vfio_unregister_bars(VFIOPCIDevice *vdev)
static void vfio_bars_exit(VFIOPCIDevice *vdev)
{
int i;
for (i = 0; i < PCI_ROM_SLOT; i++) {
vfio_unregister_bar(vdev, i);
vfio_bar_quirk_exit(vdev, i);
vfio_region_exit(&vdev->bars[i].region);
}
if (vdev->has_vga) {
vfio_vga_quirk_teardown(vdev);
if (vdev->vga) {
pci_unregister_vga(&vdev->pdev);
vfio_vga_quirk_exit(vdev);
}
}
static void vfio_unmap_bars(VFIOPCIDevice *vdev)
static void vfio_bars_finalize(VFIOPCIDevice *vdev)
{
int i;
for (i = 0; i < PCI_ROM_SLOT; i++) {
vfio_unmap_bar(vdev, i);
vfio_bar_quirk_finalize(vdev, i);
vfio_region_finalize(&vdev->bars[i].region);
}
if (vdev->has_vga) {
vfio_vga_quirk_free(vdev);
if (vdev->vga) {
vfio_vga_quirk_finalize(vdev);
for (i = 0; i < ARRAY_SIZE(vdev->vga->region); i++) {
object_unparent(OBJECT(&vdev->vga->region[i].mem));
}
g_free(vdev->vga);
}
}
@ -2124,24 +2104,24 @@ static int vfio_populate_device(VFIOPCIDevice *vdev)
goto error;
}
vdev->vga.fd_offset = reg_info->offset;
vdev->vga.fd = vdev->vbasedev.fd;
vdev->vga = g_new0(VFIOVGA, 1);
vdev->vga->fd_offset = reg_info->offset;
vdev->vga->fd = vdev->vbasedev.fd;
g_free(reg_info);
vdev->vga.region[QEMU_PCI_VGA_MEM].offset = QEMU_PCI_VGA_MEM_BASE;
vdev->vga.region[QEMU_PCI_VGA_MEM].nr = QEMU_PCI_VGA_MEM;
QLIST_INIT(&vdev->vga.region[QEMU_PCI_VGA_MEM].quirks);
vdev->vga->region[QEMU_PCI_VGA_MEM].offset = QEMU_PCI_VGA_MEM_BASE;
vdev->vga->region[QEMU_PCI_VGA_MEM].nr = QEMU_PCI_VGA_MEM;
QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_MEM].quirks);
vdev->vga.region[QEMU_PCI_VGA_IO_LO].offset = QEMU_PCI_VGA_IO_LO_BASE;
vdev->vga.region[QEMU_PCI_VGA_IO_LO].nr = QEMU_PCI_VGA_IO_LO;
QLIST_INIT(&vdev->vga.region[QEMU_PCI_VGA_IO_LO].quirks);
vdev->vga->region[QEMU_PCI_VGA_IO_LO].offset = QEMU_PCI_VGA_IO_LO_BASE;
vdev->vga->region[QEMU_PCI_VGA_IO_LO].nr = QEMU_PCI_VGA_IO_LO;
QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_IO_LO].quirks);
vdev->vga.region[QEMU_PCI_VGA_IO_HI].offset = QEMU_PCI_VGA_IO_HI_BASE;
vdev->vga.region[QEMU_PCI_VGA_IO_HI].nr = QEMU_PCI_VGA_IO_HI;
QLIST_INIT(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].quirks);
vdev->has_vga = true;
vdev->vga->region[QEMU_PCI_VGA_IO_HI].offset = QEMU_PCI_VGA_IO_HI_BASE;
vdev->vga->region[QEMU_PCI_VGA_IO_HI].nr = QEMU_PCI_VGA_IO_HI;
QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].quirks);
}
irq_info.index = VFIO_PCI_ERR_IRQ_INDEX;
@ -2528,7 +2508,7 @@ static int vfio_initfn(PCIDevice *pdev)
return ret;
}
vfio_map_bars(vdev);
vfio_bars_setup(vdev);
ret = vfio_add_capabilities(vdev);
if (ret) {
@ -2565,7 +2545,7 @@ static int vfio_initfn(PCIDevice *pdev)
out_teardown:
pci_device_set_intx_routing_notifier(&vdev->pdev, NULL);
vfio_teardown_msi(vdev);
vfio_unregister_bars(vdev);
vfio_bars_exit(vdev);
return ret;
}
@ -2575,7 +2555,7 @@ static void vfio_instance_finalize(Object *obj)
VFIOPCIDevice *vdev = DO_UPCAST(VFIOPCIDevice, pdev, pci_dev);
VFIOGroup *group = vdev->vbasedev.group;
vfio_unmap_bars(vdev);
vfio_bars_finalize(vdev);
g_free(vdev->emulated_config_bits);
g_free(vdev->rom);
vfio_put_device(vdev);
@ -2594,7 +2574,7 @@ static void vfio_exitfn(PCIDevice *pdev)
timer_free(vdev->intx.mmap_timer);
}
vfio_teardown_msi(vdev);
vfio_unregister_bars(vdev);
vfio_bars_exit(vdev);
}
static void vfio_pci_reset(DeviceState *dev)

10
hw/vfio/pci.h
View File

@ -114,7 +114,7 @@ typedef struct VFIOPCIDevice {
int nr_vectors; /* Number of MSI/MSIX vectors currently in use */
int interrupt; /* Current interrupt type */
VFIOBAR bars[PCI_NUM_REGIONS - 1]; /* No ROM */
VFIOVGA vga; /* 0xa0000, 0x3b0, 0x3c0 */
VFIOVGA *vga; /* 0xa0000, 0x3b0, 0x3c0 */
PCIHostDeviceAddress host;
EventNotifier err_notifier;
EventNotifier req_notifier;
@ -150,11 +150,11 @@ void vfio_vga_write(void *opaque, hwaddr addr, uint64_t data, unsigned size);
bool vfio_blacklist_opt_rom(VFIOPCIDevice *vdev);
void vfio_vga_quirk_setup(VFIOPCIDevice *vdev);
void vfio_vga_quirk_teardown(VFIOPCIDevice *vdev);
void vfio_vga_quirk_free(VFIOPCIDevice *vdev);
void vfio_vga_quirk_exit(VFIOPCIDevice *vdev);
void vfio_vga_quirk_finalize(VFIOPCIDevice *vdev);
void vfio_bar_quirk_setup(VFIOPCIDevice *vdev, int nr);
void vfio_bar_quirk_teardown(VFIOPCIDevice *vdev, int nr);
void vfio_bar_quirk_free(VFIOPCIDevice *vdev, int nr);
void vfio_bar_quirk_exit(VFIOPCIDevice *vdev, int nr);
void vfio_bar_quirk_finalize(VFIOPCIDevice *vdev, int nr);
void vfio_setup_resetfn_quirk(VFIOPCIDevice *vdev);
#endif /* HW_VFIO_VFIO_PCI_H */