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VFIO updates 2018-02-06 

- SPAPR in-kernel TCE accleration (Alexey Kardashevskiy)
 
  - MSI-X relocation (Alex Williamson)
 
  - Add missing platform mutex init (Eric Auger)
 
  - Redundant variable cleanup (Alexey Kardashevskiy)
 
  - Option to disable GeForce quirks (Alex Williamson)
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Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20180206.0' into staging

VFIO updates 2018-02-06

 - SPAPR in-kernel TCE accleration (Alexey Kardashevskiy)

 - MSI-X relocation (Alex Williamson)

 - Add missing platform mutex init (Eric Auger)

 - Redundant variable cleanup (Alexey Kardashevskiy)

 - Option to disable GeForce quirks (Alex Williamson)

# gpg: Signature made Tue 06 Feb 2018 18:21:22 GMT
# gpg:                using RSA key 239B9B6E3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg:                 aka "Alex Williamson <alex@shazbot.org>"
# gpg:                 aka "Alex Williamson <alwillia@redhat.com>"
# gpg:                 aka "Alex Williamson <alex.l.williamson@gmail.com>"
# Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B  8A90 239B 9B6E 3BB0 8B22

* remotes/awilliam/tags/vfio-update-20180206.0:
  vfio/pci: Add option to disable GeForce quirks
  vfio/common: Remove redundant copy of local variable
  hw/vfio/platform: Init the interrupt mutex
  vfio/pci: Allow relocating MSI-X MMIO
  qapi: Create DEFINE_PROP_OFF_AUTO_PCIBAR
  vfio/pci: Emulate BARs
  vfio/pci: Add base BAR MemoryRegion
  vfio/pci: Fixup VFIOMSIXInfo comment
  spapr/iommu: Enable in-kernel TCE acceleration via VFIO KVM device
  vfio/spapr: Use iommu memory region's get_attr()
  memory/iommu: Add get_attr()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-02-07 14:38:53 +00:00
parent 0833df03f4 db32d0f438
commit ea62da0913
14 changed files with 323 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
hw/core/qdev-properties.c
View File

@ -1317,3 +1317,14 @@ const PropertyInfo qdev_prop_link = {
.name = "link",
.create = create_link_property,
};
/* --- OffAutoPCIBAR off/auto/bar0/bar1/bar2/bar3/bar4/bar5 --- */
const PropertyInfo qdev_prop_off_auto_pcibar = {
.name = "OffAutoPCIBAR",
.description = "off/auto/bar0/bar1/bar2/bar3/bar4/bar5",
.enum_table = &OffAutoPCIBAR_lookup,
.get = get_enum,
.set = set_enum,
.set_default_value = set_default_value_enum,
};

18
hw/ppc/spapr_iommu.c
View File

@ -160,6 +160,19 @@ static uint64_t spapr_tce_get_min_page_size(IOMMUMemoryRegion *iommu)
return 1ULL << tcet->page_shift;
}
static int spapr_tce_get_attr(IOMMUMemoryRegion *iommu,
enum IOMMUMemoryRegionAttr attr, void *data)
{
sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu);
if (attr == IOMMU_ATTR_SPAPR_TCE_FD && kvmppc_has_cap_spapr_vfio()) {
*(int *) data = tcet->fd;
return 0;
}
return -EINVAL;
}
static void spapr_tce_notify_flag_changed(IOMMUMemoryRegion *iommu,
IOMMUNotifierFlag old,
IOMMUNotifierFlag new)
@ -284,6 +297,10 @@ void spapr_tce_set_need_vfio(sPAPRTCETable *tcet, bool need_vfio)
tcet->need_vfio = need_vfio;
if (!need_vfio || (tcet->fd != -1 && kvmppc_has_cap_spapr_vfio())) {
return;
}
oldtable = tcet->table;
tcet->table = spapr_tce_alloc_table(tcet->liobn,
@ -643,6 +660,7 @@ static void spapr_iommu_memory_region_class_init(ObjectClass *klass, void *data)
imrc->translate = spapr_tce_translate_iommu;
imrc->get_min_page_size = spapr_tce_get_min_page_size;
imrc->notify_flag_changed = spapr_tce_notify_flag_changed;
imrc->get_attr = spapr_tce_get_attr;
}
static const TypeInfo spapr_iommu_memory_region_info = {

28
hw/vfio/common.c
View File

@ -435,7 +435,6 @@ static void vfio_listener_region_add(MemoryListener *listener,
end = int128_get64(int128_sub(llend, int128_one()));
if (container->iommu_type == VFIO_SPAPR_TCE_v2_IOMMU) {
VFIOHostDMAWindow *hostwin;
hwaddr pgsize = 0;
/* For now intersections are not allowed, we may relax this later */
@ -457,6 +456,33 @@ static void vfio_listener_region_add(MemoryListener *listener,
vfio_host_win_add(container, section->offset_within_address_space,
section->offset_within_address_space +
int128_get64(section->size) - 1, pgsize);
#ifdef CONFIG_KVM
if (kvm_enabled()) {
VFIOGroup *group;
IOMMUMemoryRegion *iommu_mr = IOMMU_MEMORY_REGION(section->mr);
struct kvm_vfio_spapr_tce param;
struct kvm_device_attr attr = {
.group = KVM_DEV_VFIO_GROUP,
.attr = KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE,
.addr = (uint64_t)(unsigned long)&param,
};
if (!memory_region_iommu_get_attr(iommu_mr, IOMMU_ATTR_SPAPR_TCE_FD,
&param.tablefd)) {
QLIST_FOREACH(group, &container->group_list, container_next) {
param.groupfd = group->fd;
if (ioctl(vfio_kvm_device_fd, KVM_SET_DEVICE_ATTR, &attr)) {
error_report("vfio: failed to setup fd %d "
"for a group with fd %d: %s",
param.tablefd, param.groupfd,
strerror(errno));
return;
}
trace_vfio_spapr_group_attach(param.groupfd, param.tablefd);
}
}
}
#endif
}
hostwin_found = false;

9
hw/vfio/pci-quirks.c
View File

@ -542,7 +542,8 @@ static void vfio_vga_probe_nvidia_3d0_quirk(VFIOPCIDevice *vdev)
VFIOQuirk *quirk;
VFIONvidia3d0Quirk *data;
if (!vfio_pci_is(vdev, PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID) ||
if (vdev->no_geforce_quirks ||
!vfio_pci_is(vdev, PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID) ||
!vdev->bars[1].region.size) {
return;
}
@ -660,7 +661,8 @@ static void vfio_probe_nvidia_bar5_quirk(VFIOPCIDevice *vdev, int nr)
VFIONvidiaBAR5Quirk *bar5;
VFIOConfigWindowQuirk *window;
if (!vfio_pci_is(vdev, PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID) ||
if (vdev->no_geforce_quirks ||
!vfio_pci_is(vdev, PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID) ||
!vdev->vga || nr != 5 || !vdev->bars[5].ioport) {
return;
}
@ -754,7 +756,8 @@ static void vfio_probe_nvidia_bar0_quirk(VFIOPCIDevice *vdev, int nr)
VFIOQuirk *quirk;
VFIOConfigMirrorQuirk *mirror;
if (!vfio_pci_is(vdev, PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID) ||
if (vdev->no_geforce_quirks ||
!vfio_pci_is(vdev, PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID) ||
!vfio_is_vga(vdev) || nr != 0) {
return;
}

189
hw/vfio/pci.c
View File

@ -1087,7 +1087,7 @@ static void vfio_sub_page_bar_update_mapping(PCIDevice *pdev, int bar)
{
VFIOPCIDevice *vdev = DO_UPCAST(VFIOPCIDevice, pdev, pdev);
VFIORegion *region = &vdev->bars[bar].region;
MemoryRegion *mmap_mr, *mr;
MemoryRegion *mmap_mr, *region_mr, *base_mr;
PCIIORegion *r;
pcibus_t bar_addr;
uint64_t size = region->size;
@ -1100,7 +1100,8 @@ static void vfio_sub_page_bar_update_mapping(PCIDevice *pdev, int bar)
r = &pdev->io_regions[bar];
bar_addr = r->addr;
mr = region->mem;
base_mr = vdev->bars[bar].mr;
region_mr = region->mem;
mmap_mr = &region->mmaps[0].mem;
/* If BAR is mapped and page aligned, update to fill PAGE_SIZE */
@ -1111,12 +1112,15 @@ static void vfio_sub_page_bar_update_mapping(PCIDevice *pdev, int bar)
memory_region_transaction_begin();
memory_region_set_size(mr, size);
if (vdev->bars[bar].size < size) {
memory_region_set_size(base_mr, size);
}
memory_region_set_size(region_mr, size);
memory_region_set_size(mmap_mr, size);
if (size != region->size && memory_region_is_mapped(mr)) {
memory_region_del_subregion(r->address_space, mr);
if (size != vdev->bars[bar].size && memory_region_is_mapped(base_mr)) {
memory_region_del_subregion(r->address_space, base_mr);
memory_region_add_subregion_overlap(r->address_space,
bar_addr, mr, 0);
bar_addr, base_mr, 0);
}
memory_region_transaction_commit();
@ -1218,8 +1222,8 @@ void vfio_pci_write_config(PCIDevice *pdev,
for (bar = 0; bar < PCI_ROM_SLOT; bar++) {
if (old_addr[bar] != pdev->io_regions[bar].addr &&
pdev->io_regions[bar].size > 0 &&
pdev->io_regions[bar].size < qemu_real_host_page_size) {
vdev->bars[bar].region.size > 0 &&
vdev->bars[bar].region.size < qemu_real_host_page_size) {
vfio_sub_page_bar_update_mapping(pdev, bar);
}
}
@ -1352,6 +1356,98 @@ static void vfio_pci_fixup_msix_region(VFIOPCIDevice *vdev)
}
}
static void vfio_pci_relocate_msix(VFIOPCIDevice *vdev, Error **errp)
{
int target_bar = -1;
size_t msix_sz;
if (!vdev->msix || vdev->msix_relo == OFF_AUTOPCIBAR_OFF) {
return;
}
/* The actual minimum size of MSI-X structures */
msix_sz = (vdev->msix->entries * PCI_MSIX_ENTRY_SIZE) +
(QEMU_ALIGN_UP(vdev->msix->entries, 64) / 8);
/* Round up to host pages, we don't want to share a page */
msix_sz = REAL_HOST_PAGE_ALIGN(msix_sz);
/* PCI BARs must be a power of 2 */
msix_sz = pow2ceil(msix_sz);
if (vdev->msix_relo == OFF_AUTOPCIBAR_AUTO) {
/*
* TODO: Lookup table for known devices.
*
* Logically we might use an algorithm here to select the BAR adding
* the least additional MMIO space, but we cannot programatically
* predict the driver dependency on BAR ordering or sizing, therefore
* 'auto' becomes a lookup for combinations reported to work.
*/
if (target_bar < 0) {
error_setg(errp, "No automatic MSI-X relocation available for "
"device %04x:%04x", vdev->vendor_id, vdev->device_id);
return;
}
} else {
target_bar = (int)(vdev->msix_relo - OFF_AUTOPCIBAR_BAR0);
}
/* I/O port BARs cannot host MSI-X structures */
if (vdev->bars[target_bar].ioport) {
error_setg(errp, "Invalid MSI-X relocation BAR %d, "
"I/O port BAR", target_bar);
return;
}
/* Cannot use a BAR in the "shadow" of a 64-bit BAR */
if (!vdev->bars[target_bar].size &&
target_bar > 0 && vdev->bars[target_bar - 1].mem64) {
error_setg(errp, "Invalid MSI-X relocation BAR %d, "
"consumed by 64-bit BAR %d", target_bar, target_bar - 1);
return;
}
/* 2GB max size for 32-bit BARs, cannot double if already > 1G */
if (vdev->bars[target_bar].size > (1 * 1024 * 1024 * 1024) &&
!vdev->bars[target_bar].mem64) {
error_setg(errp, "Invalid MSI-X relocation BAR %d, "
"no space to extend 32-bit BAR", target_bar);
return;
}
/*
* If adding a new BAR, test if we can make it 64bit. We make it
* prefetchable since QEMU MSI-X emulation has no read side effects
* and doing so makes mapping more flexible.
*/
if (!vdev->bars[target_bar].size) {
if (target_bar < (PCI_ROM_SLOT - 1) &&
!vdev->bars[target_bar + 1].size) {
vdev->bars[target_bar].mem64 = true;
vdev->bars[target_bar].type = PCI_BASE_ADDRESS_MEM_TYPE_64;
}
vdev->bars[target_bar].type |= PCI_BASE_ADDRESS_MEM_PREFETCH;
vdev->bars[target_bar].size = msix_sz;
vdev->msix->table_offset = 0;
} else {
vdev->bars[target_bar].size = MAX(vdev->bars[target_bar].size * 2,
msix_sz * 2);
/*
* Due to above size calc, MSI-X always starts halfway into the BAR,
* which will always be a separate host page.
*/
vdev->msix->table_offset = vdev->bars[target_bar].size / 2;
}
vdev->msix->table_bar = target_bar;
vdev->msix->pba_bar = target_bar;
/* Requires 8-byte alignment, but PCI_MSIX_ENTRY_SIZE guarantees that */
vdev->msix->pba_offset = vdev->msix->table_offset +
(vdev->msix->entries * PCI_MSIX_ENTRY_SIZE);
trace_vfio_msix_relo(vdev->vbasedev.name,
vdev->msix->table_bar, vdev->msix->table_offset);
}
/*
* We don't have any control over how pci_add_capability() inserts
* capabilities into the chain. In order to setup MSI-X we need a
@ -1430,6 +1526,8 @@ static void vfio_msix_early_setup(VFIOPCIDevice *vdev, Error **errp)
vdev->msix = msix;
vfio_pci_fixup_msix_region(vdev);
vfio_pci_relocate_msix(vdev, errp);
}
static int vfio_msix_setup(VFIOPCIDevice *vdev, int pos, Error **errp)
@ -1440,9 +1538,9 @@ static int vfio_msix_setup(VFIOPCIDevice *vdev, int pos, Error **errp)
vdev->msix->pending = g_malloc0(BITS_TO_LONGS(vdev->msix->entries) *
sizeof(unsigned long));
ret = msix_init(&vdev->pdev, vdev->msix->entries,
vdev->bars[vdev->msix->table_bar].region.mem,
vdev->bars[vdev->msix->table_bar].mr,
vdev->msix->table_bar, vdev->msix->table_offset,
vdev->bars[vdev->msix->pba_bar].region.mem,
vdev->bars[vdev->msix->pba_bar].mr,
vdev->msix->pba_bar, vdev->msix->pba_offset, pos,
&err);
if (ret < 0) {
@ -1482,8 +1580,8 @@ static void vfio_teardown_msi(VFIOPCIDevice *vdev)
if (vdev->msix) {
msix_uninit(&vdev->pdev,
vdev->bars[vdev->msix->table_bar].region.mem,
vdev->bars[vdev->msix->pba_bar].region.mem);
vdev->bars[vdev->msix->table_bar].mr,
vdev->bars[vdev->msix->pba_bar].mr);
g_free(vdev->msix->pending);
}
}
@ -1500,12 +1598,11 @@ static void vfio_mmap_set_enabled(VFIOPCIDevice *vdev, bool enabled)
}
}
static void vfio_bar_setup(VFIOPCIDevice *vdev, int nr)
static void vfio_bar_prepare(VFIOPCIDevice *vdev, int nr)
{
VFIOBAR *bar = &vdev->bars[nr];
uint32_t pci_bar;
uint8_t type;
int ret;
/* Skip both unimplemented BARs and the upper half of 64bit BARS. */
@ -1524,23 +1621,52 @@ static void vfio_bar_setup(VFIOPCIDevice *vdev, int nr)
pci_bar = le32_to_cpu(pci_bar);
bar->ioport = (pci_bar & PCI_BASE_ADDRESS_SPACE_IO);
bar->mem64 = bar->ioport ? 0 : (pci_bar & PCI_BASE_ADDRESS_MEM_TYPE_64);
type = pci_bar & (bar->ioport ? ~PCI_BASE_ADDRESS_IO_MASK :
bar->type = pci_bar & (bar->ioport ? ~PCI_BASE_ADDRESS_IO_MASK :
~PCI_BASE_ADDRESS_MEM_MASK);
bar->size = bar->region.size;
}
static void vfio_bars_prepare(VFIOPCIDevice *vdev)
{
int i;
for (i = 0; i < PCI_ROM_SLOT; i++) {
vfio_bar_prepare(vdev, i);
}
}
static void vfio_bar_register(VFIOPCIDevice *vdev, int nr)
{
VFIOBAR *bar = &vdev->bars[nr];
char *name;
if (!bar->size) {
return;
}
bar->mr = g_new0(MemoryRegion, 1);
name = g_strdup_printf("%s base BAR %d", vdev->vbasedev.name, nr);
memory_region_init_io(bar->mr, OBJECT(vdev), NULL, NULL, name, bar->size);
g_free(name);
if (bar->region.size) {
memory_region_add_subregion(bar->mr, 0, 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);
}
pci_register_bar(&vdev->pdev, nr, type, bar->region.mem);
}
static void vfio_bars_setup(VFIOPCIDevice *vdev)
pci_register_bar(&vdev->pdev, nr, bar->type, bar->mr);
}
static void vfio_bars_register(VFIOPCIDevice *vdev)
{
int i;
for (i = 0; i < PCI_ROM_SLOT; i++) {
vfio_bar_setup(vdev, i);
vfio_bar_register(vdev, i);
}
}
@ -1549,8 +1675,13 @@ static void vfio_bars_exit(VFIOPCIDevice *vdev)
int i;
for (i = 0; i < PCI_ROM_SLOT; i++) {
VFIOBAR *bar = &vdev->bars[i];
vfio_bar_quirk_exit(vdev, i);
vfio_region_exit(&vdev->bars[i].region);
vfio_region_exit(&bar->region);
if (bar->region.size) {
memory_region_del_subregion(bar->mr, bar->region.mem);
}
}
if (vdev->vga) {
@ -1564,8 +1695,14 @@ static void vfio_bars_finalize(VFIOPCIDevice *vdev)
int i;
for (i = 0; i < PCI_ROM_SLOT; i++) {
VFIOBAR *bar = &vdev->bars[i];
vfio_bar_quirk_finalize(vdev, i);
vfio_region_finalize(&vdev->bars[i].region);
vfio_region_finalize(&bar->region);
if (bar->size) {
object_unparent(OBJECT(bar->mr));
g_free(bar->mr);
}
}
if (vdev->vga) {
@ -2734,6 +2871,8 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
/* QEMU can choose to expose the ROM or not */
memset(vdev->emulated_config_bits + PCI_ROM_ADDRESS, 0xff, 4);
/* QEMU can also add or extend BARs */
memset(vdev->emulated_config_bits + PCI_BASE_ADDRESS_0, 0xff, 6 * 4);
/*
* The PCI spec reserves vendor ID 0xffff as an invalid value. The
@ -2804,13 +2943,15 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
vfio_pci_size_rom(vdev);
vfio_bars_prepare(vdev);
vfio_msix_early_setup(vdev, &err);
if (err) {
error_propagate(errp, err);
goto error;
}
vfio_bars_setup(vdev);
vfio_bars_register(vdev);
ret = vfio_add_capabilities(vdev, errp);
if (ret) {
@ -2989,6 +3130,8 @@ static Property vfio_pci_dev_properties[] = {
DEFINE_PROP_BOOL("x-no-kvm-intx", VFIOPCIDevice, no_kvm_intx, false),
DEFINE_PROP_BOOL("x-no-kvm-msi", VFIOPCIDevice, no_kvm_msi, false),
DEFINE_PROP_BOOL("x-no-kvm-msix", VFIOPCIDevice, no_kvm_msix, false),
DEFINE_PROP_BOOL("x-no-geforce-quirks", VFIOPCIDevice,
no_geforce_quirks, false),
DEFINE_PROP_UINT32("x-pci-vendor-id", VFIOPCIDevice, vendor_id, PCI_ANY_ID),
DEFINE_PROP_UINT32("x-pci-device-id", VFIOPCIDevice, device_id, PCI_ANY_ID),
DEFINE_PROP_UINT32("x-pci-sub-vendor-id", VFIOPCIDevice,
@ -2999,6 +3142,8 @@ static Property vfio_pci_dev_properties[] = {
DEFINE_PROP_UNSIGNED_NODEFAULT("x-nv-gpudirect-clique", VFIOPCIDevice,
nv_gpudirect_clique,
qdev_prop_nv_gpudirect_clique, uint8_t),
DEFINE_PROP_OFF_AUTO_PCIBAR("x-msix-relocation", VFIOPCIDevice, msix_relo,
OFF_AUTOPCIBAR_OFF),
/*
* TODO - support passed fds... is this necessary?
* DEFINE_PROP_STRING("vfiofd", VFIOPCIDevice, vfiofd_name),

7
hw/vfio/pci.h
View File

@ -33,6 +33,9 @@ typedef struct VFIOQuirk {
typedef struct VFIOBAR {
VFIORegion region;
MemoryRegion *mr;
size_t size;
uint8_t type;
bool ioport;
bool mem64;
QLIST_HEAD(, VFIOQuirk) quirks;
@ -86,7 +89,7 @@ enum {
VFIO_INT_MSIX = 3,
};
/* Cache of MSI-X setup plus extra mmap and memory region for split BAR map */
/* Cache of MSI-X setup */
typedef struct VFIOMSIXInfo {
uint8_t table_bar;
uint8_t pba_bar;
@ -132,6 +135,7 @@ typedef struct VFIOPCIDevice {
(1 << VFIO_FEATURE_ENABLE_IGD_OPREGION_BIT)
int32_t bootindex;
uint32_t igd_gms;
OffAutoPCIBAR msix_relo;
uint8_t pm_cap;
uint8_t nv_gpudirect_clique;
bool pci_aer;
@ -142,6 +146,7 @@ typedef struct VFIOPCIDevice {
bool no_kvm_intx;
bool no_kvm_msi;
bool no_kvm_msix;
bool no_geforce_quirks;
} VFIOPCIDevice;
uint32_t vfio_pci_read_config(PCIDevice *pdev, uint32_t addr, int len);

2
hw/vfio/platform.c
View File

@ -643,6 +643,8 @@ static void vfio_platform_realize(DeviceState *dev, Error **errp)
vbasedev->dev = dev;
vbasedev->ops = &vfio_platform_ops;
qemu_mutex_init(&vdev->intp_mutex);
trace_vfio_platform_realize(vbasedev->sysfsdev ?
vbasedev->sysfsdev : vbasedev->name,
vdev->compat);

3
hw/vfio/trace-events
View File

@ -16,6 +16,8 @@ vfio_msix_pba_disable(const char *name) " (%s)"
vfio_msix_pba_enable(const char *name) " (%s)"
vfio_msix_disable(const char *name) " (%s)"
vfio_msix_fixup(const char *name, int bar, uint64_t start, uint64_t end) " (%s) MSI-X region %d mmap fixup [0x%"PRIx64" - 0x%"PRIx64"]"
vfio_msix_relo_cost(const char *name, int bar, uint64_t cost) " (%s) BAR %d cost 0x%"PRIx64""
vfio_msix_relo(const char *name, int bar, uint64_t offset) " (%s) BAR %d offset 0x%"PRIx64""
vfio_msi_enable(const char *name, int nr_vectors) " (%s) Enabled %d MSI vectors"
vfio_msi_disable(const char *name) " (%s)"
vfio_pci_load_rom(const char *name, unsigned long size, unsigned long offset, unsigned long flags) "Device %s ROM:\n size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
@ -123,3 +125,4 @@ vfio_prereg_register(uint64_t va, uint64_t size, int ret) "va=0x%"PRIx64" size=0
vfio_prereg_unregister(uint64_t va, uint64_t size, int ret) "va=0x%"PRIx64" size=0x%"PRIx64" ret=%d"
vfio_spapr_create_window(int ps, uint64_t ws, uint64_t off) "pageshift=0x%x winsize=0x%"PRIx64" offset=0x%"PRIx64
vfio_spapr_remove_window(uint64_t off) "offset=0x%"PRIx64
vfio_spapr_group_attach(int groupfd, int tablefd) "Attached groupfd %d to liobn fd %d"

22
include/exec/memory.h
View File

@ -190,6 +190,10 @@ struct MemoryRegionOps {
const MemoryRegionMmio old_mmio;
};
enum IOMMUMemoryRegionAttr {
IOMMU_ATTR_SPAPR_TCE_FD
};
typedef struct IOMMUMemoryRegionClass {
/* private */
struct DeviceClass parent_class;
@ -210,6 +214,10 @@ typedef struct IOMMUMemoryRegionClass {
IOMMUNotifierFlag new_flags);
/* Set this up to provide customized IOMMU replay function */
void (*replay)(IOMMUMemoryRegion *iommu, IOMMUNotifier *notifier);
/* Get IOMMU misc attributes */
int (*get_attr)(IOMMUMemoryRegion *iommu, enum IOMMUMemoryRegionAttr,
void *data);
} IOMMUMemoryRegionClass;
typedef struct CoalescedMemoryRange CoalescedMemoryRange;
@ -926,6 +934,20 @@ void memory_region_iommu_replay_all(IOMMUMemoryRegion *iommu_mr);
void memory_region_unregister_iommu_notifier(MemoryRegion *mr,
IOMMUNotifier *n);
/**
* memory_region_iommu_get_attr: return an IOMMU attr if get_attr() is
* defined on the IOMMU.
*
* Returns 0 if succeded, error code otherwise.
*
* @iommu_mr: the memory region
* @attr: the requested attribute
* @data: a pointer to the requested attribute data
*/
int memory_region_iommu_get_attr(IOMMUMemoryRegion *iommu_mr,
enum IOMMUMemoryRegionAttr attr,
void *data);
/**
* memory_region_name: get a memory region's name
*

4
include/hw/qdev-properties.h
View File

@ -34,6 +34,7 @@ extern const PropertyInfo qdev_prop_pci_host_devaddr;
extern const PropertyInfo qdev_prop_uuid;
extern const PropertyInfo qdev_prop_arraylen;
extern const PropertyInfo qdev_prop_link;
extern const PropertyInfo qdev_prop_off_auto_pcibar;
#define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
.name = (_name), \
@ -214,6 +215,9 @@ extern const PropertyInfo qdev_prop_link;
DEFINE_PROP(_n, _s, _f, qdev_prop_pci_host_devaddr, PCIHostDeviceAddress)
#define DEFINE_PROP_MEMORY_REGION(_n, _s, _f) \
DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, MemoryRegion *)
#define DEFINE_PROP_OFF_AUTO_PCIBAR(_n, _s, _f, _d) \
DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_off_auto_pcibar, \
OffAutoPCIBAR)
#define DEFINE_PROP_UUID(_name, _state, _field) { \
.name = (_name), \

13
memory.c
View File

@ -1922,6 +1922,19 @@ void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
}
}
int memory_region_iommu_get_attr(IOMMUMemoryRegion *iommu_mr,
enum IOMMUMemoryRegionAttr attr,
void *data)
{
IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
if (!imrc->get_attr) {
return -EINVAL;
}
return imrc->get_attr(iommu_mr, attr, data);
}
void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client)
{
uint8_t mask = 1 << client;

26
qapi/common.json
View File

@ -100,3 +100,29 @@
{ 'alternate': 'StrOrNull',
'data': { 's': 'str',
'n': 'null' } }
##
# @OffAutoPCIBAR:
#
# An enumeration of options for specifying a PCI BAR
#
# @off: The specified feature is disabled
#
# @auto: The PCI BAR for the feature is automatically selected
#
# @bar0: PCI BAR0 is used for the feature
#
# @bar1: PCI BAR1 is used for the feature
#
# @bar2: PCI BAR2 is used for the feature
#
# @bar3: PCI BAR3 is used for the feature
#
# @bar4: PCI BAR4 is used for the feature
#
# @bar5: PCI BAR5 is used for the feature
#
# Since: 2.12
##
{ 'enum': 'OffAutoPCIBAR',
'data': [ 'off', 'auto', 'bar0', 'bar1', 'bar2', 'bar3', 'bar4', 'bar5' ] }

7
target/ppc/kvm.c
View File

@ -137,7 +137,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
cap_spapr_tce = kvm_check_extension(s, KVM_CAP_SPAPR_TCE);
cap_spapr_tce_64 = kvm_check_extension(s, KVM_CAP_SPAPR_TCE_64);
cap_spapr_multitce = kvm_check_extension(s, KVM_CAP_SPAPR_MULTITCE);
cap_spapr_vfio = false;
cap_spapr_vfio = kvm_vm_check_extension(s, KVM_CAP_SPAPR_TCE_VFIO);
cap_one_reg = kvm_check_extension(s, KVM_CAP_ONE_REG);
cap_hior = kvm_check_extension(s, KVM_CAP_PPC_HIOR);
cap_epr = kvm_check_extension(s, KVM_CAP_PPC_EPR);
@ -2514,6 +2514,11 @@ int kvmppc_get_cap_safe_indirect_branch(void)
return cap_ppc_safe_indirect_branch;
}
bool kvmppc_has_cap_spapr_vfio(void)
{
return cap_spapr_vfio;
}
PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void)
{
uint32_t host_pvr = mfpvr();

6
target/ppc/kvm_ppc.h
View File

@ -46,6 +46,7 @@ void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t page_shift,
int kvmppc_remove_spapr_tce(void *table, int pfd, uint32_t window_size);
int kvmppc_reset_htab(int shift_hint);
uint64_t kvmppc_rma_size(uint64_t current_size, unsigned int hash_shift);
bool kvmppc_has_cap_spapr_vfio(void);
#endif /* !CONFIG_USER_ONLY */
bool kvmppc_has_cap_epr(void);
int kvmppc_define_rtas_kernel_token(uint32_t token, const char *function);
@ -232,6 +233,11 @@ static inline bool kvmppc_is_mem_backend_page_size_ok(const char *obj_path)
return true;
}
static inline bool kvmppc_has_cap_spapr_vfio(void)
{
return false;
}
#endif /* !CONFIG_USER_ONLY */
static inline bool kvmppc_has_cap_epr(void)