On Fri, 15 Sep 2023 09:59:36 +0200
Cédric Le Goater <c...@kaod.org> wrote:
> NVLink2 support was removed from the PPC PowerNV platform and VFIO in
> Linux 5.13 with commits :
>
> 562d1e207d32 ("powerpc/powernv: remove the nvlink support")
> b392a1989170 ("vfio/pci: remove vfio_pci_nvlink2")
>
> This was 2.5 years ago. Do the same in QEMU with a revert of commit
> ec132efaa81f ("spapr: Support NVIDIA V100 GPU with NVLink2"). Some
> adjustements are required on the NUMA part.
>
> Cc: Alexey Kardashevskiy <a...@ozlabs.ru>
> Signed-off-by: Cédric Le Goater <c...@kaod.org>
> ---
Acked-by: Alex Williamson <alex.william...@redhat.com>
> hw/vfio/pci.h | 2 -
> include/hw/pci-host/spapr.h | 45 ----
> include/hw/ppc/spapr.h | 9 +-
> hw/ppc/spapr.c | 22 +-
> hw/ppc/spapr_numa.c | 49 +---
> hw/ppc/spapr_pci.c | 19 --
> hw/ppc/spapr_pci_nvlink2.c | 442 ------------------------------------
> hw/vfio/pci-quirks.c | 115 ----------
> hw/vfio/pci.c | 14 --
> hw/ppc/meson.build | 1 -
> hw/vfio/trace-events | 4 -
> 11 files changed, 14 insertions(+), 708 deletions(-)
> delete mode 100644 hw/ppc/spapr_pci_nvlink2.c
>
> diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
> index a2771b9ff3cc..2d836093a83d 100644
> --- a/hw/vfio/pci.h
> +++ b/hw/vfio/pci.h
> @@ -221,8 +221,6 @@ int vfio_populate_vga(VFIOPCIDevice *vdev, Error **errp);
> int vfio_pci_igd_opregion_init(VFIOPCIDevice *vdev,
> struct vfio_region_info *info,
> Error **errp);
> -int vfio_pci_nvidia_v100_ram_init(VFIOPCIDevice *vdev, Error **errp);
> -int vfio_pci_nvlink2_init(VFIOPCIDevice *vdev, Error **errp);
>
> void vfio_display_reset(VFIOPCIDevice *vdev);
> int vfio_display_probe(VFIOPCIDevice *vdev, Error **errp);
> diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h
> index 5b03a7b0eb3f..3778aac27b60 100644
> --- a/include/hw/pci-host/spapr.h
> +++ b/include/hw/pci-host/spapr.h
> @@ -47,8 +47,6 @@ typedef struct SpaprPciLsi {
> uint32_t irq;
> } SpaprPciLsi;
>
> -typedef struct SpaprPhbPciNvGpuConfig SpaprPhbPciNvGpuConfig;
> -
> struct SpaprPhbState {
> PCIHostState parent_obj;
>
> @@ -90,9 +88,6 @@ struct SpaprPhbState {
> uint32_t mig_liobn;
> hwaddr mig_mem_win_addr, mig_mem_win_size;
> hwaddr mig_io_win_addr, mig_io_win_size;
> - hwaddr nv2_gpa_win_addr;
> - hwaddr nv2_atsd_win_addr;
> - SpaprPhbPciNvGpuConfig *nvgpus;
> bool pre_5_1_assoc;
> };
>
> @@ -112,20 +107,6 @@ struct SpaprPhbState {
>
> #define SPAPR_PCI_MSI_WINDOW 0x40000000000ULL
>
> -#define SPAPR_PCI_NV2RAM64_WIN_BASE SPAPR_PCI_LIMIT
> -#define SPAPR_PCI_NV2RAM64_WIN_SIZE (2 * TiB) /* For up to 6 GPUs 256GB
> each */
> -
> -/* Max number of NVLinks per GPU in any physical box */
> -#define NVGPU_MAX_LINKS 3
> -
> -/*
> - * GPU RAM starts at 64TiB so huge DMA window to cover it all ends at 128TiB
> - * which is enough. We do not need DMA for ATSD so we put them at 128TiB.
> - */
> -#define SPAPR_PCI_NV2ATSD_WIN_BASE (128 * TiB)
> -#define SPAPR_PCI_NV2ATSD_WIN_SIZE (NVGPU_MAX_NUM * NVGPU_MAX_LINKS * \
> - 64 * KiB)
> -
> int spapr_dt_phb(SpaprMachineState *spapr, SpaprPhbState *phb,
> uint32_t intc_phandle, void *fdt, int *node_offset);
>
> @@ -149,13 +130,6 @@ int spapr_phb_vfio_eeh_get_state(SpaprPhbState *sphb,
> int *state);
> int spapr_phb_vfio_eeh_reset(SpaprPhbState *sphb, int option);
> int spapr_phb_vfio_eeh_configure(SpaprPhbState *sphb);
> void spapr_phb_vfio_reset(DeviceState *qdev);
> -void spapr_phb_nvgpu_setup(SpaprPhbState *sphb, Error **errp);
> -void spapr_phb_nvgpu_free(SpaprPhbState *sphb);
> -void spapr_phb_nvgpu_populate_dt(SpaprPhbState *sphb, void *fdt, int bus_off,
> - Error **errp);
> -void spapr_phb_nvgpu_ram_populate_dt(SpaprPhbState *sphb, void *fdt);
> -void spapr_phb_nvgpu_populate_pcidev_dt(PCIDevice *dev, void *fdt, int
> offset,
> - SpaprPhbState *sphb);
> #else
> static inline bool spapr_phb_eeh_available(SpaprPhbState *sphb)
> {
> @@ -182,25 +156,6 @@ static inline int
> spapr_phb_vfio_eeh_configure(SpaprPhbState *sphb)
> static inline void spapr_phb_vfio_reset(DeviceState *qdev)
> {
> }
> -static inline void spapr_phb_nvgpu_setup(SpaprPhbState *sphb, Error **errp)
> -{
> -}
> -static inline void spapr_phb_nvgpu_free(SpaprPhbState *sphb)
> -{
> -}
> -static inline void spapr_phb_nvgpu_populate_dt(SpaprPhbState *sphb, void
> *fdt,
> - int bus_off, Error **errp)
> -{
> -}
> -static inline void spapr_phb_nvgpu_ram_populate_dt(SpaprPhbState *sphb,
> - void *fdt)
> -{
> -}
> -static inline void spapr_phb_nvgpu_populate_pcidev_dt(PCIDevice *dev, void
> *fdt,
> - int offset,
> - SpaprPhbState *sphb)
> -{
> -}
> #endif
>
> void spapr_phb_dma_reset(SpaprPhbState *sphb);
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index f4bd204d8633..fca60b403198 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -103,11 +103,8 @@ typedef enum {
>
> #define FDT_MAX_SIZE 0x200000
>
> -/* Max number of GPUs per system */
> -#define NVGPU_MAX_NUM 6
> -
> /* Max number of NUMA nodes */
> -#define NUMA_NODES_MAX_NUM (MAX_NODES + NVGPU_MAX_NUM)
> +#define NUMA_NODES_MAX_NUM (MAX_NODES)
>
> /*
> * NUMA FORM1 macros. FORM1_DIST_REF_POINTS was taken from
> @@ -160,8 +157,7 @@ struct SpaprMachineClass {
> bool (*phb_placement)(SpaprMachineState *spapr, uint32_t index,
> uint64_t *buid, hwaddr *pio,
> hwaddr *mmio32, hwaddr *mmio64,
> - unsigned n_dma, uint32_t *liobns, hwaddr *nv2gpa,
> - hwaddr *nv2atsd, Error **errp);
> + unsigned n_dma, uint32_t *liobns, Error **errp);
> SpaprResizeHpt resize_hpt_default;
> SpaprCapabilities default_caps;
> SpaprIrq *irq;
> @@ -276,7 +272,6 @@ struct SpaprMachineState {
> bool cmd_line_caps[SPAPR_CAP_NUM];
> SpaprCapabilities def, eff, mig;
>
> - unsigned gpu_numa_id;
> SpaprTpmProxy *tpm_proxy;
>
> uint32_t FORM1_assoc_array[NUMA_NODES_MAX_NUM][FORM1_NUMA_ASSOC_SIZE];
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index f7cc6a890f45..de3c616b4637 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -2875,8 +2875,6 @@ static void spapr_machine_init(MachineState *machine)
> /* init CPUs */
> spapr_init_cpus(spapr);
>
> - spapr->gpu_numa_id = spapr_numa_initial_nvgpu_numa_id(machine);
> -
> /* Init numa_assoc_array */
> spapr_numa_associativity_init(spapr, machine);
>
> @@ -4134,7 +4132,6 @@ static bool spapr_phb_pre_plug(HotplugHandler
> *hotplug_dev, DeviceState *dev,
> &sphb->buid, &sphb->io_win_addr,
> &sphb->mem_win_addr, &sphb->mem64_win_addr,
> windows_supported, sphb->dma_liobn,
> - &sphb->nv2_gpa_win_addr, &sphb->nv2_atsd_win_addr,
> errp);
> }
>
> @@ -4397,8 +4394,7 @@ static const CPUArchIdList
> *spapr_possible_cpu_arch_ids(MachineState *machine)
> static bool spapr_phb_placement(SpaprMachineState *spapr, uint32_t index,
> uint64_t *buid, hwaddr *pio,
> hwaddr *mmio32, hwaddr *mmio64,
> - unsigned n_dma, uint32_t *liobns,
> - hwaddr *nv2gpa, hwaddr *nv2atsd, Error
> **errp)
> + unsigned n_dma, uint32_t *liobns, Error
> **errp)
> {
> /*
> * New-style PHB window placement.
> @@ -4443,9 +4439,6 @@ static bool spapr_phb_placement(SpaprMachineState
> *spapr, uint32_t index,
> *pio = SPAPR_PCI_BASE + index * SPAPR_PCI_IO_WIN_SIZE;
> *mmio32 = SPAPR_PCI_BASE + (index + 1) * SPAPR_PCI_MEM32_WIN_SIZE;
> *mmio64 = SPAPR_PCI_BASE + (index + 1) * SPAPR_PCI_MEM64_WIN_SIZE;
> -
> - *nv2gpa = SPAPR_PCI_NV2RAM64_WIN_BASE + index *
> SPAPR_PCI_NV2RAM64_WIN_SIZE;
> - *nv2atsd = SPAPR_PCI_NV2ATSD_WIN_BASE + index *
> SPAPR_PCI_NV2ATSD_WIN_SIZE;
> return true;
> }
>
> @@ -4963,16 +4956,12 @@ DEFINE_SPAPR_MACHINE(4_1, "4.1", false);
> static bool phb_placement_4_0(SpaprMachineState *spapr, uint32_t index,
> uint64_t *buid, hwaddr *pio,
> hwaddr *mmio32, hwaddr *mmio64,
> - unsigned n_dma, uint32_t *liobns,
> - hwaddr *nv2gpa, hwaddr *nv2atsd, Error **errp)
> + unsigned n_dma, uint32_t *liobns, Error **errp)
> {
> if (!spapr_phb_placement(spapr, index, buid, pio, mmio32, mmio64, n_dma,
> - liobns, nv2gpa, nv2atsd, errp)) {
> + liobns, errp)) {
> return false;
> }
> -
> - *nv2gpa = 0;
> - *nv2atsd = 0;
> return true;
> }
> static void spapr_machine_4_0_class_options(MachineClass *mc)
> @@ -5137,8 +5126,7 @@ DEFINE_SPAPR_MACHINE(2_8, "2.8", false);
> static bool phb_placement_2_7(SpaprMachineState *spapr, uint32_t index,
> uint64_t *buid, hwaddr *pio,
> hwaddr *mmio32, hwaddr *mmio64,
> - unsigned n_dma, uint32_t *liobns,
> - hwaddr *nv2gpa, hwaddr *nv2atsd, Error **errp)
> + unsigned n_dma, uint32_t *liobns, Error **errp)
> {
> /* Legacy PHB placement for pseries-2.7 and earlier machine types */
> const uint64_t base_buid = 0x800000020000000ULL;
> @@ -5183,8 +5171,6 @@ static bool phb_placement_2_7(SpaprMachineState *spapr,
> uint32_t index,
> * window into contiguous 32-bit and 64-bit windows
> */
>
> - *nv2gpa = 0;
> - *nv2atsd = 0;
> return true;
> }
>
> diff --git a/hw/ppc/spapr_numa.c b/hw/ppc/spapr_numa.c
> index a64098c375e0..b95ca3dd36fc 100644
> --- a/hw/ppc/spapr_numa.c
> +++ b/hw/ppc/spapr_numa.c
> @@ -108,20 +108,6 @@ static bool spapr_numa_is_symmetrical(MachineState *ms)
> return true;
> }
>
> -/*
> - * NVLink2-connected GPU RAM needs to be placed on a separate NUMA node.
> - * We assign a new numa ID per GPU in spapr_pci_collect_nvgpu() which is
> - * called from vPHB reset handler so we initialize the counter here.
> - * If no NUMA is configured from the QEMU side, we start from 1 as GPU RAM
> - * must be equally distant from any other node.
> - * The final value of spapr->gpu_numa_id is going to be written to
> - * max-associativity-domains in spapr_build_fdt().
> - */
> -unsigned int spapr_numa_initial_nvgpu_numa_id(MachineState *machine)
> -{
> - return MAX(1, machine->numa_state->num_nodes);
> -}
> -
> /*
> * This function will translate the user distances into
> * what the kernel understand as possible values: 10
> @@ -277,7 +263,7 @@ static void
> spapr_numa_FORM1_affinity_init(SpaprMachineState *spapr,
> {
> SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
> int nb_numa_nodes = machine->numa_state->num_nodes;
> - int i, j, max_nodes_with_gpus;
> + int i, j;
>
> /*
> * For all associativity arrays: first position is the size,
> @@ -293,17 +279,7 @@ static void
> spapr_numa_FORM1_affinity_init(SpaprMachineState *spapr,
> spapr->FORM1_assoc_array[i][FORM1_DIST_REF_POINTS] = cpu_to_be32(i);
> }
>
> - /*
> - * Initialize NVLink GPU associativity arrays. We know that
> - * the first GPU will take the first available NUMA id, and
> - * we'll have a maximum of NVGPU_MAX_NUM GPUs in the machine.
> - * At this point we're not sure if there are GPUs or not, but
> - * let's initialize the associativity arrays and allow NVLink
> - * GPUs to be handled like regular NUMA nodes later on.
> - */
> - max_nodes_with_gpus = nb_numa_nodes + NVGPU_MAX_NUM;
> -
> - for (i = nb_numa_nodes; i < max_nodes_with_gpus; i++) {
> + for (i = nb_numa_nodes; i < nb_numa_nodes; i++) {
> spapr->FORM1_assoc_array[i][0] = cpu_to_be32(FORM1_DIST_REF_POINTS);
>
> for (j = 1; j < FORM1_DIST_REF_POINTS; j++) {
> @@ -345,10 +321,6 @@ static void
> spapr_numa_FORM2_affinity_init(SpaprMachineState *spapr)
> * CPUs will write an additional 'vcpu_id' on top of the arrays
> * being initialized here. 'numa_id' is represented by the
> * index 'i' of the loop.
> - *
> - * Given that this initialization is also valid for GPU associativity
> - * arrays, handle everything in one single step by populating the
> - * arrays up to NUMA_NODES_MAX_NUM.
> */
> for (i = 0; i < NUMA_NODES_MAX_NUM; i++) {
> spapr->FORM2_assoc_array[i][0] = cpu_to_be32(1);
> @@ -461,8 +433,6 @@ static void
> spapr_numa_FORM1_write_rtas_dt(SpaprMachineState *spapr,
> {
> MachineState *ms = MACHINE(spapr);
> SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
> - uint32_t number_nvgpus_nodes = spapr->gpu_numa_id -
> - spapr_numa_initial_nvgpu_numa_id(ms);
> uint32_t refpoints[] = {
> cpu_to_be32(0x4),
> cpu_to_be32(0x3),
> @@ -470,7 +440,7 @@ static void
> spapr_numa_FORM1_write_rtas_dt(SpaprMachineState *spapr,
> cpu_to_be32(0x1),
> };
> uint32_t nr_refpoints = ARRAY_SIZE(refpoints);
> - uint32_t maxdomain = ms->numa_state->num_nodes + number_nvgpus_nodes;
> + uint32_t maxdomain = ms->numa_state->num_nodes;
> uint32_t maxdomains[] = {
> cpu_to_be32(4),
> cpu_to_be32(maxdomain),
> @@ -486,13 +456,12 @@ static void
> spapr_numa_FORM1_write_rtas_dt(SpaprMachineState *spapr,
> cpu_to_be32(0x4),
> cpu_to_be32(0x2),
> };
> - uint32_t legacy_maxdomain = spapr->gpu_numa_id > 1 ? 1 : 0;
> uint32_t legacy_maxdomains[] = {
> cpu_to_be32(4),
> - cpu_to_be32(legacy_maxdomain),
> - cpu_to_be32(legacy_maxdomain),
> - cpu_to_be32(legacy_maxdomain),
> - cpu_to_be32(spapr->gpu_numa_id),
> + cpu_to_be32(0),
> + cpu_to_be32(0),
> + cpu_to_be32(0),
> + cpu_to_be32(nb_numa_nodes ? nb_numa_nodes : 1),
> };
>
> G_STATIC_ASSERT(sizeof(legacy_refpoints) <= sizeof(refpoints));
> @@ -581,8 +550,6 @@ static void
> spapr_numa_FORM2_write_rtas_dt(SpaprMachineState *spapr,
> void *fdt, int rtas)
> {
> MachineState *ms = MACHINE(spapr);
> - uint32_t number_nvgpus_nodes = spapr->gpu_numa_id -
> - spapr_numa_initial_nvgpu_numa_id(ms);
>
> /*
> * In FORM2, ibm,associativity-reference-points will point to
> @@ -596,7 +563,7 @@ static void
> spapr_numa_FORM2_write_rtas_dt(SpaprMachineState *spapr,
> */
> uint32_t refpoints[] = { cpu_to_be32(1) };
>
> - uint32_t maxdomain = ms->numa_state->num_nodes + number_nvgpus_nodes;
> + uint32_t maxdomain = ms->numa_state->num_nodes;
> uint32_t maxdomains[] = { cpu_to_be32(1), cpu_to_be32(maxdomain) };
>
> _FDT(fdt_setprop(fdt, rtas, "ibm,associativity-reference-points",
> diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
> index 75aacda65a14..ce1495931744 100644
> --- a/hw/ppc/spapr_pci.c
> +++ b/hw/ppc/spapr_pci.c
> @@ -1443,8 +1443,6 @@ static int spapr_dt_pci_device(SpaprPhbState *sphb,
> PCIDevice *dev,
> _FDT(fdt_setprop_cell(fdt, offset, "ibm,pci-config-space-type",
> 0x1));
> }
>
> - spapr_phb_nvgpu_populate_pcidev_dt(dev, fdt, offset, sphb);
> -
> if (!IS_PCI_BRIDGE(dev)) {
> /* Properties only for non-bridges */
> uint32_t min_grant = pci_default_read_config(dev, PCI_MIN_GNT, 1);
> @@ -1757,8 +1755,6 @@ static void spapr_phb_unrealize(DeviceState *dev)
> int i;
> const unsigned windows_supported = spapr_phb_windows_supported(sphb);
>
> - spapr_phb_nvgpu_free(sphb);
> -
> if (sphb->msi) {
> g_hash_table_unref(sphb->msi);
> sphb->msi = NULL;
> @@ -2069,14 +2065,8 @@ void spapr_phb_dma_reset(SpaprPhbState *sphb)
> static void spapr_phb_reset(DeviceState *qdev)
> {
> SpaprPhbState *sphb = SPAPR_PCI_HOST_BRIDGE(qdev);
> - Error *err = NULL;
>
> spapr_phb_dma_reset(sphb);
> - spapr_phb_nvgpu_free(sphb);
> - spapr_phb_nvgpu_setup(sphb, &err);
> - if (err) {
> - error_report_err(err);
> - }
>
> /* Reset the IOMMU state */
> object_child_foreach(OBJECT(qdev), spapr_phb_children_reset, NULL);
> @@ -2112,8 +2102,6 @@ static Property spapr_phb_properties[] = {
> pre_2_8_migration, false),
> DEFINE_PROP_BOOL("pcie-extended-configuration-space", SpaprPhbState,
> pcie_ecs, true),
> - DEFINE_PROP_UINT64("gpa", SpaprPhbState, nv2_gpa_win_addr, 0),
> - DEFINE_PROP_UINT64("atsd", SpaprPhbState, nv2_atsd_win_addr, 0),
> DEFINE_PROP_BOOL("pre-5.1-associativity", SpaprPhbState,
> pre_5_1_assoc, false),
> DEFINE_PROP_END_OF_LIST(),
> @@ -2362,7 +2350,6 @@ int spapr_dt_phb(SpaprMachineState *spapr,
> SpaprPhbState *phb,
> };
> SpaprTceTable *tcet;
> SpaprDrc *drc;
> - Error *err = NULL;
>
> /* Start populating the FDT */
> _FDT(bus_off = fdt_add_subnode(fdt, 0, phb->dtbusname));
> @@ -2443,12 +2430,6 @@ int spapr_dt_phb(SpaprMachineState *spapr,
> SpaprPhbState *phb,
> return ret;
> }
>
> - spapr_phb_nvgpu_populate_dt(phb, fdt, bus_off, &err);
> - if (err) {
> - error_report_err(err);
> - }
> - spapr_phb_nvgpu_ram_populate_dt(phb, fdt);
> -
> return 0;
> }
>
> diff --git a/hw/ppc/spapr_pci_nvlink2.c b/hw/ppc/spapr_pci_nvlink2.c
> deleted file mode 100644
> index 2a8a11be1d68..000000000000
> --- a/hw/ppc/spapr_pci_nvlink2.c
> +++ /dev/null
> @@ -1,442 +0,0 @@
> -/*
> - * QEMU sPAPR PCI for NVLink2 pass through
> - *
> - * Copyright (c) 2019 Alexey Kardashevskiy, IBM Corporation.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> - * of this software and associated documentation files (the "Software"), to
> deal
> - * in the Software without restriction, including without limitation the
> rights
> - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> - * copies of the Software, and to permit persons to whom the Software is
> - * furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> FROM,
> - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> - * THE SOFTWARE.
> - */
> -#include "qemu/osdep.h"
> -#include "qapi/error.h"
> -#include "hw/pci/pci.h"
> -#include "hw/pci-host/spapr.h"
> -#include "hw/ppc/spapr_numa.h"
> -#include "qemu/error-report.h"
> -#include "hw/ppc/fdt.h"
> -#include "hw/pci/pci_bridge.h"
> -
> -#define PHANDLE_PCIDEV(phb, pdev) (0x12000000 | \
> - (((phb)->index) << 16) |
> ((pdev)->devfn))
> -#define PHANDLE_GPURAM(phb, n) (0x110000FF | ((n) << 8) | \
> - (((phb)->index) << 16))
> -#define PHANDLE_NVLINK(phb, gn, nn) (0x00130000 | (((phb)->index) << 8) | \
> - ((gn) << 4) | (nn))
> -
> -typedef struct SpaprPhbPciNvGpuSlot {
> - uint64_t tgt;
> - uint64_t gpa;
> - unsigned numa_id;
> - PCIDevice *gpdev;
> - int linknum;
> - struct {
> - uint64_t atsd_gpa;
> - PCIDevice *npdev;
> - uint32_t link_speed;
> - } links[NVGPU_MAX_LINKS];
> -} SpaprPhbPciNvGpuSlot;
> -
> -struct SpaprPhbPciNvGpuConfig {
> - uint64_t nv2_ram_current;
> - uint64_t nv2_atsd_current;
> - int num; /* number of non empty (i.e. tgt!=0) entries in slots[] */
> - SpaprPhbPciNvGpuSlot slots[NVGPU_MAX_NUM];
> - Error *err;
> -};
> -
> -static SpaprPhbPciNvGpuSlot *
> -spapr_nvgpu_get_slot(SpaprPhbPciNvGpuConfig *nvgpus, uint64_t tgt)
> -{
> - int i;
> -
> - /* Search for partially collected "slot" */
> - for (i = 0; i < nvgpus->num; ++i) {
> - if (nvgpus->slots[i].tgt == tgt) {
> - return &nvgpus->slots[i];
> - }
> - }
> -
> - if (nvgpus->num == ARRAY_SIZE(nvgpus->slots)) {
> - return NULL;
> - }
> -
> - i = nvgpus->num;
> - nvgpus->slots[i].tgt = tgt;
> - ++nvgpus->num;
> -
> - return &nvgpus->slots[i];
> -}
> -
> -static void spapr_pci_collect_nvgpu(SpaprPhbPciNvGpuConfig *nvgpus,
> - PCIDevice *pdev, uint64_t tgt,
> - MemoryRegion *mr, Error **errp)
> -{
> - MachineState *machine = MACHINE(qdev_get_machine());
> - SpaprMachineState *spapr = SPAPR_MACHINE(machine);
> - SpaprPhbPciNvGpuSlot *nvslot = spapr_nvgpu_get_slot(nvgpus, tgt);
> -
> - if (!nvslot) {
> - error_setg(errp, "Found too many GPUs per vPHB");
> - return;
> - }
> - g_assert(!nvslot->gpdev);
> - nvslot->gpdev = pdev;
> -
> - nvslot->gpa = nvgpus->nv2_ram_current;
> - nvgpus->nv2_ram_current += memory_region_size(mr);
> - nvslot->numa_id = spapr->gpu_numa_id;
> - ++spapr->gpu_numa_id;
> -}
> -
> -static void spapr_pci_collect_nvnpu(SpaprPhbPciNvGpuConfig *nvgpus,
> - PCIDevice *pdev, uint64_t tgt,
> - MemoryRegion *mr, Error **errp)
> -{
> - SpaprPhbPciNvGpuSlot *nvslot = spapr_nvgpu_get_slot(nvgpus, tgt);
> - int j;
> -
> - if (!nvslot) {
> - error_setg(errp, "Found too many NVLink bridges per vPHB");
> - return;
> - }
> -
> - j = nvslot->linknum;
> - if (j == ARRAY_SIZE(nvslot->links)) {
> - error_setg(errp, "Found too many NVLink bridges per GPU");
> - return;
> - }
> - ++nvslot->linknum;
> -
> - g_assert(!nvslot->links[j].npdev);
> - nvslot->links[j].npdev = pdev;
> - nvslot->links[j].atsd_gpa = nvgpus->nv2_atsd_current;
> - nvgpus->nv2_atsd_current += memory_region_size(mr);
> - nvslot->links[j].link_speed =
> - object_property_get_uint(OBJECT(pdev), "nvlink2-link-speed", NULL);
> -}
> -
> -static void spapr_phb_pci_collect_nvgpu(PCIBus *bus, PCIDevice *pdev,
> - void *opaque)
> -{
> - PCIBus *sec_bus;
> - Object *po = OBJECT(pdev);
> - uint64_t tgt = object_property_get_uint(po, "nvlink2-tgt", NULL);
> -
> - if (tgt) {
> - Error *local_err = NULL;
> - SpaprPhbPciNvGpuConfig *nvgpus = opaque;
> - Object *mr_gpu = object_property_get_link(po, "nvlink2-mr[0]", NULL);
> - Object *mr_npu = object_property_get_link(po, "nvlink2-atsd-mr[0]",
> - NULL);
> -
> - g_assert(mr_gpu || mr_npu);
> - if (mr_gpu) {
> - spapr_pci_collect_nvgpu(nvgpus, pdev, tgt, MEMORY_REGION(mr_gpu),
> - &local_err);
> - } else {
> - spapr_pci_collect_nvnpu(nvgpus, pdev, tgt, MEMORY_REGION(mr_npu),
> - &local_err);
> - }
> - error_propagate(&nvgpus->err, local_err);
> - }
> - if ((pci_default_read_config(pdev, PCI_HEADER_TYPE, 1) !=
> - PCI_HEADER_TYPE_BRIDGE)) {
> - return;
> - }
> -
> - sec_bus = pci_bridge_get_sec_bus(PCI_BRIDGE(pdev));
> - if (!sec_bus) {
> - return;
> - }
> -
> - pci_for_each_device_under_bus(sec_bus, spapr_phb_pci_collect_nvgpu,
> opaque);
> -}
> -
> -void spapr_phb_nvgpu_setup(SpaprPhbState *sphb, Error **errp)
> -{
> - int i, j, valid_gpu_num;
> - PCIBus *bus;
> -
> - /* Search for GPUs and NPUs */
> - if (!sphb->nv2_gpa_win_addr || !sphb->nv2_atsd_win_addr) {
> - return;
> - }
> -
> - sphb->nvgpus = g_new0(SpaprPhbPciNvGpuConfig, 1);
> - sphb->nvgpus->nv2_ram_current = sphb->nv2_gpa_win_addr;
> - sphb->nvgpus->nv2_atsd_current = sphb->nv2_atsd_win_addr;
> -
> - bus = PCI_HOST_BRIDGE(sphb)->bus;
> - pci_for_each_device_under_bus(bus, spapr_phb_pci_collect_nvgpu,
> - sphb->nvgpus);
> -
> - if (sphb->nvgpus->err) {
> - error_propagate(errp, sphb->nvgpus->err);
> - sphb->nvgpus->err = NULL;
> - goto cleanup_exit;
> - }
> -
> - /* Add found GPU RAM and ATSD MRs if found */
> - for (i = 0, valid_gpu_num = 0; i < sphb->nvgpus->num; ++i) {
> - Object *nvmrobj;
> - SpaprPhbPciNvGpuSlot *nvslot = &sphb->nvgpus->slots[i];
> -
> - if (!nvslot->gpdev) {
> - continue;
> - }
> - nvmrobj = object_property_get_link(OBJECT(nvslot->gpdev),
> - "nvlink2-mr[0]", NULL);
> - /* ATSD is pointless without GPU RAM MR so skip those */
> - if (!nvmrobj) {
> - continue;
> - }
> -
> - ++valid_gpu_num;
> - memory_region_add_subregion(get_system_memory(), nvslot->gpa,
> - MEMORY_REGION(nvmrobj));
> -
> - for (j = 0; j < nvslot->linknum; ++j) {
> - Object *atsdmrobj;
> -
> - atsdmrobj =
> object_property_get_link(OBJECT(nvslot->links[j].npdev),
> - "nvlink2-atsd-mr[0]", NULL);
> - if (!atsdmrobj) {
> - continue;
> - }
> - memory_region_add_subregion(get_system_memory(),
> - nvslot->links[j].atsd_gpa,
> - MEMORY_REGION(atsdmrobj));
> - }
> - }
> -
> - if (valid_gpu_num) {
> - return;
> - }
> - /* We did not find any interesting GPU */
> -cleanup_exit:
> - g_free(sphb->nvgpus);
> - sphb->nvgpus = NULL;
> -}
> -
> -void spapr_phb_nvgpu_free(SpaprPhbState *sphb)
> -{
> - int i, j;
> -
> - if (!sphb->nvgpus) {
> - return;
> - }
> -
> - for (i = 0; i < sphb->nvgpus->num; ++i) {
> - SpaprPhbPciNvGpuSlot *nvslot = &sphb->nvgpus->slots[i];
> - Object *nv_mrobj = object_property_get_link(OBJECT(nvslot->gpdev),
> - "nvlink2-mr[0]", NULL);
> -
> - if (nv_mrobj) {
> - memory_region_del_subregion(get_system_memory(),
> - MEMORY_REGION(nv_mrobj));
> - }
> - for (j = 0; j < nvslot->linknum; ++j) {
> - PCIDevice *npdev = nvslot->links[j].npdev;
> - Object *atsd_mrobj;
> - atsd_mrobj = object_property_get_link(OBJECT(npdev),
> - "nvlink2-atsd-mr[0]",
> NULL);
> - if (atsd_mrobj) {
> - memory_region_del_subregion(get_system_memory(),
> - MEMORY_REGION(atsd_mrobj));
> - }
> - }
> - }
> - g_free(sphb->nvgpus);
> - sphb->nvgpus = NULL;
> -}
> -
> -void spapr_phb_nvgpu_populate_dt(SpaprPhbState *sphb, void *fdt, int bus_off,
> - Error **errp)
> -{
> - int i, j, atsdnum = 0;
> - uint64_t atsd[8]; /* The existing limitation of known guests */
> -
> - if (!sphb->nvgpus) {
> - return;
> - }
> -
> - for (i = 0; (i < sphb->nvgpus->num) && (atsdnum < ARRAY_SIZE(atsd));
> ++i) {
> - SpaprPhbPciNvGpuSlot *nvslot = &sphb->nvgpus->slots[i];
> -
> - if (!nvslot->gpdev) {
> - continue;
> - }
> - for (j = 0; j < nvslot->linknum; ++j) {
> - if (!nvslot->links[j].atsd_gpa) {
> - continue;
> - }
> -
> - if (atsdnum == ARRAY_SIZE(atsd)) {
> - error_report("Only %"PRIuPTR" ATSD registers supported",
> - ARRAY_SIZE(atsd));
> - break;
> - }
> - atsd[atsdnum] = cpu_to_be64(nvslot->links[j].atsd_gpa);
> - ++atsdnum;
> - }
> - }
> -
> - if (!atsdnum) {
> - error_setg(errp, "No ATSD registers found");
> - return;
> - }
> -
> - if (!spapr_phb_eeh_available(sphb)) {
> - /*
> - * ibm,mmio-atsd contains ATSD registers; these belong to an NPU PHB
> - * which we do not emulate as a separate device. Instead we put
> - * ibm,mmio-atsd to the vPHB with GPU and make sure that we do not
> - * put GPUs from different IOMMU groups to the same vPHB to ensure
> - * that the guest will use ATSDs from the corresponding NPU.
> - */
> - error_setg(errp, "ATSD requires separate vPHB per GPU IOMMU group");
> - return;
> - }
> -
> - _FDT((fdt_setprop(fdt, bus_off, "ibm,mmio-atsd", atsd,
> - atsdnum * sizeof(atsd[0]))));
> -}
> -
> -void spapr_phb_nvgpu_ram_populate_dt(SpaprPhbState *sphb, void *fdt)
> -{
> - int i, j, linkidx, npuoff;
> - g_autofree char *npuname = NULL;
> -
> - if (!sphb->nvgpus) {
> - return;
> - }
> -
> - npuname = g_strdup_printf("npuphb%d", sphb->index);
> - npuoff = fdt_add_subnode(fdt, 0, npuname);
> - _FDT(npuoff);
> - _FDT(fdt_setprop_cell(fdt, npuoff, "#address-cells", 1));
> - _FDT(fdt_setprop_cell(fdt, npuoff, "#size-cells", 0));
> - /* Advertise NPU as POWER9 so the guest can enable NPU2 contexts */
> - _FDT((fdt_setprop_string(fdt, npuoff, "compatible", "ibm,power9-npu")));
> -
> - for (i = 0, linkidx = 0; i < sphb->nvgpus->num; ++i) {
> - for (j = 0; j < sphb->nvgpus->slots[i].linknum; ++j) {
> - g_autofree char *linkname = g_strdup_printf("link@%d", linkidx);
> - int off = fdt_add_subnode(fdt, npuoff, linkname);
> -
> - _FDT(off);
> - /* _FDT((fdt_setprop_cell(fdt, off, "reg", linkidx))); */
> - _FDT((fdt_setprop_string(fdt, off, "compatible",
> - "ibm,npu-link")));
> - _FDT((fdt_setprop_cell(fdt, off, "phandle",
> - PHANDLE_NVLINK(sphb, i, j))));
> - _FDT((fdt_setprop_cell(fdt, off, "ibm,npu-link-index",
> linkidx)));
> - ++linkidx;
> - }
> - }
> -
> - /* Add memory nodes for GPU RAM and mark them unusable */
> - for (i = 0; i < sphb->nvgpus->num; ++i) {
> - SpaprPhbPciNvGpuSlot *nvslot = &sphb->nvgpus->slots[i];
> - Object *nv_mrobj = object_property_get_link(OBJECT(nvslot->gpdev),
> - "nvlink2-mr[0]",
> - &error_abort);
> - uint64_t size = object_property_get_uint(nv_mrobj, "size", NULL);
> - uint64_t mem_reg[2] = { cpu_to_be64(nvslot->gpa), cpu_to_be64(size)
> };
> - g_autofree char *mem_name = g_strdup_printf("memory@%"PRIx64,
> - nvslot->gpa);
> - int off = fdt_add_subnode(fdt, 0, mem_name);
> -
> - _FDT(off);
> - _FDT((fdt_setprop_string(fdt, off, "device_type", "memory")));
> - _FDT((fdt_setprop(fdt, off, "reg", mem_reg, sizeof(mem_reg))));
> -
> - spapr_numa_write_associativity_dt(SPAPR_MACHINE(qdev_get_machine()),
> - fdt, off, nvslot->numa_id);
> -
> - _FDT((fdt_setprop_string(fdt, off, "compatible",
> - "ibm,coherent-device-memory")));
> -
> - mem_reg[1] = cpu_to_be64(0);
> - _FDT((fdt_setprop(fdt, off, "linux,usable-memory", mem_reg,
> - sizeof(mem_reg))));
> - _FDT((fdt_setprop_cell(fdt, off, "phandle",
> - PHANDLE_GPURAM(sphb, i))));
> - }
> -
> -}
> -
> -void spapr_phb_nvgpu_populate_pcidev_dt(PCIDevice *dev, void *fdt, int
> offset,
> - SpaprPhbState *sphb)
> -{
> - int i, j;
> -
> - if (!sphb->nvgpus) {
> - return;
> - }
> -
> - for (i = 0; i < sphb->nvgpus->num; ++i) {
> - SpaprPhbPciNvGpuSlot *nvslot = &sphb->nvgpus->slots[i];
> -
> - /* Skip "slot" without attached GPU */
> - if (!nvslot->gpdev) {
> - continue;
> - }
> - if (dev == nvslot->gpdev) {
> - g_autofree uint32_t *npus = g_new(uint32_t, nvslot->linknum);
> -
> - for (j = 0; j < nvslot->linknum; ++j) {
> - PCIDevice *npdev = nvslot->links[j].npdev;
> -
> - npus[j] = cpu_to_be32(PHANDLE_PCIDEV(sphb, npdev));
> - }
> - _FDT(fdt_setprop(fdt, offset, "ibm,npu", npus,
> - j * sizeof(npus[0])));
> - _FDT((fdt_setprop_cell(fdt, offset, "phandle",
> - PHANDLE_PCIDEV(sphb, dev))));
> - continue;
> - }
> -
> - for (j = 0; j < nvslot->linknum; ++j) {
> - if (dev != nvslot->links[j].npdev) {
> - continue;
> - }
> -
> - _FDT((fdt_setprop_cell(fdt, offset, "phandle",
> - PHANDLE_PCIDEV(sphb, dev))));
> - _FDT(fdt_setprop_cell(fdt, offset, "ibm,gpu",
> - PHANDLE_PCIDEV(sphb, nvslot->gpdev)));
> - _FDT((fdt_setprop_cell(fdt, offset, "ibm,nvlink",
> - PHANDLE_NVLINK(sphb, i, j))));
> - /*
> - * If we ever want to emulate GPU RAM at the same location as on
> - * the host - here is the encoding GPA->TGT:
> - *
> - * gta = ((sphb->nv2_gpa >> 42) & 0x1) << 42;
> - * gta |= ((sphb->nv2_gpa >> 45) & 0x3) << 43;
> - * gta |= ((sphb->nv2_gpa >> 49) & 0x3) << 45;
> - * gta |= sphb->nv2_gpa & ((1UL << 43) - 1);
> - */
> - _FDT(fdt_setprop_cell(fdt, offset, "memory-region",
> - PHANDLE_GPURAM(sphb, i)));
> - _FDT(fdt_setprop_u64(fdt, offset, "ibm,device-tgt-addr",
> - nvslot->tgt));
> - _FDT(fdt_setprop_cell(fdt, offset, "ibm,nvlink-speed",
> - nvslot->links[j].link_speed));
> - }
> - }
> -}
> diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
> index f4ff83680572..84b1a7b9485c 100644
> --- a/hw/vfio/pci-quirks.c
> +++ b/hw/vfio/pci-quirks.c
> @@ -1610,121 +1610,6 @@ static int vfio_add_nv_gpudirect_cap(VFIOPCIDevice
> *vdev, Error **errp)
> return 0;
> }
>
> -int vfio_pci_nvidia_v100_ram_init(VFIOPCIDevice *vdev, Error **errp)
> -{
> - int ret;
> - void *p;
> - struct vfio_region_info *nv2reg = NULL;
> - struct vfio_info_cap_header *hdr;
> - struct vfio_region_info_cap_nvlink2_ssatgt *cap;
> - VFIOQuirk *quirk;
> -
> - ret = vfio_get_dev_region_info(&vdev->vbasedev,
> - VFIO_REGION_TYPE_PCI_VENDOR_TYPE |
> - PCI_VENDOR_ID_NVIDIA,
> - VFIO_REGION_SUBTYPE_NVIDIA_NVLINK2_RAM,
> - &nv2reg);
> - if (ret) {
> - return ret;
> - }
> -
> - hdr = vfio_get_region_info_cap(nv2reg,
> VFIO_REGION_INFO_CAP_NVLINK2_SSATGT);
> - if (!hdr) {
> - ret = -ENODEV;
> - goto free_exit;
> - }
> - cap = (void *) hdr;
> -
> - p = mmap(NULL, nv2reg->size, PROT_READ | PROT_WRITE,
> - MAP_SHARED, vdev->vbasedev.fd, nv2reg->offset);
> - if (p == MAP_FAILED) {
> - ret = -errno;
> - goto free_exit;
> - }
> -
> - quirk = vfio_quirk_alloc(1);
> - memory_region_init_ram_ptr(&quirk->mem[0], OBJECT(vdev), "nvlink2-mr",
> - nv2reg->size, p);
> - QLIST_INSERT_HEAD(&vdev->bars[0].quirks, quirk, next);
> -
> - object_property_add_uint64_ptr(OBJECT(vdev), "nvlink2-tgt",
> - (uint64_t *) &cap->tgt,
> - OBJ_PROP_FLAG_READ);
> - trace_vfio_pci_nvidia_gpu_setup_quirk(vdev->vbasedev.name, cap->tgt,
> - nv2reg->size);
> -free_exit:
> - g_free(nv2reg);
> -
> - return ret;
> -}
> -
> -int vfio_pci_nvlink2_init(VFIOPCIDevice *vdev, Error **errp)
> -{
> - int ret;
> - void *p;
> - struct vfio_region_info *atsdreg = NULL;
> - struct vfio_info_cap_header *hdr;
> - struct vfio_region_info_cap_nvlink2_ssatgt *captgt;
> - struct vfio_region_info_cap_nvlink2_lnkspd *capspeed;
> - VFIOQuirk *quirk;
> -
> - ret = vfio_get_dev_region_info(&vdev->vbasedev,
> - VFIO_REGION_TYPE_PCI_VENDOR_TYPE |
> - PCI_VENDOR_ID_IBM,
> - VFIO_REGION_SUBTYPE_IBM_NVLINK2_ATSD,
> - &atsdreg);
> - if (ret) {
> - return ret;
> - }
> -
> - hdr = vfio_get_region_info_cap(atsdreg,
> - VFIO_REGION_INFO_CAP_NVLINK2_SSATGT);
> - if (!hdr) {
> - ret = -ENODEV;
> - goto free_exit;
> - }
> - captgt = (void *) hdr;
> -
> - hdr = vfio_get_region_info_cap(atsdreg,
> - VFIO_REGION_INFO_CAP_NVLINK2_LNKSPD);
> - if (!hdr) {
> - ret = -ENODEV;
> - goto free_exit;
> - }
> - capspeed = (void *) hdr;
> -
> - /* Some NVLink bridges may not have assigned ATSD */
> - if (atsdreg->size) {
> - p = mmap(NULL, atsdreg->size, PROT_READ | PROT_WRITE,
> - MAP_SHARED, vdev->vbasedev.fd, atsdreg->offset);
> - if (p == MAP_FAILED) {
> - ret = -errno;
> - goto free_exit;
> - }
> -
> - quirk = vfio_quirk_alloc(1);
> - memory_region_init_ram_device_ptr(&quirk->mem[0], OBJECT(vdev),
> - "nvlink2-atsd-mr", atsdreg->size,
> p);
> - QLIST_INSERT_HEAD(&vdev->bars[0].quirks, quirk, next);
> - }
> -
> - object_property_add_uint64_ptr(OBJECT(vdev), "nvlink2-tgt",
> - (uint64_t *) &captgt->tgt,
> - OBJ_PROP_FLAG_READ);
> - trace_vfio_pci_nvlink2_setup_quirk_ssatgt(vdev->vbasedev.name,
> captgt->tgt,
> - atsdreg->size);
> -
> - object_property_add_uint32_ptr(OBJECT(vdev), "nvlink2-link-speed",
> - &capspeed->link_speed,
> - OBJ_PROP_FLAG_READ);
> - trace_vfio_pci_nvlink2_setup_quirk_lnkspd(vdev->vbasedev.name,
> - capspeed->link_speed);
> -free_exit:
> - g_free(atsdreg);
> -
> - return ret;
> -}
> -
> /*
> * The VMD endpoint provides a real PCIe domain to the guest and the guest
> * kernel performs enumeration of the VMD sub-device domain. Guest
> transactions
> diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
> index a205c6b1130f..3b2ca3c24ca2 100644
> --- a/hw/vfio/pci.c
> +++ b/hw/vfio/pci.c
> @@ -3271,20 +3271,6 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
> }
> }
>
> - if (vfio_pci_is(vdev, PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID)) {
> - ret = vfio_pci_nvidia_v100_ram_init(vdev, errp);
> - if (ret && ret != -ENODEV) {
> - error_report("Failed to setup NVIDIA V100 GPU RAM");
> - }
> - }
> -
> - if (vfio_pci_is(vdev, PCI_VENDOR_ID_IBM, PCI_ANY_ID)) {
> - ret = vfio_pci_nvlink2_init(vdev, errp);
> - if (ret && ret != -ENODEV) {
> - error_report("Failed to setup NVlink2 bridge");
> - }
> - }
> -
> if (!pdev->failover_pair_id) {
> if (!vfio_migration_realize(vbasedev, errp)) {
> goto out_deregister;
> diff --git a/hw/ppc/meson.build b/hw/ppc/meson.build
> index a313d4b964ad..7c2c52434a66 100644
> --- a/hw/ppc/meson.build
> +++ b/hw/ppc/meson.build
> @@ -36,7 +36,6 @@ ppc_ss.add(when: ['CONFIG_PSERIES', 'CONFIG_TCG'], if_true:
> files(
> ppc_ss.add(when: 'CONFIG_SPAPR_RNG', if_true: files('spapr_rng.c'))
> ppc_ss.add(when: ['CONFIG_PSERIES', 'CONFIG_LINUX'], if_true: files(
> 'spapr_pci_vfio.c',
> - 'spapr_pci_nvlink2.c'
> ))
>
> # IBM PowerNV
> diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
> index 81ec7c7a958b..e64ca4a01961 100644
> --- a/hw/vfio/trace-events
> +++ b/hw/vfio/trace-events
> @@ -82,10 +82,6 @@ vfio_ioeventfd_handler(const char *name, uint64_t addr,
> unsigned size, uint64_t
> vfio_ioeventfd_init(const char *name, uint64_t addr, unsigned size, uint64_t
> data, bool vfio) "%s+0x%"PRIx64"[%d]:0x%"PRIx64" vfio:%d"
> vfio_pci_igd_opregion_enabled(const char *name) "%s"
>
> -vfio_pci_nvidia_gpu_setup_quirk(const char *name, uint64_t tgt, uint64_t
> size) "%s tgt=0x%"PRIx64" size=0x%"PRIx64
> -vfio_pci_nvlink2_setup_quirk_ssatgt(const char *name, uint64_t tgt, uint64_t
> size) "%s tgt=0x%"PRIx64" size=0x%"PRIx64
> -vfio_pci_nvlink2_setup_quirk_lnkspd(const char *name, uint32_t link_speed)
> "%s link_speed=0x%x"
> -
> # igd.c
> vfio_pci_igd_bar4_write(const char *name, uint32_t index, uint32_t data,
> uint32_t base) "%s [0x%03x] 0x%08x -> 0x%08x"
> vfio_pci_igd_bdsm_enabled(const char *name, int size) "%s %dMB"
