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diff --git a/qemu/linux-headers/linux/vfio.h b/qemu/linux-headers/linux/vfio.h
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-/*
- * VFIO API definition
- *
- * Copyright (C) 2012 Red Hat, Inc. All rights reserved.
- * Author: Alex Williamson <alex.williamson@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef VFIO_H
-#define VFIO_H
-
-#include <linux/types.h>
-#include <linux/ioctl.h>
-
-#define VFIO_API_VERSION 0
-
-
-/* Kernel & User level defines for VFIO IOCTLs. */
-
-/* Extensions */
-
-#define VFIO_TYPE1_IOMMU 1
-#define VFIO_SPAPR_TCE_IOMMU 2
-#define VFIO_TYPE1v2_IOMMU 3
-/*
- * IOMMU enforces DMA cache coherence (ex. PCIe NoSnoop stripping). This
- * capability is subject to change as groups are added or removed.
- */
-#define VFIO_DMA_CC_IOMMU 4
-
-/* Check if EEH is supported */
-#define VFIO_EEH 5
-
-/* Two-stage IOMMU */
-#define VFIO_TYPE1_NESTING_IOMMU 6 /* Implies v2 */
-
-#define VFIO_SPAPR_TCE_v2_IOMMU 7
-
-/*
- * The No-IOMMU IOMMU offers no translation or isolation for devices and
- * supports no ioctls outside of VFIO_CHECK_EXTENSION. Use of VFIO's No-IOMMU
- * code will taint the host kernel and should be used with extreme caution.
- */
-#define VFIO_NOIOMMU_IOMMU 8
-
-/*
- * The IOCTL interface is designed for extensibility by embedding the
- * structure length (argsz) and flags into structures passed between
- * kernel and userspace. We therefore use the _IO() macro for these
- * defines to avoid implicitly embedding a size into the ioctl request.
- * As structure fields are added, argsz will increase to match and flag
- * bits will be defined to indicate additional fields with valid data.
- * It's *always* the caller's responsibility to indicate the size of
- * the structure passed by setting argsz appropriately.
- */
-
-#define VFIO_TYPE (';')
-#define VFIO_BASE 100
-
-/*
- * For extension of INFO ioctls, VFIO makes use of a capability chain
- * designed after PCI/e capabilities. A flag bit indicates whether
- * this capability chain is supported and a field defined in the fixed
- * structure defines the offset of the first capability in the chain.
- * This field is only valid when the corresponding bit in the flags
- * bitmap is set. This offset field is relative to the start of the
- * INFO buffer, as is the next field within each capability header.
- * The id within the header is a shared address space per INFO ioctl,
- * while the version field is specific to the capability id. The
- * contents following the header are specific to the capability id.
- */
-struct vfio_info_cap_header {
- __u16 id; /* Identifies capability */
- __u16 version; /* Version specific to the capability ID */
- __u32 next; /* Offset of next capability */
-};
-
-/*
- * Callers of INFO ioctls passing insufficiently sized buffers will see
- * the capability chain flag bit set, a zero value for the first capability
- * offset (if available within the provided argsz), and argsz will be
- * updated to report the necessary buffer size. For compatibility, the
- * INFO ioctl will not report error in this case, but the capability chain
- * will not be available.
- */
-
-/* -------- IOCTLs for VFIO file descriptor (/dev/vfio/vfio) -------- */
-
-/**
- * VFIO_GET_API_VERSION - _IO(VFIO_TYPE, VFIO_BASE + 0)
- *
- * Report the version of the VFIO API. This allows us to bump the entire
- * API version should we later need to add or change features in incompatible
- * ways.
- * Return: VFIO_API_VERSION
- * Availability: Always
- */
-#define VFIO_GET_API_VERSION _IO(VFIO_TYPE, VFIO_BASE + 0)
-
-/**
- * VFIO_CHECK_EXTENSION - _IOW(VFIO_TYPE, VFIO_BASE + 1, __u32)
- *
- * Check whether an extension is supported.
- * Return: 0 if not supported, 1 (or some other positive integer) if supported.
- * Availability: Always
- */
-#define VFIO_CHECK_EXTENSION _IO(VFIO_TYPE, VFIO_BASE + 1)
-
-/**
- * VFIO_SET_IOMMU - _IOW(VFIO_TYPE, VFIO_BASE + 2, __s32)
- *
- * Set the iommu to the given type. The type must be supported by an
- * iommu driver as verified by calling CHECK_EXTENSION using the same
- * type. A group must be set to this file descriptor before this
- * ioctl is available. The IOMMU interfaces enabled by this call are
- * specific to the value set.
- * Return: 0 on success, -errno on failure
- * Availability: When VFIO group attached
- */
-#define VFIO_SET_IOMMU _IO(VFIO_TYPE, VFIO_BASE + 2)
-
-/* -------- IOCTLs for GROUP file descriptors (/dev/vfio/$GROUP) -------- */
-
-/**
- * VFIO_GROUP_GET_STATUS - _IOR(VFIO_TYPE, VFIO_BASE + 3,
- * struct vfio_group_status)
- *
- * Retrieve information about the group. Fills in provided
- * struct vfio_group_info. Caller sets argsz.
- * Return: 0 on succes, -errno on failure.
- * Availability: Always
- */
-struct vfio_group_status {
- __u32 argsz;
- __u32 flags;
-#define VFIO_GROUP_FLAGS_VIABLE (1 << 0)
-#define VFIO_GROUP_FLAGS_CONTAINER_SET (1 << 1)
-};
-#define VFIO_GROUP_GET_STATUS _IO(VFIO_TYPE, VFIO_BASE + 3)
-
-/**
- * VFIO_GROUP_SET_CONTAINER - _IOW(VFIO_TYPE, VFIO_BASE + 4, __s32)
- *
- * Set the container for the VFIO group to the open VFIO file
- * descriptor provided. Groups may only belong to a single
- * container. Containers may, at their discretion, support multiple
- * groups. Only when a container is set are all of the interfaces
- * of the VFIO file descriptor and the VFIO group file descriptor
- * available to the user.
- * Return: 0 on success, -errno on failure.
- * Availability: Always
- */
-#define VFIO_GROUP_SET_CONTAINER _IO(VFIO_TYPE, VFIO_BASE + 4)
-
-/**
- * VFIO_GROUP_UNSET_CONTAINER - _IO(VFIO_TYPE, VFIO_BASE + 5)
- *
- * Remove the group from the attached container. This is the
- * opposite of the SET_CONTAINER call and returns the group to
- * an initial state. All device file descriptors must be released
- * prior to calling this interface. When removing the last group
- * from a container, the IOMMU will be disabled and all state lost,
- * effectively also returning the VFIO file descriptor to an initial
- * state.
- * Return: 0 on success, -errno on failure.
- * Availability: When attached to container
- */
-#define VFIO_GROUP_UNSET_CONTAINER _IO(VFIO_TYPE, VFIO_BASE + 5)
-
-/**
- * VFIO_GROUP_GET_DEVICE_FD - _IOW(VFIO_TYPE, VFIO_BASE + 6, char)
- *
- * Return a new file descriptor for the device object described by
- * the provided string. The string should match a device listed in
- * the devices subdirectory of the IOMMU group sysfs entry. The
- * group containing the device must already be added to this context.
- * Return: new file descriptor on success, -errno on failure.
- * Availability: When attached to container
- */
-#define VFIO_GROUP_GET_DEVICE_FD _IO(VFIO_TYPE, VFIO_BASE + 6)
-
-/* --------------- IOCTLs for DEVICE file descriptors --------------- */
-
-/**
- * VFIO_DEVICE_GET_INFO - _IOR(VFIO_TYPE, VFIO_BASE + 7,
- * struct vfio_device_info)
- *
- * Retrieve information about the device. Fills in provided
- * struct vfio_device_info. Caller sets argsz.
- * Return: 0 on success, -errno on failure.
- */
-struct vfio_device_info {
- __u32 argsz;
- __u32 flags;
-#define VFIO_DEVICE_FLAGS_RESET (1 << 0) /* Device supports reset */
-#define VFIO_DEVICE_FLAGS_PCI (1 << 1) /* vfio-pci device */
-#define VFIO_DEVICE_FLAGS_PLATFORM (1 << 2) /* vfio-platform device */
-#define VFIO_DEVICE_FLAGS_AMBA (1 << 3) /* vfio-amba device */
- __u32 num_regions; /* Max region index + 1 */
- __u32 num_irqs; /* Max IRQ index + 1 */
-};
-#define VFIO_DEVICE_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 7)
-
-/**
- * VFIO_DEVICE_GET_REGION_INFO - _IOWR(VFIO_TYPE, VFIO_BASE + 8,
- * struct vfio_region_info)
- *
- * Retrieve information about a device region. Caller provides
- * struct vfio_region_info with index value set. Caller sets argsz.
- * Implementation of region mapping is bus driver specific. This is
- * intended to describe MMIO, I/O port, as well as bus specific
- * regions (ex. PCI config space). Zero sized regions may be used
- * to describe unimplemented regions (ex. unimplemented PCI BARs).
- * Return: 0 on success, -errno on failure.
- */
-struct vfio_region_info {
- __u32 argsz;
- __u32 flags;
-#define VFIO_REGION_INFO_FLAG_READ (1 << 0) /* Region supports read */
-#define VFIO_REGION_INFO_FLAG_WRITE (1 << 1) /* Region supports write */
-#define VFIO_REGION_INFO_FLAG_MMAP (1 << 2) /* Region supports mmap */
-#define VFIO_REGION_INFO_FLAG_CAPS (1 << 3) /* Info supports caps */
- __u32 index; /* Region index */
- __u32 cap_offset; /* Offset within info struct of first cap */
- __u64 size; /* Region size (bytes) */
- __u64 offset; /* Region offset from start of device fd */
-};
-#define VFIO_DEVICE_GET_REGION_INFO _IO(VFIO_TYPE, VFIO_BASE + 8)
-
-/*
- * The sparse mmap capability allows finer granularity of specifying areas
- * within a region with mmap support. When specified, the user should only
- * mmap the offset ranges specified by the areas array. mmaps outside of the
- * areas specified may fail (such as the range covering a PCI MSI-X table) or
- * may result in improper device behavior.
- *
- * The structures below define version 1 of this capability.
- */
-#define VFIO_REGION_INFO_CAP_SPARSE_MMAP 1
-
-struct vfio_region_sparse_mmap_area {
- __u64 offset; /* Offset of mmap'able area within region */
- __u64 size; /* Size of mmap'able area */
-};
-
-struct vfio_region_info_cap_sparse_mmap {
- struct vfio_info_cap_header header;
- __u32 nr_areas;
- __u32 reserved;
- struct vfio_region_sparse_mmap_area areas[];
-};
-
-/*
- * The device specific type capability allows regions unique to a specific
- * device or class of devices to be exposed. This helps solve the problem for
- * vfio bus drivers of defining which region indexes correspond to which region
- * on the device, without needing to resort to static indexes, as done by
- * vfio-pci. For instance, if we were to go back in time, we might remove
- * VFIO_PCI_VGA_REGION_INDEX and let vfio-pci simply define that all indexes
- * greater than or equal to VFIO_PCI_NUM_REGIONS are device specific and we'd
- * make a "VGA" device specific type to describe the VGA access space. This
- * means that non-VGA devices wouldn't need to waste this index, and thus the
- * address space associated with it due to implementation of device file
- * descriptor offsets in vfio-pci.
- *
- * The current implementation is now part of the user ABI, so we can't use this
- * for VGA, but there are other upcoming use cases, such as opregions for Intel
- * IGD devices and framebuffers for vGPU devices. We missed VGA, but we'll
- * use this for future additions.
- *
- * The structure below defines version 1 of this capability.
- */
-#define VFIO_REGION_INFO_CAP_TYPE 2
-
-struct vfio_region_info_cap_type {
- struct vfio_info_cap_header header;
- __u32 type; /* global per bus driver */
- __u32 subtype; /* type specific */
-};
-
-#define VFIO_REGION_TYPE_PCI_VENDOR_TYPE (1 << 31)
-#define VFIO_REGION_TYPE_PCI_VENDOR_MASK (0xffff)
-
-/* 8086 Vendor sub-types */
-#define VFIO_REGION_SUBTYPE_INTEL_IGD_OPREGION (1)
-#define VFIO_REGION_SUBTYPE_INTEL_IGD_HOST_CFG (2)
-#define VFIO_REGION_SUBTYPE_INTEL_IGD_LPC_CFG (3)
-
-/**
- * VFIO_DEVICE_GET_IRQ_INFO - _IOWR(VFIO_TYPE, VFIO_BASE + 9,
- * struct vfio_irq_info)
- *
- * Retrieve information about a device IRQ. Caller provides
- * struct vfio_irq_info with index value set. Caller sets argsz.
- * Implementation of IRQ mapping is bus driver specific. Indexes
- * using multiple IRQs are primarily intended to support MSI-like
- * interrupt blocks. Zero count irq blocks may be used to describe
- * unimplemented interrupt types.
- *
- * The EVENTFD flag indicates the interrupt index supports eventfd based
- * signaling.
- *
- * The MASKABLE flags indicates the index supports MASK and UNMASK
- * actions described below.
- *
- * AUTOMASKED indicates that after signaling, the interrupt line is
- * automatically masked by VFIO and the user needs to unmask the line
- * to receive new interrupts. This is primarily intended to distinguish
- * level triggered interrupts.
- *
- * The NORESIZE flag indicates that the interrupt lines within the index
- * are setup as a set and new subindexes cannot be enabled without first
- * disabling the entire index. This is used for interrupts like PCI MSI
- * and MSI-X where the driver may only use a subset of the available
- * indexes, but VFIO needs to enable a specific number of vectors
- * upfront. In the case of MSI-X, where the user can enable MSI-X and
- * then add and unmask vectors, it's up to userspace to make the decision
- * whether to allocate the maximum supported number of vectors or tear
- * down setup and incrementally increase the vectors as each is enabled.
- */
-struct vfio_irq_info {
- __u32 argsz;
- __u32 flags;
-#define VFIO_IRQ_INFO_EVENTFD (1 << 0)
-#define VFIO_IRQ_INFO_MASKABLE (1 << 1)
-#define VFIO_IRQ_INFO_AUTOMASKED (1 << 2)
-#define VFIO_IRQ_INFO_NORESIZE (1 << 3)
- __u32 index; /* IRQ index */
- __u32 count; /* Number of IRQs within this index */
-};
-#define VFIO_DEVICE_GET_IRQ_INFO _IO(VFIO_TYPE, VFIO_BASE + 9)
-
-/**
- * VFIO_DEVICE_SET_IRQS - _IOW(VFIO_TYPE, VFIO_BASE + 10, struct vfio_irq_set)
- *
- * Set signaling, masking, and unmasking of interrupts. Caller provides
- * struct vfio_irq_set with all fields set. 'start' and 'count' indicate
- * the range of subindexes being specified.
- *
- * The DATA flags specify the type of data provided. If DATA_NONE, the
- * operation performs the specified action immediately on the specified
- * interrupt(s). For example, to unmask AUTOMASKED interrupt [0,0]:
- * flags = (DATA_NONE|ACTION_UNMASK), index = 0, start = 0, count = 1.
- *
- * DATA_BOOL allows sparse support for the same on arrays of interrupts.
- * For example, to mask interrupts [0,1] and [0,3] (but not [0,2]):
- * flags = (DATA_BOOL|ACTION_MASK), index = 0, start = 1, count = 3,
- * data = {1,0,1}
- *
- * DATA_EVENTFD binds the specified ACTION to the provided __s32 eventfd.
- * A value of -1 can be used to either de-assign interrupts if already
- * assigned or skip un-assigned interrupts. For example, to set an eventfd
- * to be trigger for interrupts [0,0] and [0,2]:
- * flags = (DATA_EVENTFD|ACTION_TRIGGER), index = 0, start = 0, count = 3,
- * data = {fd1, -1, fd2}
- * If index [0,1] is previously set, two count = 1 ioctls calls would be
- * required to set [0,0] and [0,2] without changing [0,1].
- *
- * Once a signaling mechanism is set, DATA_BOOL or DATA_NONE can be used
- * with ACTION_TRIGGER to perform kernel level interrupt loopback testing
- * from userspace (ie. simulate hardware triggering).
- *
- * Setting of an event triggering mechanism to userspace for ACTION_TRIGGER
- * enables the interrupt index for the device. Individual subindex interrupts
- * can be disabled using the -1 value for DATA_EVENTFD or the index can be
- * disabled as a whole with: flags = (DATA_NONE|ACTION_TRIGGER), count = 0.
- *
- * Note that ACTION_[UN]MASK specify user->kernel signaling (irqfds) while
- * ACTION_TRIGGER specifies kernel->user signaling.
- */
-struct vfio_irq_set {
- __u32 argsz;
- __u32 flags;
-#define VFIO_IRQ_SET_DATA_NONE (1 << 0) /* Data not present */
-#define VFIO_IRQ_SET_DATA_BOOL (1 << 1) /* Data is bool (u8) */
-#define VFIO_IRQ_SET_DATA_EVENTFD (1 << 2) /* Data is eventfd (s32) */
-#define VFIO_IRQ_SET_ACTION_MASK (1 << 3) /* Mask interrupt */
-#define VFIO_IRQ_SET_ACTION_UNMASK (1 << 4) /* Unmask interrupt */
-#define VFIO_IRQ_SET_ACTION_TRIGGER (1 << 5) /* Trigger interrupt */
- __u32 index;
- __u32 start;
- __u32 count;
- __u8 data[];
-};
-#define VFIO_DEVICE_SET_IRQS _IO(VFIO_TYPE, VFIO_BASE + 10)
-
-#define VFIO_IRQ_SET_DATA_TYPE_MASK (VFIO_IRQ_SET_DATA_NONE | \
- VFIO_IRQ_SET_DATA_BOOL | \
- VFIO_IRQ_SET_DATA_EVENTFD)
-#define VFIO_IRQ_SET_ACTION_TYPE_MASK (VFIO_IRQ_SET_ACTION_MASK | \
- VFIO_IRQ_SET_ACTION_UNMASK | \
- VFIO_IRQ_SET_ACTION_TRIGGER)
-/**
- * VFIO_DEVICE_RESET - _IO(VFIO_TYPE, VFIO_BASE + 11)
- *
- * Reset a device.
- */
-#define VFIO_DEVICE_RESET _IO(VFIO_TYPE, VFIO_BASE + 11)
-
-/*
- * The VFIO-PCI bus driver makes use of the following fixed region and
- * IRQ index mapping. Unimplemented regions return a size of zero.
- * Unimplemented IRQ types return a count of zero.
- */
-
-enum {
- VFIO_PCI_BAR0_REGION_INDEX,
- VFIO_PCI_BAR1_REGION_INDEX,
- VFIO_PCI_BAR2_REGION_INDEX,
- VFIO_PCI_BAR3_REGION_INDEX,
- VFIO_PCI_BAR4_REGION_INDEX,
- VFIO_PCI_BAR5_REGION_INDEX,
- VFIO_PCI_ROM_REGION_INDEX,
- VFIO_PCI_CONFIG_REGION_INDEX,
- /*
- * Expose VGA regions defined for PCI base class 03, subclass 00.
- * This includes I/O port ranges 0x3b0 to 0x3bb and 0x3c0 to 0x3df
- * as well as the MMIO range 0xa0000 to 0xbffff. Each implemented
- * range is found at it's identity mapped offset from the region
- * offset, for example 0x3b0 is region_info.offset + 0x3b0. Areas
- * between described ranges are unimplemented.
- */
- VFIO_PCI_VGA_REGION_INDEX,
- VFIO_PCI_NUM_REGIONS = 9 /* Fixed user ABI, region indexes >=9 use */
- /* device specific cap to define content. */
-};
-
-enum {
- VFIO_PCI_INTX_IRQ_INDEX,
- VFIO_PCI_MSI_IRQ_INDEX,
- VFIO_PCI_MSIX_IRQ_INDEX,
- VFIO_PCI_ERR_IRQ_INDEX,
- VFIO_PCI_REQ_IRQ_INDEX,
- VFIO_PCI_NUM_IRQS
-};
-
-/**
- * VFIO_DEVICE_GET_PCI_HOT_RESET_INFO - _IORW(VFIO_TYPE, VFIO_BASE + 12,
- * struct vfio_pci_hot_reset_info)
- *
- * Return: 0 on success, -errno on failure:
- * -enospc = insufficient buffer, -enodev = unsupported for device.
- */
-struct vfio_pci_dependent_device {
- __u32 group_id;
- __u16 segment;
- __u8 bus;
- __u8 devfn; /* Use PCI_SLOT/PCI_FUNC */
-};
-
-struct vfio_pci_hot_reset_info {
- __u32 argsz;
- __u32 flags;
- __u32 count;
- struct vfio_pci_dependent_device devices[];
-};
-
-#define VFIO_DEVICE_GET_PCI_HOT_RESET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12)
-
-/**
- * VFIO_DEVICE_PCI_HOT_RESET - _IOW(VFIO_TYPE, VFIO_BASE + 13,
- * struct vfio_pci_hot_reset)
- *
- * Return: 0 on success, -errno on failure.
- */
-struct vfio_pci_hot_reset {
- __u32 argsz;
- __u32 flags;
- __u32 count;
- __s32 group_fds[];
-};
-
-#define VFIO_DEVICE_PCI_HOT_RESET _IO(VFIO_TYPE, VFIO_BASE + 13)
-
-/* -------- API for Type1 VFIO IOMMU -------- */
-
-/**
- * VFIO_IOMMU_GET_INFO - _IOR(VFIO_TYPE, VFIO_BASE + 12, struct vfio_iommu_info)
- *
- * Retrieve information about the IOMMU object. Fills in provided
- * struct vfio_iommu_info. Caller sets argsz.
- *
- * XXX Should we do these by CHECK_EXTENSION too?
- */
-struct vfio_iommu_type1_info {
- __u32 argsz;
- __u32 flags;
-#define VFIO_IOMMU_INFO_PGSIZES (1 << 0) /* supported page sizes info */
- __u64 iova_pgsizes; /* Bitmap of supported page sizes */
-};
-
-#define VFIO_IOMMU_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12)
-
-/**
- * VFIO_IOMMU_MAP_DMA - _IOW(VFIO_TYPE, VFIO_BASE + 13, struct vfio_dma_map)
- *
- * Map process virtual addresses to IO virtual addresses using the
- * provided struct vfio_dma_map. Caller sets argsz. READ &/ WRITE required.
- */
-struct vfio_iommu_type1_dma_map {
- __u32 argsz;
- __u32 flags;
-#define VFIO_DMA_MAP_FLAG_READ (1 << 0) /* readable from device */
-#define VFIO_DMA_MAP_FLAG_WRITE (1 << 1) /* writable from device */
- __u64 vaddr; /* Process virtual address */
- __u64 iova; /* IO virtual address */
- __u64 size; /* Size of mapping (bytes) */
-};
-
-#define VFIO_IOMMU_MAP_DMA _IO(VFIO_TYPE, VFIO_BASE + 13)
-
-/**
- * VFIO_IOMMU_UNMAP_DMA - _IOWR(VFIO_TYPE, VFIO_BASE + 14,
- * struct vfio_dma_unmap)
- *
- * Unmap IO virtual addresses using the provided struct vfio_dma_unmap.
- * Caller sets argsz. The actual unmapped size is returned in the size
- * field. No guarantee is made to the user that arbitrary unmaps of iova
- * or size different from those used in the original mapping call will
- * succeed.
- */
-struct vfio_iommu_type1_dma_unmap {
- __u32 argsz;
- __u32 flags;
- __u64 iova; /* IO virtual address */
- __u64 size; /* Size of mapping (bytes) */
-};
-
-#define VFIO_IOMMU_UNMAP_DMA _IO(VFIO_TYPE, VFIO_BASE + 14)
-
-/*
- * IOCTLs to enable/disable IOMMU container usage.
- * No parameters are supported.
- */
-#define VFIO_IOMMU_ENABLE _IO(VFIO_TYPE, VFIO_BASE + 15)
-#define VFIO_IOMMU_DISABLE _IO(VFIO_TYPE, VFIO_BASE + 16)
-
-/* -------- Additional API for SPAPR TCE (Server POWERPC) IOMMU -------- */
-
-/*
- * The SPAPR TCE DDW info struct provides the information about
- * the details of Dynamic DMA window capability.
- *
- * @pgsizes contains a page size bitmask, 4K/64K/16M are supported.
- * @max_dynamic_windows_supported tells the maximum number of windows
- * which the platform can create.
- * @levels tells the maximum number of levels in multi-level IOMMU tables;
- * this allows splitting a table into smaller chunks which reduces
- * the amount of physically contiguous memory required for the table.
- */
-struct vfio_iommu_spapr_tce_ddw_info {
- __u64 pgsizes; /* Bitmap of supported page sizes */
- __u32 max_dynamic_windows_supported;
- __u32 levels;
-};
-
-/*
- * The SPAPR TCE info struct provides the information about the PCI bus
- * address ranges available for DMA, these values are programmed into
- * the hardware so the guest has to know that information.
- *
- * The DMA 32 bit window start is an absolute PCI bus address.
- * The IOVA address passed via map/unmap ioctls are absolute PCI bus
- * addresses too so the window works as a filter rather than an offset
- * for IOVA addresses.
- *
- * Flags supported:
- * - VFIO_IOMMU_SPAPR_INFO_DDW: informs the userspace that dynamic DMA windows
- * (DDW) support is present. @ddw is only supported when DDW is present.
- */
-struct vfio_iommu_spapr_tce_info {
- __u32 argsz;
- __u32 flags;
-#define VFIO_IOMMU_SPAPR_INFO_DDW (1 << 0) /* DDW supported */
- __u32 dma32_window_start; /* 32 bit window start (bytes) */
- __u32 dma32_window_size; /* 32 bit window size (bytes) */
- struct vfio_iommu_spapr_tce_ddw_info ddw;
-};
-
-#define VFIO_IOMMU_SPAPR_TCE_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12)
-
-/*
- * EEH PE operation struct provides ways to:
- * - enable/disable EEH functionality;
- * - unfreeze IO/DMA for frozen PE;
- * - read PE state;
- * - reset PE;
- * - configure PE;
- * - inject EEH error.
- */
-struct vfio_eeh_pe_err {
- __u32 type;
- __u32 func;
- __u64 addr;
- __u64 mask;
-};
-
-struct vfio_eeh_pe_op {
- __u32 argsz;
- __u32 flags;
- __u32 op;
- union {
- struct vfio_eeh_pe_err err;
- };
-};
-
-#define VFIO_EEH_PE_DISABLE 0 /* Disable EEH functionality */
-#define VFIO_EEH_PE_ENABLE 1 /* Enable EEH functionality */
-#define VFIO_EEH_PE_UNFREEZE_IO 2 /* Enable IO for frozen PE */
-#define VFIO_EEH_PE_UNFREEZE_DMA 3 /* Enable DMA for frozen PE */
-#define VFIO_EEH_PE_GET_STATE 4 /* PE state retrieval */
-#define VFIO_EEH_PE_STATE_NORMAL 0 /* PE in functional state */
-#define VFIO_EEH_PE_STATE_RESET 1 /* PE reset in progress */
-#define VFIO_EEH_PE_STATE_STOPPED 2 /* Stopped DMA and IO */
-#define VFIO_EEH_PE_STATE_STOPPED_DMA 4 /* Stopped DMA only */
-#define VFIO_EEH_PE_STATE_UNAVAIL 5 /* State unavailable */
-#define VFIO_EEH_PE_RESET_DEACTIVATE 5 /* Deassert PE reset */
-#define VFIO_EEH_PE_RESET_HOT 6 /* Assert hot reset */
-#define VFIO_EEH_PE_RESET_FUNDAMENTAL 7 /* Assert fundamental reset */
-#define VFIO_EEH_PE_CONFIGURE 8 /* PE configuration */
-#define VFIO_EEH_PE_INJECT_ERR 9 /* Inject EEH error */
-
-#define VFIO_EEH_PE_OP _IO(VFIO_TYPE, VFIO_BASE + 21)
-
-/**
- * VFIO_IOMMU_SPAPR_REGISTER_MEMORY - _IOW(VFIO_TYPE, VFIO_BASE + 17, struct vfio_iommu_spapr_register_memory)
- *
- * Registers user space memory where DMA is allowed. It pins
- * user pages and does the locked memory accounting so
- * subsequent VFIO_IOMMU_MAP_DMA/VFIO_IOMMU_UNMAP_DMA calls
- * get faster.
- */
-struct vfio_iommu_spapr_register_memory {
- __u32 argsz;
- __u32 flags;
- __u64 vaddr; /* Process virtual address */
- __u64 size; /* Size of mapping (bytes) */
-};
-#define VFIO_IOMMU_SPAPR_REGISTER_MEMORY _IO(VFIO_TYPE, VFIO_BASE + 17)
-
-/**
- * VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY - _IOW(VFIO_TYPE, VFIO_BASE + 18, struct vfio_iommu_spapr_register_memory)
- *
- * Unregisters user space memory registered with
- * VFIO_IOMMU_SPAPR_REGISTER_MEMORY.
- * Uses vfio_iommu_spapr_register_memory for parameters.
- */
-#define VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY _IO(VFIO_TYPE, VFIO_BASE + 18)
-
-/**
- * VFIO_IOMMU_SPAPR_TCE_CREATE - _IOWR(VFIO_TYPE, VFIO_BASE + 19, struct vfio_iommu_spapr_tce_create)
- *
- * Creates an additional TCE table and programs it (sets a new DMA window)
- * to every IOMMU group in the container. It receives page shift, window
- * size and number of levels in the TCE table being created.
- *
- * It allocates and returns an offset on a PCI bus of the new DMA window.
- */
-struct vfio_iommu_spapr_tce_create {
- __u32 argsz;
- __u32 flags;
- /* in */
- __u32 page_shift;
- __u32 __resv1;
- __u64 window_size;
- __u32 levels;
- __u32 __resv2;
- /* out */
- __u64 start_addr;
-};
-#define VFIO_IOMMU_SPAPR_TCE_CREATE _IO(VFIO_TYPE, VFIO_BASE + 19)
-
-/**
- * VFIO_IOMMU_SPAPR_TCE_REMOVE - _IOW(VFIO_TYPE, VFIO_BASE + 20, struct vfio_iommu_spapr_tce_remove)
- *
- * Unprograms a TCE table from all groups in the container and destroys it.
- * It receives a PCI bus offset as a window id.
- */
-struct vfio_iommu_spapr_tce_remove {
- __u32 argsz;
- __u32 flags;
- /* in */
- __u64 start_addr;
-};
-#define VFIO_IOMMU_SPAPR_TCE_REMOVE _IO(VFIO_TYPE, VFIO_BASE + 20)
-
-/* ***************************************************************** */
-
-#endif /* VFIO_H */