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qemu
Linux-headers-update-against-Linux-5.8-r.patch
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File Linux-headers-update-against-Linux-5.8-r.patch of Package qemu
From: Cornelia Huck <cohuck@redhat.com> Date: Tue, 9 Jun 2020 16:26:53 +0200 Subject: Linux headers: update against Linux 5.8-rc1 Git-commit: f76b348ec78fb7316bbcc981127ae8894cfcc609 References: bsc#1179719 Update against Linux 5.8-rc1. Signed-off-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Liang Yan <lyan@suse.com> --- include/standard-headers/asm-x86/kvm_para.h | 17 +- include/standard-headers/drm/drm_fourcc.h | 140 +++++++- include/standard-headers/linux/ethtool.h | 16 +- include/standard-headers/linux/virtio_ids.h | 1 + include/standard-headers/linux/virtio_mem.h | 211 ++++++++++++ include/standard-headers/linux/virtio_ring.h | 48 ++- linux-headers/asm-arm64/mman.h | 8 + linux-headers/asm-generic/unistd.h | 4 +- linux-headers/asm-mips/unistd_n32.h | 1 + linux-headers/asm-mips/unistd_n64.h | 1 + linux-headers/asm-mips/unistd_o32.h | 1 + linux-headers/asm-powerpc/unistd_32.h | 1 + linux-headers/asm-powerpc/unistd_64.h | 1 + linux-headers/asm-s390/unistd_32.h | 1 + linux-headers/asm-s390/unistd_64.h | 1 + linux-headers/asm-x86/kvm.h | 20 +- linux-headers/asm-x86/unistd.h | 11 +- linux-headers/asm-x86/unistd_32.h | 1 + linux-headers/asm-x86/unistd_64.h | 1 + linux-headers/asm-x86/unistd_x32.h | 1 + linux-headers/linux/kvm.h | 18 +- linux-headers/linux/psp-sev.h | 2 + linux-headers/linux/vfio.h | 322 +++++++++++++++++++ linux-headers/linux/vfio_ccw.h | 19 ++ linux-headers/linux/vhost.h | 4 + 25 files changed, 818 insertions(+), 33 deletions(-) diff --git a/include/standard-headers/asm-x86/kvm_para.h b/include/standard-headers/asm-x86/kvm_para.h index 90604a8fb77b43ac0bdf48a9f459..07877d3295f265760c6eddec2b5e 100644 --- a/include/standard-headers/asm-x86/kvm_para.h +++ b/include/standard-headers/asm-x86/kvm_para.h @@ -31,6 +31,7 @@ #define KVM_FEATURE_PV_SEND_IPI 11 #define KVM_FEATURE_POLL_CONTROL 12 #define KVM_FEATURE_PV_SCHED_YIELD 13 +#define KVM_FEATURE_ASYNC_PF_INT 14 #define KVM_HINTS_REALTIME 0 @@ -50,6 +51,8 @@ #define MSR_KVM_STEAL_TIME 0x4b564d03 #define MSR_KVM_PV_EOI_EN 0x4b564d04 #define MSR_KVM_POLL_CONTROL 0x4b564d05 +#define MSR_KVM_ASYNC_PF_INT 0x4b564d06 +#define MSR_KVM_ASYNC_PF_ACK 0x4b564d07 struct kvm_steal_time { uint64_t steal; @@ -81,6 +84,11 @@ struct kvm_clock_pairing { #define KVM_ASYNC_PF_ENABLED (1 << 0) #define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1) #define KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT (1 << 2) +#define KVM_ASYNC_PF_DELIVERY_AS_INT (1 << 3) + +/* MSR_KVM_ASYNC_PF_INT */ +#define KVM_ASYNC_PF_VEC_MASK GENMASK(7, 0) + /* Operations for KVM_HC_MMU_OP */ #define KVM_MMU_OP_WRITE_PTE 1 @@ -112,8 +120,13 @@ struct kvm_mmu_op_release_pt { #define KVM_PV_REASON_PAGE_READY 2 struct kvm_vcpu_pv_apf_data { - uint32_t reason; - uint8_t pad[60]; + /* Used for 'page not present' events delivered via #PF */ + uint32_t flags; + + /* Used for 'page ready' events delivered via interrupt notification */ + uint32_t token; + + uint8_t pad[56]; uint32_t enabled; }; diff --git a/include/standard-headers/drm/drm_fourcc.h b/include/standard-headers/drm/drm_fourcc.h index 66e838074c81c64d1d38f3fb815d..909a66753c03cdfca573f1fae6a2 100644 --- a/include/standard-headers/drm/drm_fourcc.h +++ b/include/standard-headers/drm/drm_fourcc.h @@ -353,9 +353,12 @@ extern "C" { * a platform-dependent stride. On top of that the memory can apply * platform-depending swizzling of some higher address bits into bit6. * - * This format is highly platforms specific and not useful for cross-driver - * sharing. It exists since on a given platform it does uniquely identify the - * layout in a simple way for i915-specific userspace. + * Note that this layout is only accurate on intel gen 8+ or valleyview chipsets. + * On earlier platforms the is highly platforms specific and not useful for + * cross-driver sharing. It exists since on a given platform it does uniquely + * identify the layout in a simple way for i915-specific userspace, which + * facilitated conversion of userspace to modifiers. Additionally the exact + * format on some really old platforms is not known. */ #define I915_FORMAT_MOD_X_TILED fourcc_mod_code(INTEL, 1) @@ -368,9 +371,12 @@ extern "C" { * memory can apply platform-depending swizzling of some higher address bits * into bit6. * - * This format is highly platforms specific and not useful for cross-driver - * sharing. It exists since on a given platform it does uniquely identify the - * layout in a simple way for i915-specific userspace. + * Note that this layout is only accurate on intel gen 8+ or valleyview chipsets. + * On earlier platforms the is highly platforms specific and not useful for + * cross-driver sharing. It exists since on a given platform it does uniquely + * identify the layout in a simple way for i915-specific userspace, which + * facilitated conversion of userspace to modifiers. Additionally the exact + * format on some really old platforms is not known. */ #define I915_FORMAT_MOD_Y_TILED fourcc_mod_code(INTEL, 2) @@ -520,7 +526,113 @@ extern "C" { #define DRM_FORMAT_MOD_NVIDIA_TEGRA_TILED fourcc_mod_code(NVIDIA, 1) /* - * 16Bx2 Block Linear layout, used by desktop GPUs, and Tegra K1 and later + * Generalized Block Linear layout, used by desktop GPUs starting with NV50/G80, + * and Tegra GPUs starting with Tegra K1. + * + * Pixels are arranged in Groups of Bytes (GOBs). GOB size and layout varies + * based on the architecture generation. GOBs themselves are then arranged in + * 3D blocks, with the block dimensions (in terms of GOBs) always being a power + * of two, and hence expressible as their log2 equivalent (E.g., "2" represents + * a block depth or height of "4"). + * + * Chapter 20 "Pixel Memory Formats" of the Tegra X1 TRM describes this format + * in full detail. + * + * Macro + * Bits Param Description + * ---- ----- ----------------------------------------------------------------- + * + * 3:0 h log2(height) of each block, in GOBs. Placed here for + * compatibility with the existing + * DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK()-based modifiers. + * + * 4:4 - Must be 1, to indicate block-linear layout. Necessary for + * compatibility with the existing + * DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK()-based modifiers. + * + * 8:5 - Reserved (To support 3D-surfaces with variable log2(depth) block + * size). Must be zero. + * + * Note there is no log2(width) parameter. Some portions of the + * hardware support a block width of two gobs, but it is impractical + * to use due to lack of support elsewhere, and has no known + * benefits. + * + * 11:9 - Reserved (To support 2D-array textures with variable array stride + * in blocks, specified via log2(tile width in blocks)). Must be + * zero. + * + * 19:12 k Page Kind. This value directly maps to a field in the page + * tables of all GPUs >= NV50. It affects the exact layout of bits + * in memory and can be derived from the tuple + * + * (format, GPU model, compression type, samples per pixel) + * + * Where compression type is defined below. If GPU model were + * implied by the format modifier, format, or memory buffer, page + * kind would not need to be included in the modifier itself, but + * since the modifier should define the layout of the associated + * memory buffer independent from any device or other context, it + * must be included here. + * + * 21:20 g GOB Height and Page Kind Generation. The height of a GOB changed + * starting with Fermi GPUs. Additionally, the mapping between page + * kind and bit layout has changed at various points. + * + * 0 = Gob Height 8, Fermi - Volta, Tegra K1+ Page Kind mapping + * 1 = Gob Height 4, G80 - GT2XX Page Kind mapping + * 2 = Gob Height 8, Turing+ Page Kind mapping + * 3 = Reserved for future use. + * + * 22:22 s Sector layout. On Tegra GPUs prior to Xavier, there is a further + * bit remapping step that occurs at an even lower level than the + * page kind and block linear swizzles. This causes the layout of + * surfaces mapped in those SOC's GPUs to be incompatible with the + * equivalent mapping on other GPUs in the same system. + * + * 0 = Tegra K1 - Tegra Parker/TX2 Layout. + * 1 = Desktop GPU and Tegra Xavier+ Layout + * + * 25:23 c Lossless Framebuffer Compression type. + * + * 0 = none + * 1 = ROP/3D, layout 1, exact compression format implied by Page + * Kind field + * 2 = ROP/3D, layout 2, exact compression format implied by Page + * Kind field + * 3 = CDE horizontal + * 4 = CDE vertical + * 5 = Reserved for future use + * 6 = Reserved for future use + * 7 = Reserved for future use + * + * 55:25 - Reserved for future use. Must be zero. + */ +#define DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D(c, s, g, k, h) \ + fourcc_mod_code(NVIDIA, (0x10 | \ + ((h) & 0xf) | \ + (((k) & 0xff) << 12) | \ + (((g) & 0x3) << 20) | \ + (((s) & 0x1) << 22) | \ + (((c) & 0x7) << 23))) + +/* To grandfather in prior block linear format modifiers to the above layout, + * the page kind "0", which corresponds to "pitch/linear" and hence is unusable + * with block-linear layouts, is remapped within drivers to the value 0xfe, + * which corresponds to the "generic" kind used for simple single-sample + * uncompressed color formats on Fermi - Volta GPUs. + */ +static inline uint64_t +drm_fourcc_canonicalize_nvidia_format_mod(uint64_t modifier) +{ + if (!(modifier & 0x10) || (modifier & (0xff << 12))) + return modifier; + else + return modifier | (0xfe << 12); +} + +/* + * 16Bx2 Block Linear layout, used by Tegra K1 and later * * Pixels are arranged in 64x8 Groups Of Bytes (GOBs). GOBs are then stacked * vertically by a power of 2 (1 to 32 GOBs) to form a block. @@ -541,20 +653,20 @@ extern "C" { * in full detail. */ #define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(v) \ - fourcc_mod_code(NVIDIA, 0x10 | ((v) & 0xf)) + DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D(0, 0, 0, 0, (v)) #define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_ONE_GOB \ - fourcc_mod_code(NVIDIA, 0x10) + DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(0) #define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_TWO_GOB \ - fourcc_mod_code(NVIDIA, 0x11) + DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(1) #define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_FOUR_GOB \ - fourcc_mod_code(NVIDIA, 0x12) + DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(2) #define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_EIGHT_GOB \ - fourcc_mod_code(NVIDIA, 0x13) + DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(3) #define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_SIXTEEN_GOB \ - fourcc_mod_code(NVIDIA, 0x14) + DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(4) #define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_THIRTYTWO_GOB \ - fourcc_mod_code(NVIDIA, 0x15) + DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(5) /* * Some Broadcom modifiers take parameters, for example the number of diff --git a/include/standard-headers/linux/ethtool.h b/include/standard-headers/linux/ethtool.h index 1200890c86088cb3c83368f18827..fd8d2cccfe89cb193d91439a62f5 100644 --- a/include/standard-headers/linux/ethtool.h +++ b/include/standard-headers/linux/ethtool.h @@ -1666,6 +1666,18 @@ static inline int ethtool_validate_duplex(uint8_t duplex) return 0; } +#define MASTER_SLAVE_CFG_UNSUPPORTED 0 +#define MASTER_SLAVE_CFG_UNKNOWN 1 +#define MASTER_SLAVE_CFG_MASTER_PREFERRED 2 +#define MASTER_SLAVE_CFG_SLAVE_PREFERRED 3 +#define MASTER_SLAVE_CFG_MASTER_FORCE 4 +#define MASTER_SLAVE_CFG_SLAVE_FORCE 5 +#define MASTER_SLAVE_STATE_UNSUPPORTED 0 +#define MASTER_SLAVE_STATE_UNKNOWN 1 +#define MASTER_SLAVE_STATE_MASTER 2 +#define MASTER_SLAVE_STATE_SLAVE 3 +#define MASTER_SLAVE_STATE_ERR 4 + /* Which connector port. */ #define PORT_TP 0x00 #define PORT_AUI 0x01 @@ -1904,7 +1916,9 @@ struct ethtool_link_settings { uint8_t eth_tp_mdix_ctrl; int8_t link_mode_masks_nwords; uint8_t transceiver; - uint8_t reserved1[3]; + uint8_t master_slave_cfg; + uint8_t master_slave_state; + uint8_t reserved1[1]; uint32_t reserved[7]; uint32_t link_mode_masks[0]; /* layout of link_mode_masks fields: diff --git a/include/standard-headers/linux/virtio_ids.h b/include/standard-headers/linux/virtio_ids.h index ecc27a17401a76b8ae8a907859d1..b052355ac7a324e173f4ea44c48d 100644 --- a/include/standard-headers/linux/virtio_ids.h +++ b/include/standard-headers/linux/virtio_ids.h @@ -44,6 +44,7 @@ #define VIRTIO_ID_VSOCK 19 /* virtio vsock transport */ #define VIRTIO_ID_CRYPTO 20 /* virtio crypto */ #define VIRTIO_ID_IOMMU 23 /* virtio IOMMU */ +#define VIRTIO_ID_MEM 24 /* virtio mem */ #define VIRTIO_ID_FS 26 /* virtio filesystem */ #define VIRTIO_ID_PMEM 27 /* virtio pmem */ #define VIRTIO_ID_MAC80211_HWSIM 29 /* virtio mac80211-hwsim */ diff --git a/include/standard-headers/linux/virtio_mem.h b/include/standard-headers/linux/virtio_mem.h new file mode 100644 index 0000000000000000000000000000000000000000..05e5ade75d3d8d2533c63d4fb4fe1c9026d86751 --- /dev/null +++ b/include/standard-headers/linux/virtio_mem.h @@ -0,0 +1,211 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ +/* + * Virtio Mem Device + * + * Copyright Red Hat, Inc. 2020 + * + * Authors: + * David Hildenbrand <david@redhat.com> + * + * This header is BSD licensed so anyone can use the definitions + * to implement compatible drivers/servers: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of IBM nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _LINUX_VIRTIO_MEM_H +#define _LINUX_VIRTIO_MEM_H + +#include "standard-headers/linux/types.h" +#include "standard-headers/linux/virtio_types.h" +#include "standard-headers/linux/virtio_ids.h" +#include "standard-headers/linux/virtio_config.h" + +/* + * Each virtio-mem device manages a dedicated region in physical address + * space. Each device can belong to a single NUMA node, multiple devices + * for a single NUMA node are possible. A virtio-mem device is like a + * "resizable DIMM" consisting of small memory blocks that can be plugged + * or unplugged. The device driver is responsible for (un)plugging memory + * blocks on demand. + * + * Virtio-mem devices can only operate on their assigned memory region in + * order to (un)plug memory. A device cannot (un)plug memory belonging to + * other devices. + * + * The "region_size" corresponds to the maximum amount of memory that can + * be provided by a device. The "size" corresponds to the amount of memory + * that is currently plugged. "requested_size" corresponds to a request + * from the device to the device driver to (un)plug blocks. The + * device driver should try to (un)plug blocks in order to reach the + * "requested_size". It is impossible to plug more memory than requested. + * + * The "usable_region_size" represents the memory region that can actually + * be used to (un)plug memory. It is always at least as big as the + * "requested_size" and will grow dynamically. It will only shrink when + * explicitly triggered (VIRTIO_MEM_REQ_UNPLUG). + * + * There are no guarantees what will happen if unplugged memory is + * read/written. Such memory should, in general, not be touched. E.g., + * even writing might succeed, but the values will simply be discarded at + * random points in time. + * + * It can happen that the device cannot process a request, because it is + * busy. The device driver has to retry later. + * + * Usually, during system resets all memory will get unplugged, so the + * device driver can start with a clean state. However, in specific + * scenarios (if the device is busy) it can happen that the device still + * has memory plugged. The device driver can request to unplug all memory + * (VIRTIO_MEM_REQ_UNPLUG) - which might take a while to succeed if the + * device is busy. + */ + +/* --- virtio-mem: feature bits --- */ + +/* node_id is an ACPI PXM and is valid */ +#define VIRTIO_MEM_F_ACPI_PXM 0 + + +/* --- virtio-mem: guest -> host requests --- */ + +/* request to plug memory blocks */ +#define VIRTIO_MEM_REQ_PLUG 0 +/* request to unplug memory blocks */ +#define VIRTIO_MEM_REQ_UNPLUG 1 +/* request to unplug all blocks and shrink the usable size */ +#define VIRTIO_MEM_REQ_UNPLUG_ALL 2 +/* request information about the plugged state of memory blocks */ +#define VIRTIO_MEM_REQ_STATE 3 + +struct virtio_mem_req_plug { + __virtio64 addr; + __virtio16 nb_blocks; + __virtio16 padding[3]; +}; + +struct virtio_mem_req_unplug { + __virtio64 addr; + __virtio16 nb_blocks; + __virtio16 padding[3]; +}; + +struct virtio_mem_req_state { + __virtio64 addr; + __virtio16 nb_blocks; + __virtio16 padding[3]; +}; + +struct virtio_mem_req { + __virtio16 type; + __virtio16 padding[3]; + + union { + struct virtio_mem_req_plug plug; + struct virtio_mem_req_unplug unplug; + struct virtio_mem_req_state state; + } u; +}; + + +/* --- virtio-mem: host -> guest response --- */ + +/* + * Request processed successfully, applicable for + * - VIRTIO_MEM_REQ_PLUG + * - VIRTIO_MEM_REQ_UNPLUG + * - VIRTIO_MEM_REQ_UNPLUG_ALL + * - VIRTIO_MEM_REQ_STATE + */ +#define VIRTIO_MEM_RESP_ACK 0 +/* + * Request denied - e.g. trying to plug more than requested, applicable for + * - VIRTIO_MEM_REQ_PLUG + */ +#define VIRTIO_MEM_RESP_NACK 1 +/* + * Request cannot be processed right now, try again later, applicable for + * - VIRTIO_MEM_REQ_PLUG + * - VIRTIO_MEM_REQ_UNPLUG + * - VIRTIO_MEM_REQ_UNPLUG_ALL + */ +#define VIRTIO_MEM_RESP_BUSY 2 +/* + * Error in request (e.g. addresses/alignment), applicable for + * - VIRTIO_MEM_REQ_PLUG + * - VIRTIO_MEM_REQ_UNPLUG + * - VIRTIO_MEM_REQ_STATE + */ +#define VIRTIO_MEM_RESP_ERROR 3 + + +/* State of memory blocks is "plugged" */ +#define VIRTIO_MEM_STATE_PLUGGED 0 +/* State of memory blocks is "unplugged" */ +#define VIRTIO_MEM_STATE_UNPLUGGED 1 +/* State of memory blocks is "mixed" */ +#define VIRTIO_MEM_STATE_MIXED 2 + +struct virtio_mem_resp_state { + __virtio16 state; +}; + +struct virtio_mem_resp { + __virtio16 type; + __virtio16 padding[3]; + + union { + struct virtio_mem_resp_state state; + } u; +}; + +/* --- virtio-mem: configuration --- */ + +struct virtio_mem_config { + /* Block size and alignment. Cannot change. */ + uint64_t block_size; + /* Valid with VIRTIO_MEM_F_ACPI_PXM. Cannot change. */ + uint16_t node_id; + uint8_t padding[6]; + /* Start address of the memory region. Cannot change. */ + uint64_t addr; + /* Region size (maximum). Cannot change. */ + uint64_t region_size; + /* + * Currently usable region size. Can grow up to region_size. Can + * shrink due to VIRTIO_MEM_REQ_UNPLUG_ALL (in which case no config + * update will be sent). + */ + uint64_t usable_region_size; + /* + * Currently used size. Changes due to plug/unplug requests, but no + * config updates will be sent. + */ + uint64_t plugged_size; + /* Requested size. New plug requests cannot exceed it. Can change. */ + uint64_t requested_size; +}; + +#endif /* _LINUX_VIRTIO_MEM_H */ diff --git a/include/standard-headers/linux/virtio_ring.h b/include/standard-headers/linux/virtio_ring.h index f230fed479601c06c40b1a82aae1..0fa0e1067ffe56c40a4034ed0368 100644 --- a/include/standard-headers/linux/virtio_ring.h +++ b/include/standard-headers/linux/virtio_ring.h @@ -84,6 +84,13 @@ * at the end of the used ring. Guest should ignore the used->flags field. */ #define VIRTIO_RING_F_EVENT_IDX 29 +/* Alignment requirements for vring elements. + * When using pre-virtio 1.0 layout, these fall out naturally. + */ +#define VRING_AVAIL_ALIGN_SIZE 2 +#define VRING_USED_ALIGN_SIZE 4 +#define VRING_DESC_ALIGN_SIZE 16 + /* Virtio ring descriptors: 16 bytes. These can chain together via "next". */ struct vring_desc { /* Address (guest-physical). */ @@ -110,28 +117,47 @@ struct vring_used_elem { __virtio32 len; }; +typedef struct vring_used_elem __attribute__((aligned(VRING_USED_ALIGN_SIZE))) + vring_used_elem_t; + struct vring_used { __virtio16 flags; __virtio16 idx; - struct vring_used_elem ring[]; + vring_used_elem_t ring[]; }; +/* + * The ring element addresses are passed between components with different + * alignments assumptions. Thus, we might need to decrease the compiler-selected + * alignment, and so must use a typedef to make sure the aligned attribute + * actually takes hold: + * + * https://gcc.gnu.org/onlinedocs//gcc/Common-Type-Attributes.html#Common-Type-Attributes + * + * When used on a struct, or struct member, the aligned attribute can only + * increase the alignment; in order to decrease it, the packed attribute must + * be specified as well. When used as part of a typedef, the aligned attribute + * can both increase and decrease alignment, and specifying the packed + * attribute generates a warning. + */ +typedef struct vring_desc __attribute__((aligned(VRING_DESC_ALIGN_SIZE))) + vring_desc_t; +typedef struct vring_avail __attribute__((aligned(VRING_AVAIL_ALIGN_SIZE))) + vring_avail_t; +typedef struct vring_used __attribute__((aligned(VRING_USED_ALIGN_SIZE))) + vring_used_t; + struct vring { unsigned int num; - struct vring_desc *desc; + vring_desc_t *desc; - struct vring_avail *avail; + vring_avail_t *avail; - struct vring_used *used; + vring_used_t *used; }; -/* Alignment requirements for vring elements. - * When using pre-virtio 1.0 layout, these fall out naturally. - */ -#define VRING_AVAIL_ALIGN_SIZE 2 -#define VRING_USED_ALIGN_SIZE 4 -#define VRING_DESC_ALIGN_SIZE 16 +#ifndef VIRTIO_RING_NO_LEGACY /* The standard layout for the ring is a continuous chunk of memory which looks * like this. We assume num is a power of 2. @@ -179,6 +205,8 @@ static inline unsigned vring_size(unsigned int num, unsigned long align) + sizeof(__virtio16) * 3 + sizeof(struct vring_used_elem) * num; } +#endif /* VIRTIO_RING_NO_LEGACY */ + /* The following is used with USED_EVENT_IDX and AVAIL_EVENT_IDX */ /* Assuming a given event_idx value from the other side, if * we have just incremented index from old to new_idx, diff --git a/linux-headers/asm-arm64/mman.h b/linux-headers/asm-arm64/mman.h index 8eebf89f5ab17884a98543f3b37a..e94b9af859842a952268c34cfd92 100644 --- a/linux-headers/asm-arm64/mman.h +++ b/linux-headers/asm-arm64/mman.h @@ -1 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef __ASM_MMAN_H +#define __ASM_MMAN_H + #include <asm-generic/mman.h> + +#define PROT_BTI 0x10 /* BTI guarded page */ + +#endif /* ! _UAPI__ASM_MMAN_H */ diff --git a/linux-headers/asm-generic/unistd.h b/linux-headers/asm-generic/unistd.h index 3a3201e4618ef8c7445895b26f6e..f4a01305d9a65c14fe46652970ec 100644 --- a/linux-headers/asm-generic/unistd.h +++ b/linux-headers/asm-generic/unistd.h @@ -855,9 +855,11 @@ __SYSCALL(__NR_clone3, sys_clone3) __SYSCALL(__NR_openat2, sys_openat2) #define __NR_pidfd_getfd 438 __SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd) +#define __NR_faccessat2 439 +__SYSCALL(__NR_faccessat2, sys_faccessat2) #undef __NR_syscalls -#define __NR_syscalls 439 +#define __NR_syscalls 440 /* * 32 bit systems traditionally used different diff --git a/linux-headers/asm-mips/unistd_n32.h b/linux-headers/asm-mips/unistd_n32.h index aec9f6081af7974a2f8fc075a70f..3b9eda7e7d8f7c7a2961192371f9 100644 --- a/linux-headers/asm-mips/unistd_n32.h +++ b/linux-headers/asm-mips/unistd_n32.h @@ -367,6 +367,7 @@ #define __NR_clone3 (__NR_Linux + 435) #define __NR_openat2 (__NR_Linux + 437) #define __NR_pidfd_getfd (__NR_Linux + 438) +#define __NR_faccessat2 (__NR_Linux + 439) #endif /* _ASM_MIPS_UNISTD_N32_H */ diff --git a/linux-headers/asm-mips/unistd_n64.h b/linux-headers/asm-mips/unistd_n64.h index 1c75d83df53f90aa386b8b919a3d..9cdf9b6c60dfde0e7f8c6f09bb48 100644 --- a/linux-headers/asm-mips/unistd_n64.h +++ b/linux-headers/asm-mips/unistd_n64.h @@ -343,6 +343,7 @@ #define __NR_clone3 (__NR_Linux + 435) #define __NR_openat2 (__NR_Linux + 437) #define __NR_pidfd_getfd (__NR_Linux + 438) +#define __NR_faccessat2 (__NR_Linux + 439) #endif /* _ASM_MIPS_UNISTD_N64_H */ diff --git a/linux-headers/asm-mips/unistd_o32.h b/linux-headers/asm-mips/unistd_o32.h index 660716e240ec10f7ccf3e65239dd..e3e5e238f026edbecf3835d1d887 100644 --- a/linux-headers/asm-mips/unistd_o32.h +++ b/linux-headers/asm-mips/unistd_o32.h @@ -413,6 +413,7 @@ #define __NR_clone3 (__NR_Linux + 435) #define __NR_openat2 (__NR_Linux + 437) #define __NR_pidfd_getfd (__NR_Linux + 438) +#define __NR_faccessat2 (__NR_Linux + 439) #endif /* _ASM_MIPS_UNISTD_O32_H */ diff --git a/linux-headers/asm-powerpc/unistd_32.h b/linux-headers/asm-powerpc/unistd_32.h index 4ba8e32f734445f6107d45044d08..862edb7448c5160b0ded92f32ede 100644 --- a/linux-headers/asm-powerpc/unistd_32.h +++ b/linux-headers/asm-powerpc/unistd_32.h @@ -420,6 +420,7 @@ #define __NR_clone3 435 #define __NR_openat2 437 #define __NR_pidfd_getfd 438 +#define __NR_faccessat2 439 #endif /* _ASM_POWERPC_UNISTD_32_H */ diff --git a/linux-headers/asm-powerpc/unistd_64.h b/linux-headers/asm-powerpc/unistd_64.h index ac20bb4f95b207d4875613b54c45..f553224ce408b2a721321d1b30b5 100644 --- a/linux-headers/asm-powerpc/unistd_64.h +++ b/linux-headers/asm-powerpc/unistd_64.h @@ -392,6 +392,7 @@ #define __NR_clone3 435 #define __NR_openat2 437 #define __NR_pidfd_getfd 438 +#define __NR_faccessat2 439 #endif /* _ASM_POWERPC_UNISTD_64_H */ diff --git a/linux-headers/asm-s390/unistd_32.h b/linux-headers/asm-s390/unistd_32.h index e4a6b654f10e1169e4fd62838282..e08233c0c37719a8a77caacf2f93 100644 --- a/linux-headers/asm-s390/unistd_32.h +++ b/linux-headers/asm-s390/unistd_32.h @@ -410,5 +410,6 @@ #define __NR_clone3 435 #define __NR_openat2 437 #define __NR_pidfd_getfd 438 +#define __NR_faccessat2 439 #endif /* _ASM_S390_UNISTD_32_H */ diff --git a/linux-headers/asm-s390/unistd_64.h b/linux-headers/asm-s390/unistd_64.h index 472f732956e4d1047d95dd68c5de..560e19ae2bb4dc9dd734823016b1 100644 --- a/linux-headers/asm-s390/unistd_64.h +++ b/linux-headers/asm-s390/unistd_64.h @@ -358,5 +358,6 @@ #define __NR_clone3 435 #define __NR_openat2 437 #define __NR_pidfd_getfd 438 +#define __NR_faccessat2 439 #endif /* _ASM_S390_UNISTD_64_H */ diff --git a/linux-headers/asm-x86/kvm.h b/linux-headers/asm-x86/kvm.h index 3f3f780c8c6500e1a1ea52bc0585..17c5a038f42d3978d1b06d7cec5f 100644 --- a/linux-headers/asm-x86/kvm.h +++ b/linux-headers/asm-x86/kvm.h @@ -385,32 +385,48 @@ struct kvm_sync_regs { #define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT (1 << 4) #define KVM_STATE_NESTED_FORMAT_VMX 0 -#define KVM_STATE_NESTED_FORMAT_SVM 1 /* unused */ +#define KVM_STATE_NESTED_FORMAT_SVM 1 #define KVM_STATE_NESTED_GUEST_MODE 0x00000001 #define KVM_STATE_NESTED_RUN_PENDING 0x00000002 #define KVM_STATE_NESTED_EVMCS 0x00000004 #define KVM_STATE_NESTED_MTF_PENDING 0x00000008 +#define KVM_STATE_NESTED_GIF_SET 0x00000100 #define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001 #define KVM_STATE_NESTED_SMM_VMXON 0x00000002 #define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000 +#define KVM_STATE_NESTED_SVM_VMCB_SIZE 0x1000 + +#define KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE 0x00000001 + struct kvm_vmx_nested_state_data { __u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE]; __u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE]; }; struct kvm_vmx_nested_state_hdr { + __u32 flags; __u64 vmxon_pa; __u64 vmcs12_pa; + __u64 preemption_timer_deadline; struct { __u16 flags; } smm; }; +struct kvm_svm_nested_state_data { + /* Save area only used if KVM_STATE_NESTED_RUN_PENDING. */ + __u8 vmcb12[KVM_STATE_NESTED_SVM_VMCB_SIZE]; +}; + +struct kvm_svm_nested_state_hdr { + __u64 vmcb_pa; +}; + /* for KVM_CAP_NESTED_STATE */ struct kvm_nested_state { __u16 flags; @@ -419,6 +435,7 @@ struct kvm_nested_state { union { struct kvm_vmx_nested_state_hdr vmx; + struct kvm_svm_nested_state_hdr svm; /* Pad the header to 128 bytes. */ __u8 pad[120]; @@ -431,6 +448,7 @@ struct kvm_nested_state { */ union { struct kvm_vmx_nested_state_data vmx[0]; + struct kvm_svm_nested_state_data svm[0]; } data; }; diff --git a/linux-headers/asm-x86/unistd.h b/linux-headers/asm-x86/unistd.h index 498d1515c616b2b41675b79270dc..d2af42d61ded12e1f13748be46fa 100644 --- a/linux-headers/asm-x86/unistd.h +++ b/linux-headers/asm-x86/unistd.h @@ -2,8 +2,15 @@ #ifndef _ASM_X86_UNISTD_H #define _ASM_X86_UNISTD_H -/* x32 syscall flag bit */ -#define __X32_SYSCALL_BIT 0x40000000UL +/* + * x32 syscall flag bit. Some user programs expect syscall NR macros + * and __X32_SYSCALL_BIT to have type int, even though syscall numbers + * are, for practical purposes, unsigned long. + * + * Fortunately, expressions like (nr & ~__X32_SYSCALL_BIT) do the right + * thing regardless. + */ +#define __X32_SYSCALL_BIT 0x40000000 # ifdef __i386__ # include <asm/unistd_32.h> diff --git a/linux-headers/asm-x86/unistd_32.h b/linux-headers/asm-x86/unistd_32.h index 1e6c1a586776181a3caba2bbba1f..c727981d4a3aa8a3578ab777d0cc 100644 --- a/linux-headers/asm-x86/unistd_32.h +++ b/linux-headers/asm-x86/unistd_32.h @@ -428,6 +428,7 @@ #define __NR_clone3 435 #define __NR_openat2 437 #define __NR_pidfd_getfd 438 +#define __NR_faccessat2 439 #endif /* _ASM_X86_UNISTD_32_H */ diff --git a/linux-headers/asm-x86/unistd_64.h b/linux-headers/asm-x86/unistd_64.h index 6daf0aecb2984b846595f8f3ea6e..843fa6274584c57a8825c1d39f85 100644 --- a/linux-headers/asm-x86/unistd_64.h +++ b/linux-headers/asm-x86/unistd_64.h @@ -350,6 +350,7 @@ #define __NR_clone3 435 #define __NR_openat2 437 #define __NR_pidfd_getfd 438 +#define __NR_faccessat2 439 #endif /* _ASM_X86_UNISTD_64_H */ diff --git a/linux-headers/asm-x86/unistd_x32.h b/linux-headers/asm-x86/unistd_x32.h index e3f17ef370fcfd16d26ea2709d16..7d63d703cab4227d9e631006852f 100644 --- a/linux-headers/asm-x86/unistd_x32.h +++ b/linux-headers/asm-x86/unistd_x32.h @@ -303,6 +303,7 @@ #define __NR_clone3 (__X32_SYSCALL_BIT + 435) #define __NR_openat2 (__X32_SYSCALL_BIT + 437) #define __NR_pidfd_getfd (__X32_SYSCALL_BIT + 438) +#define __NR_faccessat2 (__X32_SYSCALL_BIT + 439) #define __NR_rt_sigaction (__X32_SYSCALL_BIT + 512) #define __NR_rt_sigreturn (__X32_SYSCALL_BIT + 513) #define __NR_ioctl (__X32_SYSCALL_BIT + 514) diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h index a56559baa0bbe2823d1d96d652dc..71f531771dd862c7f3cbd07ba376 100644 --- a/linux-headers/linux/kvm.h +++ b/linux-headers/linux/kvm.h @@ -116,7 +116,7 @@ struct kvm_irq_level { * ACPI gsi notion of irq. * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47.. * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23.. - * For ARM: See Documentation/virt/kvm/api.txt + * For ARM: See Documentation/virt/kvm/api.rst */ union { __u32 irq; @@ -188,10 +188,13 @@ struct kvm_s390_cmma_log { struct kvm_hyperv_exit { #define KVM_EXIT_HYPERV_SYNIC 1 #define KVM_EXIT_HYPERV_HCALL 2 +#define KVM_EXIT_HYPERV_SYNDBG 3 __u32 type; + __u32 pad1; union { struct { __u32 msr; + __u32 pad2; __u64 control; __u64 evt_page; __u64 msg_page; @@ -201,6 +204,15 @@ struct kvm_hyperv_exit { __u64 result; __u64 params[2]; } hcall; + struct { + __u32 msr; + __u32 pad2; + __u64 control; + __u64 status; + __u64 send_page; + __u64 recv_page; + __u64 pending_page; + } syndbg; } u; }; @@ -1011,6 +1023,8 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_ARM_INJECT_EXT_DABT 178 #define KVM_CAP_S390_PROTECTED 180 #define KVM_CAP_PPC_SECURE_GUEST 181 +#define KVM_CAP_HALT_POLL 182 +#define KVM_CAP_ASYNC_PF_INT 183 #ifdef KVM_CAP_IRQ_ROUTING @@ -1101,7 +1115,7 @@ struct kvm_xen_hvm_config { * * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies * the irqfd to operate in resampling mode for level triggered interrupt - * emulation. See Documentation/virt/kvm/api.txt. + * emulation. See Documentation/virt/kvm/api.rst. */ #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1) diff --git a/linux-headers/linux/psp-sev.h b/linux-headers/linux/psp-sev.h index 31f971e89659b667eccc0d089599..51d8b3940e1448d1a3e2488279b1 100644 --- a/linux-headers/linux/psp-sev.h +++ b/linux-headers/linux/psp-sev.h @@ -83,6 +83,8 @@ struct sev_user_data_status { __u32 guest_count; /* Out */ } __attribute__((packed)); +#define SEV_STATUS_FLAGS_CONFIG_ES 0x0100 + /** * struct sev_user_data_pek_csr - PEK_CSR command parameters * diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h index a41c45286511f083878c06b60d71..f09df262c4b52dfcef1d66ee0bdc 100644 --- a/linux-headers/linux/vfio.h +++ b/linux-headers/linux/vfio.h @@ -305,6 +305,7 @@ struct vfio_region_info_cap_type { #define VFIO_REGION_TYPE_PCI_VENDOR_MASK (0xffff) #define VFIO_REGION_TYPE_GFX (1) #define VFIO_REGION_TYPE_CCW (2) +#define VFIO_REGION_TYPE_MIGRATION (3) /* sub-types for VFIO_REGION_TYPE_PCI_* */ @@ -378,6 +379,235 @@ struct vfio_region_gfx_edid { /* sub-types for VFIO_REGION_TYPE_CCW */ #define VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD (1) +#define VFIO_REGION_SUBTYPE_CCW_SCHIB (2) +#define VFIO_REGION_SUBTYPE_CCW_CRW (3) + +/* sub-types for VFIO_REGION_TYPE_MIGRATION */ +#define VFIO_REGION_SUBTYPE_MIGRATION (1) + +/* + * The structure vfio_device_migration_info is placed at the 0th offset of + * the VFIO_REGION_SUBTYPE_MIGRATION region to get and set VFIO device related + * migration information. Field accesses from this structure are only supported + * at their native width and alignment. Otherwise, the result is undefined and + * vendor drivers should return an error. + * + * device_state: (read/write) + * - The user application writes to this field to inform the vendor driver + * about the device state to be transitioned to. + * - The vendor driver should take the necessary actions to change the + * device state. After successful transition to a given state, the + * vendor driver should return success on write(device_state, state) + * system call. If the device state transition fails, the vendor driver + * should return an appropriate -errno for the fault condition. + * - On the user application side, if the device state transition fails, + * that is, if write(device_state, state) returns an error, read + * device_state again to determine the current state of the device from + * the vendor driver. + * - The vendor driver should return previous state of the device unless + * the vendor driver has encountered an internal error, in which case + * the vendor driver may report the device_state VFIO_DEVICE_STATE_ERROR. + * - The user application must use the device reset ioctl to recover the + * device from VFIO_DEVICE_STATE_ERROR state. If the device is + * indicated to be in a valid device state by reading device_state, the + * user application may attempt to transition the device to any valid + * state reachable from the current state or terminate itself. + * + * device_state consists of 3 bits: + * - If bit 0 is set, it indicates the _RUNNING state. If bit 0 is clear, + * it indicates the _STOP state. When the device state is changed to + * _STOP, driver should stop the device before write() returns. + * - If bit 1 is set, it indicates the _SAVING state, which means that the + * driver should start gathering device state information that will be + * provided to the VFIO user application to save the device's state. + * - If bit 2 is set, it indicates the _RESUMING state, which means that + * the driver should prepare to resume the device. Data provided through + * the migration region should be used to resume the device. + * Bits 3 - 31 are reserved for future use. To preserve them, the user + * application should perform a read-modify-write operation on this + * field when modifying the specified bits. + * + * +------- _RESUMING + * |+------ _SAVING + * ||+----- _RUNNING + * ||| + * 000b => Device Stopped, not saving or resuming + * 001b => Device running, which is the default state + * 010b => Stop the device & save the device state, stop-and-copy state + * 011b => Device running and save the device state, pre-copy state + * 100b => Device stopped and the device state is resuming + * 101b => Invalid state + * 110b => Error state + * 111b => Invalid state + * + * State transitions: + * + * _RESUMING _RUNNING Pre-copy Stop-and-copy _STOP + * (100b) (001b) (011b) (010b) (000b) + * 0. Running or default state + * | + * + * 1. Normal Shutdown (optional) + * |------------------------------------->| + * + * 2. Save the state or suspend + * |------------------------->|---------->| + * + * 3. Save the state during live migration + * |----------->|------------>|---------->| + * + * 4. Resuming + * |<---------| + * + * 5. Resumed + * |--------->| + * + * 0. Default state of VFIO device is _RUNNNG when the user application starts. + * 1. During normal shutdown of the user application, the user application may + * optionally change the VFIO device state from _RUNNING to _STOP. This + * transition is optional. The vendor driver must support this transition but + * must not require it. + * 2. When the user application saves state or suspends the application, the + * device state transitions from _RUNNING to stop-and-copy and then to _STOP. + * On state transition from _RUNNING to stop-and-copy, driver must stop the + * device, save the device state and send it to the application through the + * migration region. The sequence to be followed for such transition is given + * below. + * 3. In live migration of user application, the state transitions from _RUNNING + * to pre-copy, to stop-and-copy, and to _STOP. + * On state transition from _RUNNING to pre-copy, the driver should start + * gathering the device state while the application is still running and send + * the device state data to application through the migration region. + * On state transition from pre-copy to stop-and-copy, the driver must stop + * the device, save the device state and send it to the user application + * through the migration region. + * Vendor drivers must support the pre-copy state even for implementations + * where no data is provided to the user before the stop-and-copy state. The + * user must not be required to consume all migration data before the device + * transitions to a new state, including the stop-and-copy state. + * The sequence to be followed for above two transitions is given below. + * 4. To start the resuming phase, the device state should be transitioned from + * the _RUNNING to the _RESUMING state. + * In the _RESUMING state, the driver should use the device state data + * received through the migration region to resume the device. + * 5. After providing saved device data to the driver, the application should + * change the state from _RESUMING to _RUNNING. + * + * reserved: + * Reads on this field return zero and writes are ignored. + * + * pending_bytes: (read only) + * The number of pending bytes still to be migrated from the vendor driver. + * + * data_offset: (read only) + * The user application should read data_offset field from the migration + * region. The user application should read the device data from this + * offset within the migration region during the _SAVING state or write + * the device data during the _RESUMING state. See below for details of + * sequence to be followed. + * + * data_size: (read/write) + * The user application should read data_size to get the size in bytes of + * the data copied in the migration region during the _SAVING state and + * write the size in bytes of the data copied in the migration region + * during the _RESUMING state. + * + * The format of the migration region is as follows: + * ------------------------------------------------------------------ + * |vfio_device_migration_info| data section | + * | | /////////////////////////////// | + * ------------------------------------------------------------------ + * ^ ^ + * offset 0-trapped part data_offset + * + * The structure vfio_device_migration_info is always followed by the data + * section in the region, so data_offset will always be nonzero. The offset + * from where the data is copied is decided by the kernel driver. The data + * section can be trapped, mmapped, or partitioned, depending on how the kernel + * driver defines the data section. The data section partition can be defined + * as mapped by the sparse mmap capability. If mmapped, data_offset must be + * page aligned, whereas initial section which contains the + * vfio_device_migration_info structure, might not end at the offset, which is + * page aligned. The user is not required to access through mmap regardless + * of the capabilities of the region mmap. + * The vendor driver should determine whether and how to partition the data + * section. The vendor driver should return data_offset accordingly. + * + * The sequence to be followed while in pre-copy state and stop-and-copy state + * is as follows: + * a. Read pending_bytes, indicating the start of a new iteration to get device + * data. Repeated read on pending_bytes at this stage should have no side + * effects. + * If pending_bytes == 0, the user application should not iterate to get data + * for that device. + * If pending_bytes > 0, perform the following steps. + * b. Read data_offset, indicating that the vendor driver should make data + * available through the data section. The vendor driver should return this + * read operation only after data is available from (region + data_offset) + * to (region + data_offset + data_size). + * c. Read data_size, which is the amount of data in bytes available through + * the migration region. + * Read on data_offset and data_size should return the offset and size of + * the current buffer if the user application reads data_offset and + * data_size more than once here. + * d. Read data_size bytes of data from (region + data_offset) from the + * migration region. + * e. Process the data. + * f. Read pending_bytes, which indicates that the data from the previous + * iteration has been read. If pending_bytes > 0, go to step b. + * + * The user application can transition from the _SAVING|_RUNNING + * (pre-copy state) to the _SAVING (stop-and-copy) state regardless of the + * number of pending bytes. The user application should iterate in _SAVING + * (stop-and-copy) until pending_bytes is 0. + * + * The sequence to be followed while _RESUMING device state is as follows: + * While data for this device is available, repeat the following steps: + * a. Read data_offset from where the user application should write data. + * b. Write migration data starting at the migration region + data_offset for + * the length determined by data_size from the migration source. + * c. Write data_size, which indicates to the vendor driver that data is + * written in the migration region. Vendor driver must return this write + * operations on consuming data. Vendor driver should apply the + * user-provided migration region data to the device resume state. + * + * If an error occurs during the above sequences, the vendor driver can return + * an error code for next read() or write() operation, which will terminate the + * loop. The user application should then take the next necessary action, for + * example, failing migration or terminating the user application. + * + * For the user application, data is opaque. The user application should write + * data in the same order as the data is received and the data should be of + * same transaction size at the source. + */ + +struct vfio_device_migration_info { + __u32 device_state; /* VFIO device state */ +#define VFIO_DEVICE_STATE_STOP (0) +#define VFIO_DEVICE_STATE_RUNNING (1 << 0) +#define VFIO_DEVICE_STATE_SAVING (1 << 1) +#define VFIO_DEVICE_STATE_RESUMING (1 << 2) +#define VFIO_DEVICE_STATE_MASK (VFIO_DEVICE_STATE_RUNNING | \ + VFIO_DEVICE_STATE_SAVING | \ + VFIO_DEVICE_STATE_RESUMING) + +#define VFIO_DEVICE_STATE_VALID(state) \ + (state & VFIO_DEVICE_STATE_RESUMING ? \ + (state & VFIO_DEVICE_STATE_MASK) == VFIO_DEVICE_STATE_RESUMING : 1) + +#define VFIO_DEVICE_STATE_IS_ERROR(state) \ + ((state & VFIO_DEVICE_STATE_MASK) == (VFIO_DEVICE_STATE_SAVING | \ + VFIO_DEVICE_STATE_RESUMING)) + +#define VFIO_DEVICE_STATE_SET_ERROR(state) \ + ((state & ~VFIO_DEVICE_STATE_MASK) | VFIO_DEVICE_SATE_SAVING | \ + VFIO_DEVICE_STATE_RESUMING) + + __u32 reserved; + __u64 pending_bytes; + __u64 data_offset; + __u64 data_size; +}; /* * The MSIX mappable capability informs that MSIX data of a BAR can be mmapped @@ -577,6 +807,7 @@ enum { enum { VFIO_CCW_IO_IRQ_INDEX, + VFIO_CCW_CRW_IRQ_INDEX, VFIO_CCW_NUM_IRQS }; @@ -785,6 +1016,29 @@ struct vfio_iommu_type1_info_cap_iova_range { struct vfio_iova_range iova_ranges[]; }; +/* + * The migration capability allows to report supported features for migration. + * + * The structures below define version 1 of this capability. + * + * The existence of this capability indicates that IOMMU kernel driver supports + * dirty page logging. + * + * pgsize_bitmap: Kernel driver returns bitmap of supported page sizes for dirty + * page logging. + * max_dirty_bitmap_size: Kernel driver returns maximum supported dirty bitmap + * size in bytes that can be used by user applications when getting the dirty + * bitmap. + */ +#define VFIO_IOMMU_TYPE1_INFO_CAP_MIGRATION 1 + +struct vfio_iommu_type1_info_cap_migration { + struct vfio_info_cap_header header; + __u32 flags; + __u64 pgsize_bitmap; + __u64 max_dirty_bitmap_size; /* in bytes */ +}; + #define VFIO_IOMMU_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12) /** @@ -805,6 +1059,12 @@ struct vfio_iommu_type1_dma_map { #define VFIO_IOMMU_MAP_DMA _IO(VFIO_TYPE, VFIO_BASE + 13) +struct vfio_bitmap { + __u64 pgsize; /* page size for bitmap in bytes */ + __u64 size; /* in bytes */ + __u64 *data; /* one bit per page */ +}; + /** * VFIO_IOMMU_UNMAP_DMA - _IOWR(VFIO_TYPE, VFIO_BASE + 14, * struct vfio_dma_unmap) @@ -814,12 +1074,23 @@ struct vfio_iommu_type1_dma_map { * 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. + * VFIO_DMA_UNMAP_FLAG_GET_DIRTY_BITMAP should be set to get the dirty bitmap + * before unmapping IO virtual addresses. When this flag is set, the user must + * provide a struct vfio_bitmap in data[]. User must provide zero-allocated + * memory via vfio_bitmap.data and its size in the vfio_bitmap.size field. + * A bit in the bitmap represents one page, of user provided page size in + * vfio_bitmap.pgsize field, consecutively starting from iova offset. Bit set + * indicates that the page at that offset from iova is dirty. A Bitmap of the + * pages in the range of unmapped size is returned in the user-provided + * vfio_bitmap.data. */ struct vfio_iommu_type1_dma_unmap { __u32 argsz; __u32 flags; +#define VFIO_DMA_UNMAP_FLAG_GET_DIRTY_BITMAP (1 << 0) __u64 iova; /* IO virtual address */ __u64 size; /* Size of mapping (bytes) */ + __u8 data[]; }; #define VFIO_IOMMU_UNMAP_DMA _IO(VFIO_TYPE, VFIO_BASE + 14) @@ -831,6 +1102,57 @@ struct vfio_iommu_type1_dma_unmap { #define VFIO_IOMMU_ENABLE _IO(VFIO_TYPE, VFIO_BASE + 15) #define VFIO_IOMMU_DISABLE _IO(VFIO_TYPE, VFIO_BASE + 16) +/** + * VFIO_IOMMU_DIRTY_PAGES - _IOWR(VFIO_TYPE, VFIO_BASE + 17, + * struct vfio_iommu_type1_dirty_bitmap) + * IOCTL is used for dirty pages logging. + * Caller should set flag depending on which operation to perform, details as + * below: + * + * Calling the IOCTL with VFIO_IOMMU_DIRTY_PAGES_FLAG_START flag set, instructs + * the IOMMU driver to log pages that are dirtied or potentially dirtied by + * the device; designed to be used when a migration is in progress. Dirty pages + * are logged until logging is disabled by user application by calling the IOCTL + * with VFIO_IOMMU_DIRTY_PAGES_FLAG_STOP flag. + * + * Calling the IOCTL with VFIO_IOMMU_DIRTY_PAGES_FLAG_STOP flag set, instructs + * the IOMMU driver to stop logging dirtied pages. + * + * Calling the IOCTL with VFIO_IOMMU_DIRTY_PAGES_FLAG_GET_BITMAP flag set + * returns the dirty pages bitmap for IOMMU container for a given IOVA range. + * The user must specify the IOVA range and the pgsize through the structure + * vfio_iommu_type1_dirty_bitmap_get in the data[] portion. This interface + * supports getting a bitmap of the smallest supported pgsize only and can be + * modified in future to get a bitmap of any specified supported pgsize. The + * user must provide a zeroed memory area for the bitmap memory and specify its + * size in bitmap.size. One bit is used to represent one page consecutively + * starting from iova offset. The user should provide page size in bitmap.pgsize + * field. A bit set in the bitmap indicates that the page at that offset from + * iova is dirty. The caller must set argsz to a value including the size of + * structure vfio_iommu_type1_dirty_bitmap_get, but excluding the size of the + * actual bitmap. If dirty pages logging is not enabled, an error will be + * returned. + * + * Only one of the flags _START, _STOP and _GET may be specified at a time. + * + */ +struct vfio_iommu_type1_dirty_bitmap { + __u32 argsz; + __u32 flags; +#define VFIO_IOMMU_DIRTY_PAGES_FLAG_START (1 << 0) +#define VFIO_IOMMU_DIRTY_PAGES_FLAG_STOP (1 << 1) +#define VFIO_IOMMU_DIRTY_PAGES_FLAG_GET_BITMAP (1 << 2) + __u8 data[]; +}; + +struct vfio_iommu_type1_dirty_bitmap_get { + __u64 iova; /* IO virtual address */ + __u64 size; /* Size of iova range */ + struct vfio_bitmap bitmap; +}; + +#define VFIO_IOMMU_DIRTY_PAGES _IO(VFIO_TYPE, VFIO_BASE + 17) + /* -------- Additional API for SPAPR TCE (Server POWERPC) IOMMU -------- */ /* diff --git a/linux-headers/linux/vfio_ccw.h b/linux-headers/linux/vfio_ccw.h index fcc3e69ef526444601cb22d1765a..516496f1d482674a4a5f66133cb7 100644 --- a/linux-headers/linux/vfio_ccw.h +++ b/linux-headers/linux/vfio_ccw.h @@ -34,4 +34,23 @@ struct ccw_cmd_region { __u32 ret_code; } __attribute__((packed)); +/* + * Used for processing commands that read the subchannel-information block + * Reading this region triggers a stsch() to hardware + * Note: this is controlled by a capability + */ +struct ccw_schib_region { +#define SCHIB_AREA_SIZE 52 + __u8 schib_area[SCHIB_AREA_SIZE]; +} __attribute__((packed)); + +/* + * Used for returning a Channel Report Word to userspace. + * Note: this is controlled by a capability + */ +struct ccw_crw_region { + __u32 crw; + __u32 pad; +} __attribute__((packed)); + #endif diff --git a/linux-headers/linux/vhost.h b/linux-headers/linux/vhost.h index 9fe72e4b1373165d7a7aeff61410..0c2349612e776086a2ffd137d402 100644 --- a/linux-headers/linux/vhost.h +++ b/linux-headers/linux/vhost.h @@ -15,6 +15,8 @@ #include <linux/types.h> #include <linux/ioctl.h> +#define VHOST_FILE_UNBIND -1 + /* ioctls */ #define VHOST_VIRTIO 0xAF @@ -140,4 +142,6 @@ /* Get the max ring size. */ #define VHOST_VDPA_GET_VRING_NUM _IOR(VHOST_VIRTIO, 0x76, __u16) +/* Set event fd for config interrupt*/ +#define VHOST_VDPA_SET_CONFIG_CALL _IOW(VHOST_VIRTIO, 0x77, int) #endif
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