* [PULL 1/2] linux-headers: Update headers to v5.18-rc6
2022-05-12 10:29 [PULL 0/2] Update linux-headers to v5.18-rc6 Thomas Huth
@ 2022-05-12 10:29 ` Thomas Huth
2022-05-12 10:29 ` [PULL 2/2] vfio: tolerate migration protocol v1 uapi renames Thomas Huth
2022-05-12 14:01 ` [PULL 0/2] Update linux-headers to v5.18-rc6 Thomas Huth
2 siblings, 0 replies; 6+ messages in thread
From: Thomas Huth @ 2022-05-12 10:29 UTC (permalink / raw)
To: qemu-devel, Richard Henderson
Cc: Alex Williamson, Michael S. Tsirkin, Cornelia Huck, Paolo Bonzini,
Matthew Rosato
Several other upcoming patch series will need this update.
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
.../linux/input-event-codes.h | 25 +-
.../standard-headers/linux/virtio_config.h | 6 +
.../standard-headers/linux/virtio_crypto.h | 82 +++-
| 16 +
| 2 +
| 2 +
| 27 +-
| 4 +
| 8 +-
| 406 +++++++++---------
| 7 +
11 files changed, 365 insertions(+), 220 deletions(-)
diff --git a/include/standard-headers/linux/input-event-codes.h b/include/standard-headers/linux/input-event-codes.h
index b5e86b40ab..50790aee5a 100644
--- a/include/standard-headers/linux/input-event-codes.h
+++ b/include/standard-headers/linux/input-event-codes.h
@@ -278,7 +278,8 @@
#define KEY_PAUSECD 201
#define KEY_PROG3 202
#define KEY_PROG4 203
-#define KEY_DASHBOARD 204 /* AL Dashboard */
+#define KEY_ALL_APPLICATIONS 204 /* AC Desktop Show All Applications */
+#define KEY_DASHBOARD KEY_ALL_APPLICATIONS
#define KEY_SUSPEND 205
#define KEY_CLOSE 206 /* AC Close */
#define KEY_PLAY 207
@@ -612,6 +613,7 @@
#define KEY_ASSISTANT 0x247 /* AL Context-aware desktop assistant */
#define KEY_KBD_LAYOUT_NEXT 0x248 /* AC Next Keyboard Layout Select */
#define KEY_EMOJI_PICKER 0x249 /* Show/hide emoji picker (HUTRR101) */
+#define KEY_DICTATE 0x24a /* Start or Stop Voice Dictation Session (HUTRR99) */
#define KEY_BRIGHTNESS_MIN 0x250 /* Set Brightness to Minimum */
#define KEY_BRIGHTNESS_MAX 0x251 /* Set Brightness to Maximum */
@@ -660,6 +662,27 @@
/* Select an area of screen to be copied */
#define KEY_SELECTIVE_SCREENSHOT 0x27a
+/* Move the focus to the next or previous user controllable element within a UI container */
+#define KEY_NEXT_ELEMENT 0x27b
+#define KEY_PREVIOUS_ELEMENT 0x27c
+
+/* Toggle Autopilot engagement */
+#define KEY_AUTOPILOT_ENGAGE_TOGGLE 0x27d
+
+/* Shortcut Keys */
+#define KEY_MARK_WAYPOINT 0x27e
+#define KEY_SOS 0x27f
+#define KEY_NAV_CHART 0x280
+#define KEY_FISHING_CHART 0x281
+#define KEY_SINGLE_RANGE_RADAR 0x282
+#define KEY_DUAL_RANGE_RADAR 0x283
+#define KEY_RADAR_OVERLAY 0x284
+#define KEY_TRADITIONAL_SONAR 0x285
+#define KEY_CLEARVU_SONAR 0x286
+#define KEY_SIDEVU_SONAR 0x287
+#define KEY_NAV_INFO 0x288
+#define KEY_BRIGHTNESS_MENU 0x289
+
/*
* Some keyboards have keys which do not have a defined meaning, these keys
* are intended to be programmed / bound to macros by the user. For most
diff --git a/include/standard-headers/linux/virtio_config.h b/include/standard-headers/linux/virtio_config.h
index 22e3a85f67..7acd8d4abc 100644
--- a/include/standard-headers/linux/virtio_config.h
+++ b/include/standard-headers/linux/virtio_config.h
@@ -80,6 +80,12 @@
/* This feature indicates support for the packed virtqueue layout. */
#define VIRTIO_F_RING_PACKED 34
+/*
+ * Inorder feature indicates that all buffers are used by the device
+ * in the same order in which they have been made available.
+ */
+#define VIRTIO_F_IN_ORDER 35
+
/*
* This feature indicates that memory accesses by the driver and the
* device are ordered in a way described by the platform.
diff --git a/include/standard-headers/linux/virtio_crypto.h b/include/standard-headers/linux/virtio_crypto.h
index 5ff0b4ee59..68066dafb6 100644
--- a/include/standard-headers/linux/virtio_crypto.h
+++ b/include/standard-headers/linux/virtio_crypto.h
@@ -37,6 +37,7 @@
#define VIRTIO_CRYPTO_SERVICE_HASH 1
#define VIRTIO_CRYPTO_SERVICE_MAC 2
#define VIRTIO_CRYPTO_SERVICE_AEAD 3
+#define VIRTIO_CRYPTO_SERVICE_AKCIPHER 4
#define VIRTIO_CRYPTO_OPCODE(service, op) (((service) << 8) | (op))
@@ -57,6 +58,10 @@ struct virtio_crypto_ctrl_header {
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x02)
#define VIRTIO_CRYPTO_AEAD_DESTROY_SESSION \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x03)
+#define VIRTIO_CRYPTO_AKCIPHER_CREATE_SESSION \
+ VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AKCIPHER, 0x04)
+#define VIRTIO_CRYPTO_AKCIPHER_DESTROY_SESSION \
+ VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AKCIPHER, 0x05)
uint32_t opcode;
uint32_t algo;
uint32_t flag;
@@ -180,6 +185,58 @@ struct virtio_crypto_aead_create_session_req {
uint8_t padding[32];
};
+struct virtio_crypto_rsa_session_para {
+#define VIRTIO_CRYPTO_RSA_RAW_PADDING 0
+#define VIRTIO_CRYPTO_RSA_PKCS1_PADDING 1
+ uint32_t padding_algo;
+
+#define VIRTIO_CRYPTO_RSA_NO_HASH 0
+#define VIRTIO_CRYPTO_RSA_MD2 1
+#define VIRTIO_CRYPTO_RSA_MD3 2
+#define VIRTIO_CRYPTO_RSA_MD4 3
+#define VIRTIO_CRYPTO_RSA_MD5 4
+#define VIRTIO_CRYPTO_RSA_SHA1 5
+#define VIRTIO_CRYPTO_RSA_SHA256 6
+#define VIRTIO_CRYPTO_RSA_SHA384 7
+#define VIRTIO_CRYPTO_RSA_SHA512 8
+#define VIRTIO_CRYPTO_RSA_SHA224 9
+ uint32_t hash_algo;
+};
+
+struct virtio_crypto_ecdsa_session_para {
+#define VIRTIO_CRYPTO_CURVE_UNKNOWN 0
+#define VIRTIO_CRYPTO_CURVE_NIST_P192 1
+#define VIRTIO_CRYPTO_CURVE_NIST_P224 2
+#define VIRTIO_CRYPTO_CURVE_NIST_P256 3
+#define VIRTIO_CRYPTO_CURVE_NIST_P384 4
+#define VIRTIO_CRYPTO_CURVE_NIST_P521 5
+ uint32_t curve_id;
+ uint32_t padding;
+};
+
+struct virtio_crypto_akcipher_session_para {
+#define VIRTIO_CRYPTO_NO_AKCIPHER 0
+#define VIRTIO_CRYPTO_AKCIPHER_RSA 1
+#define VIRTIO_CRYPTO_AKCIPHER_DSA 2
+#define VIRTIO_CRYPTO_AKCIPHER_ECDSA 3
+ uint32_t algo;
+
+#define VIRTIO_CRYPTO_AKCIPHER_KEY_TYPE_PUBLIC 1
+#define VIRTIO_CRYPTO_AKCIPHER_KEY_TYPE_PRIVATE 2
+ uint32_t keytype;
+ uint32_t keylen;
+
+ union {
+ struct virtio_crypto_rsa_session_para rsa;
+ struct virtio_crypto_ecdsa_session_para ecdsa;
+ } u;
+};
+
+struct virtio_crypto_akcipher_create_session_req {
+ struct virtio_crypto_akcipher_session_para para;
+ uint8_t padding[36];
+};
+
struct virtio_crypto_alg_chain_session_para {
#define VIRTIO_CRYPTO_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER 1
#define VIRTIO_CRYPTO_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH 2
@@ -247,6 +304,8 @@ struct virtio_crypto_op_ctrl_req {
mac_create_session;
struct virtio_crypto_aead_create_session_req
aead_create_session;
+ struct virtio_crypto_akcipher_create_session_req
+ akcipher_create_session;
struct virtio_crypto_destroy_session_req
destroy_session;
uint8_t padding[56];
@@ -266,6 +325,14 @@ struct virtio_crypto_op_header {
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x00)
#define VIRTIO_CRYPTO_AEAD_DECRYPT \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x01)
+#define VIRTIO_CRYPTO_AKCIPHER_ENCRYPT \
+ VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AKCIPHER, 0x00)
+#define VIRTIO_CRYPTO_AKCIPHER_DECRYPT \
+ VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AKCIPHER, 0x01)
+#define VIRTIO_CRYPTO_AKCIPHER_SIGN \
+ VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AKCIPHER, 0x02)
+#define VIRTIO_CRYPTO_AKCIPHER_VERIFY \
+ VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AKCIPHER, 0x03)
uint32_t opcode;
/* algo should be service-specific algorithms */
uint32_t algo;
@@ -390,6 +457,16 @@ struct virtio_crypto_aead_data_req {
uint8_t padding[32];
};
+struct virtio_crypto_akcipher_para {
+ uint32_t src_data_len;
+ uint32_t dst_data_len;
+};
+
+struct virtio_crypto_akcipher_data_req {
+ struct virtio_crypto_akcipher_para para;
+ uint8_t padding[40];
+};
+
/* The request of the data virtqueue's packet */
struct virtio_crypto_op_data_req {
struct virtio_crypto_op_header header;
@@ -399,6 +476,7 @@ struct virtio_crypto_op_data_req {
struct virtio_crypto_hash_data_req hash_req;
struct virtio_crypto_mac_data_req mac_req;
struct virtio_crypto_aead_data_req aead_req;
+ struct virtio_crypto_akcipher_data_req akcipher_req;
uint8_t padding[48];
} u;
};
@@ -408,6 +486,8 @@ struct virtio_crypto_op_data_req {
#define VIRTIO_CRYPTO_BADMSG 2
#define VIRTIO_CRYPTO_NOTSUPP 3
#define VIRTIO_CRYPTO_INVSESS 4 /* Invalid session id */
+#define VIRTIO_CRYPTO_NOSPC 5 /* no free session ID */
+#define VIRTIO_CRYPTO_KEY_REJECTED 6 /* Signature verification failed */
/* The accelerator hardware is ready */
#define VIRTIO_CRYPTO_S_HW_READY (1 << 0)
@@ -438,7 +518,7 @@ struct virtio_crypto_config {
uint32_t max_cipher_key_len;
/* Maximum length of authenticated key */
uint32_t max_auth_key_len;
- uint32_t reserve;
+ uint32_t akcipher_algo;
/* Maximum size of each crypto request's content */
uint64_t max_size;
};
--git a/linux-headers/asm-arm64/kvm.h b/linux-headers/asm-arm64/kvm.h
index 3d2ce9912d..5c28a9737a 100644
--- a/linux-headers/asm-arm64/kvm.h
+++ b/linux-headers/asm-arm64/kvm.h
@@ -281,6 +281,11 @@ struct kvm_arm_copy_mte_tags {
#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED 3
#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED (1U << 4)
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3 KVM_REG_ARM_FW_REG(3)
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL 0
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_AVAIL 1
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_REQUIRED 2
+
/* SVE registers */
#define KVM_REG_ARM64_SVE (0x15 << KVM_REG_ARM_COPROC_SHIFT)
@@ -362,6 +367,7 @@ struct kvm_arm_copy_mte_tags {
#define KVM_ARM_VCPU_PMU_V3_IRQ 0
#define KVM_ARM_VCPU_PMU_V3_INIT 1
#define KVM_ARM_VCPU_PMU_V3_FILTER 2
+#define KVM_ARM_VCPU_PMU_V3_SET_PMU 3
#define KVM_ARM_VCPU_TIMER_CTRL 1
#define KVM_ARM_VCPU_TIMER_IRQ_VTIMER 0
#define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1
@@ -411,6 +417,16 @@ struct kvm_arm_copy_mte_tags {
#define KVM_PSCI_RET_INVAL PSCI_RET_INVALID_PARAMS
#define KVM_PSCI_RET_DENIED PSCI_RET_DENIED
+/* arm64-specific kvm_run::system_event flags */
+/*
+ * Reset caused by a PSCI v1.1 SYSTEM_RESET2 call.
+ * Valid only when the system event has a type of KVM_SYSTEM_EVENT_RESET.
+ */
+#define KVM_SYSTEM_EVENT_RESET_FLAG_PSCI_RESET2 (1ULL << 0)
+
+/* run->fail_entry.hardware_entry_failure_reason codes. */
+#define KVM_EXIT_FAIL_ENTRY_CPU_UNSUPPORTED (1ULL << 0)
+
#endif
#endif /* __ARM_KVM_H__ */
--git a/linux-headers/asm-generic/mman-common.h b/linux-headers/asm-generic/mman-common.h
index 1567a3294c..6c1aa92a92 100644
--- a/linux-headers/asm-generic/mman-common.h
+++ b/linux-headers/asm-generic/mman-common.h
@@ -75,6 +75,8 @@
#define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */
#define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */
+#define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */
+
/* compatibility flags */
#define MAP_FILE 0
--git a/linux-headers/asm-mips/mman.h b/linux-headers/asm-mips/mman.h
index 40b210c65a..1be428663c 100644
--- a/linux-headers/asm-mips/mman.h
+++ b/linux-headers/asm-mips/mman.h
@@ -101,6 +101,8 @@
#define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */
#define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */
+#define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */
+
/* compatibility flags */
#define MAP_FILE 0
--git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index d232feaae9..0d05d02ee4 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -445,7 +445,11 @@ struct kvm_run {
#define KVM_SYSTEM_EVENT_RESET 2
#define KVM_SYSTEM_EVENT_CRASH 3
__u32 type;
- __u64 flags;
+ __u32 ndata;
+ union {
+ __u64 flags;
+ __u64 data[16];
+ };
} system_event;
/* KVM_EXIT_S390_STSI */
struct {
@@ -562,9 +566,12 @@ struct kvm_s390_mem_op {
__u32 op; /* type of operation */
__u64 buf; /* buffer in userspace */
union {
- __u8 ar; /* the access register number */
+ struct {
+ __u8 ar; /* the access register number */
+ __u8 key; /* access key, ignored if flag unset */
+ };
__u32 sida_offset; /* offset into the sida */
- __u8 reserved[32]; /* should be set to 0 */
+ __u8 reserved[32]; /* ignored */
};
};
/* types for kvm_s390_mem_op->op */
@@ -572,9 +579,12 @@ struct kvm_s390_mem_op {
#define KVM_S390_MEMOP_LOGICAL_WRITE 1
#define KVM_S390_MEMOP_SIDA_READ 2
#define KVM_S390_MEMOP_SIDA_WRITE 3
+#define KVM_S390_MEMOP_ABSOLUTE_READ 4
+#define KVM_S390_MEMOP_ABSOLUTE_WRITE 5
/* flags for kvm_s390_mem_op->flags */
#define KVM_S390_MEMOP_F_CHECK_ONLY (1ULL << 0)
#define KVM_S390_MEMOP_F_INJECT_EXCEPTION (1ULL << 1)
+#define KVM_S390_MEMOP_F_SKEY_PROTECTION (1ULL << 2)
/* for KVM_INTERRUPT */
struct kvm_interrupt {
@@ -1134,6 +1144,12 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_VM_GPA_BITS 207
#define KVM_CAP_XSAVE2 208
#define KVM_CAP_SYS_ATTRIBUTES 209
+#define KVM_CAP_PPC_AIL_MODE_3 210
+#define KVM_CAP_S390_MEM_OP_EXTENSION 211
+#define KVM_CAP_PMU_CAPABILITY 212
+#define KVM_CAP_DISABLE_QUIRKS2 213
+/* #define KVM_CAP_VM_TSC_CONTROL 214 */
+#define KVM_CAP_SYSTEM_EVENT_DATA 215
#ifdef KVM_CAP_IRQ_ROUTING
@@ -1624,9 +1640,6 @@ struct kvm_enc_region {
#define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3)
#define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4)
-/* Available with KVM_CAP_XSAVE2 */
-#define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave)
-
struct kvm_s390_pv_sec_parm {
__u64 origin;
__u64 length;
@@ -1973,6 +1986,8 @@ struct kvm_dirty_gfn {
#define KVM_BUS_LOCK_DETECTION_OFF (1 << 0)
#define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1)
+#define KVM_PMU_CAP_DISABLE (1 << 0)
+
/**
* struct kvm_stats_header - Header of per vm/vcpu binary statistics data.
* @flags: Some extra information for header, always 0 for now.
--git a/linux-headers/linux/psci.h b/linux-headers/linux/psci.h
index a6772d508b..213b2a0f70 100644
--- a/linux-headers/linux/psci.h
+++ b/linux-headers/linux/psci.h
@@ -82,6 +82,10 @@
#define PSCI_0_2_TOS_UP_NO_MIGRATE 1
#define PSCI_0_2_TOS_MP 2
+/* PSCI v1.1 reset type encoding for SYSTEM_RESET2 */
+#define PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET 0
+#define PSCI_1_1_RESET_TYPE_VENDOR_START 0x80000000U
+
/* PSCI version decoding (independent of PSCI version) */
#define PSCI_VERSION_MAJOR_SHIFT 16
#define PSCI_VERSION_MINOR_MASK \
--git a/linux-headers/linux/userfaultfd.h b/linux-headers/linux/userfaultfd.h
index 8479af5f4c..769b8379e4 100644
--- a/linux-headers/linux/userfaultfd.h
+++ b/linux-headers/linux/userfaultfd.h
@@ -32,7 +32,8 @@
UFFD_FEATURE_SIGBUS | \
UFFD_FEATURE_THREAD_ID | \
UFFD_FEATURE_MINOR_HUGETLBFS | \
- UFFD_FEATURE_MINOR_SHMEM)
+ UFFD_FEATURE_MINOR_SHMEM | \
+ UFFD_FEATURE_EXACT_ADDRESS)
#define UFFD_API_IOCTLS \
((__u64)1 << _UFFDIO_REGISTER | \
(__u64)1 << _UFFDIO_UNREGISTER | \
@@ -189,6 +190,10 @@ struct uffdio_api {
*
* UFFD_FEATURE_MINOR_SHMEM indicates the same support as
* UFFD_FEATURE_MINOR_HUGETLBFS, but for shmem-backed pages instead.
+ *
+ * UFFD_FEATURE_EXACT_ADDRESS indicates that the exact address of page
+ * faults would be provided and the offset within the page would not be
+ * masked.
*/
#define UFFD_FEATURE_PAGEFAULT_FLAG_WP (1<<0)
#define UFFD_FEATURE_EVENT_FORK (1<<1)
@@ -201,6 +206,7 @@ struct uffdio_api {
#define UFFD_FEATURE_THREAD_ID (1<<8)
#define UFFD_FEATURE_MINOR_HUGETLBFS (1<<9)
#define UFFD_FEATURE_MINOR_SHMEM (1<<10)
+#define UFFD_FEATURE_EXACT_ADDRESS (1<<11)
__u64 features;
__u64 ioctls;
--git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h
index e680594f27..e9f7795c39 100644
--- a/linux-headers/linux/vfio.h
+++ b/linux-headers/linux/vfio.h
@@ -323,7 +323,7 @@ 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)
+#define VFIO_REGION_TYPE_MIGRATION_DEPRECATED (3)
/* sub-types for VFIO_REGION_TYPE_PCI_* */
@@ -405,225 +405,29 @@ struct vfio_region_gfx_edid {
#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 _RUNNING 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.
- */
+#define VFIO_REGION_SUBTYPE_MIGRATION_DEPRECATED (1)
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_V1_STOP (0)
+#define VFIO_DEVICE_STATE_V1_RUNNING (1 << 0)
+#define VFIO_DEVICE_STATE_V1_SAVING (1 << 1)
+#define VFIO_DEVICE_STATE_V1_RESUMING (1 << 2)
+#define VFIO_DEVICE_STATE_MASK (VFIO_DEVICE_STATE_V1_RUNNING | \
+ VFIO_DEVICE_STATE_V1_SAVING | \
+ VFIO_DEVICE_STATE_V1_RESUMING)
#define VFIO_DEVICE_STATE_VALID(state) \
- (state & VFIO_DEVICE_STATE_RESUMING ? \
- (state & VFIO_DEVICE_STATE_MASK) == VFIO_DEVICE_STATE_RESUMING : 1)
+ (state & VFIO_DEVICE_STATE_V1_RESUMING ? \
+ (state & VFIO_DEVICE_STATE_MASK) == VFIO_DEVICE_STATE_V1_RESUMING : 1)
#define VFIO_DEVICE_STATE_IS_ERROR(state) \
- ((state & VFIO_DEVICE_STATE_MASK) == (VFIO_DEVICE_STATE_SAVING | \
- VFIO_DEVICE_STATE_RESUMING))
+ ((state & VFIO_DEVICE_STATE_MASK) == (VFIO_DEVICE_STATE_V1_SAVING | \
+ VFIO_DEVICE_STATE_V1_RESUMING))
#define VFIO_DEVICE_STATE_SET_ERROR(state) \
- ((state & ~VFIO_DEVICE_STATE_MASK) | VFIO_DEVICE_SATE_SAVING | \
- VFIO_DEVICE_STATE_RESUMING)
+ ((state & ~VFIO_DEVICE_STATE_MASK) | VFIO_DEVICE_STATE_V1_SAVING | \
+ VFIO_DEVICE_STATE_V1_RESUMING)
__u32 reserved;
__u64 pending_bytes;
@@ -1002,6 +806,186 @@ struct vfio_device_feature {
*/
#define VFIO_DEVICE_FEATURE_PCI_VF_TOKEN (0)
+/*
+ * Indicates the device can support the migration API through
+ * VFIO_DEVICE_FEATURE_MIG_DEVICE_STATE. If this GET succeeds, the RUNNING and
+ * ERROR states are always supported. Support for additional states is
+ * indicated via the flags field; at least VFIO_MIGRATION_STOP_COPY must be
+ * set.
+ *
+ * VFIO_MIGRATION_STOP_COPY means that STOP, STOP_COPY and
+ * RESUMING are supported.
+ *
+ * VFIO_MIGRATION_STOP_COPY | VFIO_MIGRATION_P2P means that RUNNING_P2P
+ * is supported in addition to the STOP_COPY states.
+ *
+ * Other combinations of flags have behavior to be defined in the future.
+ */
+struct vfio_device_feature_migration {
+ __aligned_u64 flags;
+#define VFIO_MIGRATION_STOP_COPY (1 << 0)
+#define VFIO_MIGRATION_P2P (1 << 1)
+};
+#define VFIO_DEVICE_FEATURE_MIGRATION 1
+
+/*
+ * Upon VFIO_DEVICE_FEATURE_SET, execute a migration state change on the VFIO
+ * device. The new state is supplied in device_state, see enum
+ * vfio_device_mig_state for details
+ *
+ * The kernel migration driver must fully transition the device to the new state
+ * value before the operation returns to the user.
+ *
+ * The kernel migration driver must not generate asynchronous device state
+ * transitions outside of manipulation by the user or the VFIO_DEVICE_RESET
+ * ioctl as described above.
+ *
+ * If this function fails then current device_state may be the original
+ * operating state or some other state along the combination transition path.
+ * The user can then decide if it should execute a VFIO_DEVICE_RESET, attempt
+ * to return to the original state, or attempt to return to some other state
+ * such as RUNNING or STOP.
+ *
+ * If the new_state starts a new data transfer session then the FD associated
+ * with that session is returned in data_fd. The user is responsible to close
+ * this FD when it is finished. The user must consider the migration data stream
+ * carried over the FD to be opaque and must preserve the byte order of the
+ * stream. The user is not required to preserve buffer segmentation when writing
+ * the data stream during the RESUMING operation.
+ *
+ * Upon VFIO_DEVICE_FEATURE_GET, get the current migration state of the VFIO
+ * device, data_fd will be -1.
+ */
+struct vfio_device_feature_mig_state {
+ __u32 device_state; /* From enum vfio_device_mig_state */
+ __s32 data_fd;
+};
+#define VFIO_DEVICE_FEATURE_MIG_DEVICE_STATE 2
+
+/*
+ * The device migration Finite State Machine is described by the enum
+ * vfio_device_mig_state. Some of the FSM arcs will create a migration data
+ * transfer session by returning a FD, in this case the migration data will
+ * flow over the FD using read() and write() as discussed below.
+ *
+ * There are 5 states to support VFIO_MIGRATION_STOP_COPY:
+ * RUNNING - The device is running normally
+ * STOP - The device does not change the internal or external state
+ * STOP_COPY - The device internal state can be read out
+ * RESUMING - The device is stopped and is loading a new internal state
+ * ERROR - The device has failed and must be reset
+ *
+ * And 1 optional state to support VFIO_MIGRATION_P2P:
+ * RUNNING_P2P - RUNNING, except the device cannot do peer to peer DMA
+ *
+ * The FSM takes actions on the arcs between FSM states. The driver implements
+ * the following behavior for the FSM arcs:
+ *
+ * RUNNING_P2P -> STOP
+ * STOP_COPY -> STOP
+ * While in STOP the device must stop the operation of the device. The device
+ * must not generate interrupts, DMA, or any other change to external state.
+ * It must not change its internal state. When stopped the device and kernel
+ * migration driver must accept and respond to interaction to support external
+ * subsystems in the STOP state, for example PCI MSI-X and PCI config space.
+ * Failure by the user to restrict device access while in STOP must not result
+ * in error conditions outside the user context (ex. host system faults).
+ *
+ * The STOP_COPY arc will terminate a data transfer session.
+ *
+ * RESUMING -> STOP
+ * Leaving RESUMING terminates a data transfer session and indicates the
+ * device should complete processing of the data delivered by write(). The
+ * kernel migration driver should complete the incorporation of data written
+ * to the data transfer FD into the device internal state and perform
+ * final validity and consistency checking of the new device state. If the
+ * user provided data is found to be incomplete, inconsistent, or otherwise
+ * invalid, the migration driver must fail the SET_STATE ioctl and
+ * optionally go to the ERROR state as described below.
+ *
+ * While in STOP the device has the same behavior as other STOP states
+ * described above.
+ *
+ * To abort a RESUMING session the device must be reset.
+ *
+ * RUNNING_P2P -> RUNNING
+ * While in RUNNING the device is fully operational, the device may generate
+ * interrupts, DMA, respond to MMIO, all vfio device regions are functional,
+ * and the device may advance its internal state.
+ *
+ * RUNNING -> RUNNING_P2P
+ * STOP -> RUNNING_P2P
+ * While in RUNNING_P2P the device is partially running in the P2P quiescent
+ * state defined below.
+ *
+ * STOP -> STOP_COPY
+ * This arc begin the process of saving the device state and will return a
+ * new data_fd.
+ *
+ * While in the STOP_COPY state the device has the same behavior as STOP
+ * with the addition that the data transfers session continues to stream the
+ * migration state. End of stream on the FD indicates the entire device
+ * state has been transferred.
+ *
+ * The user should take steps to restrict access to vfio device regions while
+ * the device is in STOP_COPY or risk corruption of the device migration data
+ * stream.
+ *
+ * STOP -> RESUMING
+ * Entering the RESUMING state starts a process of restoring the device state
+ * and will return a new data_fd. The data stream fed into the data_fd should
+ * be taken from the data transfer output of a single FD during saving from
+ * a compatible device. The migration driver may alter/reset the internal
+ * device state for this arc if required to prepare the device to receive the
+ * migration data.
+ *
+ * any -> ERROR
+ * ERROR cannot be specified as a device state, however any transition request
+ * can be failed with an errno return and may then move the device_state into
+ * ERROR. In this case the device was unable to execute the requested arc and
+ * was also unable to restore the device to any valid device_state.
+ * To recover from ERROR VFIO_DEVICE_RESET must be used to return the
+ * device_state back to RUNNING.
+ *
+ * The optional peer to peer (P2P) quiescent state is intended to be a quiescent
+ * state for the device for the purposes of managing multiple devices within a
+ * user context where peer-to-peer DMA between devices may be active. The
+ * RUNNING_P2P states must prevent the device from initiating
+ * any new P2P DMA transactions. If the device can identify P2P transactions
+ * then it can stop only P2P DMA, otherwise it must stop all DMA. The migration
+ * driver must complete any such outstanding operations prior to completing the
+ * FSM arc into a P2P state. For the purpose of specification the states
+ * behave as though the device was fully running if not supported. Like while in
+ * STOP or STOP_COPY the user must not touch the device, otherwise the state
+ * can be exited.
+ *
+ * The remaining possible transitions are interpreted as combinations of the
+ * above FSM arcs. As there are multiple paths through the FSM arcs the path
+ * should be selected based on the following rules:
+ * - Select the shortest path.
+ * Refer to vfio_mig_get_next_state() for the result of the algorithm.
+ *
+ * The automatic transit through the FSM arcs that make up the combination
+ * transition is invisible to the user. When working with combination arcs the
+ * user may see any step along the path in the device_state if SET_STATE
+ * fails. When handling these types of errors users should anticipate future
+ * revisions of this protocol using new states and those states becoming
+ * visible in this case.
+ *
+ * The optional states cannot be used with SET_STATE if the device does not
+ * support them. The user can discover if these states are supported by using
+ * VFIO_DEVICE_FEATURE_MIGRATION. By using combination transitions the user can
+ * avoid knowing about these optional states if the kernel driver supports them.
+ */
+enum vfio_device_mig_state {
+ VFIO_DEVICE_STATE_ERROR = 0,
+ VFIO_DEVICE_STATE_STOP = 1,
+ VFIO_DEVICE_STATE_RUNNING = 2,
+ VFIO_DEVICE_STATE_STOP_COPY = 3,
+ VFIO_DEVICE_STATE_RESUMING = 4,
+ VFIO_DEVICE_STATE_RUNNING_P2P = 5,
+};
+
/* -------- API for Type1 VFIO IOMMU -------- */
/**
--git a/linux-headers/linux/vhost.h b/linux-headers/linux/vhost.h
index c998860d7b..5d99e7c242 100644
--- a/linux-headers/linux/vhost.h
+++ b/linux-headers/linux/vhost.h
@@ -150,4 +150,11 @@
/* Get the valid iova range */
#define VHOST_VDPA_GET_IOVA_RANGE _IOR(VHOST_VIRTIO, 0x78, \
struct vhost_vdpa_iova_range)
+
+/* Get the config size */
+#define VHOST_VDPA_GET_CONFIG_SIZE _IOR(VHOST_VIRTIO, 0x79, __u32)
+
+/* Get the count of all virtqueues */
+#define VHOST_VDPA_GET_VQS_COUNT _IOR(VHOST_VIRTIO, 0x80, __u32)
+
#endif
--
2.27.0
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PULL 2/2] vfio: tolerate migration protocol v1 uapi renames
2022-05-12 10:29 [PULL 0/2] Update linux-headers to v5.18-rc6 Thomas Huth
2022-05-12 10:29 ` [PULL 1/2] linux-headers: Update headers " Thomas Huth
@ 2022-05-12 10:29 ` Thomas Huth
2022-05-12 13:53 ` Avihai Horon
2022-05-12 14:01 ` [PULL 0/2] Update linux-headers to v5.18-rc6 Thomas Huth
2 siblings, 1 reply; 6+ messages in thread
From: Thomas Huth @ 2022-05-12 10:29 UTC (permalink / raw)
To: qemu-devel, Richard Henderson
Cc: Alex Williamson, Michael S. Tsirkin, Cornelia Huck, Paolo Bonzini,
Matthew Rosato
From: Matthew Rosato <mjrosato@linux.ibm.com>
The v1 uapi is deprecated and will be replaced by v2 at some point;
this patch just tolerates the renaming of uapi fields to reflect
v1 / deprecated status.
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Message-Id: <20220404181726.60291-3-mjrosato@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
hw/vfio/common.c | 2 +-
hw/vfio/migration.c | 19 +++++++++++--------
2 files changed, 12 insertions(+), 9 deletions(-)
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 159f910421..8e73d3714a 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -381,7 +381,7 @@ static bool vfio_devices_all_running_and_saving(VFIOContainer *container)
return false;
}
- if ((migration->device_state & VFIO_DEVICE_STATE_SAVING) &&
+ if ((migration->device_state & VFIO_DEVICE_STATE_V1_SAVING) &&
(migration->device_state & VFIO_DEVICE_STATE_RUNNING)) {
continue;
} else {
diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
index ff6b45de6b..e109cee551 100644
--- a/hw/vfio/migration.c
+++ b/hw/vfio/migration.c
@@ -432,7 +432,7 @@ static int vfio_save_setup(QEMUFile *f, void *opaque)
}
ret = vfio_migration_set_state(vbasedev, VFIO_DEVICE_STATE_MASK,
- VFIO_DEVICE_STATE_SAVING);
+ VFIO_DEVICE_STATE_V1_SAVING);
if (ret) {
error_report("%s: Failed to set state SAVING", vbasedev->name);
return ret;
@@ -532,7 +532,7 @@ static int vfio_save_complete_precopy(QEMUFile *f, void *opaque)
int ret;
ret = vfio_migration_set_state(vbasedev, ~VFIO_DEVICE_STATE_RUNNING,
- VFIO_DEVICE_STATE_SAVING);
+ VFIO_DEVICE_STATE_V1_SAVING);
if (ret) {
error_report("%s: Failed to set state STOP and SAVING",
vbasedev->name);
@@ -569,7 +569,7 @@ static int vfio_save_complete_precopy(QEMUFile *f, void *opaque)
return ret;
}
- ret = vfio_migration_set_state(vbasedev, ~VFIO_DEVICE_STATE_SAVING, 0);
+ ret = vfio_migration_set_state(vbasedev, ~VFIO_DEVICE_STATE_V1_SAVING, 0);
if (ret) {
error_report("%s: Failed to set state STOPPED", vbasedev->name);
return ret;
@@ -730,7 +730,7 @@ static void vfio_vmstate_change(void *opaque, bool running, RunState state)
* start saving data.
*/
if (state == RUN_STATE_SAVE_VM) {
- value = VFIO_DEVICE_STATE_SAVING;
+ value = VFIO_DEVICE_STATE_V1_SAVING;
} else {
value = 0;
}
@@ -768,8 +768,9 @@ static void vfio_migration_state_notifier(Notifier *notifier, void *data)
case MIGRATION_STATUS_FAILED:
bytes_transferred = 0;
ret = vfio_migration_set_state(vbasedev,
- ~(VFIO_DEVICE_STATE_SAVING | VFIO_DEVICE_STATE_RESUMING),
- VFIO_DEVICE_STATE_RUNNING);
+ ~(VFIO_DEVICE_STATE_V1_SAVING |
+ VFIO_DEVICE_STATE_RESUMING),
+ VFIO_DEVICE_STATE_RUNNING);
if (ret) {
error_report("%s: Failed to set state RUNNING", vbasedev->name);
}
@@ -864,8 +865,10 @@ int vfio_migration_probe(VFIODevice *vbasedev, Error **errp)
goto add_blocker;
}
- ret = vfio_get_dev_region_info(vbasedev, VFIO_REGION_TYPE_MIGRATION,
- VFIO_REGION_SUBTYPE_MIGRATION, &info);
+ ret = vfio_get_dev_region_info(vbasedev,
+ VFIO_REGION_TYPE_MIGRATION_DEPRECATED,
+ VFIO_REGION_SUBTYPE_MIGRATION_DEPRECATED,
+ &info);
if (ret) {
goto add_blocker;
}
--
2.27.0
^ permalink raw reply related [flat|nested] 6+ messages in thread