[kvmtool PATCH 01/10] Sync-up header with Linux-6.8-rc4 for KVM RISC-V

Anup Patel
2024-02-14T12:21:54Z

We sync-up Linux headers to get latest KVM RISC-V headers having
Zbc, Scalar crypto, Vector crypto, Zfh[min], Zihintntl, Zvfh[min],
Zfa, and SBI steal-time support.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
include/linux/kvm.h | 140 ++++++++++++----------------------
include/linux/virtio_config.h | 8 +-
include/linux/virtio_pci.h | 68 +++++++++++++++++
riscv/include/asm/kvm.h | 40 ++++++++++
x86/include/asm/kvm.h | 3 +
5 files changed, 168 insertions(+), 91 deletions(-)

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 211b86d..c330853 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -16,76 +16,6 @@

#define KVM_API_VERSION 12

-/* *** Deprecated interfaces *** */
-
-#define KVM_TRC_SHIFT 16
-
-#define KVM_TRC_ENTRYEXIT (1 << KVM_TRC_SHIFT)
-#define KVM_TRC_HANDLER (1 << (KVM_TRC_SHIFT + 1))
-
-#define KVM_TRC_VMENTRY (KVM_TRC_ENTRYEXIT + 0x01)
-#define KVM_TRC_VMEXIT (KVM_TRC_ENTRYEXIT + 0x02)
-#define KVM_TRC_PAGE_FAULT (KVM_TRC_HANDLER + 0x01)
-
-#define KVM_TRC_HEAD_SIZE 12
-#define KVM_TRC_CYCLE_SIZE 8
-#define KVM_TRC_EXTRA_MAX 7
-
-#define KVM_TRC_INJ_VIRQ (KVM_TRC_HANDLER + 0x02)
-#define KVM_TRC_REDELIVER_EVT (KVM_TRC_HANDLER + 0x03)
-#define KVM_TRC_PEND_INTR (KVM_TRC_HANDLER + 0x04)
-#define KVM_TRC_IO_READ (KVM_TRC_HANDLER + 0x05)
-#define KVM_TRC_IO_WRITE (KVM_TRC_HANDLER + 0x06)
-#define KVM_TRC_CR_READ (KVM_TRC_HANDLER + 0x07)
-#define KVM_TRC_CR_WRITE (KVM_TRC_HANDLER + 0x08)
-#define KVM_TRC_DR_READ (KVM_TRC_HANDLER + 0x09)
-#define KVM_TRC_DR_WRITE (KVM_TRC_HANDLER + 0x0A)
-#define KVM_TRC_MSR_READ (KVM_TRC_HANDLER + 0x0B)
-#define KVM_TRC_MSR_WRITE (KVM_TRC_HANDLER + 0x0C)
-#define KVM_TRC_CPUID (KVM_TRC_HANDLER + 0x0D)
-#define KVM_TRC_INTR (KVM_TRC_HANDLER + 0x0E)
-#define KVM_TRC_NMI (KVM_TRC_HANDLER + 0x0F)
-#define KVM_TRC_VMMCALL (KVM_TRC_HANDLER + 0x10)
-#define KVM_TRC_HLT (KVM_TRC_HANDLER + 0x11)
-#define KVM_TRC_CLTS (KVM_TRC_HANDLER + 0x12)
-#define KVM_TRC_LMSW (KVM_TRC_HANDLER + 0x13)
-#define KVM_TRC_APIC_ACCESS (KVM_TRC_HANDLER + 0x14)
-#define KVM_TRC_TDP_FAULT (KVM_TRC_HANDLER + 0x15)
-#define KVM_TRC_GTLB_WRITE (KVM_TRC_HANDLER + 0x16)
-#define KVM_TRC_STLB_WRITE (KVM_TRC_HANDLER + 0x17)
-#define KVM_TRC_STLB_INVAL (KVM_TRC_HANDLER + 0x18)
-#define KVM_TRC_PPC_INSTR (KVM_TRC_HANDLER + 0x19)
-
-struct kvm_user_trace_setup {
- __u32 buf_size;
- __u32 buf_nr;
-};
-
-#define __KVM_DEPRECATED_MAIN_W_0x06 \
- _IOW(KVMIO, 0x06, struct kvm_user_trace_setup)
-#define __KVM_DEPRECATED_MAIN_0x07 _IO(KVMIO, 0x07)
-#define __KVM_DEPRECATED_MAIN_0x08 _IO(KVMIO, 0x08)
-
-#define __KVM_DEPRECATED_VM_R_0x70 _IOR(KVMIO, 0x70, struct kvm_assigned_irq)
-
-struct kvm_breakpoint {
- __u32 enabled;
- __u32 padding;
- __u64 address;
-};
-
-struct kvm_debug_guest {
- __u32 enabled;
- __u32 pad;
- struct kvm_breakpoint breakpoints[4];
- __u32 singlestep;
-};
-
-#define __KVM_DEPRECATED_VCPU_W_0x87 _IOW(KVMIO, 0x87, struct kvm_debug_guest)
-
-/* *** End of deprecated interfaces *** */
-
-
/* for KVM_SET_USER_MEMORY_REGION */
struct kvm_userspace_memory_region {
__u32 slot;
@@ -95,6 +25,19 @@ struct kvm_userspace_memory_region {
__u64 userspace_addr; /* start of the userspace allocated memory */
};

+/* for KVM_SET_USER_MEMORY_REGION2 */
+struct kvm_userspace_memory_region2 {
+ __u32 slot;
+ __u32 flags;
+ __u64 guest_phys_addr;
+ __u64 memory_size;
+ __u64 userspace_addr;
+ __u64 guest_memfd_offset;
+ __u32 guest_memfd;
+ __u32 pad1;
+ __u64 pad2[14];
+};
+
/*
* The bit 0 ~ bit 15 of kvm_userspace_memory_region::flags are visible for
* userspace, other bits are reserved for kvm internal use which are defined
@@ -102,6 +45,7 @@ struct kvm_userspace_memory_region {
*/
#define KVM_MEM_LOG_DIRTY_PAGES (1UL << 0)
#define KVM_MEM_READONLY (1UL << 1)
+#define KVM_MEM_GUEST_MEMFD (1UL << 2)

/* for KVM_IRQ_LINE */
struct kvm_irq_level {
@@ -265,6 +209,7 @@ struct kvm_xen_exit {
#define KVM_EXIT_RISCV_CSR 36
#define KVM_EXIT_NOTIFY 37
#define KVM_EXIT_LOONGARCH_IOCSR 38
+#define KVM_EXIT_MEMORY_FAULT 39

/* For KVM_EXIT_INTERNAL_ERROR */
/* Emulate instruction failed. */
@@ -518,6 +463,13 @@ struct kvm_run {
#define KVM_NOTIFY_CONTEXT_INVALID (1 << 0)
__u32 flags;
} notify;
+ /* KVM_EXIT_MEMORY_FAULT */
+ struct {
+#define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3)
+ __u64 flags;
+ __u64 gpa;
+ __u64 size;
+ } memory_fault;
/* Fix the size of the union. */
char padding[256];
};
@@ -945,9 +897,6 @@ struct kvm_ppc_resize_hpt {
*/
#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
-#define KVM_TRACE_ENABLE __KVM_DEPRECATED_MAIN_W_0x06
-#define KVM_TRACE_PAUSE __KVM_DEPRECATED_MAIN_0x07
-#define KVM_TRACE_DISABLE __KVM_DEPRECATED_MAIN_0x08
#define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
#define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list)

@@ -1201,6 +1150,11 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228
#define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229
#define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230
+#define KVM_CAP_USER_MEMORY2 231
+#define KVM_CAP_MEMORY_FAULT_INFO 232
+#define KVM_CAP_MEMORY_ATTRIBUTES 233
+#define KVM_CAP_GUEST_MEMFD 234
+#define KVM_CAP_VM_TYPES 235

#ifdef KVM_CAP_IRQ_ROUTING

@@ -1291,6 +1245,7 @@ struct kvm_x86_mce {
#define KVM_XEN_HVM_CONFIG_EVTCHN_2LEVEL (1 << 4)
#define KVM_XEN_HVM_CONFIG_EVTCHN_SEND (1 << 5)
#define KVM_XEN_HVM_CONFIG_RUNSTATE_UPDATE_FLAG (1 << 6)
+#define KVM_XEN_HVM_CONFIG_PVCLOCK_TSC_UNSTABLE (1 << 7)

struct kvm_xen_hvm_config {
__u32 flags;
@@ -1483,6 +1438,8 @@ struct kvm_vfio_spapr_tce {
struct kvm_userspace_memory_region)
#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
#define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
+#define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, \
+ struct kvm_userspace_memory_region2)

/* enable ucontrol for s390 */
struct kvm_s390_ucas_mapping {
@@ -1507,20 +1464,8 @@ struct kvm_s390_ucas_mapping {
_IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone)
#define KVM_UNREGISTER_COALESCED_MMIO \
_IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone)
-#define KVM_ASSIGN_PCI_DEVICE _IOR(KVMIO, 0x69, \
- struct kvm_assigned_pci_dev)
#define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
-/* deprecated, replaced by KVM_ASSIGN_DEV_IRQ */
-#define KVM_ASSIGN_IRQ __KVM_DEPRECATED_VM_R_0x70
-#define KVM_ASSIGN_DEV_IRQ _IOW(KVMIO, 0x70, struct kvm_assigned_irq)
#define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71)
-#define KVM_DEASSIGN_PCI_DEVICE _IOW(KVMIO, 0x72, \
- struct kvm_assigned_pci_dev)
-#define KVM_ASSIGN_SET_MSIX_NR _IOW(KVMIO, 0x73, \
- struct kvm_assigned_msix_nr)
-#define KVM_ASSIGN_SET_MSIX_ENTRY _IOW(KVMIO, 0x74, \
- struct kvm_assigned_msix_entry)
-#define KVM_DEASSIGN_DEV_IRQ _IOW(KVMIO, 0x75, struct kvm_assigned_irq)
#define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd)
#define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config)
#define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78)
@@ -1537,9 +1482,6 @@ struct kvm_s390_ucas_mapping {
* KVM_CAP_VM_TSC_CONTROL to set defaults for a VM */
#define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2)
#define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3)
-/* Available with KVM_CAP_PCI_2_3 */
-#define KVM_ASSIGN_SET_INTX_MASK _IOW(KVMIO, 0xa4, \
- struct kvm_assigned_pci_dev)
/* Available with KVM_CAP_SIGNAL_MSI */
#define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi)
/* Available with KVM_CAP_PPC_GET_SMMU_INFO */
@@ -1592,8 +1534,6 @@ struct kvm_s390_ucas_mapping {
#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
-/* KVM_DEBUG_GUEST is no longer supported, use KVM_SET_GUEST_DEBUG instead */
-#define KVM_DEBUG_GUEST __KVM_DEPRECATED_VCPU_W_0x87
#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
@@ -2267,4 +2207,24 @@ struct kvm_s390_zpci_op {
/* flags for kvm_s390_zpci_op->u.reg_aen.flags */
#define KVM_S390_ZPCIOP_REGAEN_HOST (1 << 0)

+/* Available with KVM_CAP_MEMORY_ATTRIBUTES */
+#define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes)
+
+struct kvm_memory_attributes {
+ __u64 address;
+ __u64 size;
+ __u64 attributes;
+ __u64 flags;
+};
+
+#define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3)
+
+#define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
+
+struct kvm_create_guest_memfd {
+ __u64 size;
+ __u64 flags;
+ __u64 reserved[6];
+};
+
#endif /* __LINUX_KVM_H */
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 8881aea..2445f36 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -52,7 +52,7 @@
* rest are per-device feature bits.
*/
#define VIRTIO_TRANSPORT_F_START 28
-#define VIRTIO_TRANSPORT_F_END 41
+#define VIRTIO_TRANSPORT_F_END 42

#ifndef VIRTIO_CONFIG_NO_LEGACY
/* Do we get callbacks when the ring is completely used, even if we've
@@ -114,4 +114,10 @@
* This feature indicates that the driver can reset a queue individually.
*/
#define VIRTIO_F_RING_RESET 40
+
+/*
+ * This feature indicates that the device support administration virtqueues.
+ */
+#define VIRTIO_F_ADMIN_VQ 41
+
#endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */
diff --git a/include/linux/virtio_pci.h b/include/linux/virtio_pci.h
index 44f4dd2..ef3810d 100644
--- a/include/linux/virtio_pci.h
+++ b/include/linux/virtio_pci.h
@@ -175,6 +175,9 @@ struct virtio_pci_modern_common_cfg {

__le16 queue_notify_data; /* read-write */
__le16 queue_reset; /* read-write */
+
+ __le16 admin_queue_index; /* read-only */
+ __le16 admin_queue_num; /* read-only */
};

/* Fields in VIRTIO_PCI_CAP_PCI_CFG: */
@@ -215,7 +218,72 @@ struct virtio_pci_cfg_cap {
#define VIRTIO_PCI_COMMON_Q_USEDHI 52
#define VIRTIO_PCI_COMMON_Q_NDATA 56
#define VIRTIO_PCI_COMMON_Q_RESET 58
+#define VIRTIO_PCI_COMMON_ADM_Q_IDX 60
+#define VIRTIO_PCI_COMMON_ADM_Q_NUM 62

#endif /* VIRTIO_PCI_NO_MODERN */

+/* Admin command status. */
+#define VIRTIO_ADMIN_STATUS_OK 0
+
+/* Admin command opcode. */
+#define VIRTIO_ADMIN_CMD_LIST_QUERY 0x0
+#define VIRTIO_ADMIN_CMD_LIST_USE 0x1
+
+/* Admin command group type. */
+#define VIRTIO_ADMIN_GROUP_TYPE_SRIOV 0x1
+
+/* Transitional device admin command. */
+#define VIRTIO_ADMIN_CMD_LEGACY_COMMON_CFG_WRITE 0x2
+#define VIRTIO_ADMIN_CMD_LEGACY_COMMON_CFG_READ 0x3
+#define VIRTIO_ADMIN_CMD_LEGACY_DEV_CFG_WRITE 0x4
+#define VIRTIO_ADMIN_CMD_LEGACY_DEV_CFG_READ 0x5
+#define VIRTIO_ADMIN_CMD_LEGACY_NOTIFY_INFO 0x6
+
+struct __packed virtio_admin_cmd_hdr {
+ __le16 opcode;
+ /*
+ * 1 - SR-IOV
+ * 2-65535 - reserved
+ */
+ __le16 group_type;
+ /* Unused, reserved for future extensions. */
+ __u8 reserved1[12];
+ __le64 group_member_id;
+};
+
+struct __packed virtio_admin_cmd_status {
+ __le16 status;
+ __le16 status_qualifier;
+ /* Unused, reserved for future extensions. */
+ __u8 reserved2[4];
+};
+
+struct __packed virtio_admin_cmd_legacy_wr_data {
+ __u8 offset; /* Starting offset of the register(s) to write. */
+ __u8 reserved[7];
+ __u8 registers[];
+};
+
+struct __packed virtio_admin_cmd_legacy_rd_data {
+ __u8 offset; /* Starting offset of the register(s) to read. */
+};
+
+#define VIRTIO_ADMIN_CMD_NOTIFY_INFO_FLAGS_END 0
+#define VIRTIO_ADMIN_CMD_NOTIFY_INFO_FLAGS_OWNER_DEV 0x1
+#define VIRTIO_ADMIN_CMD_NOTIFY_INFO_FLAGS_OWNER_MEM 0x2
+
+#define VIRTIO_ADMIN_CMD_MAX_NOTIFY_INFO 4
+
+struct __packed virtio_admin_cmd_notify_info_data {
+ __u8 flags; /* 0 = end of list, 1 = owner device, 2 = member device */
+ __u8 bar; /* BAR of the member or the owner device */
+ __u8 padding[6];
+ __le64 offset; /* Offset within bar. */
+};
+
+struct virtio_admin_cmd_notify_info_result {
+ struct virtio_admin_cmd_notify_info_data entries[VIRTIO_ADMIN_CMD_MAX_NOTIFY_INFO];
+};
+
#endif
diff --git a/riscv/include/asm/kvm.h b/riscv/include/asm/kvm.h
index 60d3b21..7499e88 100644
--- a/riscv/include/asm/kvm.h
+++ b/riscv/include/asm/kvm.h
@@ -139,6 +139,33 @@ enum KVM_RISCV_ISA_EXT_ID {
KVM_RISCV_ISA_EXT_ZIHPM,
KVM_RISCV_ISA_EXT_SMSTATEEN,
KVM_RISCV_ISA_EXT_ZICOND,
+ KVM_RISCV_ISA_EXT_ZBC,
+ KVM_RISCV_ISA_EXT_ZBKB,
+ KVM_RISCV_ISA_EXT_ZBKC,
+ KVM_RISCV_ISA_EXT_ZBKX,
+ KVM_RISCV_ISA_EXT_ZKND,
+ KVM_RISCV_ISA_EXT_ZKNE,
+ KVM_RISCV_ISA_EXT_ZKNH,
+ KVM_RISCV_ISA_EXT_ZKR,
+ KVM_RISCV_ISA_EXT_ZKSED,
+ KVM_RISCV_ISA_EXT_ZKSH,
+ KVM_RISCV_ISA_EXT_ZKT,
+ KVM_RISCV_ISA_EXT_ZVBB,
+ KVM_RISCV_ISA_EXT_ZVBC,
+ KVM_RISCV_ISA_EXT_ZVKB,
+ KVM_RISCV_ISA_EXT_ZVKG,
+ KVM_RISCV_ISA_EXT_ZVKNED,
+ KVM_RISCV_ISA_EXT_ZVKNHA,
+ KVM_RISCV_ISA_EXT_ZVKNHB,
+ KVM_RISCV_ISA_EXT_ZVKSED,
+ KVM_RISCV_ISA_EXT_ZVKSH,
+ KVM_RISCV_ISA_EXT_ZVKT,
+ KVM_RISCV_ISA_EXT_ZFH,
+ KVM_RISCV_ISA_EXT_ZFHMIN,
+ KVM_RISCV_ISA_EXT_ZIHINTNTL,
+ KVM_RISCV_ISA_EXT_ZVFH,
+ KVM_RISCV_ISA_EXT_ZVFHMIN,
+ KVM_RISCV_ISA_EXT_ZFA,
KVM_RISCV_ISA_EXT_MAX,
};

@@ -157,9 +184,16 @@ enum KVM_RISCV_SBI_EXT_ID {
KVM_RISCV_SBI_EXT_EXPERIMENTAL,
KVM_RISCV_SBI_EXT_VENDOR,
KVM_RISCV_SBI_EXT_DBCN,
+ KVM_RISCV_SBI_EXT_STA,
KVM_RISCV_SBI_EXT_MAX,
};

+/* SBI STA extension registers for KVM_GET_ONE_REG and KVM_SET_ONE_REG */
+struct kvm_riscv_sbi_sta {
+ unsigned long shmem_lo;
+ unsigned long shmem_hi;
+};
+
/* Possible states for kvm_riscv_timer */
#define KVM_RISCV_TIMER_STATE_OFF 0
#define KVM_RISCV_TIMER_STATE_ON 1
@@ -241,6 +275,12 @@ enum KVM_RISCV_SBI_EXT_ID {
#define KVM_REG_RISCV_VECTOR_REG(n) \
((n) + sizeof(struct __riscv_v_ext_state) / sizeof(unsigned long))

+/* Registers for specific SBI extensions are mapped as type 10 */
+#define KVM_REG_RISCV_SBI_STATE (0x0a << KVM_REG_RISCV_TYPE_SHIFT)
+#define KVM_REG_RISCV_SBI_STA (0x0 << KVM_REG_RISCV_SUBTYPE_SHIFT)
+#define KVM_REG_RISCV_SBI_STA_REG(name) \
+ (offsetof(struct kvm_riscv_sbi_sta, name) / sizeof(unsigned long))
+
/* Device Control API: RISC-V AIA */
#define KVM_DEV_RISCV_APLIC_ALIGN 0x1000
#define KVM_DEV_RISCV_APLIC_SIZE 0x4000
diff --git a/x86/include/asm/kvm.h b/x86/include/asm/kvm.h
index 1a6a1f9..a448d09 100644
--- a/x86/include/asm/kvm.h
+++ b/x86/include/asm/kvm.h
@@ -562,4 +562,7 @@ struct kvm_pmu_event_filter {
/* x86-specific KVM_EXIT_HYPERCALL flags. */
#define KVM_EXIT_HYPERCALL_LONG_MODE BIT(0)

+#define KVM_X86_DEFAULT_VM 0
+#define KVM_X86_SW_PROTECTED_VM 1
+
#endif /* _ASM_X86_KVM_H */
--
2.34.1