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ARM:

Browse source 
* Unwinder implementations for both nVHE modes (classic and
   protected), complete with an overflow stack
 
 * Rework of the sysreg access from userspace, with a complete
   rewrite of the vgic-v3 view to allign with the rest of the
   infrastructure
 
 * Disagregation of the vcpu flags in separate sets to better track
   their use model.
 
 * A fix for the GICv2-on-v3 selftest
 
 * A small set of cosmetic fixes
 
 RISC-V:
 
 * Track ISA extensions used by Guest using bitmap
 
 * Added system instruction emulation framework
 
 * Added CSR emulation framework
 
 * Added gfp_custom flag in struct kvm_mmu_memory_cache
 
 * Added G-stage ioremap() and iounmap() functions
 
 * Added support for Svpbmt inside Guest
 
 s390:
 
 * add an interface to provide a hypervisor dump for secure guests
 
 * improve selftests to use TAP interface
 
 * enable interpretive execution of zPCI instructions (for PCI passthrough)
 
 * First part of deferred teardown
 
 * CPU Topology
 
 * PV attestation
 
 * Minor fixes
 
 x86:
 
 * Permit guests to ignore single-bit ECC errors
 
 * Intel IPI virtualization
 
 * Allow getting/setting pending triple fault with KVM_GET/SET_VCPU_EVENTS
 
 * PEBS virtualization
 
 * Simplify PMU emulation by just using PERF_TYPE_RAW events
 
 * More accurate event reinjection on SVM (avoid retrying instructions)
 
 * Allow getting/setting the state of the speaker port data bit
 
 * Refuse starting the kvm-intel module if VM-Entry/VM-Exit controls are inconsistent
 
 * "Notify" VM exit (detect microarchitectural hangs) for Intel
 
 * Use try_cmpxchg64 instead of cmpxchg64
 
 * Ignore benign host accesses to PMU MSRs when PMU is disabled
 
 * Allow disabling KVM's "MONITOR/MWAIT are NOPs!" behavior
 
 * Allow NX huge page mitigation to be disabled on a per-vm basis
 
 * Port eager page splitting to shadow MMU as well
 
 * Enable CMCI capability by default and handle injected UCNA errors
 
 * Expose pid of vcpu threads in debugfs
 
 * x2AVIC support for AMD
 
 * cleanup PIO emulation
 
 * Fixes for LLDT/LTR emulation
 
 * Don't require refcounted "struct page" to create huge SPTEs
 
 * Miscellaneous cleanups:
 ** MCE MSR emulation
 ** Use separate namespaces for guest PTEs and shadow PTEs bitmasks
 ** PIO emulation
 ** Reorganize rmap API, mostly around rmap destruction
 ** Do not workaround very old KVM bugs for L0 that runs with nesting enabled
 ** new selftests API for CPUID
 
 Generic:
 
 * Fix races in gfn->pfn cache refresh; do not pin pages tracked by the cache
 
 * new selftests API using struct kvm_vcpu instead of a (vm, id) tuple
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "Quite a large pull request due to a selftest API overhaul and some
  patches that had come in too late for 5.19.

  ARM:

   - Unwinder implementations for both nVHE modes (classic and
     protected), complete with an overflow stack

   - Rework of the sysreg access from userspace, with a complete rewrite
     of the vgic-v3 view to allign with the rest of the infrastructure

   - Disagregation of the vcpu flags in separate sets to better track
     their use model.

   - A fix for the GICv2-on-v3 selftest

   - A small set of cosmetic fixes

  RISC-V:

   - Track ISA extensions used by Guest using bitmap

   - Added system instruction emulation framework

   - Added CSR emulation framework

   - Added gfp_custom flag in struct kvm_mmu_memory_cache

   - Added G-stage ioremap() and iounmap() functions

   - Added support for Svpbmt inside Guest

  s390:

   - add an interface to provide a hypervisor dump for secure guests

   - improve selftests to use TAP interface

   - enable interpretive execution of zPCI instructions (for PCI
     passthrough)

   - First part of deferred teardown

   - CPU Topology

   - PV attestation

   - Minor fixes

  x86:

   - Permit guests to ignore single-bit ECC errors

   - Intel IPI virtualization

   - Allow getting/setting pending triple fault with
     KVM_GET/SET_VCPU_EVENTS

   - PEBS virtualization

   - Simplify PMU emulation by just using PERF_TYPE_RAW events

   - More accurate event reinjection on SVM (avoid retrying
     instructions)

   - Allow getting/setting the state of the speaker port data bit

   - Refuse starting the kvm-intel module if VM-Entry/VM-Exit controls
     are inconsistent

   - "Notify" VM exit (detect microarchitectural hangs) for Intel

   - Use try_cmpxchg64 instead of cmpxchg64

   - Ignore benign host accesses to PMU MSRs when PMU is disabled

   - Allow disabling KVM's "MONITOR/MWAIT are NOPs!" behavior

   - Allow NX huge page mitigation to be disabled on a per-vm basis

   - Port eager page splitting to shadow MMU as well

   - Enable CMCI capability by default and handle injected UCNA errors

   - Expose pid of vcpu threads in debugfs

   - x2AVIC support for AMD

   - cleanup PIO emulation

   - Fixes for LLDT/LTR emulation

   - Don't require refcounted "struct page" to create huge SPTEs

   - Miscellaneous cleanups:
      - MCE MSR emulation
      - Use separate namespaces for guest PTEs and shadow PTEs bitmasks
      - PIO emulation
      - Reorganize rmap API, mostly around rmap destruction
      - Do not workaround very old KVM bugs for L0 that runs with nesting enabled
      - new selftests API for CPUID

  Generic:

   - Fix races in gfn->pfn cache refresh; do not pin pages tracked by
     the cache

   - new selftests API using struct kvm_vcpu instead of a (vm, id)
     tuple"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (606 commits)
  selftests: kvm: set rax before vmcall
  selftests: KVM: Add exponent check for boolean stats
  selftests: KVM: Provide descriptive assertions in kvm_binary_stats_test
  selftests: KVM: Check stat name before other fields
  KVM: x86/mmu: remove unused variable
  RISC-V: KVM: Add support for Svpbmt inside Guest/VM
  RISC-V: KVM: Use PAGE_KERNEL_IO in kvm_riscv_gstage_ioremap()
  RISC-V: KVM: Add G-stage ioremap() and iounmap() functions
  KVM: Add gfp_custom flag in struct kvm_mmu_memory_cache
  RISC-V: KVM: Add extensible CSR emulation framework
  RISC-V: KVM: Add extensible system instruction emulation framework
  RISC-V: KVM: Factor-out instruction emulation into separate sources
  RISC-V: KVM: move preempt_disable() call in kvm_arch_vcpu_ioctl_run
  RISC-V: KVM: Make kvm_riscv_guest_timer_init a void function
  RISC-V: KVM: Fix variable spelling mistake
  RISC-V: KVM: Improve ISA extension by using a bitmap
  KVM, x86/mmu: Fix the comment around kvm_tdp_mmu_zap_leafs()
  KVM: SVM: Dump Virtual Machine Save Area (VMSA) to klog
  KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT
  KVM: x86: Do not block APIC write for non ICR registers
  ...
This commit is contained in:
Linus Torvalds 2022-08-04 14:59:54 -07:00
commit 7c5c3a6177
290 changed files with 14743 additions and 8637 deletions
Download patch file Download diff file Expand all files Collapse all files

108
include/uapi/linux/kvm.h
View file

@ -270,6 +270,8 @@ struct kvm_xen_exit {
#define KVM_EXIT_X86_BUS_LOCK 33
#define KVM_EXIT_XEN 34
#define KVM_EXIT_RISCV_SBI 35
#define KVM_EXIT_RISCV_CSR 36
#define KVM_EXIT_NOTIFY 37
/* For KVM_EXIT_INTERNAL_ERROR */
/* Emulate instruction failed. */
@ -496,6 +498,18 @@ struct kvm_run {
unsigned long args[6];
unsigned long ret[2];
} riscv_sbi;
/* KVM_EXIT_RISCV_CSR */
struct {
unsigned long csr_num;
unsigned long new_value;
unsigned long write_mask;
unsigned long ret_value;
} riscv_csr;
/* KVM_EXIT_NOTIFY */
struct {
#define KVM_NOTIFY_CONTEXT_INVALID (1 << 0)
__u32 flags;
} notify;
/* Fix the size of the union. */
char padding[256];
};
@ -1157,6 +1171,12 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_VM_TSC_CONTROL 214
#define KVM_CAP_SYSTEM_EVENT_DATA 215
#define KVM_CAP_ARM_SYSTEM_SUSPEND 216
#define KVM_CAP_S390_PROTECTED_DUMP 217
#define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218
#define KVM_CAP_X86_NOTIFY_VMEXIT 219
#define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220
#define KVM_CAP_S390_ZPCI_OP 221
#define KVM_CAP_S390_CPU_TOPOLOGY 222
#ifdef KVM_CAP_IRQ_ROUTING
@ -1660,6 +1680,55 @@ struct kvm_s390_pv_unp {
__u64 tweak;
};
enum pv_cmd_dmp_id {
KVM_PV_DUMP_INIT,
KVM_PV_DUMP_CONFIG_STOR_STATE,
KVM_PV_DUMP_COMPLETE,
KVM_PV_DUMP_CPU,
};
struct kvm_s390_pv_dmp {
__u64 subcmd;
__u64 buff_addr;
__u64 buff_len;
__u64 gaddr; /* For dump storage state */
__u64 reserved[4];
};
enum pv_cmd_info_id {
KVM_PV_INFO_VM,
KVM_PV_INFO_DUMP,
};
struct kvm_s390_pv_info_dump {
__u64 dump_cpu_buffer_len;
__u64 dump_config_mem_buffer_per_1m;
__u64 dump_config_finalize_len;
};
struct kvm_s390_pv_info_vm {
__u64 inst_calls_list[4];
__u64 max_cpus;
__u64 max_guests;
__u64 max_guest_addr;
__u64 feature_indication;
};
struct kvm_s390_pv_info_header {
__u32 id;
__u32 len_max;
__u32 len_written;
__u32 reserved;
};
struct kvm_s390_pv_info {
struct kvm_s390_pv_info_header header;
union {
struct kvm_s390_pv_info_dump dump;
struct kvm_s390_pv_info_vm vm;
};
};
enum pv_cmd_id {
KVM_PV_ENABLE,
KVM_PV_DISABLE,
@ -1668,6 +1737,8 @@ enum pv_cmd_id {
KVM_PV_VERIFY,
KVM_PV_PREP_RESET,
KVM_PV_UNSHARE_ALL,
KVM_PV_INFO,
KVM_PV_DUMP,
};
struct kvm_pv_cmd {
@ -2119,4 +2190,41 @@ struct kvm_stats_desc {
/* Available with KVM_CAP_XSAVE2 */
#define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave)
/* Available with KVM_CAP_S390_PROTECTED_DUMP */
#define KVM_S390_PV_CPU_COMMAND _IOWR(KVMIO, 0xd0, struct kvm_pv_cmd)
/* Available with KVM_CAP_X86_NOTIFY_VMEXIT */
#define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0)
#define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1)
/* Available with KVM_CAP_S390_ZPCI_OP */
#define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op)
struct kvm_s390_zpci_op {
/* in */
__u32 fh; /* target device */
__u8 op; /* operation to perform */
__u8 pad[3];
union {
/* for KVM_S390_ZPCIOP_REG_AEN */
struct {
__u64 ibv; /* Guest addr of interrupt bit vector */
__u64 sb; /* Guest addr of summary bit */
__u32 flags;
__u32 noi; /* Number of interrupts */
__u8 isc; /* Guest interrupt subclass */
__u8 sbo; /* Offset of guest summary bit vector */
__u16 pad;
} reg_aen;
__u64 reserved[8];
} u;
};
/* types for kvm_s390_zpci_op->op */
#define KVM_S390_ZPCIOP_REG_AEN 0
#define KVM_S390_ZPCIOP_DEREG_AEN 1
/* flags for kvm_s390_zpci_op->u.reg_aen.flags */
#define KVM_S390_ZPCIOP_REGAEN_HOST (1 << 0)
#endif /* __LINUX_KVM_H */

7
include/uapi/linux/vfio_zdev.h
View file

@ -29,6 +29,9 @@ struct vfio_device_info_cap_zpci_base {
__u16 fmb_length; /* Measurement Block Length (in bytes) */
__u8 pft; /* PCI Function Type */
__u8 gid; /* PCI function group ID */
/* End of version 1 */
__u32 fh; /* PCI function handle */
/* End of version 2 */
};
/**
@ -47,6 +50,10 @@ struct vfio_device_info_cap_zpci_group {
__u16 noi; /* Maximum number of MSIs */
__u16 maxstbl; /* Maximum Store Block Length */
__u8 version; /* Supported PCI Version */
/* End of version 1 */
__u8 reserved;
__u16 imaxstbl; /* Maximum Interpreted Store Block Length */
/* End of version 2 */
};
/**