linux

iv/linux

History

Linus Torvalds 71d7b52cc3 ARM:

* Large set of FP/SVE fixes for pKVM, addressing the fallout
   from the per-CPU data rework and making sure that the host
   is not involved in the FP/SVE switching any more
 
 * Allow FEAT_BTI to be enabled with NV now that FEAT_PAUTH
   is completely supported
 
 * Fix for the respective priorities of Failed PAC, Illegal
   Execution state and Instruction Abort exceptions
 
 * Fix the handling of AArch32 instruction traps failing their
   condition code, which was broken by the introduction of
   ESR_EL2.ISS2
 
 * Allow vcpus running in AArch32 state to be restored in
   System mode
 
 * Fix AArch32 GPR restore that would lose the 64 bit state
   under some conditions
 
 RISC-V:
 
 * No need to use mask when hart-index-bits is 0
 
 * Fix incorrect reg_subtype labels in kvm_riscv_vcpu_set_reg_isa_ext()
 
 x86:
 
 * Fixes and debugging help for the #VE sanity check.  Also disable
   it by default, even for CONFIG_DEBUG_KERNEL, because it was found
   to trigger spuriously (most likely a processor erratum as the
   exact symptoms vary by generation).
 
 * Avoid WARN() when two NMIs arrive simultaneously during an NMI-disabled
   situation (GIF=0 or interrupt shadow) when the processor supports
   virtual NMI.  While generally KVM will not request an NMI window
   when virtual NMIs are supported, in this case it *does* have to
   single-step over the interrupt shadow or enable the STGI intercept,
   in order to deliver the latched second NMI.
 
 * Drop support for hand tuning APIC timer advancement from userspace.
   Since we have adaptive tuning, and it has proved to work well,
   drop the module parameter for manual configuration and with it a
   few stupid bugs that it had.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "This is dominated by a couple large series for ARM and x86
  respectively, but apart from that things are calm.

  ARM:

   - Large set of FP/SVE fixes for pKVM, addressing the fallout from the
     per-CPU data rework and making sure that the host is not involved
     in the FP/SVE switching any more

   - Allow FEAT_BTI to be enabled with NV now that FEAT_PAUTH is
     completely supported

   - Fix for the respective priorities of Failed PAC, Illegal Execution
     state and Instruction Abort exceptions

   - Fix the handling of AArch32 instruction traps failing their
     condition code, which was broken by the introduction of
     ESR_EL2.ISS2

   - Allow vcpus running in AArch32 state to be restored in System mode

   - Fix AArch32 GPR restore that would lose the 64 bit state under some
     conditions

  RISC-V:

   - No need to use mask when hart-index-bits is 0

   - Fix incorrect reg_subtype labels in
     kvm_riscv_vcpu_set_reg_isa_ext()

  x86:

   - Fixes and debugging help for the #VE sanity check.

     Also disable it by default, even for CONFIG_DEBUG_KERNEL, because
     it was found to trigger spuriously (most likely a processor erratum
     as the exact symptoms vary by generation).

   - Avoid WARN() when two NMIs arrive simultaneously during an
     NMI-disabled situation (GIF=0 or interrupt shadow) when the
     processor supports virtual NMI.

     While generally KVM will not request an NMI window when virtual
     NMIs are supported, in this case it *does* have to single-step over
     the interrupt shadow or enable the STGI intercept, in order to
     deliver the latched second NMI.

   - Drop support for hand tuning APIC timer advancement from userspace.

     Since we have adaptive tuning, and it has proved to work well, drop
     the module parameter for manual configuration and with it a few
     stupid bugs that it had"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (32 commits)
  KVM: x86/mmu: Don't save mmu_invalidate_seq after checking private attr
  KVM: arm64: Ensure that SME controls are disabled in protected mode
  KVM: arm64: Refactor CPACR trap bit setting/clearing to use ELx format
  KVM: arm64: Consolidate initializing the host data's fpsimd_state/sve in pKVM
  KVM: arm64: Eagerly restore host fpsimd/sve state in pKVM
  KVM: arm64: Allocate memory mapped at hyp for host sve state in pKVM
  KVM: arm64: Specialize handling of host fpsimd state on trap
  KVM: arm64: Abstract set/clear of CPTR_EL2 bits behind helper
  KVM: arm64: Fix prototype for __sve_save_state/__sve_restore_state
  KVM: arm64: Reintroduce __sve_save_state
  KVM: x86: Drop support for hand tuning APIC timer advancement from userspace
  KVM: SEV-ES: Delegate LBR virtualization to the processor
  KVM: SEV-ES: Disallow SEV-ES guests when X86_FEATURE_LBRV is absent
  KVM: SEV-ES: Prevent MSR access post VMSA encryption
  RISC-V: KVM: Fix incorrect reg_subtype labels in kvm_riscv_vcpu_set_reg_isa_ext function
  RISC-V: KVM: No need to use mask when hart-index-bit is 0
  KVM: arm64: nv: Expose BTI and CSV_frac to a guest hypervisor
  KVM: arm64: nv: Fix relative priorities of exceptions generated by ERETAx
  KVM: arm64: AArch32: Fix spurious trapping of conditional instructions
  KVM: arm64: Allow AArch32 PSTATE.M to be restored as System mode
  ...

2024-06-05 08:43:41 -07:00

alpha

mseal: wire up mseal syscall

2024-05-23 19:40:26 -07:00

arc

bpf-for-netdev

2024-05-27 16:26:30 -07:00

arm

mseal: wire up mseal syscall

2024-05-23 19:40:26 -07:00

arm64

KVM: arm64: Ensure that SME controls are disabled in protected mode