Merge branch kvm-arm64/idregs-6.12 into kvmarm/fixes

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* kvm-arm64/idregs-6.12:
  : .
  : Make some fields of ID_AA64DFR0_EL1 and ID_AA64PFR1_EL1
  : writable from userspace, so that a VMM can influence the
  : set of guest-visible features.
  :
  : - for ID_AA64DFR0_EL1: DoubleLock, WRPs, PMUVer and DebugVer
  :   are writable (courtesy of Shameer Kolothum)
  :
  : - for ID_AA64PFR1_EL1: BT, SSBS, CVS2_frac are writable
  :   (courtesy of Shaoqin Huang)
  : .
  KVM: selftests: aarch64: Add writable test for ID_AA64PFR1_EL1
  KVM: arm64: Allow userspace to change ID_AA64PFR1_EL1
  KVM: arm64: Use kvm_has_feat() to check if FEAT_SSBS is advertised to the guest
  KVM: arm64: Disable fields that KVM doesn't know how to handle in ID_AA64PFR1_EL1
  KVM: arm64: Make the exposed feature bits in AA64DFR0_EL1 writable from userspace

Signed-off-by: Marc Zyngier <maz@kernel.org>

...

This commit is contained in:

Marc Zyngier 2024-10-08 10:39:27 +01:00

parent a1d402abf8 dc9b5d7e0b

commit 9b7c3dd596

3 changed files with 55 additions and 11 deletions

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12

arch/arm64/kvm/hypercalls.c

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38

arch/arm64/kvm/sys_regs.c

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16

tools/testing/selftests/kvm/aarch64/set_id_regs.c

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