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KVM: X86: Declare KVM_CAP_SET_GUEST_DEBUG properly
KVM_CAP_SET_GUEST_DEBUG should be supported for x86 however it's not declared as supported. My wild guess is that userspaces like QEMU are using "#ifdef KVM_CAP_SET_GUEST_DEBUG" to check for the capability instead, but that could be wrong because the compilation host may not be the runtime host. The userspace might still want to keep the old "#ifdef" though to not break the guest debug on old kernels. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20200505154750.126300-1-peterx@redhat.com> [Do the same for PPC and s390. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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3 changed files with 3 additions and 0 deletions
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@ -521,6 +521,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
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case KVM_CAP_IOEVENTFD:
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case KVM_CAP_DEVICE_CTRL:
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case KVM_CAP_IMMEDIATE_EXIT:
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case KVM_CAP_SET_GUEST_DEBUG:
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r = 1;
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break;
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case KVM_CAP_PPC_GUEST_DEBUG_SSTEP:
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@ -545,6 +545,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
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case KVM_CAP_S390_AIS:
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case KVM_CAP_S390_AIS_MIGRATION:
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case KVM_CAP_S390_VCPU_RESETS:
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case KVM_CAP_SET_GUEST_DEBUG:
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r = 1;
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break;
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case KVM_CAP_S390_HPAGE_1M:
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@ -3372,6 +3372,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
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case KVM_CAP_GET_MSR_FEATURES:
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case KVM_CAP_MSR_PLATFORM_INFO:
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case KVM_CAP_EXCEPTION_PAYLOAD:
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case KVM_CAP_SET_GUEST_DEBUG:
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r = 1;
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break;
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case KVM_CAP_SYNC_REGS:
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