[PATCH v2 5/9] KVM: s390x: implement KVM_CAP_SET_GUEST_DEBUG2
From: Maxim Levitsky <hidden>
Date: 2021-04-01 18:17:15
Also in:
kvm, kvmarm, linux-doc, linux-s390, lkml
Subsystem:
kernel virtual machine for s390 (kvm/s390), s390 architecture, the rest · Maintainers:
Christian Borntraeger, Janosch Frank, Claudio Imbrenda, Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Linus Torvalds
Define KVM_GUESTDBG_VALID_MASK and use it to implement this capabiity. Compile tested only. Signed-off-by: Maxim Levitsky <redacted> --- arch/s390/include/asm/kvm_host.h | 4 ++++ arch/s390/kvm/kvm-s390.c | 3 +++ 2 files changed, 7 insertions(+)
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 6bcfc5614bbc..a3902b57b825 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h@@ -700,6 +700,10 @@ struct kvm_hw_bp_info_arch { #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) +#define KVM_GUESTDBG_VALID_MASK \ + (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP |\ + KVM_GUESTDBG_USE_HW_BP | KVM_GUESTDBG_EXIT_PENDING) + struct kvm_guestdbg_info_arch { unsigned long cr0; unsigned long cr9;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 2f09e9d7dc95..2049fc8c222a 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c@@ -544,6 +544,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_S390_DIAG318: r = 1; break; + case KVM_CAP_SET_GUEST_DEBUG2: + r = KVM_GUESTDBG_VALID_MASK; + break; case KVM_CAP_S390_HPAGE_1M: r = 0; if (hpage && !kvm_is_ucontrol(kvm))
--
2.26.2
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