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authorMaxim Levitsky <mlevitsk@redhat.com>2021-04-01 16:54:47 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2021-04-17 08:31:03 -0400
commita43b80b782c9f56b3bcc2e5e51261dc3980839ec (patch)
treed168fdc590a9701a7e756729f7ed44ff26f1c25c /arch/s390
parentfa18aca927578f4ae2a01fd588e791d4ea5fe085 (diff)
KVM: s390x: implement KVM_CAP_SET_GUEST_DEBUG2
Define KVM_GUESTDBG_VALID_MASK and use it to implement this capabiity. Compile tested only. Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20210401135451.1004564-6-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/kvm_host.h4
-rw-r--r--arch/s390/kvm/kvm-s390.c3
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 0af3e032a49d..8925f3969478 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -701,6 +701,10 @@ 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 95ef9193f12e..1296fc10f80c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -550,6 +550,9 @@ 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))