[PATCH v2 2/9] KVM: introduce KVM_CAP_SET_GUEST_DEBUG2

Maxim Levitsky mlevitsk at redhat.com
Thu Apr 1 14:54:44 BST 2021


This capability will allow the user to know which KVM_GUESTDBG_* bits
are supported.

Signed-off-by: Maxim Levitsky <mlevitsk at redhat.com>
---
 Documentation/virt/kvm/api.rst | 3 +++
 include/uapi/linux/kvm.h       | 1 +
 2 files changed, 4 insertions(+)

diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index 38e327d4b479..9778b2434c03 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -3357,6 +3357,9 @@ indicating the number of supported registers.
 For ppc, the KVM_CAP_PPC_GUEST_DEBUG_SSTEP capability indicates whether
 the single-step debug event (KVM_GUESTDBG_SINGLESTEP) is supported.
 
+Also when supported, KVM_CAP_SET_GUEST_DEBUG2 capability indicates the
+supported KVM_GUESTDBG_* bits in the control field.
+
 When debug events exit the main run loop with the reason
 KVM_EXIT_DEBUG with the kvm_debug_exit_arch part of the kvm_run
 structure containing architecture specific debug information.
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index f6afee209620..727010788eff 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1078,6 +1078,7 @@ struct kvm_ppc_resize_hpt {
 #define KVM_CAP_DIRTY_LOG_RING 192
 #define KVM_CAP_X86_BUS_LOCK_EXIT 193
 #define KVM_CAP_PPC_DAWR1 194
+#define KVM_CAP_SET_GUEST_DEBUG2 195
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
-- 
2.26.2




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