[Qemu-devel] [PATCH v2 13/15] qmp: Expose manual_dirty_log_protect via "query-kvm"

[Peter Xu <peterx@redhat.com>]

Expose the new capability via "query-kvm" QMP command too so we know
whether that's turned on on the source VM when we want.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
 accel/kvm/kvm-all.c  | 5 +++++
 include/sysemu/kvm.h | 2 ++
 qapi/misc.json       | 6 +++++-
 qmp.c                | 1 +
 4 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 062bf8b5b0..c79d6b51e2 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -169,6 +169,11 @@ int kvm_memcrypt_encrypt_data(uint8_t *ptr, uint64_t len)
     return 1;
 }
 
+bool kvm_manual_dirty_log_protect_enabled(void)
+{
+    return kvm_state && kvm_state->manual_dirty_log_protect;
+}
+
 /* Must be with slots_lock held */
 static KVMSlot *kvm_get_free_slot(KVMMemoryListener *kml)
 {
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index a6d1cd190f..30757f1425 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -547,4 +547,6 @@ int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source);
 int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target);
 struct ppc_radix_page_info *kvm_get_radix_page_info(void);
 int kvm_get_max_memslots(void);
+bool kvm_manual_dirty_log_protect_enabled(void);
+
 #endif
diff --git a/qapi/misc.json b/qapi/misc.json
index 8b3ca4fdd3..ce7a76755a 100644
--- a/qapi/misc.json
+++ b/qapi/misc.json
@@ -253,9 +253,13 @@
 #
 # @present: true if KVM acceleration is built into this executable
 #
+# @manual-dirty-log-protect: true if manual dirty log protect is enabled
+#
 # Since: 0.14.0
 ##
-{ 'struct': 'KvmInfo', 'data': {'enabled': 'bool', 'present': 'bool'} }
+{ 'struct': 'KvmInfo', 'data':
+  {'enabled': 'bool', 'present': 'bool',
+   'manual-dirty-log-protect': 'bool' } }
 
 ##
 # @query-kvm:
diff --git a/qmp.c b/qmp.c
index b92d62cd5f..047bef032e 100644
--- a/qmp.c
+++ b/qmp.c
@@ -73,6 +73,7 @@ KvmInfo *qmp_query_kvm(Error **errp)
 
     info->enabled = kvm_enabled();
     info->present = kvm_available();
+    info->manual_dirty_log_protect = kvm_manual_dirty_log_protect_enabled();
 
     return info;
 }
-- 
2.17.1