Re: [PATCH v6 3/4] conf: introduce dirty_ring_size field

From: Hyman Huang(黄勇) <huangy81(a)chinatelecom.cn&gt; introduce dirty_ring_size in struct "_virDomainDef" to hold the ring size configured by user, and pass dirty_ring_size when building qemu commandline if dirty ring feature enabled. Signed-off-by: Hyman Huang(黄勇) <huangy81(a)chinatelecom.cn&gt; --- src/conf/domain_conf.c | 76 ++++++++++++++++++++++++++++++++++++++++- src/conf/domain_conf.h | 4 +++ src/qemu/qemu_command.c | 3 ++ 3 files changed, 82 insertions(+), 1 deletion(-)

@@ -27884,6 +27949,15 @@ virDomainDefFormatFeatures(virBuffer *buf, def->kvm_features[j])); break; + case VIR_DOMAIN_KVM_DIRTY_RING: + if (def->kvm_features[j] != VIR_TRISTATE_SWITCH_ABSENT) { + virBufferAsprintf(&childBuf, "<%s state='%s' size='%d'/>\n", + virDomainKVMTypeToString(j), + virTristateSwitchTypeToString(def->kvm_features[j]), + def->dirty_ring_size); + } + break; + case VIR_DOMAIN_KVM_LAST: break; }

@@ -2933,6 +2934,9 @@ struct _virDomainDef { should be re-run before starting */ unsigned int scsiBusMaxUnit; + + /* size of dirty ring for each vcpu */ + unsigned int dirty_ring_size; };