agent: acquire memory hotplug probe info via GetGuestDetails

In order to support memory hotplug via probe interface in kata-runtime, firstly, we need to verify whether guest kernel is capable of that. Fixes: kata-containers#1149 Signed-off-by: Penny Zheng <[email protected]>
Pennyzct · Mar 13, 2019 · 2b37247 · 2b37247
1 parent ffbae64
commit 2b37247
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/virtcontainers/sandbox.go b/virtcontainers/sandbox.go
@@ -401,7 +401,8 @@ func createAssets(ctx context.Context, sandboxConfig *SandboxConfig) error {
 
 func (s *Sandbox) getAndStoreGuestDetails() error {
 	guestDetailRes, err := s.agent.getGuestDetails(&grpc.GuestDetailsRequest{
-		MemBlockSize: true,
+		MemBlockSize:    true,
+		MemHotplugProbe: true,
 	})
 	if err != nil {
 		return err
@@ -412,6 +413,7 @@ func (s *Sandbox) getAndStoreGuestDetails() error {
 		if guestDetailRes.AgentDetails != nil {
 			s.seccompSupported = guestDetailRes.AgentDetails.SupportsSeccomp
 		}
+		s.state.GuestMemoryHotplugProbe = guestDetailRes.SupportMemHotplugProbe
 
 		if err = s.store.Store(store.State, s.state); err != nil {
 			return err

diff --git a/virtcontainers/types/sandbox.go b/virtcontainers/types/sandbox.go
@@ -47,6 +47,9 @@ type State struct {
 	// GuestMemoryBlockSizeMB is the size of memory block of guestos
 	GuestMemoryBlockSizeMB uint32 `json:"guestMemoryBlockSize"`
 
+	// GuestMemoryHotplugProbe determines whether guest kernel supports memory hotplug probe interface
+	GuestMemoryHotplugProbe bool `json:"guestMemoryHotplugProbe"`
+
 	// CgroupPath is the cgroup hierarchy where sandbox's processes
 	// including the hypervisor are placed.
 	CgroupPath string `json:"cgroupPath,omitempty"`