github/kata-containers
1
0
Fork 1
mirror of https://github.com/kata-containers/kata-containers.git synced 2025-04-29 20:24:31 +00:00
Code Issues Projects Releases Wiki Activity

qmp: add checks for the CPU toplogy

Browse Source 
Support for function isSocketIDSupported, isThreadIDSupported and isDieIDSupported.
The functions check if the cpu driver and the qemu version support the
id parameter.

Fixes: #102

Signed-off-by: Alice Frosi <afrosi@de.ibm.com>
This commit is contained in:
Alice Frosi 2019-07-22 13:28:30 +02:00
parent e894e7ad00
commit e0cf9d5c14
1 changed files with 27 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
qemu/qmp.go
View File

@ -1158,6 +1158,30 @@ func (q *QMP) ExecutePCIVFIOMediatedDeviceAdd(ctx context.Context, devID, sysfsd
return q.executeCommand(ctx, "device_add", args, nil) return q.executeCommand(ctx, "device_add", args, nil)
} }
// isSocketIDSupported returns if the cpu driver supports the socket id option
func isSocketIDSupported(driver string) bool {
if driver == "host-s390x-cpu" || driver == "host-powerpc64-cpu" {
return false
}
return true
}
// isThreadIDSupported returns if the cpu driver supports the thread id option
func isThreadIDSupported(driver string) bool {
if driver == "host-s390x-cpu" || driver == "host-powerpc64-cpu" {
return false
}
return true
}
// isDieIDSupported returns if the cpu driver and the qemu version support the die id option
func (q *QMP) isDieIDSupported(driver string) bool {
if (q.version.Major > 4 || (q.version.Major == 4 && q.version.Minor >= 1)) && driver == "host-x86_64-cpu" {
return true
}
return false
}
// ExecuteCPUDeviceAdd adds a CPU to a QEMU instance using the device_add command. // ExecuteCPUDeviceAdd adds a CPU to a QEMU instance using the device_add command.
// driver is the CPU model, cpuID must be a unique ID to identify the CPU, socketID is the socket number within // driver is the CPU model, cpuID must be a unique ID to identify the CPU, socketID is the socket number within
// node/board the CPU belongs to, coreID is the core number within socket the CPU belongs to, threadID is the // node/board the CPU belongs to, coreID is the core number within socket the CPU belongs to, threadID is the
@ -1170,15 +1194,15 @@ func (q *QMP) ExecuteCPUDeviceAdd(ctx context.Context, driver, cpuID, socketID,
"core-id": coreID, "core-id": coreID,
} }
if socketID != "" { if socketID != "" && isSocketIDSupported(driver) {
args["socket-id"] = socketID args["socket-id"] = socketID
} }
if threadID != "" { if threadID != "" && isThreadIDSupported(driver) {
args["thread-id"] = threadID args["thread-id"] = threadID
} }
if q.version.Major > 4 || (q.version.Major == 4 && q.version.Minor >= 1) { if q.isDieIDSupported(driver) {
if dieID != "" { if dieID != "" {
args["die-id"] = dieID args["die-id"] = dieID
} }