[Skiboot] [RFC 11/12] npu2-opencapi: Handle OPAL_UNMAP_PE operation on set_pe() callback

[Frederic Barrat]

In a hot-unplug scenario, the OS will try to unmap the PE. Skiboot
doesn't do anything with the linux PE for opencapi other than being a
mailbox, but at least let's be consistent.

Signed-off-by: Frederic Barrat <fbarrat at linux.ibm.com>
---
 hw/npu2-opencapi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/npu2-opencapi.c b/hw/npu2-opencapi.c
index c9a8410e..dd238235 100644
--- a/hw/npu2-opencapi.c
+++ b/hw/npu2-opencapi.c
@@ -1497,6 +1497,8 @@ static int64_t npu2_opencapi_set_pe(struct phb *phb,
 	 * functions on the device, the OS can define many PEs, we
 	 * only keep one, the OS will handle it.
 	 */
+	if (action == OPAL_UNMAP_PE)
+		pe_num = -1;
 	dev->linux_pe = pe_num;
 	return OPAL_SUCCESS;
 }
-- 
2.21.0