[xen staging] libxl: add/recover 'rdm_policy' to/from PCI backend in xenstore

[patchbot@xxxxxxx]

commit d8cba539f2d94385fd2d52483d3efec72b080811
Author:     Paul Durrant <pdurrant@xxxxxxxxxx>
AuthorDate: Tue Dec 8 19:30:13 2020 +0000
Commit:     Wei Liu <wl@xxxxxxx>
CommitDate: Tue Dec 15 16:24:23 2020 +0000

    libxl: add/recover 'rdm_policy' to/from PCI backend in xenstore
    
    Other parameters, such as 'msitranslate' and 'permissive' are dealt with
    but 'rdm_policy' appears to be have been completely missed.
    
    Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>
    Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
    Acked-by: Wei Liu <wl@xxxxxxx>
---
 tools/libs/light/libxl_pci.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/tools/libs/light/libxl_pci.c b/tools/libs/light/libxl_pci.c
index 3f85f0d762..2a5a4db976 100644
--- a/tools/libs/light/libxl_pci.c
+++ b/tools/libs/light/libxl_pci.c
@@ -61,9 +61,9 @@ static void libxl_create_pci_backend_device(libxl__gc *gc,
         flexarray_append_pair(back, GCSPRINTF("vdevfn-%d", num), 
GCSPRINTF("%x", pci->vdevfn));
     flexarray_append(back, GCSPRINTF("opts-%d", num));
     flexarray_append(back,
-              GCSPRINTF("msitranslate=%d,power_mgmt=%d,permissive=%d",
-                             pci->msitranslate, pci->power_mgmt,
-                             pci->permissive));
+              
GCSPRINTF("msitranslate=%d,power_mgmt=%d,permissive=%d,rdm_policy=%s",
+                        pci->msitranslate, pci->power_mgmt,
+                        pci->permissive, 
libxl_rdm_reserve_policy_to_string(pci->rdm_policy)));
     flexarray_append_pair(back, GCSPRINTF("state-%d", num), GCSPRINTF("%d", 
XenbusStateInitialising));
 }
 
@@ -2374,6 +2374,9 @@ static int libxl__device_pci_from_xs_be(libxl__gc *gc,
             } else if (!strcmp(p, "permissive")) {
                 p = strtok_r(NULL, ",=", &saveptr);
                 pci->permissive = atoi(p);
+            } else if (!strcmp(p, "rdm_policy")) {
+                p = strtok_r(NULL, ",=", &saveptr);
+                libxl_rdm_reserve_policy_from_string(p, &pci->rdm_policy);
             }
         } while ((p = strtok_r(NULL, ",=", &saveptr)) != NULL);
     }
--
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