[Xen-changelog] [xen stable-4.11] tools/xl: use libxl_domain_info to get domain type for vcpu-pin

[patchbot@xxxxxxx]

commit 989a2ec4f3ba9343eaeded847513202470d7be1e
Author:     Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>
AuthorDate: Tue Apr 9 13:01:58 2019 +0100
Commit:     Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
CommitDate: Thu May 16 17:13:32 2019 +0100

    tools/xl: use libxl_domain_info to get domain type for vcpu-pin
    
    Parsing the config seems to be an overkill for this particular task
    and the config might simply be absent. Type returned from libxl_domain_info
    should be either LIBXL_DOMAIN_TYPE_HVM or LIBXL_DOMAIN_TYPE_PV but in
    that context distinction between PVH and HVM should be irrelevant.
    
    Signed-off-by: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    (cherry picked from commit 48dab9767d2eb173495707cb1fd8ceaf73604ac1)
    (cherry picked from commit c59579d8319b776ae6243da1999737e2b4737710)
---
 tools/xl/xl_vcpu.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/tools/xl/xl_vcpu.c b/tools/xl/xl_vcpu.c
index c877f2595f..ef995137c9 100644
--- a/tools/xl/xl_vcpu.c
+++ b/tools/xl/xl_vcpu.c
@@ -78,7 +78,6 @@ void apply_global_affinity_masks(libxl_domain_type type,
 
     switch (type) {
     case LIBXL_DOMAIN_TYPE_HVM:
-    case LIBXL_DOMAIN_TYPE_PVH:
         type_mask = &global_hvm_affinity_mask;
         break;
     case LIBXL_DOMAIN_TYPE_PV:
@@ -283,19 +282,15 @@ int main_vcpupin(int argc, char **argv)
 
     /* Only hard affinity matters here */
     if (!ignore_masks) {
-        libxl_domain_config d_config;
+        libxl_dominfo dominfo;
 
-        libxl_domain_config_init(&d_config);
-        rc = libxl_retrieve_domain_configuration(ctx, domid, &d_config);
-        if (rc) {
-            fprintf(stderr, "Could not retrieve domain configuration\n");
-            libxl_domain_config_dispose(&d_config);
+        if (libxl_domain_info(ctx, &dominfo, domid)) {
+            fprintf(stderr, "Could not get domain info\n");
             goto out;
         }
 
-        apply_global_affinity_masks(d_config.b_info.type, hard, 1);
-
-        libxl_domain_config_dispose(&d_config);
+        /* HVM and PVH domains use the same global affinity mask */
+        apply_global_affinity_masks(dominfo.domain_type, hard, 1);
     }
 
     if (force) {
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.11

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