[xen staging] tools/libxl: optimize domain creation skipping domain cpupool move

[patchbot@xxxxxxx]

commit be464973e4565fd9b4999a6eb9db9f469616f07b
Author:     Luca Fancellu <luca.fancellu@xxxxxxx>
AuthorDate: Wed Jun 8 16:59:55 2022 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Jun 8 16:59:55 2022 +0200

    tools/libxl: optimize domain creation skipping domain cpupool move
    
    Commit 92ea9c54fc81 ("arm/dom0less: assign dom0less guests to cpupools")
    introduced a way to start a domain directly on a certain cpupool,
    adding a "cpupool_id" member to struct xen_domctl_createdomain.
    
    This was done to be able to start dom0less guests in different pools than
    cpupool0, but the toolstack can benefit from it because it can now use
    the struct member directly instead of creating the guest in cpupool0
    and then moving it to the target cpupool.
    
    Suggested-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Signed-off-by: Luca Fancellu <luca.fancellu@xxxxxxx>
    Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
    Acked-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
 tools/libs/light/libxl_create.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/tools/libs/light/libxl_create.c b/tools/libs/light/libxl_create.c
index 69ec405858..2339f09e95 100644
--- a/tools/libs/light/libxl_create.c
+++ b/tools/libs/light/libxl_create.c
@@ -633,6 +633,7 @@ int libxl__domain_make(libxl__gc *gc, libxl_domain_config 
*d_config,
             .max_maptrack_frames = b_info->max_maptrack_frames,
             .grant_opts = XEN_DOMCTL_GRANT_version(b_info->max_grant_version),
             .vmtrace_size = ROUNDUP(b_info->vmtrace_buf_kb << 10, 
XC_PAGE_SHIFT),
+            .cpupool_id = info->poolid,
         };
 
         if (info->type != LIBXL_DOMAIN_TYPE_PV) {
@@ -757,13 +758,6 @@ int libxl__domain_make(libxl__gc *gc, libxl_domain_config 
*d_config,
      */
     assert(libxl_domid_valid_guest(*domid));
 
-    ret = xc_cpupool_movedomain(ctx->xch, info->poolid, *domid);
-    if (ret < 0) {
-        LOGED(ERROR, *domid, "domain move fail");
-        rc = ERROR_FAIL;
-        goto out;
-    }
-
     dom_path = libxl__xs_get_dompath(gc, *domid);
     if (!dom_path) {
         rc = ERROR_FAIL;
--
generated by git-patchbot for /home/xen/git/xen.git#staging