Merge tag 'mem-2024-02-06-v3' of https://github.com/davidhildenbrand/qemu into staging

Hi,

"Host Memory Backends" and "Memory devices" queue ("mem"):
- Reintroduce memory region size checks for memory devices; the removal
  lead to some undesired side effects
- Preallocate memory of memory backends in selected configurations
  asynchronously (so we preallocate concurrently), to speed up QEMU
  startup time.

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# gpg: Signature made Tue 06 Feb 2024 07:16:07 GMT
# gpg:                using RSA key 1BD9CAAD735C4C3A460DFCCA4DDE10F700FF835A
# gpg:                issuer "david@redhat.com"
# gpg: Good signature from "David Hildenbrand <david@redhat.com>" [marginal]
# gpg:                 aka "David Hildenbrand <davidhildenbrand@gmail.com>" [full]
# gpg:                 aka "David Hildenbrand <hildenbr@in.tum.de>" [unknown]
# Primary key fingerprint: 1BD9 CAAD 735C 4C3A 460D  FCCA 4DDE 10F7 00FF 835A

* tag 'mem-2024-02-06-v3' of https://github.com/davidhildenbrand/qemu:
  oslib-posix: initialize backend memory objects in parallel
  memory-device: reintroduce memory region size check
  hv-balloon: use get_min_alignment() to express 32 GiB alignment

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/system/vl.c b/system/vl.c
index bb959cbc44..2a0bd08ff1 100644
--- a/system/vl.c
+++ b/system/vl.c
@@ -2013,6 +2013,14 @@ static void qemu_create_late_backends(void)
 
     object_option_foreach_add(object_create_late);
 
+    /*
+     * Wait for any outstanding memory prealloc from created memory
+     * backends to complete.
+     */
+    if (!qemu_finish_async_prealloc_mem(&error_fatal)) {
+        exit(1);
+    }
+
     if (tpm_init() < 0) {
         exit(1);
     }
@@ -3699,6 +3707,7 @@ void qemu_init(int argc, char **argv)
      * over memory-backend-file objects).
      */
     qemu_create_late_backends();
+    phase_advance(PHASE_LATE_BACKENDS_CREATED);
 
     /*
      * Note: creates a QOM object, must run only after global and