RHEL >= 9 and compatible distros like Rocky >= 9 will not boot using
the default qemu CPU.  You will see an error at boot:

  Fatal glibc error: CPU does not support x86-64-v2

Instead you need to use -cpu host.

In commit f28757c6d1 ("convert_linux: set "gcaps_default_cpu = false"
for x86_64 RHEL-9.0+ guests") we fixed this specifically for RHEL >= 9.

This commit extends the same fix to all RHEL family distros.

Updates: commit f28757c6d100060c65212ea55cfa59d308dcb850
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2166619
Reported-by: Ming Xie
Thanks: Laszlo Ersek
---
 convert/convert_linux.ml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/convert/convert_linux.ml b/convert/convert_linux.ml
index e20cafa551..460cbff0ed 100644
--- a/convert/convert_linux.ml
+++ b/convert/convert_linux.ml
@@ -201,9 +201,9 @@ let convert (g : G.guestfs) source inspect i_firmware 
keep_serial_console _ =
 
     (* RHEL >= 9.0 on x86_64 requires the processor to support the "x86-64-v2"
      * microarchitecture level, which the default QEMU VCPU model does not
-     * satisfy.  Refer to RHBZ#2076013.
+     * satisfy.  Refer to RHBZ#2076013 RHBZ#2166619.
      *)
-    let default_cpu_suffices = inspect.i_distro <> "rhel" ||
+    let default_cpu_suffices = family <> `RHEL_family ||
                                inspect.i_arch <> "x86_64" ||
                                inspect.i_major_version < 9 in
 
-- 
2.39.0

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