i386/pc: handle unitialized mr in pc_get_cxl_range_end()

Remove pc_get_cxl_range_end() dependency on the CXL memory region,
and replace with one that does not require the CXL host_mr to determine
the start of CXL start.

This in preparation to allow pc_pci_hole64_start() to be called early
in pc_memory_init(), handle CXL memory region end when its underlying
memory region isn't yet initialized.

Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Message-Id: <20220719170014.27028-8-joao.m.martins@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>

0 files changed, 0 insertions, 0 deletions