[PATCH v3 04/19] accel/kvm: Fix handling of conversion ranges with multiple MMIO holes

[Michael Roth <michael.roth@amd.com>]

The current handling will properly handle MMIO checks for holes anchored
at the beginning of the conversion range, but misses subsequent holes.
The current handle_memory_hole() helper already processes all MMIO
ranges up to and including the sections found at each iteration, so
handle this by simply calling handle_memory_hole() for each additional
section/sub-range.

Fixes: c5d9425ef4da ("kvm/tdx: Don't complain when converting vMMIO region to shared")
Signed-off-by: Michael Roth <michael.roth@amd.com>
---
 accel/kvm/kvm-all.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index f0a79c9bda..2dfd14c257 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -3493,7 +3493,12 @@ int kvm_convert_memory(hwaddr start, hwaddr size, bool to_private)
         ret = handle_memory_hole(&section, to_private, start, &skip);
         if (ret || skip) {
             memory_region_unref(section.mr);
-            break;
+            if (ret) {
+                break;
+            }
+            size -= section_end - start;
+            start = section_end;
+            continue;
         }
 
         ret = kvm_convert_section(&section, to_private);
-- 
2.43.0