diff --git a/edk2-OvmfPkg-disable-dynamic-mmio-window-rhel-only.patch b/edk2-OvmfPkg-disable-dynamic-mmio-window-rhel-only.patch
new file mode 100644
index 0000000..1f06b3a
--- /dev/null
+++ b/edk2-OvmfPkg-disable-dynamic-mmio-window-rhel-only.patch
@@ -0,0 +1,33 @@
+From 5722005baa03df51b9376f05274981524e513d93 Mon Sep 17 00:00:00 2001
+From: Gerd Hoffmann <kraxel@redhat.com>
+Date: Thu, 2 Mar 2023 12:01:36 +0100
+Subject: [PATCH] OvmfPkg: disable dynamic mmio window (rhel only)
+
+RH-Author: Gerd Hoffmann <kraxel@redhat.com>
+RH-MergeRequest: 29: OvmfPkg: disable dynamic mmio window (rhel only)
+RH-Bugzilla: 2174605
+RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
+RH-Commit: [1/1] a1faf2d01025e5f5be7dbc29af1b0b57631d6230 (kraxel/centos-edk2)
+
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+---
+ OvmfPkg/Library/PlatformInitLib/MemDetect.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/OvmfPkg/Library/PlatformInitLib/MemDetect.c b/OvmfPkg/Library/PlatformInitLib/MemDetect.c
+index b8feae4309..55e02417e4 100644
+--- a/OvmfPkg/Library/PlatformInitLib/MemDetect.c
++++ b/OvmfPkg/Library/PlatformInitLib/MemDetect.c
+@@ -617,7 +617,8 @@ PlatformDynamicMmioWindow (
+   AddrSpace = LShiftU64 (1, PlatformInfoHob->PhysMemAddressWidth);
+   MmioSpace = LShiftU64 (1, PlatformInfoHob->PhysMemAddressWidth - 3);
+ 
+-  if ((PlatformInfoHob->PcdPciMmio64Size < MmioSpace) &&
++  if (FALSE /* disable for RHEL-9.2, libvirt is not ready yet */ &&
++      (PlatformInfoHob->PcdPciMmio64Size < MmioSpace) &&
+       (PlatformInfoHob->PcdPciMmio64Base + MmioSpace < AddrSpace))
+   {
+     DEBUG ((DEBUG_INFO, "%a: using dynamic mmio window\n", __func__));
+-- 
+2.39.1
+
diff --git a/edk2.spec b/edk2.spec
index 6ecfac6..5f547de 100644
--- a/edk2.spec
+++ b/edk2.spec
@@ -16,7 +16,7 @@ ExclusiveArch: x86_64 aarch64
 
 Name:       edk2
 Version:    %{GITDATE}git%{GITCOMMIT}
-Release:    7%{?dist}
+Release:    8%{?dist}
 Summary:    UEFI firmware for 64-bit virtual machines
 License:    BSD-2-Clause-Patent and OpenSSL and MIT
 URL:        http://www.tianocore.org
@@ -86,6 +86,8 @@ Patch37: edk2-Revert-ArmVirtPkg-ArmVirtQemu-enable-initial-ID-map-.patch
 Patch38: edk2-rh-openssl-add-crypto-bn-rsa_sup_mul.c-to-file-list.patch
 # For bz#2162307 - Broken GRUB output on a serial console
 Patch39: edk2-Revert-MdeModulePkg-TerminalDxe-add-other-text-resol.patch
+# For bz#2174605 - [EDK2] disable dynamic mmio window
+Patch40: edk2-OvmfPkg-disable-dynamic-mmio-window-rhel-only.patch
 
 
 # python3-devel and libuuid-devel are required for building tools.
@@ -391,6 +393,11 @@ install -m 0644 \
 
 
 %changelog
+* Fri Mar 10 2023 Miroslav Rezanina <mrezanin@redhat.com> - 20221207gitfff6d81270b5-8
+- edk2-OvmfPkg-disable-dynamic-mmio-window-rhel-only.patch [bz#2174605]
+- Resolves: bz#2174605
+  ([EDK2] disable dynamic mmio window)
+
 * Tue Feb 21 2023 Miroslav Rezanina <mrezanin@redhat.com> - 20221207gitfff6d81270b5-7
 - edk2-Revert-MdeModulePkg-TerminalDxe-add-other-text-resol.patch [bz#2162307]
 - Resolves: bz#2162307