edk2/0009-ArmVirtPkg-silence-DEBUG_VERBOSE-0x00400000-in-QemuR.patch

From 33b60bfb25647368c761ae9d875c481086e147ce Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Wed, 27 Jan 2016 03:05:18 +0100
Subject: [PATCH] ArmVirtPkg: silence DEBUG_VERBOSE (0x00400000) in
 QemuRamfbDxe (RH only)

Notes about the RHEL-8.3/20200603-ca407c7246bf [edk2-stable202005] ->
RHEL-8.5/20210520-e1999b264f1f [edk2-stable202105] rebase:

- no change

Notes about the RHEL-8.2/20190904-37eef91017ad [edk2-stable201908] ->
RHEL-8.3/20200603-ca407c7246bf [edk2-stable202005] rebase:

- no change

Notes about the RHEL-8.1/20190308-89910a39dcfd [edk2-stable201903] ->
RHEL-8.2/20190904-37eef91017ad [edk2-stable201908] rebase:

- The previous version of this patch (downstream commit 76b4ac28e975)
  caused a regression (RHBZ#1714446), which was fixed up in downstream
  commit 5a216abaa737 ("ArmVirtPkg: silence DEBUG_VERBOSE masking
  ~0x00400000 in QemuRamfbDxe (RH only)", 2019-08-05).

  Squash the fixup into the original patch. Fuse the commit messages.
  (Acked-by tags are not preserved, lest we confuse ourselves while
  reviewing this rebase.)

Notes about the RHEL-8.0/20180508-ee3198e672e2 ->
RHEL-8.1/20190308-89910a39dcfd rebase:

- new patch, due to upstream commit c64688f36a8b ("ArmVirtPkg: add
  QemuRamfbDxe", 2018-06-14)

QemuRamfbDxe uses FrameBufferLib. The FrameBufferBltLib instance added in
commit b1ca386074bd ("MdeModulePkg: Add FrameBufferBltLib library
instance") logs many messages on the VERBOSE level; for example, a normal
boot with ArmVirtQemu[Kernel] can produce 500+ "VideoFill" messages,
dependent on the progress bar, when the VERBOSE bit is set in
PcdDebugPrintErrorLevel.

Clear the VERBOSE bit without touching other bits -- those other bits
differ between the "silent" and "verbose" builds, so we can't set them as
constants.

QemuRamfbDxe itself doesn't log anything at the VERBOSE level, so we lose
none of its messages, with the VERBOSE bit clear.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
(cherry picked from commit 76b4ac28e975bd63c25db903a1d42c47b38cc756)
Reported-by: Andrew Jones <drjones@redhat.com>
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Philippe Mathieu-Daude <philmd@redhat.com>
(cherry picked from commit 5a216abaa737195327235e37563b18a6bf2a74dc)
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
(cherry picked from commit e5b8152bced2364a1ded0926dbba4d65e23e3f84)
(cherry picked from commit e7f57f154439c1c18ea5030b01f8d7bc492698b2)
---
 ArmVirtPkg/ArmVirtQemu.dsc       | 5 ++++-
 ArmVirtPkg/ArmVirtQemuKernel.dsc | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/ArmVirtPkg/ArmVirtQemu.dsc b/ArmVirtPkg/ArmVirtQemu.dsc
index 181265057e..216b5a09cc 100644
--- a/ArmVirtPkg/ArmVirtQemu.dsc
+++ b/ArmVirtPkg/ArmVirtQemu.dsc
@@ -547,7 +547,10 @@
   #
   # Video support
   #
-  OvmfPkg/QemuRamfbDxe/QemuRamfbDxe.inf
+  OvmfPkg/QemuRamfbDxe/QemuRamfbDxe.inf {
+    <PcdsFixedAtBuild>
+      gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|($(DEBUG_PRINT_ERROR_LEVEL)) & 0xFFBFFFFF
+  }
   OvmfPkg/VirtioGpuDxe/VirtioGpu.inf
   OvmfPkg/PlatformDxe/Platform.inf
 
diff --git a/ArmVirtPkg/ArmVirtQemuKernel.dsc b/ArmVirtPkg/ArmVirtQemuKernel.dsc
index 668a65ba64..5f07ed4dcc 100644
--- a/ArmVirtPkg/ArmVirtQemuKernel.dsc
+++ b/ArmVirtPkg/ArmVirtQemuKernel.dsc
@@ -447,7 +447,10 @@
   #
   # Video support
   #
-  OvmfPkg/QemuRamfbDxe/QemuRamfbDxe.inf
+  OvmfPkg/QemuRamfbDxe/QemuRamfbDxe.inf {
+    <PcdsFixedAtBuild>
+      gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|($(DEBUG_PRINT_ERROR_LEVEL)) & 0xFFBFFFFF
+  }
   OvmfPkg/VirtioGpuDxe/VirtioGpu.inf
   OvmfPkg/PlatformDxe/Platform.inf