From: "Pete Batard" <pete@akeo.ie>
To: devel@edk2.groups.io
Cc: afish@apple.com, lersek@redhat.com, liming.gao@intel.com
Subject: [PATCH v2 1/2] OvmfPkg/PlatformBootManagerLib: Don't update progress if Pcd is 0
Date: Mon, 14 Oct 2019 16:03:10 +0100 [thread overview]
Message-ID: <20191014150311.16740-2-pete@akeo.ie> (raw)
In-Reply-To: <20191014150311.16740-1-pete@akeo.ie>
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2266
Independently of how we decide to address other aspects of the regression
introduced with commit 2de1f611be06ded3a59726a4052a9039be7d459b, it doesn't
make much sense to call for a progress update if PcdPlatformBootTimeOut is
zero.
PcdPlatformBootTimeOut 0, which is the cause of the bug (division by zero)
should be considered to indicate that a platform is not interested in
displaying a progress report, so we alter PlatformBootManagerWaitCallback
to behave that way.
We also change one variable name to make the code more explicit.
Signed-off-by: Pete Batard <pete@akeo.ie>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
---
OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
index 70df6b841acc..8af9b71f18a3 100644
--- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
+++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
@@ -1631,9 +1631,18 @@ PlatformBootManagerWaitCallback (
{
EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION Black;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION White;
- UINT16 Timeout;
+ UINT16 TimeoutInitial;
- Timeout = PcdGet16 (PcdPlatformBootTimeOut);
+ TimeoutInitial = PcdGet16 (PcdPlatformBootTimeOut);
+
+ //
+ // If PcdPlatformBootTimeOut is set to zero, then we consider
+ // that no progress update should be enacted (since we'd only
+ // ever display a one-shot progress of either 0% or 100%).
+ //
+ if (TimeoutInitial == 0) {
+ return;
+ }
Black.Raw = 0x00000000;
White.Raw = 0x00FFFFFF;
@@ -1643,7 +1652,7 @@ PlatformBootManagerWaitCallback (
Black.Pixel,
L"Start boot option",
White.Pixel,
- (Timeout - TimeoutRemain) * 100 / Timeout,
+ (TimeoutInitial - TimeoutRemain) * 100 / TimeoutInitial,
0
);
}
--
2.21.0.windows.1
next prev parent reply other threads:[~2019-10-14 15:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-14 15:03 [PATCH v2 0/2] PlatformBootManagerLib: Don't update progress if Pcd is 0 Pete Batard
2019-10-14 15:03 ` Pete Batard [this message]
2019-10-14 15:33 ` [edk2-devel] [PATCH v2 1/2] OvmfPkg/PlatformBootManagerLib: " Philippe Mathieu-Daudé
2019-10-14 15:03 ` [PATCH v2 2/2] ArmVirtPkg/PlatformBootManagerLib: " Pete Batard
2019-10-14 15:34 ` [edk2-devel] " Philippe Mathieu-Daudé
2019-10-14 18:36 ` [edk2-devel] [PATCH v2 0/2] PlatformBootManagerLib: " Laszlo Ersek
2019-10-16 16:36 ` Laszlo Ersek
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