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[PATCH 2/5] efi: only set a console mode if the current one is invalid
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Roger Pau Monne <roger.pau@xxxxxxxxxx>
- Date: Wed, 23 Nov 2022 16:45:21 +0100
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- Cc: marmarek@xxxxxxxxxxxxxxxxxxxxxx, Roger Pau Monne <roger.pau@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>
- Delivery-date: Wed, 23 Nov 2022 15:45:59 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Do not unconditionally set a mode in efi_console_set_mode(), do so
only if the currently set mode is not valid.
Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
xen/common/efi/boot.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c
index db0340c8e2..7e8a8b7857 100644
--- a/xen/common/efi/boot.c
+++ b/xen/common/efi/boot.c
@@ -799,6 +799,11 @@ static void __init efi_console_set_mode(void)
UINTN cols, rows, size;
unsigned int best, i;
+ /* Only set a mode if the current one is not valid. */
+ if ( StdOut->QueryMode(StdOut, StdOut->Mode->Mode, &cols, &rows) ==
+ EFI_SUCCESS )
+ return;
+
for ( i = 0, size = 0, best = StdOut->Mode->Mode;
i < StdOut->Mode->MaxMode; ++i )
{
--
2.37.3
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