diff options
| author | Michal Simek <[email protected]> | 2026-03-18 15:24:52 +0100 |
|---|---|---|
| committer | Heinrich Schuchardt <[email protected]> | 2026-04-17 08:04:43 +0200 |
| commit | 0c3eb097d9e827e21fdde7e6379f1a396db41da6 (patch) | |
| tree | 475e15a20550c93435d12fd0a48f30c8e539f988 /lib | |
| parent | 353166279c32216697025b80df83fc260155251d (diff) | |
efi_loader: Allow disabling ANSI console queries via Kconfig
Commit 4cb724364030 ("efi_loader: Disable ANSI output for tests")
introduced efi_console_set_ansi() to suppress ANSI escape sequences
during unit tests. Extend this mechanism to be configurable via a new
Kconfig option CONFIG_EFI_CONSOLE_DISABLE_ANSI.
When CONFIG_EFI_CONSOLE_DISABLE_ANSI is enabled,
efi_console_set_ansi(false) is called at the start of
efi_setup_console_size(). This prevents query_console_serial() from
sending ANSI escape sequences to the terminal, using default 25x80
dimensions instead. This is useful for platforms where the serial
console cannot handle ANSI queries.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Ilias Apalodimas <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/efi_loader/Kconfig | 11 | ||||
| -rw-r--r-- | lib/efi_loader/efi_console.c | 3 |
2 files changed, 14 insertions, 0 deletions
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig index b5f81e0ff53..bae98e07d23 100644 --- a/lib/efi_loader/Kconfig +++ b/lib/efi_loader/Kconfig @@ -576,6 +576,17 @@ config EFI_EBBR_2_1_CONFORMANCE help Enabling this option adds the EBBRv2.1 conformance entry to the ECPT UEFI table. +config EFI_CONSOLE_DISABLE_ANSI + bool "Disable ANSI escape sequence queries for console size" + help + Select this option to disable ANSI escape sequence queries for + detecting serial console size. When enabled, + efi_setup_console_size() will not send ANSI escape sequences to + the terminal and will use default 25x80 dimensions instead. + This is useful for platforms where the serial console cannot + properly handle ANSI queries, causing boot delays or garbled + output. + config EFI_SCROLL_ON_CLEAR_SCREEN bool "Avoid overwriting previous output on clear screen" help diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c index 068d1a0a7b7..a798d5604a3 100644 --- a/lib/efi_loader/efi_console.c +++ b/lib/efi_loader/efi_console.c @@ -365,6 +365,9 @@ void efi_setup_console_size(void) int rows = 25, cols = 80; int ret = -ENODEV; + if (IS_ENABLED(CONFIG_EFI_CONSOLE_DISABLE_ANSI)) + efi_console_set_ansi(false); + if (IS_ENABLED(CONFIG_VIDEO)) ret = query_vidconsole(&rows, &cols); if (ret) { |