diff options
| author | James Bottomley <JBottomley@Parallels.com> | 2013-01-09 09:25:53 +0000 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-01-09 09:25:53 +0000 |
| commit | 0ac83f86a46e6e92a6c32d610d48d93c169727c4 (patch) | |
| tree | 88519f7697a1441e7bd0048ace9a1a10eab93b9f | |
| parent | ad8b51aa834db1dc3c9903e0659245c2de8c8d3e (diff) | |
| download | efitools-0ac83f86a46e6e92a6c32d610d48d93c169727c4.tar.gz | |
console, PreLoader: add console reset
The console may be ill defined, add a reset to mode 0 (which is required to be
present) to fix this.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | PreLoader.c | 2 | ||||
| -rw-r--r-- | include/console.h | 2 | ||||
| -rw-r--r-- | lib/console.c | 11 |
3 files changed, 15 insertions, 0 deletions
diff --git a/PreLoader.c b/PreLoader.c index 123d4b9..7813f48 100644 --- a/PreLoader.c +++ b/PreLoader.c @@ -25,6 +25,8 @@ efi_main (EFI_HANDLE image, EFI_SYSTEM_TABLE *systab) InitializeLib(image, systab); + console_reset(); + status = security_policy_install(); if (status != EFI_SUCCESS) { console_error(L"Failed to install override security policy", diff --git a/include/console.h b/include/console.h index ac05ee3..4f720d3 100644 --- a/include/console.h +++ b/include/console.h @@ -14,4 +14,6 @@ void console_error(CHAR16 *err, EFI_STATUS); void console_alertbox(CHAR16 **title); +int +console_reset(void); #define NOSEL 0x7fffffff diff --git a/lib/console.c b/lib/console.c index 93b22c0..a9bb32b 100644 --- a/lib/console.c +++ b/lib/console.c @@ -373,3 +373,14 @@ console_error(CHAR16 *err, EFI_STATUS status) console_alertbox(err_arr); } + +int +console_reset(void) +{ + SIMPLE_TEXT_OUTPUT_INTERFACE *co = ST->ConOut; + + uefi_call_wrapper(co->Reset, 2, co, TRUE); + /* set mode 0 - required to be 80x25 */ + uefi_call_wrapper(co->SetMode, 2, co, 0); + uefi_call_wrapper(co->ClearScreen, 1, co); +} |