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OvmfPkg: create a separate PlatformDebugLibIoPort instance for SEC

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The next patch will want to add a global variable to
PlatformDebugLibIoPort, but this is not suitable for the SEC
phase, because SEC runs from read-only flash.  The solution is
to have two library instances, one for SEC and another
for all other firmware phases.  This patch adds the "plumbing"
for the SEC library instance, separating the INF files and
moving the constructor to a separate C source file.

Contributed-under: TianoCore Contribution Agreement 1.1
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jordan Justen (Intel address) <jordan.l.justen@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Paolo Bonzini
2017-11-16 21:30:59 +01:00
committed by Laszlo Ersek
parent 6dead8d5af
commit c9eb56e5fd
8 changed files with 119 additions and 19 deletions
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15
OvmfPkg/Library/PlatformDebugLibIoPort/DebugLib.c
View File

@@ -28,21 +28,6 @@
//
#define MAX_DEBUG_MESSAGE_LENGTH 0x100
/**
This constructor function does not have to do anything.
@retval RETURN_SUCCESS The constructor always returns RETURN_SUCCESS.
**/
RETURN_STATUS
EFIAPI
PlatformDebugLibIoPortConstructor (
VOID
)
{
return RETURN_SUCCESS;
}
/**
Prints a debug message to the debug output device if the specified error level is enabled.