On 02/16/15 03:06, Jordan Justen wrote:
> Before we launch the QEMU kernel, we should signal the ReadyToBoot
> event.
> 
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Jordan Justen <[email protected]>
> ---
>  OvmfPkg/Library/PlatformBdsLib/PlatformBdsLib.inf | 1 +
>  OvmfPkg/Library/PlatformBdsLib/QemuKernel.c       | 6 ++++++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/OvmfPkg/Library/PlatformBdsLib/PlatformBdsLib.inf 
> b/OvmfPkg/Library/PlatformBdsLib/PlatformBdsLib.inf
> index d4f5faf..f0c3fb4 100644
> --- a/OvmfPkg/Library/PlatformBdsLib/PlatformBdsLib.inf
> +++ b/OvmfPkg/Library/PlatformBdsLib/PlatformBdsLib.inf
> @@ -51,6 +51,7 @@
>    QemuFwCfgLib
>    LoadLinuxLib
>    QemuBootOrderLib
> +  UefiLib
>  
>  [Pcd]
>    gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdLogoFile
> diff --git a/OvmfPkg/Library/PlatformBdsLib/QemuKernel.c 
> b/OvmfPkg/Library/PlatformBdsLib/QemuKernel.c
> index 47ebed9..41a786a 100644
> --- a/OvmfPkg/Library/PlatformBdsLib/QemuKernel.c
> +++ b/OvmfPkg/Library/PlatformBdsLib/QemuKernel.c
> @@ -19,6 +19,7 @@
>  #include <Library/MemoryAllocationLib.h>
>  #include <Library/QemuFwCfgLib.h>
>  #include <Library/UefiBootServicesTableLib.h>
> +#include <Library/UefiLib.h>
>  
>  
>  EFI_STATUS
> @@ -143,6 +144,11 @@ TryRunningQemuKernel (
>      goto FreeAndReturn;
>    }
>  
> +  //
> +  // Signal the EVT_SIGNAL_READY_TO_BOOT event
> +  //
> +  EfiSignalEventReadyToBoot();
> +
>    Status = LoadLinux (KernelBuf, SetupBuf);
>  
>  FreeAndReturn:
> 

I've been thinking about where to signal the event group actually. I
would have preferred to signal it more closely to the actual deed,
somewhere inside LoadLinuxLib, when fewer things could fail after signaling.

But "IntelFrameworkModulePkg/Library/GenericBdsLib/BdsBoot.c" also does
some other stuff between signaling and LoadImage(). (And, it uses, the
exact same function to signal the event group; even the comment is
identical.)

So I guess it's okay.

Reviewed-by: Laszlo Ersek <[email protected]>

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