From b017b1b27a18af9519a0a18ed731d8d7c8cefa43 Mon Sep 17 00:00:00 2001 From: Laszlo Ersek Date: Tue, 4 Mar 2014 08:03:50 +0000 Subject: OvmfPkg: S3 Suspend: enable creation/saving of an S3 Boot Script "MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf" produces the EFI_S3_SAVE_STATE_PROTOCOL which allows creation and saving of an S3 Boot Script, to be replayed in PEI during S3 Resume. The script contains opcodes and opcode arguments to configure CPU, PCI and IO resources. S3SaveStateDxe relies on the S3BootScriptLib library. The Null implementation is not useful for actually saving the boot script, we need the PiDxeS3BootScriptLib instance. The PiDxeS3BootScriptLib library instance depends on LockBoxLib, implemented for OVMF in one of the previous patches. PiDxeS3BootScriptLib also depends on SmbusLib. For now we opt for the Null instance of the latter. It means that SMBus commands in the boot script will have no effect when interpreted during S3 Resume. This should be fine for OvmfPkg and QEMU. EFI_S3_SAVE_STATE_PROTOCOL [S3SaveStateDxe] S3BootScriptLib [PiDxeS3BootScriptLib] SmbusLib [BaseSmbusLibNull] LockBoxLib [OvmfPkg/Library/LockBoxLib] When the EFI_DXE_SMM_READY_TO_LOCK_PROTOCOL is installed by any DXE driver (purely as a form of notification), the S3SaveStateDxe driver saves the boot script to EfiACPIMemoryNVS, and links it into the LockBox. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek Reviewed-by: Jordan Justen git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15304 6f19259b-4bc3-4df7-8a09-765794883524 --- OvmfPkg/OvmfPkgX64.fdf | 1 + 1 file changed, 1 insertion(+) (limited to 'OvmfPkg/OvmfPkgX64.fdf') diff --git a/OvmfPkg/OvmfPkgX64.fdf b/OvmfPkg/OvmfPkgX64.fdf index c0f99f1a33..2b808dd744 100644 --- a/OvmfPkg/OvmfPkgX64.fdf +++ b/OvmfPkg/OvmfPkgX64.fdf @@ -322,6 +322,7 @@ INF MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf INF OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf INF RuleOverride=ACPITABLE OvmfPkg/AcpiTables/AcpiTables.inf INF OvmfPkg/AcpiS3SaveDxe/AcpiS3SaveDxe.inf +INF MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf INF RuleOverride = BINARY FatBinPkg/EnhancedFatDxe/Fat.inf -- cgit v1.2.3