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| author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-15 17:25:17 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-15 17:25:17 +0000 |
| commit | a0248b09366c096be88a2fbaaff071b28b5d4ca5 (patch) | |
| tree | 623bc7cf0d2da99e88bf9fc82c2f5b134fa318fb /UefiCpuPkg/ResetVector/Vtf0/README | |
| parent | 424b7c9f8f0b1587210de67baaee235288380c6a (diff) | |
| download | edk2-platforms-a0248b09366c096be88a2fbaaff071b28b5d4ca5.tar.xz | |
UefiCpuPkg VTF0: Add README, remove Makefile
* Add README
* Remove Makefile which is no longer used to build VTF0
Signed-off-by: jljusten
Reviewed-by: geekboy15a
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12355 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'UefiCpuPkg/ResetVector/Vtf0/README')
| -rw-r--r-- | UefiCpuPkg/ResetVector/Vtf0/README | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/UefiCpuPkg/ResetVector/Vtf0/README b/UefiCpuPkg/ResetVector/Vtf0/README new file mode 100644 index 0000000000..22fb0f08e6 --- /dev/null +++ b/UefiCpuPkg/ResetVector/Vtf0/README @@ -0,0 +1,41 @@ +
+=== HOW TO USE VTF0 ===
+
+Add this line to your FDF FV section:
+INF RuleOverride=RESET_VECTOR USE = IA32 UefiCpuPkg/ResetVector/Vtf0/Bin/ResetVector.inf
+(For X64 SEC/PEI change IA32 to X64 => 'USE = X64')
+
+In your FDF FFS file rules sections add:
+[Rule.Common.SEC.RESET_VECTOR]
+ FILE RAW = $(NAMED_GUID) {
+ RAW RAW |.raw
+ }
+
+=== VTF0 Boot Flow ===
+
+1. Transition to IA32 flat mode
+2. Locate BFV (Boot Firmware Volume) by checking every 4kb boundary
+3. Locate SEC image
+4. X64 VTF0 transitions to X64 mode
+5. Call SEC image entry point
+
+== VTF0 SEC input parameters ==
+
+All inputs to SEC image are register based:
+EAX/RAX - Initial value of the EAX register (BIST: Built-in Self Test)
+DI - 'BP': boot-strap processor, or 'AP': application processor
+EBP/RBP - Pointer to the start of the Boot Firmware Volume
+
+=== HOW TO BUILD VTF0 ===
+
+Dependencies:
+* Python 2.5~2.7
+* Nasm with x86-64 support
+
+To rebuild the VTF0 binaries:
+1. Change to VTF0 source dir: UefiCpuPkg/ResetVector/Vtf0
+2. nasm and python should be in executable path
+3. Run this command:
+ python Build.py
+4. Binaries output will be in UefiCpuPkg/ResetVector/Vtf0/Bin
+
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