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| author | Marc Jones <marcj303@gmail.com> | 2018-08-15 23:57:28 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-08-17 21:10:04 +0000 |
| commit | 24462e65076372dd15cc6587a04fc2c49a9afe5a (patch) | |
| tree | fcafe6825d3f908d6c4d5737d512079a30a5b3b8 /src | |
| parent | e17ec3e2e84a8e7cd3f19fb6774356684ae6f25f (diff) | |
| download | coreboot-24462e65076372dd15cc6587a04fc2c49a9afe5a.tar.xz | |
x86/acpigen: Fix ACPI _ROM method
Fix the following Error:
FAILED [LOW] AMLAsmASL_MSG_SERIALIZED_REQUIRED: Test 1, Assembler remark in line
142
Line | AML source
--------------------------------------------------------------------------------
00139|
00140| Scope (\_SB.PCI0.IGFX)
00141| {
00142| Method (_ROM, 2, NotSerialized) // _ROM: Read-Only Memory
| ^
| Remark 2120: Control Method should be made Serialized (due to creation of named objects within)
00143| {
00144| OperationRegion (ROMS, SystemMemory, 0xCD520000, 0xFE00)
00145| Field (ROMS, AnyAcc, NoLock, Preserve)
================================================================================
ADVICE: (for Remark #2120, ASL_MSG_SERIALIZED_REQUIRED): A named object is
created inside a non-serialized method - this method should be serialized. It is
possible that one thread enters the method and blocks and then a second thread
also executes the method, ending up in two attempts to create the object and
causing a failure.
Use the acpigen_write_method_serialized() to correct the error.
BUG=b:112476331
TEST=Run FWTS.
Change-Id: I145c3c3103efb4a02b4e02dd177f4bf50a2c7b3e
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/28124
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/x86/acpigen.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/arch/x86/acpigen.c b/src/arch/x86/acpigen.c index f73ace298e..e10d3077b2 100644 --- a/src/arch/x86/acpigen.c +++ b/src/arch/x86/acpigen.c @@ -1454,7 +1454,7 @@ void acpigen_write_rom(void *bios, const size_t length) ASSERT(length) /* Method (_ROM, 2, NotSerialized) */ - acpigen_write_method("_ROM", 2); + acpigen_write_method_serialized("_ROM", 2); /* OperationRegion("ROMS", SYSTEMMEMORY, current, length) */ struct opregion opreg = OPREGION("ROMS", SYSTEMMEMORY, |