diff options
| author | Stefan Reinauer <stepan@coresystems.de> | 2010-12-18 23:29:37 +0000 |
|---|---|---|
| committer | Stefan Reinauer <stepan@openbios.org> | 2010-12-18 23:29:37 +0000 |
| commit | cadc54583877db65f33d2db11088d5fae1b77b74 (patch) | |
| tree | 86377962deb6e6b1faa2093828ff7cb3e127120b /src/southbridge/intel/i82801gx/smi.c | |
| parent | 405721d45c8f7cd58c2466e43df8c2aee6f8e714 (diff) | |
SMM for AMD K8 Part 1/2
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6201 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/intel/i82801gx/smi.c')
| -rw-r--r-- | src/southbridge/intel/i82801gx/smi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801gx/smi.c b/src/southbridge/intel/i82801gx/smi.c index 39d5c4dca2..95ec1129a3 100644 --- a/src/southbridge/intel/i82801gx/smi.c +++ b/src/southbridge/intel/i82801gx/smi.c @@ -318,8 +318,17 @@ static void smm_relocate(void) outb(0x00, 0xb2); } +static int smm_handler_copied = 0; + static void smm_install(void) { + /* The first CPU running this gets to copy the SMM handler. But not all + * of them. + */ + if (smm_handler_copied) + return; + smm_handler_copied = 1; + /* enable the SMM memory window */ pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM, D_OPEN | G_SMRAME | C_BASE_SEG); |