diff options
| -rw-r--r-- | src/northbridge/amd/amdk8/acpi.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/northbridge/amd/amdk8/acpi.c b/src/northbridge/amd/amdk8/acpi.c index 10228cfa94..ce49b9021c 100644 --- a/src/northbridge/amd/amdk8/acpi.c +++ b/src/northbridge/amd/amdk8/acpi.c @@ -282,6 +282,17 @@ static void k8acpi_write_pci_data(int dlen, const char *name, int offset) { void k8acpi_write_vars(device_t device) { + /* + * If more than one physical CPU is installed k8acpi_write_vars() + * is called more than once. If we don't prevent it, a SSDT table + * with duplicate variables will cause some ACPI parsers to be + * confused enough to fail. + */ + static uint8_t ssdt_generated = 0; + if (ssdt_generated) + return; + ssdt_generated = 1; + msr_t msr; char pscope[] = "\\_SB.PCI0"; |