diff options
Diffstat (limited to 'src/drivers/intel')
| -rw-r--r-- | src/drivers/intel/fsp2_0/ppi/mp_service_ppi.c | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/src/drivers/intel/fsp2_0/ppi/mp_service_ppi.c b/src/drivers/intel/fsp2_0/ppi/mp_service_ppi.c index 9aef1b6dce..50e35b0e8f 100644 --- a/src/drivers/intel/fsp2_0/ppi/mp_service_ppi.c +++ b/src/drivers/intel/fsp2_0/ppi/mp_service_ppi.c @@ -94,23 +94,10 @@ efi_return_status_t mp_startup_all_cpus(efi_ap_procedure procedure, /* Run on BSP */ procedure(argument); - /* - * Run on APs Serially - * - * FIXME: As per MP service specification, EDK2 is allowed to specify the mode - * in which a 'func' routine should be executed on APs (i.e. execute serially - * or concurrently). - * - * MP service API `StartupAllCPUs` doesn't specify such requirement. - * Hence, running the `CpuCacheInfoCollectCoreAndCacheData` - * (UefiCpuPkg/Library/CpuCacheInfoLib/CpuCacheInfoLib.c#194) - * simultaneously on APs results in a coherency issue (hang while executing `func`) - * due to lack of acquiring a spin lock while accessing common data structure in - * multiprocessor environment. - */ - if (mp_run_on_all_aps((void *)procedure, argument, timeout_usec, false) != - CB_SUCCESS) { - printk(BIOS_DEBUG, "%s: Exit with Failure\n", __func__); + /* Run on APs */ + if (mp_run_on_aps((void *)procedure, argument, + MP_RUN_ON_ALL_CPUS, timeout_usec) != CB_SUCCESS) { + printk(BIOS_ERR, "%s: Exit with Failure\n", __func__); return FSP_NOT_STARTED; } |