diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cpu/amd/agesa/family15tn/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/cpu/amd/agesa/family15tn/model_15_init.c | 16 | ||||
| -rw-r--r-- | src/cpu/x86/smm/smmhandler.S | 8 | ||||
| -rw-r--r-- | src/cpu/x86/smm/smmrelocate.S | 3 | ||||
| -rw-r--r-- | src/include/cpu/amd/amdfam15.h | 2 |
5 files changed, 29 insertions, 1 deletions
diff --git a/src/cpu/amd/agesa/family15tn/Makefile.inc b/src/cpu/amd/agesa/family15tn/Makefile.inc index a5a707167f..19a2f0f298 100644 --- a/src/cpu/amd/agesa/family15tn/Makefile.inc +++ b/src/cpu/amd/agesa/family15tn/Makefile.inc @@ -21,6 +21,7 @@ ramstage-y += chip_name.c ramstage-y += model_15_init.c subdirs-y += ../../mtrr +subdirs-y += ../../smm subdirs-y += ../../../x86/tsc subdirs-y += ../../../x86/lapic subdirs-y += ../../../x86/cache diff --git a/src/cpu/amd/agesa/family15tn/model_15_init.c b/src/cpu/amd/agesa/family15tn/model_15_init.c index f396201181..467a3012df 100644 --- a/src/cpu/amd/agesa/family15tn/model_15_init.c +++ b/src/cpu/amd/agesa/family15tn/model_15_init.c @@ -19,6 +19,7 @@ #include <console/console.h> #include <cpu/x86/msr.h> +#include <cpu/x86/smm.h> #include <cpu/amd/mtrr.h> #include <device/device.h> #include <string.h> @@ -43,6 +44,7 @@ static void model_15_init(device_t dev) u8 i; msr_t msr; int msrno; + unsigned int cpu_idx; #if CONFIG_LOGICAL_CPUS u32 siblings; #endif @@ -110,6 +112,20 @@ static void model_15_init(device_t dev) msr.hi &= ~(1 << (46 - 32)); wrmsr(NB_CFG_MSR, msr); + if (IS_ENABLED(CONFIG_HAVE_SMI_HANDLER)) { + cpu_idx = cpu_info()->index; + printk(BIOS_INFO, "Initializing SMM for CPU %u\n", cpu_idx); + + /* Set SMM base address for this CPU */ + msr = rdmsr(MSR_SMM_BASE); + msr.lo = SMM_BASE - (cpu_idx * 0x400); + wrmsr(MSR_SMM_BASE, msr); + + /* Enable the SMM memory window */ + msr = rdmsr(MSR_SMM_MASK); + msr.lo |= (1 << 0); /* Enable ASEG SMRAM Range */ + wrmsr(MSR_SMM_MASK, msr); + } /* Write protect SMM space with SMMLOCK. */ msr = rdmsr(HWCR_MSR); diff --git a/src/cpu/x86/smm/smmhandler.S b/src/cpu/x86/smm/smmhandler.S index 774088e1f2..484b643017 100644 --- a/src/cpu/x86/smm/smmhandler.S +++ b/src/cpu/x86/smm/smmhandler.S @@ -105,6 +105,14 @@ smm_handler_start: movl (%esi), %ecx shr $24, %ecx + /* This is an ugly hack, and we should find a way to read the CPU index + * without relying on the LAPIC ID. + */ +#if IS_ENABLED(CONFIG_CPU_AMD_AGESA_FAMILY15_TN) + /* LAPIC IDs start from 0x10; map that to the proper core index */ + subl $0x10, %ecx +#endif + /* calculate stack offset by multiplying the APIC ID * by 1024 (0x400), and save that offset in ebp. */ diff --git a/src/cpu/x86/smm/smmrelocate.S b/src/cpu/x86/smm/smmrelocate.S index 71f74e757f..bdc977190b 100644 --- a/src/cpu/x86/smm/smmrelocate.S +++ b/src/cpu/x86/smm/smmrelocate.S @@ -23,7 +23,8 @@ #define __PRE_RAM__ /* On AMD's platforms we can set SMBASE by writing an MSR */ -#if !CONFIG_NORTHBRIDGE_AMD_AMDK8 && !CONFIG_NORTHBRIDGE_AMD_AMDFAM10 +#if !CONFIG_NORTHBRIDGE_AMD_AMDK8 && !CONFIG_NORTHBRIDGE_AMD_AMDFAM10 \ + && !CONFIG_CPU_AMD_AGESA_FAMILY15_TN // FIXME: Is this piece of code southbridge specific, or // can it be cleaned up so this include is not required? diff --git a/src/include/cpu/amd/amdfam15.h b/src/include/cpu/amd/amdfam15.h index 0c2cf7bde7..67e7cee5df 100644 --- a/src/include/cpu/amd/amdfam15.h +++ b/src/include/cpu/amd/amdfam15.h @@ -23,6 +23,8 @@ #include <cpu/x86/msr.h> #define MCI_STATUS 0x00000401 +#define MSR_SMM_BASE 0xC0010111 +#define MSR_SMM_MASK 0xC0010113 #define HWCR_MSR 0xC0010015 #define NB_CFG_MSR 0xC001001f |