diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/intel/haswell/smmrelocate.c | 50 |
1 files changed, 13 insertions, 37 deletions
diff --git a/src/cpu/intel/haswell/smmrelocate.c b/src/cpu/intel/haswell/smmrelocate.c index e3b9c38d59..1eb6f68d5d 100644 --- a/src/cpu/intel/haswell/smmrelocate.c +++ b/src/cpu/intel/haswell/smmrelocate.c @@ -48,10 +48,8 @@ #define PRMRR_SUPPORTED (1 << 12) struct smm_relocation_params { - u32 smram_base; - u32 smram_size; - u32 ied_base; - u32 ied_size; + uintptr_t ied_base; + size_t ied_size; msr_t smrr_base; msr_t smrr_mask; msr_t prmrr_base; @@ -212,22 +210,11 @@ void smm_relocation_handler(int cpu, uintptr_t curr_smbase, } } -static u32 northbridge_get_base_reg(struct device *dev, int reg) +static void fill_in_relocation_params(struct smm_relocation_params *params) { - u32 value; + uintptr_t tseg_base; + size_t tseg_size; - value = pci_read_config32(dev, reg); - /* Base registers are at 1MiB granularity. */ - value &= ~((1 << 20) - 1); - return value; -} - -static void fill_in_relocation_params(struct device *dev, - struct smm_relocation_params *params) -{ - u32 tseg_size; - u32 tsegmb; - u32 bgsm; u32 prmrr_base; u32 prmrr_size; int phys_bits; @@ -242,25 +229,16 @@ static void fill_in_relocation_params(struct device *dev, * SMRAM range as well as the IED range. However, the SMRAM available * to the handler is 4MiB since the IEDRAM lives TSEGMB + 4MiB. */ - tsegmb = northbridge_get_base_reg(dev, TSEG); - bgsm = northbridge_get_base_reg(dev, BGSM); - tseg_size = bgsm - tsegmb; - - params->smram_base = tsegmb; - params->smram_size = 4 << 20; - params->ied_base = tsegmb + params->smram_size; - params->ied_size = tseg_size - params->smram_size; - - /* Adjust available SMM handler memory size. */ - params->smram_size -= CONFIG_SMM_RESERVED_SIZE; + smm_region(&tseg_base, &tseg_size); /* SMRR has 32-bits of valid address aligned to 4KiB. */ - params->smrr_base.lo = (params->smram_base & rmask) | MTRR_TYPE_WRBACK; + params->smrr_base.lo = (tseg_base & rmask) | MTRR_TYPE_WRBACK; params->smrr_base.hi = 0; - params->smrr_mask.lo = (~(tseg_size - 1) & rmask) - | MTRR_PHYS_MASK_VALID; + params->smrr_mask.lo = (~(tseg_size - 1) & rmask) | MTRR_PHYS_MASK_VALID; params->smrr_mask.hi = 0; + smm_subregion(SMM_SUBREGION_CHIPSET, ¶ms->ied_base, ¶ms->ied_size); + /* The PRMRR and UNCORE_PRMRR are at IEDBASE + 2MiB */ prmrr_base = (params->ied_base + (2 << 20)) & rmask; prmrr_size = params->ied_size - (2 << 20); @@ -310,16 +288,14 @@ static void setup_ied_area(struct smm_relocation_params *params) void smm_info(uintptr_t *perm_smbase, size_t *perm_smsize, size_t *smm_save_state_size) { - struct device *dev = pcidev_on_root(0, 0); - printk(BIOS_DEBUG, "Setting up SMI for CPU\n"); - fill_in_relocation_params(dev, &smm_reloc_params); + fill_in_relocation_params(&smm_reloc_params); + + smm_subregion(SMM_SUBREGION_HANDLER, perm_smbase, perm_smsize); setup_ied_area(&smm_reloc_params); - *perm_smbase = smm_reloc_params.smram_base; - *perm_smsize = smm_reloc_params.smram_size; *smm_save_state_size = sizeof(em64t101_smm_state_save_area_t); } |