From f5c0d612966d1ab3e8c2f1d1ae1de9ae2438bbab Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= Date: Wed, 14 Aug 2019 13:02:41 +0300 Subject: intel/smm: Provide common smm_relocation_params MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Pull in all copies of smm_relocation_params structs defined for intel platforms. Pull in all the inlined MSR accessors to the header file. Change-Id: I39c6cffee95433aea1a3c783b869eedfff094413 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/c/coreboot/+/34840 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/include/cpu/intel/smm_reloc.h | 54 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) (limited to 'src/include') diff --git a/src/include/cpu/intel/smm_reloc.h b/src/include/cpu/intel/smm_reloc.h index cb196fcd82a5..bef8d4eed7c5 100644 --- a/src/include/cpu/intel/smm_reloc.h +++ b/src/include/cpu/intel/smm_reloc.h @@ -14,7 +14,29 @@ #ifndef __INTEL_SMM_RELOC_H__ #define __INTEL_SMM_RELOC_H__ +#include #include +#include +#include + +struct smm_relocation_params { + uintptr_t ied_base; + size_t ied_size; + msr_t smrr_base; + msr_t smrr_mask; + msr_t prmrr_base; + msr_t prmrr_mask; + msr_t uncore_prmrr_base; + msr_t uncore_prmrr_mask; + /* + * The smm_save_state_in_msrs field indicates if SMM save state + * locations live in MSRs. This indicates to the CPUs how to adjust + * the SMMBASE and IEDBASE + */ + int smm_save_state_in_msrs; +}; + +extern struct smm_relocation_params smm_reloc_params; struct ied_header { char signature[10]; @@ -42,4 +64,36 @@ void smm_relocation_handler(int cpu, uintptr_t curr_smbase, uintptr_t staggered_ bool cpu_has_alternative_smrr(void); + +#define MSR_PRMRR_PHYS_BASE 0x1f4 +#define MSR_PRMRR_PHYS_MASK 0x1f5 +#define MSR_UNCORE_PRMRR_PHYS_BASE 0x2f4 +#define MSR_UNCORE_PRMRR_PHYS_MASK 0x2f5 + +static inline void write_smrr(struct smm_relocation_params *relo_params) +{ + printk(BIOS_DEBUG, "Writing SMRR. base = 0x%08x, mask=0x%08x\n", + relo_params->smrr_base.lo, relo_params->smrr_mask.lo); + wrmsr(IA32_SMRR_PHYS_BASE, relo_params->smrr_base); + wrmsr(IA32_SMRR_PHYS_MASK, relo_params->smrr_mask); +} + +static inline void write_prmrr(struct smm_relocation_params *relo_params) +{ + printk(BIOS_DEBUG, "Writing PRMRR. base = 0x%08x, mask=0x%08x\n", + relo_params->prmrr_base.lo, relo_params->prmrr_mask.lo); + wrmsr(MSR_PRMRR_PHYS_BASE, relo_params->prmrr_base); + wrmsr(MSR_PRMRR_PHYS_MASK, relo_params->prmrr_mask); +} + +static inline void write_uncore_prmrr(struct smm_relocation_params *relo_params) +{ + printk(BIOS_DEBUG, + "Writing UNCORE_PRMRR. base = 0x%08x, mask=0x%08x\n", + relo_params->uncore_prmrr_base.lo, + relo_params->uncore_prmrr_mask.lo); + wrmsr(MSR_UNCORE_PRMRR_PHYS_BASE, relo_params->uncore_prmrr_base); + wrmsr(MSR_UNCORE_PRMRR_PHYS_MASK, relo_params->uncore_prmrr_mask); +} + #endif -- cgit v1.2.3