diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cpu/intel/haswell/finalize.c | 3 | ||||
| -rw-r--r-- | src/cpu/intel/model_2065x/finalize.c | 7 | ||||
| -rw-r--r-- | src/cpu/intel/model_206ax/finalize.c | 7 | ||||
| -rw-r--r-- | src/include/cpu/x86/msr.h | 49 | ||||
| -rw-r--r-- | src/soc/intel/common/block/cpu/cpulib.c | 2 | ||||
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/msr.h | 2 |
6 files changed, 48 insertions, 22 deletions
diff --git a/src/cpu/intel/haswell/finalize.c b/src/cpu/intel/haswell/finalize.c index 1832e63967..3bf9225a1f 100644 --- a/src/cpu/intel/haswell/finalize.c +++ b/src/cpu/intel/haswell/finalize.c @@ -1,5 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ +#include <types.h> #include <arch/cpu.h> #include <cpu/x86/msr.h> #include "haswell.h" @@ -7,5 +8,5 @@ void intel_cpu_haswell_finalize_smm(void) { /* Lock memory configuration to protect SMM */ - msr_set_bit(MSR_LT_LOCK_MEMORY, 0); + msr_set(MSR_LT_LOCK_MEMORY, BIT(0)); } diff --git a/src/cpu/intel/model_2065x/finalize.c b/src/cpu/intel/model_2065x/finalize.c index d530fba5e7..d19ddf7a34 100644 --- a/src/cpu/intel/model_2065x/finalize.c +++ b/src/cpu/intel/model_2065x/finalize.c @@ -1,5 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ +#include <types.h> #include <arch/cpu.h> #include <cpu/x86/msr.h> #include <cpu/intel/speedstep.h> @@ -13,12 +14,12 @@ void intel_model_2065x_finalize_smm(void) { /* Lock C-State MSR */ - msr_set_bit(MSR_PKG_CST_CONFIG_CONTROL, 15); + msr_set(MSR_PKG_CST_CONFIG_CONTROL, BIT(15)); /* Lock AES-NI only if supported */ if (cpuid_ecx(1) & (1 << 25)) - msr_set_bit(MSR_FEATURE_CONFIG, 0); + msr_set(MSR_FEATURE_CONFIG, BIT(0)); /* Lock TM interrupts - route thermal events to all processors */ - msr_set_bit(MSR_MISC_PWR_MGMT, 22); + msr_set(MSR_MISC_PWR_MGMT, BIT(22)); } diff --git a/src/cpu/intel/model_206ax/finalize.c b/src/cpu/intel/model_206ax/finalize.c index 37fbefdf13..98be012746 100644 --- a/src/cpu/intel/model_206ax/finalize.c +++ b/src/cpu/intel/model_206ax/finalize.c @@ -1,5 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ +#include <types.h> #include <arch/cpu.h> #include <cpu/x86/msr.h> #include "model_206ax.h" @@ -13,11 +14,11 @@ void intel_model_206ax_finalize_smm(void) { /* Lock AES-NI only if supported */ if (cpuid_ecx(1) & (1 << 25)) - msr_set_bit(MSR_FEATURE_CONFIG, 0); + msr_set(MSR_FEATURE_CONFIG, BIT(0)); /* Lock TM interrupts - route thermal events to all processors */ - msr_set_bit(MSR_MISC_PWR_MGMT, 22); + msr_set(MSR_MISC_PWR_MGMT, BIT(22)); /* Lock memory configuration to protect SMM */ - msr_set_bit(MSR_LT_LOCK_MEMORY, 0); + msr_set(MSR_LT_LOCK_MEMORY, BIT(0)); } diff --git a/src/include/cpu/x86/msr.h b/src/include/cpu/x86/msr.h index 3deb133240..058419fd1e 100644 --- a/src/include/cpu/x86/msr.h +++ b/src/include/cpu/x86/msr.h @@ -299,23 +299,46 @@ static inline enum mca_err_code_types mca_err_type(msr_t reg) return MCA_ERRTYPE_UNKNOWN; } -/* Helper for setting single MSR bits */ -static inline void msr_set_bit(unsigned int reg, unsigned int bit) +/** + * Helper for (un)setting MSR bitmasks + * + * @param[in] reg The MSR. + * @param[in] unset Bitmask with ones to the bits to unset from the MSR. + * @param[in] set Bitmask with ones to the bits to set from the MSR. + */ +static inline void msr_unset_and_set(unsigned int reg, uint64_t unset, uint64_t set) { - msr_t msr = rdmsr(reg); - - if (bit < 32) { - if (msr.lo & (1 << bit)) - return; - msr.lo |= 1 << bit; - } else { - if (msr.hi & (1 << (bit - 32))) - return; - msr.hi |= 1 << (bit - 32); - } + msr_t msr; + msr = rdmsr(reg); + msr.lo &= (unsigned int)~unset; + msr.hi &= (unsigned int)~(unset >> 32); + msr.lo |= (unsigned int)set; + msr.hi |= (unsigned int)(set >> 32); wrmsr(reg, msr); } +/** + * Helper for setting MSR bitmasks + * + * @param[in] reg The MSR. + * @param[in] set Bitmask with ones to the bits to set from the MSR. + */ +static inline void msr_set(unsigned int reg, uint64_t set) +{ + msr_unset_and_set(reg, 0, set); +} + +/** + * Helper for unsetting MSR bitmasks + * + * @param[in] reg The MSR. + * @param[in] unset Bitmask with ones to the bits to unset from the MSR. + */ +static inline void msr_unset(unsigned int reg, uint64_t unset) +{ + msr_unset_and_set(reg, unset, 0); +} + #endif /* __ASSEMBLER__ */ #endif /* CPU_X86_MSR_H */ diff --git a/src/soc/intel/common/block/cpu/cpulib.c b/src/soc/intel/common/block/cpu/cpulib.c index cbf9b1b9dd..9092df1796 100644 --- a/src/soc/intel/common/block/cpu/cpulib.c +++ b/src/soc/intel/common/block/cpu/cpulib.c @@ -337,7 +337,7 @@ void mca_configure(void) void cpu_lt_lock_memory(void *unused) { - msr_set_bit(MSR_LT_CONTROL, LT_CONTROL_LOCK_BIT); + msr_set(MSR_LT_CONTROL, LT_CONTROL_LOCK); } int get_valid_prmrr_size(void) diff --git a/src/soc/intel/common/block/include/intelblocks/msr.h b/src/soc/intel/common/block/include/intelblocks/msr.h index 4aa069e068..2ef4561341 100644 --- a/src/soc/intel/common/block/include/intelblocks/msr.h +++ b/src/soc/intel/common/block/include/intelblocks/msr.h @@ -56,7 +56,7 @@ #define POWER_CTL_C1E_MASK (1 << 1) #define MSR_EVICT_CTL 0x2e0 #define MSR_LT_CONTROL 0x2e7 -#define LT_CONTROL_LOCK_BIT (0) +#define LT_CONTROL_LOCK (1 << 0) #define MSR_SGX_OWNEREPOCH0 0x300 #define MSR_SGX_OWNEREPOCH1 0x301 #define SMM_FEATURE_CONTROL_MSR 0x4e0 |