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| author | Michael Niewöhner <foss@mniewoehner.de> | 2019-10-22 23:05:06 +0200 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2019-11-04 19:25:02 +0000 |
| commit | 7736bfc443a913a9cde46406bcfc38015ec71f47 (patch) | |
| tree | 5b107551301bbaadc538b0c2ac7c52125462beb3 /src/soc/intel/common/block/include/intelblocks | |
| parent | e75a64f822931a5fbdd80f20c4d168a5c346e01a (diff) | |
| download | coreboot-7736bfc443a913a9cde46406bcfc38015ec71f47.tar.xz | |
soc/intel/sgx: convert SGX and PRMRR devicetree options to Kconfig
The devicetree is not made for user-choosable options, thus introduce
Kconfig options for both SGX and the corresponding PRMRR size.
The PRMRR size Kconfig has been implemented as a maximum value. At
runtime the final PRMRR size gets selected by checking the supported
values in MSR_PRMRR_VALID_CONFIG and trying to select the value nearest
to the chosen one.
When "Maximum" is chosen, the highest possibly value from the MSR gets
used. When a too strict limit is set, coreboot will die, printing an
error message.
Tested successfully on X11SSM-F
Change-Id: I5f08e85898304bba6680075ca5d6bce26aef9a4d
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35799
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/soc/intel/common/block/include/intelblocks')
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/cpulib.h | 4 | ||||
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/msr.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/cpulib.h b/src/soc/intel/common/block/include/intelblocks/cpulib.h index 1aa88e156d..a422094b26 100644 --- a/src/soc/intel/common/block/include/intelblocks/cpulib.h +++ b/src/soc/intel/common/block/include/intelblocks/cpulib.h @@ -18,6 +18,7 @@ #define SOC_INTEL_COMMON_BLOCK_CPULIB_H #include <stdint.h> +#include <stddef.h> /* * Set PERF_CTL MSR (0x199) P_Req with @@ -164,4 +165,7 @@ void mca_configure(void); /* Lock chipset memory registers to protect SMM */ void cpu_lt_lock_memory(void *unused); +/* Get the a supported PRMRR size in bytes with respect users choice */ +int get_prmrr_size(void); + #endif /* SOC_INTEL_COMMON_BLOCK_CPULIB_H */ diff --git a/src/soc/intel/common/block/include/intelblocks/msr.h b/src/soc/intel/common/block/include/intelblocks/msr.h index 3e67fd779d..8902d0992f 100644 --- a/src/soc/intel/common/block/include/intelblocks/msr.h +++ b/src/soc/intel/common/block/include/intelblocks/msr.h @@ -64,6 +64,7 @@ #define MSR_PRMRR_PHYS_MASK 0x1f5 #define PRMRR_PHYS_MASK_LOCK (1 << 10) #define PRMRR_PHYS_MASK_VALID (1 << 11) +#define MSR_PRMRR_VALID_CONFIG 0x1fb #define MSR_POWER_CTL 0x1fc #define POWER_CTL_C1E_MASK (1 << 1) #define MSR_EVICT_CTL 0x2e0 |