diff options
| author | Subrata Banik <subratabanik@google.com> | 2022-01-07 13:40:19 +0000 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2022-01-19 09:57:47 +0000 |
| commit | 56ab8e2aae25efc839daeb56d5922e66d2680aec (patch) | |
| tree | 2790032028d9ddba711fe08a3eaab3105d571acd /src/soc/intel/xeon_sp | |
| parent | 6ac5dc2ca6a6b09d1b0156c2db6aa1385ccaf13e (diff) | |
soc/intel/common/cpu: Use SoC overrides to get CPU privilege level
This patch implements a SoC overrides to check CPU privilege level
as the MSR is not consistent across platforms.
For example: On APL/GLK/DNV, it's MSR 0x120 and CNL onwards it's MSR
0x151.
BUG=b:211573253, b:211950520
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I515f0a3548bc5d6250e30f963d46f28f3c1b90b3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60900
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/soc/intel/xeon_sp')
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/cpu.c | 6 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/skx/cpu.c | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/cpu.c b/src/soc/intel/xeon_sp/cpx/cpu.c index ba417a7060..07c2db7bbf 100644 --- a/src/soc/intel/xeon_sp/cpx/cpu.c +++ b/src/soc/intel/xeon_sp/cpx/cpu.c @@ -32,6 +32,12 @@ static const void *microcode_patch; static const config_t *chip_config = NULL; +bool cpu_soc_is_in_untrusted_mode(void) +{ + /* IA_UNTRUSTED_MODE is not supported in Cooper Lake */ + return false; +} + static void xeon_configure_mca(void) { msr_t msr; diff --git a/src/soc/intel/xeon_sp/skx/cpu.c b/src/soc/intel/xeon_sp/skx/cpu.c index fcdb2d7ea0..c29952916a 100644 --- a/src/soc/intel/xeon_sp/skx/cpu.c +++ b/src/soc/intel/xeon_sp/skx/cpu.c @@ -20,6 +20,12 @@ static const config_t *chip_config = NULL; +bool cpu_soc_is_in_untrusted_mode(void) +{ + /* IA_UNTRUSTED_MODE is not supported in Skylake */ + return false; +} + static void xeon_configure_mca(void) { msr_t msr; |