d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

x86: add bits definitions for SRBDS mitigation control.

Browse Source 
See https://software.intel.com/security-software-guidance/insights/deep-dive-special-register-buffer-data-sampling

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25221
This commit is contained in:
Konstantin Belousov 2020-06-12 22:12:57 +00:00
parent 510b525fa5
commit 958d257ed5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=362129
2 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sys/x86/include/specialreg.h
View File

@ -477,6 +477,7 @@
#define CPUID_STDEXT3_AVX5124FMAPS 0x00000008
#define CPUID_STDEXT3_FSRM 0x00000010
#define CPUID_STDEXT3_AVX512VP2INTERSECT 0x00000100
#define CPUID_STDEXT3_MCUOPT 0x00000200
#define CPUID_STDEXT3_MD_CLEAR 0x00000400
#define CPUID_STDEXT3_TSXFA 0x00002000
#define CPUID_STDEXT3_PCONFIG 0x00040000
@ -555,6 +556,7 @@
#define MSR_BBL_CR_BUSY 0x11b
#define MSR_BBL_CR_CTL3 0x11e
#define MSR_IA32_TSX_CTRL 0x122
#define MSR_IA32_MCU_OPT_CTRL 0x123
#define MSR_SYSENTER_CS_MSR 0x174
#define MSR_SYSENTER_ESP_MSR 0x175
#define MSR_SYSENTER_EIP_MSR 0x176
@ -797,6 +799,9 @@
/* MSR IA32_FLUSH_CMD */
#define IA32_FLUSH_CMD_L1D 0x00000001
/* MSR IA32_MCU_OPT_CTRL */
#define IA32_RNGDS_MITG_DIS 0x00000001
/* MSR IA32_HWP_CAPABILITIES */
#define IA32_HWP_CAPABILITIES_HIGHEST_PERFORMANCE(x) (((x) >> 0) & 0xff)
#define IA32_HWP_CAPABILITIES_GUARANTEED_PERFORMANCE(x) (((x) >> 8) & 0xff)

1
sys/x86/x86/identcpu.c
View File

@ -1028,6 +1028,7 @@ printcpuinfo(void)
"\004AVX512_4FMAPS"
"\005FSRM"
"\011AVX512VP2INTERSECT"
"\012MCUOPT"
"\013MD_CLEAR"
"\016TSXFA"
"\023PCONFIG"