Author: kib Date: Fri Jun 12 22:12:57 2020 New Revision: 362129 URL: https://svnweb.freebsd.org/changeset/base/362129
Log: x86: add bits definitions for SRBDS mitigation control. 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 Modified: head/sys/x86/include/specialreg.h head/sys/x86/x86/identcpu.c Modified: head/sys/x86/include/specialreg.h ============================================================================== --- head/sys/x86/include/specialreg.h Fri Jun 12 22:10:03 2020 (r362128) +++ head/sys/x86/include/specialreg.h Fri Jun 12 22:12:57 2020 (r362129) @@ -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 @@ -796,6 +798,9 @@ /* 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) Modified: head/sys/x86/x86/identcpu.c ============================================================================== --- head/sys/x86/x86/identcpu.c Fri Jun 12 22:10:03 2020 (r362128) +++ head/sys/x86/x86/identcpu.c Fri Jun 12 22:12:57 2020 (r362129) @@ -1028,6 +1028,7 @@ printcpuinfo(void) "\004AVX512_4FMAPS" "\005FSRM" "\011AVX512VP2INTERSECT" + "\012MCUOPT" "\013MD_CLEAR" "\016TSXFA" "\023PCONFIG" _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
