diff options
Diffstat (limited to 'src/security')
| -rw-r--r-- | src/security/intel/txt/getsec_enteraccs.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/security/intel/txt/getsec_enteraccs.S b/src/security/intel/txt/getsec_enteraccs.S index 09f9f389e6..cbb24b6511 100644 --- a/src/security/intel/txt/getsec_enteraccs.S +++ b/src/security/intel/txt/getsec_enteraccs.S @@ -227,6 +227,10 @@ cond_clear_var_mtrrs: movd %esp, %xmm0 movd %ebp, %xmm1 + /* Backup %gs used by CPU_INFO_V2 */ + movl %gs, %eax + movd %eax, %xmm2 + /* * Get function arguments. * It's important to pass the exact ACM size as it's used by getsec to verify @@ -261,6 +265,8 @@ cond_clear_var_mtrrs: movl %eax, %es movl %eax, %ss movl %eax, %fs + /* Restore %gs used by CPU_INFO_V2 */ + movd %xmm2, %eax movl %eax, %gs /* Disable cache */ |