diff options
| author | Christian Weisgerber <naddy@cvs.openbsd.org> | 2016-02-12 21:36:34 +0000 |
|---|---|---|
| committer | Christian Weisgerber <naddy@cvs.openbsd.org> | 2016-02-12 21:36:34 +0000 |
| commit | 558d36d5bfb0521129a5208d52119b087305be43 (patch) | |
| tree | 1c5b9e79e0c76239478998dabb6f4b7aa1594bcb /sys/arch/i386 | |
| parent | 02745c316e4f3ca759b5f3302af3be544707aee7 (diff) | |
Remove the "GenuineIntel" check from x86 mdrandom(). Checking the
CPU features is enough, and this enables the use of RDRAND and the
TSC fallback on CPUs from other vendors, notably AMD.
Tested in snapshots for a month.
Diffstat (limited to 'sys/arch/i386')
| -rw-r--r-- | sys/arch/i386/stand/libsa/random_i386.S | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/sys/arch/i386/stand/libsa/random_i386.S b/sys/arch/i386/stand/libsa/random_i386.S index 56ad3864e13..fb1de133be3 100644 --- a/sys/arch/i386/stand/libsa/random_i386.S +++ b/sys/arch/i386/stand/libsa/random_i386.S @@ -1,4 +1,4 @@ -/* $OpenBSD: random_i386.S,v 1.9 2016/01/12 23:00:13 deraadt Exp $ */ +/* $OpenBSD: random_i386.S,v 1.10 2016/02/12 21:36:33 naddy Exp $ */ /* * Copyright (c) 2013 Joel Sing <jsing@openbsd.org> @@ -42,17 +42,6 @@ ENTRY(mdrandom) andl $PSL_ID, %eax jz done - // CPUID leaf = 0, subleaf = 0 - movl $0, %eax - movl $0, %ecx - cpuid - cmpl $0x756e6547, %ebx // "Genu" - jne done - cmpl $0x49656e69, %edx // "ineI" - jne done - cmpl $0x6c65746e, %ecx // "ntel" - jne done - // CPUID leaf = 1, subleaf = 0 movl $1, %eax movl $0, %ecx |