On 11/23/2012 07:49 PM, Yuhong Bao wrote:
+ * Specifically, cr4 exists if and only if CPUID exists,
+ * which in turn exists if and only if EFLAGS.ID exists.
This may be true for *Intel* 486 CPUs as VME was implemented at the same time
as CPUID, but I am not sure that it is true for AMD 486 CPU
> + * Specifically, cr4 exists if and only if CPUID exists,
> + * which in turn exists if and only if EFLAGS.ID exists.
This may be true for *Intel* 486 CPUs as VME was implemented at the same time
as CPUID, but I am not sure that it is true for AMD 486 CPUs.
Yuhong Bao
Commit-ID: 5a5a51db78ef24aa61a4cb2ae36f07f6fa37356d
Gitweb: http://git.kernel.org/tip/5a5a51db78ef24aa61a4cb2ae36f07f6fa37356d
Author: H. Peter Anvin
AuthorDate: Mon, 24 Sep 2012 16:05:48 -0700
Committer: H. Peter Anvin
CommitDate: Wed, 26 Sep 2012 15:06:22 -0700
x86-32: Start out efla
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