tree 2a89d562b28844a4b496fe8db8e307df2174f4a4
parent d2499d8b6c94df02629631807dd96deae7aa7637
author Roland McGrath <roland@redhat.com> 1201696254 +0100
committer Ingo Molnar <mingo@elte.hu> 1201696254 +0100

x86: debugctlmsr kconfig

This adds the (internal) Kconfig macro CONFIG_X86_DEBUGCTLMSR,
to be defined when configuring to support only hardware that
definitely supports MSR_IA32_DEBUGCTLMSR with the BTF flag.

The Intel documentation says "P6 family" and later processors all have it.
I think the Kconfig dependencies are right to have it set for those and
unset for others (i.e., when 586 and earlier are supported).

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>