From: Roland McGrath <roland@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH 23/27] x86: debugctlmsr kconfig
Date: Sun, 25 Nov 2007 14:08:02 -0800 (PST) [thread overview]
Message-ID: <20071125220802.76C2F26F8C5@magilla.localdomain> (raw)
In-Reply-To: Roland McGrath's message of Sunday, 25 November 2007 13:55:07 -0800 <20071125215507.4B89226F8C5@magilla.localdomain>
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>
---
arch/x86/Kconfig.cpu | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index c301622..69e2ee4 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -399,3 +399,7 @@ config X86_MINIMUM_CPU_FAMILY
default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK)
default "3"
+config X86_DEBUGCTLMSR
+ bool
+ depends on !(M586MMX || M586TSC || M586 || M486 || M386)
+ default y
next prev parent reply other threads:[~2007-11-25 22:08 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-25 21:55 [PATCH 01/27] ptrace: arch_has_single_step Roland McGrath
2007-11-25 21:58 ` [PATCH 02/27] x86: segment selector macros Roland McGrath
2007-11-25 21:58 ` [PATCH 03/27] x86: remove TRAP_FLAG Roland McGrath
2007-11-25 21:59 ` [PATCH 04/27] x86: arch_has_single_step Roland McGrath
2007-11-25 21:59 ` [PATCH 05/27] x86: single_step moved Roland McGrath
2007-11-25 21:59 ` [PATCH 06/27] x86: single_step segment macros Roland McGrath
2007-11-25 22:00 ` [PATCH 07/27] x86: single_step 0xf0 Roland McGrath
2007-11-25 22:00 ` [PATCH 08/27] x86: single_step: share code Roland McGrath
2007-11-25 22:00 ` [PATCH 09/27] x86 single_step: TIF_FORCED_TF Roland McGrath
2007-11-25 22:01 ` [PATCH 10/27] ptrace: generic resume Roland McGrath
2007-11-25 22:23 ` Christoph Hellwig
2007-11-25 22:37 ` Roland McGrath
2007-11-25 22:01 ` [PATCH 11/27] x86-64: ptrace " Roland McGrath
2007-11-25 22:01 ` [PATCH 12/27] x86-32: " Roland McGrath
2007-11-25 22:03 ` [PATCH 13/27] powerpc: arch_has_single_step Roland McGrath
2007-11-25 22:04 ` [PATCH 14/27] powerpc: ptrace generic resume Roland McGrath
2007-12-03 8:12 ` Srinivasa Ds
2007-11-25 22:04 ` [PATCH 15/27] x86-32 ptrace: use task_pt_regs Roland McGrath
2007-11-25 22:04 ` [PATCH 16/27] x86-64 " Roland McGrath
2007-11-25 22:04 ` [PATCH 17/27] x86-64 ptrace debugreg cleanup Roland McGrath
2007-11-25 22:05 ` [PATCH 18/27] x86-64 ia32 " Roland McGrath
2007-11-25 22:05 ` [PATCH 19/27] x86-32 " Roland McGrath
2007-11-25 22:05 ` [PATCH 20/27] ptrace: arch_has_block_step Roland McGrath
2007-11-28 23:39 ` David Wilder
2007-11-28 23:58 ` Roland McGrath
2007-11-25 22:06 ` [PATCH 21/27] ptrace: generic PTRACE_SINGLEBLOCK Roland McGrath
2007-11-25 22:06 ` [PATCH 22/27] x86: debugctlmsr constants Roland McGrath
2007-11-25 22:08 ` Roland McGrath [this message]
2007-11-26 1:09 ` [PATCH 23/27] x86: debugctlmsr kconfig Denys Vlasenko
2007-11-26 7:51 ` Roland McGrath
2007-11-26 22:52 ` Denys Vlasenko
2007-11-26 1:57 ` Dave Jones
2007-11-26 8:06 ` Roland McGrath
2007-11-25 22:08 ` [PATCH 24/27] x86: debugctlmsr context switch Roland McGrath
2007-11-25 22:08 ` [PATCH 25/27] x86: debugctlmsr arch_has_block_step Roland McGrath
2007-11-25 22:08 ` [PATCH 26/27] x86: debugctlmsr kprobes Roland McGrath
2007-11-25 22:08 ` [PATCH 27/27] x86: PTRACE_SINGLEBLOCK Roland McGrath
2007-11-25 22:22 ` [PATCH 01/27] ptrace: arch_has_single_step Christoph Hellwig
2007-11-25 22:59 ` Roland McGrath
2007-11-27 8:53 ` Andrew Morton
2007-11-27 10:38 ` Ingo Molnar
2007-11-27 23:05 ` Roland McGrath
2007-11-27 23:58 ` Ingo Molnar
2007-11-28 0:08 ` Roland McGrath
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20071125220802.76C2F26F8C5@magilla.localdomain \
--to=roland@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®