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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Xen-devel <xen-devel@lists.xen.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
	Keir Fraser <keir@xen.org>, Jan Beulich <JBeulich@suse.com>,
	Tim Deegan <tim@xen.org>
Subject: [PATCH v2 3/5] x86/time: Initialise time earlier during start_secondary()
Date: Fri, 28 Feb 2014 18:57:02 +0000	[thread overview]
Message-ID: <1393613824-13230-4-git-send-email-andrew.cooper3@citrix.com> (raw)
In-Reply-To: <1393613824-13230-1-git-send-email-andrew.cooper3@citrix.com>

It is safe to do so, and useful for "[second.nanoseconds]" style timestamps on
printk()s during secondary bringup.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
CC: Keir Fraser <keir@xen.org>
CC: Jan Beulich <JBeulich@suse.com>
CC: Tim Deegan <tim@xen.org>
---
 xen/arch/x86/smpboot.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/smpboot.c b/xen/arch/x86/smpboot.c
index 42b8a59..5014397 100644
--- a/xen/arch/x86/smpboot.c
+++ b/xen/arch/x86/smpboot.c
@@ -347,6 +347,8 @@ void start_secondary(void *unused)
 
     percpu_traps_init();
 
+    init_percpu_time();
+
     cpu_init();
 
     smp_callin();
@@ -381,8 +383,6 @@ void start_secondary(void *unused)
     cpumask_set_cpu(cpu, &cpu_online_map);
     unlock_vector_lock();
 
-    init_percpu_time();
-
     /* We can take interrupts now: we're officially "up". */
     local_irq_enable();
     mtrr_ap_init();
-- 
1.7.10.4

  parent reply	other threads:[~2014-02-28 18:57 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-28 18:56 [RFC PATCH v2 0/5] Improvements to console timestamps Andrew Cooper
2014-02-28 18:57 ` [PATCH v2 1/5] x86/time: Avoid redundant this_cpu() Andrew Cooper
2014-02-28 18:57 ` [PATCH v2 2/5] x86/time: Always count s_time from Xen boot Andrew Cooper
2014-03-03 10:59   ` David Vrabel
2014-03-06 16:01   ` [PATCH v3] " Tim Deegan
2014-03-06 16:15     ` Jan Beulich
2014-03-06 16:18       ` Andrew Cooper
2014-02-28 18:57 ` Andrew Cooper [this message]
2014-03-04  9:02   ` [PATCH v2 3/5] x86/time: Initialise time earlier during start_secondary() Jan Beulich
2014-03-04 10:40     ` Andrew Cooper
2014-02-28 18:57 ` [PATCH v2 4/5] [RFC] xen/console: Provide timestamps as an offset since boot Andrew Cooper
2014-03-03 10:53   ` David Vrabel
2014-02-28 18:57 ` [PATCH v2 5/5] [RFC] Traditional console timestamps including milliseconds Andrew Cooper
2014-03-01  4:06   ` Julien Grall
2014-03-03 10:35     ` Andrew Cooper
2014-03-04  9:14   ` Jan Beulich
2014-03-04 10:30     ` Andrew Cooper
2014-03-04 20:51       ` Don Slutz

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