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perf & kvm: Clean up some of the guest profiling callback API details

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Fix some build bug and programming style issues:

 - use valid C
 - fix up various style details

Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sheng Yang <sheng@linux.intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: oerg Roedel <joro@8bytes.org>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Cc: Zachary Amsden <zamsden@redhat.com>
Cc: zhiteng.huang@intel.com
Cc: tim.c.chen@intel.com
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
LKML-Reference: <1271729638.2078.624.camel@ymzhang.sh.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Zhang, Yanmin
2010-04-20 10:13:58 +08:00
committed by Ingo Molnar
parent a1645ce12a
commit dcf46b9443
3 changed files with 22 additions and 12 deletions
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4
arch/x86/kvm/x86.c
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@@ -3776,16 +3776,20 @@ static int kvm_is_in_guest(void)
static int kvm_is_user_mode(void)
{
int user_mode = 3;
if (percpu_read(current_vcpu))
user_mode = kvm_x86_ops->get_cpl(percpu_read(current_vcpu));
return user_mode != 0;
}
static unsigned long kvm_get_guest_ip(void)
{
unsigned long ip = 0;
if (percpu_read(current_vcpu))
ip = kvm_rip_read(percpu_read(current_vcpu));
return ip;
}