From: Avi Kivity <avi@qumranet.com>
To: kvm-devel@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org, mingo@elte.hu
Subject: [PATCH 1/8] KVM: Use boot_cpu_data instead of current_cpu_data
Date: Thu, 28 Dec 2006 10:08:17 -0000 [thread overview]
Message-ID: <20061228100817.3B6042500F7@il.qumranet.com> (raw)
In-Reply-To: <45939755.7010603@qumranet.com>
current_cpu_data invokes smp_processor_id(), which is inadvisable when
preemption is enabled. Switch to boot_cpu_data instead.
Resolves sourceforge bug 1621401.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Index: linux-2.6/drivers/kvm/svm.c
===================================================================
--- linux-2.6.orig/drivers/kvm/svm.c
+++ linux-2.6/drivers/kvm/svm.c
@@ -246,7 +246,7 @@ static int has_svm(void)
{
uint32_t eax, ebx, ecx, edx;
- if (current_cpu_data.x86_vendor != X86_VENDOR_AMD) {
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
printk(KERN_INFO "has_svm: not amd\n");
return 0;
}
next prev parent reply other threads:[~2006-12-28 10:08 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-28 10:07 [PATCH 0/8] KVM updates for 2.6.20-rc2 Avi Kivity
2006-12-28 10:08 ` Avi Kivity [this message]
2006-12-28 10:09 ` [PATCH 2/8] KVM: Simplify is_long_mode() Avi Kivity
2006-12-28 10:11 ` [PATCH 4/8] KVM: Implement a few system configuration msrs Avi Kivity
2007-01-01 0:07 ` Ingo Oeser
2007-01-01 8:20 ` Avi Kivity
2006-12-28 10:12 ` [PATCH 5/8] KVM: Move common msr handling to arch independent code Avi Kivity
2006-12-28 10:13 ` [PATCH 6/8] KVM: More msr misery Avi Kivity
2006-12-28 10:14 ` [PATCH 7/8] KVM: Rename some msrs Avi Kivity
2006-12-28 10:15 ` [PATCH 8/8] KVM: Fix oops on oom Avi Kivity
2006-12-28 12:42 ` [patch] kvm: fix GFP_KERNEL allocation in atomic section in kvm_dev_ioctl_create_vcpu() Ingo Molnar
2006-12-28 12:56 ` Avi Kivity
2006-12-28 12:55 ` Ingo Molnar
2006-12-28 13:08 ` [patch, try#2] " Ingo Molnar
2006-12-28 13:14 ` Avi Kivity
2006-12-28 13:23 ` Ingo Molnar
2006-12-28 13:30 ` Avi Kivity
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