The patch titled
KVM: Use boot_cpu_data instead of current_cpu_data
has been added to the -mm tree. Its filename is
kvm-use-boot_cpu_data-instead-of-current_cpu_data.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: KVM: Use boot_cpu_data instead of current_cpu_data
From: Avi Kivity <avi@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/kvm/svm.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/kvm/svm.c~kvm-use-boot_cpu_data-instead-of-current_cpu_data drivers/kvm/svm.c
--- a/drivers/kvm/svm.c~kvm-use-boot_cpu_data-instead-of-current_cpu_data
+++ a/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;
}
_
Patches currently in -mm which might be from avi@xxxxxxxxxxxx are
kvm-use-boot_cpu_data-instead-of-current_cpu_data.patch
kvm-simplify-is_long_mode.patch
kvm-initialize-kvm_arch_ops-on-unload.patch
kvm-implement-a-few-system-configuration-msrs.patch
kvm-move-common-msr-handling-to-arch-independent-code.patch
kvm-more-msr-misery.patch
kvm-rename-some-msrs.patch
kvm-fix-oops-on-oom.patch
kvm-fix-gfp_kernel-allocation-in-atomic-section-in-kvm_dev_ioctl_create_vcpu.patch
-
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