[patch] bugfix, correct itc_offset calculations
Jes Sorensen <[email protected]>
| Newsgroups | org.kernel.vger.kvm-ia64 |
|---|---|
| Message-ID | <[email protected]> |
Hi, Gleb Natapov spotted that I had been a little over aggressive when I introduced the vcpu_online counter, so the code in kvm_arch_vcpu_init() only calculated the itc_offset for vCPU 0. Please apply. Cheers, Jes
4000-kvm-ia64-itc-init.patch
(text/x-patch, 810 B)
Init the itc_offset for all possible vCPUs. The current code by mistake ends up only initializing the offset on vCPU 0. Spotted by Gleb Natapov Signed-off-by: Jes Sorensen <[email protected]> --- arch/ia64/kvm/kvm-ia64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6.git/arch/ia64/kvm/kvm-ia64.c =================================================================== --- linux-2.6.git.orig/arch/ia64/kvm/kvm-ia64.c +++ linux-2.6.git/arch/ia64/kvm/kvm-ia64.c @@ -1166,7 +1166,7 @@ /*Initialize itc offset for vcpus*/ itc_offset = 0UL - ia64_getreg(_IA64_REG_AR_ITC); - for (i = 0; i < kvm->arch.online_vcpus; i++) { + for (i = 0; i < KVM_MAX_VCPUS; i++) { v = (struct kvm_vcpu *)((char *)vcpu + sizeof(struct kvm_vcpu_data) * i); v->arch.itc_offset = itc_offset;