The kernel's copy of struct vcpu_register_vcpu_info was out of date, at best causing the hypercall to fail and the guest kernel to fall back to the old mechanism, or worse, causing random memory corruption. [ Stable folks: applies to 2.6.23 ] Signed-off-by: Jeremy Fitzhardinge Cc: Stable Kernel Cc: Morten =?utf-8?q?B=C3=B8geskov?= Cc: Mark Williamson --- arch/x86/xen/enlighten.c | 2 +- include/xen/interface/vcpu.h | 5 +++-- 2 files changed, 4 insertions(+), 3 deletions(-) =================================================================== --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -115,7 +115,7 @@ static void __init xen_vcpu_setup(int cp info.mfn = virt_to_mfn(vcpup); info.offset = offset_in_page(vcpup); - printk(KERN_DEBUG "trying to map vcpu_info %d at %p, mfn %x, offset %d\n", + printk(KERN_DEBUG "trying to map vcpu_info %d at %p, mfn %llx, offset %d\n", cpu, vcpup, info.mfn, info.offset); /* Check to see if the hypervisor will put the vcpu_info =================================================================== --- a/include/xen/interface/vcpu.h +++ b/include/xen/interface/vcpu.h @@ -160,8 +160,9 @@ struct vcpu_set_singleshot_timer { */ #define VCPUOP_register_vcpu_info 10 /* arg == struct vcpu_info */ struct vcpu_register_vcpu_info { - uint32_t mfn; /* mfn of page to place vcpu_info */ - uint32_t offset; /* offset within page */ + uint64_t mfn; /* mfn of page to place vcpu_info */ + uint32_t offset; /* offset within page */ + uint32_t rsvd; /* unused */ }; #endif /* __XEN_PUBLIC_VCPU_H__ */ -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/