From: Jeremy Fitzhardinge Date: Tue, 16 Oct 2007 18:51:31 +0000 (-0700) Subject: xen: fix incorrect vcpu_register_vcpu_info hypercall argument X-Git-Tag: v2.6.24-rc1~478^2~2 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3d2697669abbe26c08dc9b95e2a71c634d096ed;p=linux-2.6 xen: fix incorrect vcpu_register_vcpu_info hypercall argument The kernel's copy of struct vcpu_register_vcpu_info was out of date, at best causing the hypercall to fail and the guest kernel to fall back to the old mechanism, or worse, causing random memory corruption.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 --- diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index bc7bf5f8d0..c89e5b407f 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -113,7 +113,7 @@ static void __init xen_vcpu_setup(int cpu) 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 diff --git a/include/xen/interface/vcpu.h b/include/xen/interface/vcpu.h index ff61ea3659..b05d8a6d91 100644 --- 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__ */