[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v9 1/7] x86/domctl: generalize the restore of vMCE parameters
>>> Haozhong Zhang <haozhong.zhang@xxxxxxxxx> 07/12/17 4:05 AM >>> >+static int vcpu_set_vmce(struct vcpu *v, >+ const struct xen_domctl_ext_vcpucontext *evc) >+{ >+ /* >+ * Sizes of vMCE parameters used by the current and past versions >+ * of Xen in descending order. If vMCE parameters are extended, >+ * remember to add the old size to this array by VMCE_SIZE(). >+ */ >+#define VMCE_SIZE(field) \ >+ (offsetof(typeof(evc->vmce), field) + sizeof(evc->vmce.field)) >+ >+ static const unsigned int valid_sizes[] = { >+ sizeof(evc->vmce), >+ VMCE_SIZE(caps), >+ }; >+#undef VMCE_SIZE >+ >+ struct hvm_vmce_vcpu vmce = { }; >+ unsigned int evc_vmce_size = >+ min(evc->size - offsetof(typeof(*evc), mcg_cap), sizeof(evc->vmce)); I should have noticed this earlier, and I'll try to remember to adjust this while committing: Instead of mcg_cap we really should be using vmce here, as the former is there solely for backward compatibility purposes (which this expression doesn't relate to directly). Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |