[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH RFC v12 15/21] pvh: Set up more PV stuff in set_info_guest
On 20/09/13 15:58, Jan Beulich wrote: On 20.09.13 at 16:50, George Dunlap <george.dunlap@xxxxxxxxxxxxx> wrote:On 18/09/13 16:17, Jan Beulich wrote:On 13.09.13 at 18:25, George Dunlap <george.dunlap@xxxxxxxxxxxxx> wrote:+int vmx_pvh_vcpu_boot_set_info(struct vcpu *v, + struct vcpu_guest_context *ctxtp) +{ + if ( ctxtp->ldt_base || ctxtp->ldt_ents || + ctxtp->user_regs.cs || ctxtp->user_regs.ss || ctxtp->user_regs.es || + ctxtp->user_regs.ds || ctxtp->user_regs.fs || ctxtp->user_regs.gs || + *ctxtp->gdt_frames || ctxtp->gdt_ents ||Don't know why I didn't spot this earlier, but the gdt_frames check is pointless when gdt_ents is verified to be zero.You know, looking at this again -- is there a reason we can't just put this in hvm_set_info_guest()? It's already only called from that one place, only a few lines before. There doesn't really seem to be a need to have yet another function for just a few lines.Indeed - only the VMX specific piece belongs here; everything else should be in the generic wrapper (which perhaps then won't be a simple wrapper anymore). Or, we could do like is done for pv, and put the validity checks at the top of arch_set_info_guest(). I think I like that option the best. -George _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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