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RE: [Xen-devel] passing hypercall parameters by pointer
| To: | "Hollis Blanchard" <hollisb@xxxxxxxxxx>, "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] passing hypercall parameters by pointer |
| From: | "Tian, Kevin" <kevin.tian@xxxxxxxxx> |
| Date: | Thu, 18 Aug 2005 14:56:26 +0800 |
| Cc: | Jimi Xenidis <jimix@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 18 Aug 2005 06:55:23 +0000 |
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| Thread-index: | AcWjd/f1nBfsavTqQSix44HCZcUjugAQXL6w |
| Thread-topic: | [Xen-devel] passing hypercall parameters by pointer |
>From: Hollis Blanchard >Sent: Thursday, August 18, 2005 6:05 AM > case DOM0_GETMEMLIST: > op->u.getmemlist.buffer = virt_to_phys(op->u.getmemlist.buffer); > break; If following Ian's suggestion, you have to create a list of pfn here instead of only converting start address. There's no guaranty that the buffer is limited in one page. ;-) Thanks, Kevin > case DOM0_SETDOMAININFO: > ... > case DOM0_READCONSOLE: > ... > } > } > break; > } > >Right now the kernel doesn't peer inside the hypercall structures at all. > >-- >Hollis Blanchard >IBM Linux Technology Center > >_______________________________________________ >Xen-devel mailing list >Xen-devel@xxxxxxxxxxxxxxxxxxx >http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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