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[Xen-devel] RE: Is hypercall_hvm_op in changeset 11060 effective?
| To: | "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] RE: Is hypercall_hvm_op in changeset 11060 effective? |
| From: | "Li, Xin B" <xin.b.li@xxxxxxxxx> |
| Date: | Sat, 12 Aug 2006 23:20:05 +0800 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Sat, 12 Aug 2006 08:20:38 -0700 |
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| Thread-topic: | Is hypercall_hvm_op in changeset 11060 effective? |
>> hypercall_hvm_op in changeset 11060 seem not effective, should we use
>> vmmcall instead since hvmloader is running in none-root vmcs mode?
>
>What do you think is the problem? Init_hypercall() sets up a hypercall
>transfer page suitable for the architecture you are running on
>(so it uses
>vmmcall when running on VT-x). There are a few example
>hypercalls at the end
>of that function which do work properly.
>
Just found the code in hvmloader.c seems not work.
hvm_param.domid = DOMID_SELF;
hvm_param.index = HVM_PARAM_APIC_ENABLED;
if (!hypercall_hvm_op(HVMOP_get_param, &hvm_param) &&
hvm_param.value)
create_mp_tables();
Need more investigation.
Thanks
-Xin
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