Re: [Xen-devel] [PATCH v2 5/7] x86/xen: nopv parameter support for HVM guest

2019-06-26 Thread Juergen Gross
On 26.06.19 10:56, Zhenzhong Duan wrote: On 2019/6/25 20:31, Juergen Gross wrote: On 24.06.19 14:02, Zhenzhong Duan wrote: PVH guest needs PV extentions to work, so nopv parameter is ignored for PVH but not for HVM guest. In order for nopv parameter to take effect for HVM guest, we need to

Re: [Xen-devel] [PATCH v2 5/7] x86/xen: nopv parameter support for HVM guest

2019-06-26 Thread Zhenzhong Duan
On 2019/6/25 20:31, Juergen Gross wrote: On 24.06.19 14:02, Zhenzhong Duan wrote: PVH guest needs PV extentions to work, so nopv parameter is ignored for PVH but not for HVM guest. In order for nopv parameter to take effect for HVM guest, we need to distinguish between PVH and HVM guest early

Re: [Xen-devel] [PATCH v2 5/7] x86/xen: nopv parameter support for HVM guest

2019-06-25 Thread Juergen Gross
On 24.06.19 14:02, Zhenzhong Duan wrote: PVH guest needs PV extentions to work, so nopv parameter is ignored for PVH but not for HVM guest. In order for nopv parameter to take effect for HVM guest, we need to distinguish between PVH and HVM guest early in hypervisor detection code. By moving

[Xen-devel] [PATCH v2 5/7] x86/xen: nopv parameter support for HVM guest

2019-06-25 Thread Zhenzhong Duan
PVH guest needs PV extentions to work, so nopv parameter is ignored for PVH but not for HVM guest. In order for nopv parameter to take effect for HVM guest, we need to distinguish between PVH and HVM guest early in hypervisor detection code. By moving the detection of PVH in xen_platform_hvm(),