Re: [Xen-devel] [PATCH] xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7

2016-07-08 Thread David Vrabel
On 08/07/16 13:53, Jan Beulich wrote: On 08.07.16 at 14:29, wrote: >> On 08/07/16 13:15, Jan Beulich wrote: >>> As of Xen 4.7 PV CPUID doesn't expose either of CPUID[1].ECX[7] and >>> CPUID[0x8007].EDX[7] anymore, causing the driver to fail to load on >>> both Intel and AMD systems. Doing

Re: [PATCH] xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7

2016-07-08 Thread Jan Beulich
>>> On 08.07.16 at 14:29, wrote: > On 08/07/16 13:15, Jan Beulich wrote: >> As of Xen 4.7 PV CPUID doesn't expose either of CPUID[1].ECX[7] and >> CPUID[0x8007].EDX[7] anymore, causing the driver to fail to load on >> both Intel and AMD systems. Doing any kind of hardware capability >> checks

Re: [PATCH] xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7

2016-07-08 Thread David Vrabel
On 08/07/16 13:15, Jan Beulich wrote: > As of Xen 4.7 PV CPUID doesn't expose either of CPUID[1].ECX[7] and > CPUID[0x8007].EDX[7] anymore, causing the driver to fail to load on > both Intel and AMD systems. Doing any kind of hardware capability > checks in the driver as a prerequisite was wron

[PATCH] xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7

2016-07-08 Thread Jan Beulich
As of Xen 4.7 PV CPUID doesn't expose either of CPUID[1].ECX[7] and CPUID[0x8007].EDX[7] anymore, causing the driver to fail to load on both Intel and AMD systems. Doing any kind of hardware capability checks in the driver as a prerequisite was wrong anyway: With the hypervisor being in charge,