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Re: [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page

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On 27/09/17 15:46, Joao Martins wrote:
> In order to support pvclock vdso on xen we need to setup the time
> info page for vcpu 0 and register the page with Xen using the
> VCPUOP_register_vcpu_time_memory_area hypercall. This hypercall
> will also forcefully update the pvti which will set some of the
> necessary flags for vdso. Afterwards we check if it supports the
> PVCLOCK_TSC_STABLE_BIT flag which is mandatory for having
> vdso/vsyscall support. And if so, it will set the cpu 0 pvti that
> will be later on used when mapping the vdso image.
> 
> The xen headers are also updated to include the new hypercall for
> registering the secondary vcpu_time_info struct.
> 
> Signed-off-by: Joao Martins <joao.m.martins@oracle.com>

Reviewed-by: Juergen Gross <jgross@suse.com>


Juergen

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[PATCH v4 0/3] x86/xen: pvclock vdso support Joao Martins <joao.m.martins@oracle.com> - 2017-09-27 15:50 +0200
  [PATCH v4 3/3] MAINTAINERS: xen, kvm: track pvclock-abi.h changes Joao Martins <joao.m.martins@oracle.com> - 2017-09-27 15:50 +0200
    Re: [PATCH v4 3/3] MAINTAINERS: xen, kvm: track pvclock-abi.h changes Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> - 2017-09-27 21:40 +0200
      Re: [PATCH v4 3/3] MAINTAINERS: xen, kvm: track pvclock-abi.h changes Paolo Bonzini <pbonzini@redhat.com> - 2017-09-28 13:00 +0200
  [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page Joao Martins <joao.m.martins@oracle.com> - 2017-09-27 15:50 +0200
    Re: [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page Juergen Gross <jgross@suse.com> - 2017-09-27 16:20 +0200
    Re: [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-09-27 16:50 +0200
      Re: [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page Joao Martins <joao.m.martins@oracle.com> - 2017-09-27 17:30 +0200
        Re: [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-09-27 22:30 +0200
          Re: [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page Joao Martins <joao.m.martins@oracle.com> - 2017-09-27 23:00 +0200
            Re: [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-09-28 00:50 +0200
              Re: [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page Joao Martins <joao.m.martins@oracle.com> - 2017-09-28 01:50 +0200
                Re: [PATCH v4 2/3] x86/xen/time: setup vcpu 0 time info page Joao Martins <joao.m.martins@oracle.com> - 2017-09-28 12:20 +0200
  [PATCH v4 1/3] x86/pvclock: add setter for pvclock_pvti_cpu0_va Joao Martins <joao.m.martins@oracle.com> - 2017-09-27 15:50 +0200

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