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Groups > linux.kernel > #1567613
| From | Andy Lutomirski <luto@amacapital.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v1 2/3] x86/xen/time: setup vcpu 0 time info page |
| Date | 2017-01-26 18:20 +0100 |
| Message-ID | <t3VSh-1FT-15@gated-at.bofh.it> (permalink) |
| References | <t3zI6-4Hf-3@gated-at.bofh.it> <t3zI6-4Hf-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Jan 25, 2017 at 9:33 AM, Joao Martins <joao.m.martins@oracle.com> 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. No objections from me assuming the code is correct.
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[PATCH v1 0/3] x86/xen: pvclock vdso support Joao Martins <joao.m.martins@oracle.com> - 2017-01-25 18:40 +0100
[PATCH v1 2/3] x86/xen/time: setup vcpu 0 time info page Joao Martins <joao.m.martins@oracle.com> - 2017-01-25 18:40 +0100
Re: [PATCH v1 2/3] x86/xen/time: setup vcpu 0 time info page Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-01-25 20:30 +0100
Re: [PATCH v1 2/3] x86/xen/time: setup vcpu 0 time info page Joao Martins <joao.m.martins@oracle.com> - 2017-01-26 14:30 +0100
Re: [PATCH v1 2/3] x86/xen/time: setup vcpu 0 time info page Andy Lutomirski <luto@amacapital.net> - 2017-01-26 18:20 +0100
[PATCH v1 3/3] MAINTAINERS: xen, kvm: track pvclock-abi.h changes Joao Martins <joao.m.martins@oracle.com> - 2017-01-25 18:40 +0100
Re: [PATCH v1 3/3] MAINTAINERS: xen, kvm: track pvclock-abi.h changes Andy Lutomirski <luto@amacapital.net> - 2017-01-26 18:30 +0100
Re: [PATCH v1 3/3] MAINTAINERS: xen, kvm: track pvclock-abi.h changes Joao Martins <joao.m.martins@oracle.com> - 2017-01-26 21:10 +0100
Re: [PATCH v1 3/3] MAINTAINERS: xen, kvm: track pvclock-abi.h changes Juergen Gross <jgross@suse.com> - 2017-01-27 16:00 +0100
[PATCH v1 1/3] x86/pvclock: add setter for pvclock_pvti_cpu0_va Joao Martins <joao.m.martins@oracle.com> - 2017-01-25 18:40 +0100
Re: [PATCH v1 1/3] x86/pvclock: add setter for pvclock_pvti_cpu0_va Andy Lutomirski <luto@amacapital.net> - 2017-01-26 18:30 +0100
Re: [PATCH v1 1/3] x86/pvclock: add setter for pvclock_pvti_cpu0_va Joao Martins <joao.m.martins@oracle.com> - 2017-01-26 21:00 +0100
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