From: Borislav Petkov <bp@alien8.de>
To: Michael Kelley <mikelley@microsoft.com>
Cc: Juergen Gross <jgross@suse.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
"x86@kernel.org" <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
"virtualization@lists.linux-foundation.org"
<virtualization@lists.linux-foundation.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Deep Shah <sdeep@vmware.com>,
"VMware, Inc." <pv-drivers@vmware.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <seanjc@google.com>,
vkuznets <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Daniel Bristot de Oliveira <bristot@redhat.com>
Subject: Re: [PATCH v3 06/15] x86/paravirt: switch time pvops functions to use static_call()
Date: Wed, 6 Jan 2021 11:41:26 +0100 [thread overview]
Message-ID: <20210106104126.GC5729@zn.tnic> (raw)
In-Reply-To: <MW2PR2101MB1052877B5376112F1BAF3D93D7C49@MW2PR2101MB1052.namprd21.prod.outlook.com>
On Thu, Dec 17, 2020 at 05:31:50PM +0000, Michael Kelley wrote:
> These Hyper-V changes are problematic as we want to keep hyperv_timer.c
> architecture independent. While only the code for x86/x64 is currently
> accepted upstream, code for ARM64 support is in progress. So we need
> to use hv_setup_sched_clock() in hyperv_timer.c, and have the per-arch
> implementation in mshyperv.h.
Why, because ARM doesn't have static_call yet? I hear someone is working
on that...
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Michael Kelley <mikelley@microsoft.com>
Cc: Juri Lelli <juri.lelli@redhat.com>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Wanpeng Li <wanpengli@tencent.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"VMware, Inc." <pv-drivers@vmware.com>,
"virtualization@lists.linux-foundation.org"
<virtualization@lists.linux-foundation.org>,
Ben Segall <bsegall@google.com>, "H. Peter Anvin" <hpa@zytor.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Wei Liu <wei.liu@kernel.org>,
Stefano Stabellini <sstabellini@kernel.org>,
Stephen Hemminger <sthemmin@microsoft.com>,
Joerg Roedel <joro@8bytes.org>, "x86@kernel.org" <x86@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, Mel Gorman <mgorman@suse.de>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
Haiyang Zhang <haiyangz@microsoft.com>,
Steven Rostedt <rostedt@goodmis.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Jim Mattson <jmattson@google.com>,
Juergen Gross <jgross@suse.com>,
Sean Christopherson <seanjc@google.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>
Subject: Re: [PATCH v3 06/15] x86/paravirt: switch time pvops functions to use static_call()
Date: Wed, 6 Jan 2021 11:41:26 +0100 [thread overview]
Message-ID: <20210106104126.GC5729@zn.tnic> (raw)
In-Reply-To: <MW2PR2101MB1052877B5376112F1BAF3D93D7C49@MW2PR2101MB1052.namprd21.prod.outlook.com>
On Thu, Dec 17, 2020 at 05:31:50PM +0000, Michael Kelley wrote:
> These Hyper-V changes are problematic as we want to keep hyperv_timer.c
> architecture independent. While only the code for x86/x64 is currently
> accepted upstream, code for ARM64 support is in progress. So we need
> to use hv_setup_sched_clock() in hyperv_timer.c, and have the per-arch
> implementation in mshyperv.h.
Why, because ARM doesn't have static_call yet? I hear someone is working
on that...
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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next prev parent reply other threads:[~2021-01-06 10:42 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-17 9:31 [PATCH v3 00/15] x86: major paravirt cleanup Juergen Gross
2020-12-17 9:31 ` Juergen Gross via Virtualization
2020-12-17 9:31 ` [PATCH v3 01/15] x86/xen: use specific Xen pv interrupt entry for MCE Juergen Gross
2020-12-17 9:31 ` [PATCH v3 02/15] x86/xen: use specific Xen pv interrupt entry for DF Juergen Gross
2020-12-17 9:31 ` [PATCH v3 03/15] x86/pv: switch SWAPGS to ALTERNATIVE Juergen Gross via Virtualization
2020-12-17 9:31 ` Juergen Gross
2020-12-17 9:31 ` [PATCH v3 04/15] x86/xen: drop USERGS_SYSRET64 paravirt call Juergen Gross via Virtualization
2020-12-17 9:31 ` Juergen Gross
2020-12-17 9:31 ` [PATCH v3 05/15] x86: rework arch_local_irq_restore() to not use popf Juergen Gross via Virtualization
2020-12-17 9:31 ` Juergen Gross
2020-12-17 9:31 ` [PATCH v3 06/15] x86/paravirt: switch time pvops functions to use static_call() Juergen Gross
2020-12-17 9:31 ` Juergen Gross via Virtualization
2020-12-17 17:31 ` Michael Kelley
2020-12-17 17:31 ` Michael Kelley via Virtualization
2021-01-06 10:41 ` Borislav Petkov [this message]
2021-01-06 10:41 ` Borislav Petkov
2021-01-19 11:36 ` Jürgen Groß
2021-01-19 11:36 ` Jürgen Groß via Virtualization
2021-01-06 10:03 ` Borislav Petkov
2021-01-06 10:03 ` Borislav Petkov
2021-01-19 11:33 ` Jürgen Groß
2021-01-19 11:33 ` Jürgen Groß via Virtualization
2020-12-17 9:31 ` [PATCH v3 07/15] x86/alternative: support "not feature" and ALTERNATIVE_TERNARY Juergen Gross
2021-01-07 19:08 ` Borislav Petkov
2021-01-19 11:35 ` Jürgen Groß
2021-01-19 12:06 ` Borislav Petkov
2021-01-19 12:12 ` Jürgen Groß
2020-12-17 9:31 ` [PATCH v3 08/15] x86: add new features for paravirt patching Juergen Gross
2020-12-17 13:12 ` kernel test robot
2020-12-17 13:12 ` kernel test robot
2021-01-14 18:30 ` Borislav Petkov
2021-01-14 18:30 ` Borislav Petkov
2021-01-14 18:40 ` Borislav Petkov
2021-01-14 18:40 ` Borislav Petkov
2020-12-17 9:31 ` [PATCH v3 09/15] x86/paravirt: remove no longer needed 32-bit pvops cruft Juergen Gross via Virtualization
2020-12-17 9:31 ` Juergen Gross
2020-12-17 9:31 ` [PATCH v3 10/15] x86/paravirt: simplify paravirt macros Juergen Gross via Virtualization
2020-12-17 9:31 ` Juergen Gross
2020-12-17 16:46 ` kernel test robot
2020-12-17 16:46 ` kernel test robot
2020-12-17 16:46 ` kernel test robot
2020-12-17 9:31 ` [PATCH v3 11/15] x86/paravirt: switch iret pvops to ALTERNATIVE Juergen Gross via Virtualization
2020-12-17 9:31 ` Juergen Gross
2020-12-17 9:31 ` [PATCH v3 12/15] objtool: Alternatives vs ORC, the hard way Juergen Gross
2020-12-17 9:31 ` [PATCH v3 13/15] x86/paravirt: add new macros PVOP_ALT* supporting pvops in ALTERNATIVEs Juergen Gross via Virtualization
2020-12-17 9:31 ` Juergen Gross
2020-12-17 9:31 ` [PATCH v3 14/15] x86/paravirt: switch functions with custom code to ALTERNATIVE Juergen Gross via Virtualization
2020-12-17 9:31 ` Juergen Gross
2020-12-17 16:42 ` kernel test robot
2020-12-17 16:42 ` kernel test robot
2020-12-17 16:42 ` kernel test robot
2020-12-17 9:31 ` [PATCH v3 15/15] x86/paravirt: have only one paravirt patch function Juergen Gross via Virtualization
2020-12-17 9:31 ` Juergen Gross
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