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From: KY Srinivasan <kys@microsoft.com>
To: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>,
	"x86@kernel.org" <x86@kernel.org>,
	"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
	"olaf@aepfle.de" <olaf@aepfle.de>,
	"apw@canonical.com" <apw@canonical.com>,
	"jasowang@redhat.com" <jasowang@redhat.com>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"hpa@zytor.com" <hpa@zytor.com>,
	Stephen Hemminger <sthemmin@microsoft.com>,
	"vkuznets@redhat.com" <vkuznets@redhat.com>
Subject: RE: [PATCH 2/5] X86: Hyper-V: Enable IPI enlightenments
Date: Fri, 27 Apr 2018 06:31:24 +0000	[thread overview]
Message-ID: <MW2PR2101MB1113169BD526E9EA58ED400FA08D0@MW2PR2101MB1113.namprd21.prod.outlook.com> (raw)
In-Reply-To: <DM5PR2101MB1030AB156060230FB7A8BFCADC8E0@DM5PR2101MB1030.namprd21.prod.outlook.com>



> -----Original Message-----
> From: Michael Kelley (EOSG)
> Sent: Thursday, April 26, 2018 3:55 PM
> To: KY Srinivasan <kys@microsoft.com>; x86@kernel.org;
> gregkh@linuxfoundation.org; linux-kernel@vger.kernel.org;
> devel@linuxdriverproject.org; olaf@aepfle.de; apw@canonical.com;
> jasowang@redhat.com; tglx@linutronix.de; hpa@zytor.com; Stephen
> Hemminger <sthemmin@microsoft.com>; vkuznets@redhat.com
> Subject: RE: [PATCH 2/5] X86: Hyper-V: Enable IPI enlightenments
> 
> > -----Original Message-----
> > From: kys@linuxonhyperv.com <kys@linuxonhyperv.com>
> > Sent: Wednesday, April 25, 2018 11:13 AM
> > To: x86@kernel.org; gregkh@linuxfoundation.org; linux-
> kernel@vger.kernel.org;
> > devel@linuxdriverproject.org; olaf@aepfle.de; apw@canonical.com;
> jasowang@redhat.com;
> > tglx@linutronix.de; hpa@zytor.com; Stephen Hemminger
> <sthemmin@microsoft.com>;
> > Michael Kelley (EOSG) <Michael.H.Kelley@microsoft.com>;
> vkuznets@redhat.com
> > Cc: KY Srinivasan <kys@microsoft.com>
> > Subject: [PATCH 2/5] X86: Hyper-V: Enable IPI enlightenments
> >
> > From: "K. Y. Srinivasan" <kys@microsoft.com>
> >
> > Hyper-V supports hypercalls to implement IPI; use them.
> >
> > Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
> > ---
> >  arch/x86/hyperv/hv_apic.c          | 125
> +++++++++++++++++++++++++++++++++++++
> >  arch/x86/hyperv/hv_init.c          |  17 +++++
> >  arch/x86/include/asm/hyperv-tlfs.h |   9 +++
> >  arch/x86/include/asm/mshyperv.h    |   1 +
> >  4 files changed, 152 insertions(+)
> >
> > diff --git a/arch/x86/hyperv/hv_apic.c b/arch/x86/hyperv/hv_apic.c
> > index e0a5b36208fc..7f3322ecfb01 100644
> > --- a/arch/x86/hyperv/hv_apic.c
> > +++ b/arch/x86/hyperv/hv_apic.c
> > @@ -30,6 +30,14 @@
> >  #include <linux/slab.h>
> >  #include <linux/cpuhotplug.h>
> >
> > +struct ipi_arg_non_ex {
> > +	u32 vector;
> > +	u32 reserved;
> > +	u64 cpu_mask;
> > +};
> 
> I think we'd like to put structures like this, which are defined in the
> Hyper-V Top Level Functional Spec, in hyperv-tlfs.h.  Also, the 5.0b
> version of the TLFS, which is latest, shows this structure on page 100:
> 
> 	u32 vector;
> 	u8  targetvtl;
> 	u8  reserved[3];
> 	u64 cpu_mask;
> 

Good point. I will make the necessary adjustments.

Regards,

K. Y
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  reply	other threads:[~2018-04-27  6:31 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-25 18:11 [PATCH 0/5] X86: Hyper-V: APIC enlightenments kys
2018-04-25 18:12 ` [PATCH 1/5] X86: Hyper-V: Enlighten APIC access kys
2018-04-25 18:12   ` [PATCH 2/5] X86: Hyper-V: Enable IPI enlightenments kys
2018-04-26 21:31     ` Dan Carpenter
2018-04-27  6:34       ` KY Srinivasan
2018-04-26 22:08     ` Thomas Gleixner
2018-04-27  6:11       ` KY Srinivasan
2018-04-26 22:54     ` Michael Kelley (EOSG)
2018-04-27  6:31       ` KY Srinivasan [this message]
2018-04-27  6:24     ` kbuild test robot
2018-04-27 11:21     ` kbuild test robot
2018-04-27 11:55     ` kbuild test robot
2018-04-25 18:12   ` [PATCH 3/5] X86: Hyper-V: Enhanced IPI enlightenment kys
2018-04-26 22:16     ` Thomas Gleixner
2018-04-27  6:24       ` KY Srinivasan
2018-04-26 23:25     ` Michael Kelley (EOSG)
2018-04-25 18:12   ` [PATCH 4/5] X86: Hyper-V: Consolidate code for converting cpumask to vpset kys
2018-04-26 22:21     ` Thomas Gleixner
2018-04-25 18:12   ` [PATCH 5/5] X86: Hyper-V: Consolidate the allocation of the hypercall input page kys
2018-04-26 22:23     ` Thomas Gleixner
2018-04-27  6:29       ` KY Srinivasan
2018-04-27 10:58         ` Thomas Gleixner
2018-04-27 11:50     ` kbuild test robot
2018-04-26 21:49   ` [PATCH 1/5] X86: Hyper-V: Enlighten APIC access Thomas Gleixner
2018-04-27  5:52     ` KY Srinivasan
2018-04-26 22:15   ` Michael Kelley (EOSG)
2018-04-26 22:55     ` Thomas Gleixner
2018-04-27  5:44   ` kbuild test robot

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