From: Greg KH <gregkh@linuxfoundation.org>
To: kys@microsoft.com
Cc: linux-kernel@vger.kernel.org, devel@linuxdriverproject.org,
olaf@aepfle.de, apw@canonical.com, vkuznets@redhat.com,
jasowang@redhat.com, leann.ogasawara@canonical.com,
marcelo.cerri@canonical.com, sthemmin@microsoft.com
Subject: Re: [PATCH 03/10] x86/hyper-v: make hv_do_hypercall() inline
Date: Mon, 17 Jul 2017 17:21:55 +0200 [thread overview]
Message-ID: <20170717152155.GA24572@kroah.com> (raw)
In-Reply-To: <1498410409-30997-3-git-send-email-kys@exchange.microsoft.com>
On Sun, Jun 25, 2017 at 10:06:42AM -0700, kys@exchange.microsoft.com wrote:
> From: Vitaly Kuznetsov <vkuznets@redhat.com>
>
> We have only three call sites for hv_do_hypercall() and we're going to
> change HVCALL_SIGNAL_EVENT to doing fast hypercall so we can inline this
> function for optimization.
>
> Hyper-V top level functional specification states that r9-r11 registers
> and flags may be clobbered by the hypervisor during hypercall and with
> inlining this is somewhat important, add the clobbers.
>
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
This patch breaks the build, so can you please rebase and resend this,
and the rest of this series, if you wish to have it applied?
thanks,
greg k-h
next prev parent reply other threads:[~2017-07-17 15:22 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-25 17:06 [PATCH 00/10] Hyper-V: paravirtualized remote TLB flushing and hypercall improvements kys
2017-06-25 17:06 ` [PATCH 01/10] x86/hyper-v: include hyperv/ only when CONFIG_HYPERV is set kys
2017-06-25 17:06 ` [PATCH 02/10] x86/hyper-v: stash the max number of virtual/logical processor kys
2017-06-25 17:06 ` [PATCH 03/10] x86/hyper-v: make hv_do_hypercall() inline kys
2017-07-17 15:21 ` Greg KH [this message]
2017-06-25 17:06 ` [PATCH 04/10] x86/hyper-v: fast hypercall implementation kys
2017-06-25 17:06 ` [PATCH 05/10] hyper-v: use fast hypercall for HVCALL_SIGNAL_EVENT kys
2017-06-25 17:06 ` [PATCH 06/10] x86/hyper-v: implement rep hypercalls kys
2017-06-25 17:06 ` [PATCH 07/10] hyper-v: globalize vp_index kys
2017-06-25 17:06 ` [PATCH 08/10] x86/hyper-v: use hypercall for remote TLB flush kys
2017-06-26 6:33 ` kbuild test robot
2017-06-26 8:14 ` Vitaly Kuznetsov
2017-06-26 21:00 ` KY Srinivasan
2017-07-01 0:17 ` kbuild test robot
2017-06-25 17:06 ` [PATCH 09/10] x86/hyper-v: support extended CPU ranges for TLB flush hypercalls kys
2017-06-25 17:06 ` [PATCH 10/10] tracing/hyper-v: trace hyperv_mmu_flush_tlb_others() kys
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