Messages in this thread | | | From | "Michael Kelley (EOSG)" <> | Subject | RE: [PATCH 2/4] x86/hyper-v: use 'fast' hypercall for HVCALL_SEND_IPI | Date | Mon, 25 Jun 2018 23:54:25 +0000 |
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> -----Original Message----- > From: Vitaly Kuznetsov <vkuznets@redhat.com> > Sent: Friday, June 22, 2018 10:06 AM > To: x86@kernel.org > Cc: devel@linuxdriverproject.org; linux-kernel@vger.kernel.org; KY Srinivasan > <kys@microsoft.com>; Haiyang Zhang <haiyangz@microsoft.com>; Stephen Hemminger > <sthemmin@microsoft.com>; Thomas Gleixner <tglx@linutronix.de>; Ingo Molnar > <mingo@redhat.com>; H. Peter Anvin <hpa@zytor.com>; Tianyu Lan > <Tianyu.Lan@microsoft.com>; Michael Kelley (EOSG) <Michael.H.Kelley@microsoft.com> > Subject: [PATCH 2/4] x86/hyper-v: use 'fast' hypercall for HVCALL_SEND_IPI > > Current Hyper-V TLFS (v5.0b) claims that HvCallSendSyntheticClusterIpi > hypercall can't be 'fast' (passing parameters through registers) but > apparently this is not true, Windows always uses 'fast' version. We can > do the same in Linux too. > > Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
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