From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Guo Subject: Re: [PATCH] KVM: PPC: remove mmio_vsx_tx_sx_enabled in PR KVM MMIO emulation Date: Thu, 24 May 2018 17:21:22 +0800 Message-ID: <20180524092122.GD2498@simonLocalRHEL7.x64> References: <1527152486-13843-1-git-send-email-wei.guo.simon@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org To: kvm-ppc@vger.kernel.org Return-path: Content-Disposition: inline In-Reply-To: <1527152486-13843-1-git-send-email-wei.guo.simon@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org Sender: "Linuxppc-dev" List-Id: kvm.vger.kernel.org On Thu, May 24, 2018 at 05:01:26PM +0800, wei.guo.simon@gmail.com wrote: > From: Simon Guo > > Originally PR KVM MMIO emulation uses only 0~31#(5 bits) for VSR > reg number, and use mmio_vsx_tx_sx_enabled field together for > 0~63# VSR regs. > > Currently PR KVM MMIO emulation is reimplemented with analyse_instr() > assistence. analyse_instr() returns 0~63 for VSR register number, so > it is not necessary to use additional mmio_vsx_tx_sx_enabled field > any more. > > This patch extends related reg bits(expand io_gpr to u16 from u8 > and use 6 bits for VSR reg#), so that mmio_vsx_tx_sx_enabled can > be removed. > > Signed-off-by: Simon Guo It applies to HV KVM too. I will correct the commit message in next version. Thanks, - Simon