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b=Pi7GoBFZUcF+3h4BPp8qEYOXeUt3hwT7/nE5DtGw5/a+uYrcM9mg2JX85TXVobBLm NZO374EHJYqz+ciqQaJ5F16mcwxz89SIQyA/HmDxHcoNO88CSKdpoxOgCVdn8LU5DT pVXcUBCVQfP4PYfjA8nPM3WLF+0wy/WzogrTAOokDHUKF21xNaFroIrtM7J/GGILp7 TV+WlrOk01GTpwzQRn4wp+hJwc/p7YbIRexWBDuoQ7otWVuFgbm01NCs5EmLP3wOi6 xJBG/9CXRjj0MVthDfTo4gSs0iGW70v3fVZVG6hJdBN9S2+yLovgfxE4TOl1Pil17X ChIRGHw+mXrYA== Received: from sofa.misterjones.org ([185.219.108.64] helo=why.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1nUPyW-00EsOD-JP; Wed, 16 Mar 2022 09:29:49 +0000 Date: Wed, 16 Mar 2022 09:29:48 +0000 Message-ID: <87czimz1mb.wl-maz@kernel.org> From: Marc Zyngier To: Oliver Upton Subject: Re: [PATCH 1/4] irqchip/gic-v3: Exposes bit values for GICR_CTLR.{IR, CES} In-Reply-To: References: <20220314164044.772709-1-maz@kernel.org> <20220314164044.772709-2-maz@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: oupton@google.com, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, kernel-team@android.com, andre.przywara@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: Andre Przywara , kernel-team@android.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Tue, 15 Mar 2022 23:16:05 +0000, Oliver Upton wrote: > > Hi Marc, > > On Mon, Mar 14, 2022 at 04:40:41PM +0000, Marc Zyngier wrote: > > As we're about to expose GICR_CTLR.{IR,CES} to guests, populate > > the include file with the architectural values. > > > > Signed-off-by: Marc Zyngier > > --- > > include/linux/irqchip/arm-gic-v3.h | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h > > index 12d91f0dedf9..aeb8ced53880 100644 > > --- a/include/linux/irqchip/arm-gic-v3.h > > +++ b/include/linux/irqchip/arm-gic-v3.h > > @@ -127,6 +127,8 @@ > > #define GICR_PIDR2 GICD_PIDR2 > > > > #define GICR_CTLR_ENABLE_LPIS (1UL << 0) > > +#define GICR_CTLR_IR (1UL << 1) > > +#define GICR_CTLR_CES (1UL << 2) > > I think these are backwards (IR is bit 2) How embarrassing... The whole thing only works because we always advertise the two bits together, and that the GIC driver has the same bug. Fortunately, I'm running low on paper bags... ;-) I'll push a fix for that shortly. Thanks, M. -- Without deviation from the norm, progress is not possible. _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm