From nobody Tue Feb 10 08:27:20 2026 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 40BB72C21FC; Wed, 28 Jan 2026 03:03:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769569423; cv=none; b=ZvWoEEmieSTOrWNONxlhjjl4+dN9maoEdKW2aw0QBx+kPeVoUnRGBg5MrBMZ8G17nqujBjOwPjyRYzdiqq038YsfkKvfQpogg9SKtSV+5mfxNzqnf8c83b7k+k8F6YKv5/ud2rNCVEgzvJPKMNa1DgDTg1R91fSXM1r/sKKyAUs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769569423; c=relaxed/simple; bh=gAwny8OZzvfnbjPD3B86e6aAZqp3ru61Y/0DFJxWgm0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=goCvC5qP+8oPiBeKDlHYtDiYCQ/WOpTAnrmXszPVHDK2RdEt9KhdB5o/vds8tBpp2JX6lnlvvfqT1RXQyZEfgLgdhekDUbaqwzFtLSM5wpleyXYU3Wk9mQJXJWgBoJckmLKD3ogM1+xX6GkM+jGbM8GJmf8aUHYshL9ted9DI6k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8Cx58GEfHlp_mINAA--.31763S3; Wed, 28 Jan 2026 11:03:32 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowJDxaeB_fHlpfUg2AA--.40601S4; Wed, 28 Jan 2026 11:03:31 +0800 (CST) From: Bibo Mao To: Huacai Chen , WANG Xuerui , Tianrui Zhao Cc: loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Subject: [PATCH 2/4] LoongArch: KVM: Add msgint registers in function kvm_init_gcsr_flag Date: Wed, 28 Jan 2026 11:03:24 +0800 Message-Id: <20260128030326.3377462-3-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20260128030326.3377462-1-maobibo@loongson.cn> References: <20260128030326.3377462-1-maobibo@loongson.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJDxaeB_fHlpfUg2AA--.40601S4 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Content-Type: text/plain; charset="utf-8" Add flag HW_GCSR with msgint registers in function kvm_init_gcsr_flag(). Signed-off-by: Bibo Mao --- arch/loongarch/include/asm/loongarch.h | 2 +- arch/loongarch/kvm/main.c | 8 ++++++++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/loongarch/include/asm/loongarch.h b/arch/loongarch/includ= e/asm/loongarch.h index 553c4dc7a156..9ca18af11d25 100644 --- a/arch/loongarch/include/asm/loongarch.h +++ b/arch/loongarch/include/asm/loongarch.h @@ -688,8 +688,8 @@ #define LOONGARCH_CSR_ISR1 0xa1 #define LOONGARCH_CSR_ISR2 0xa2 #define LOONGARCH_CSR_ISR3 0xa3 - #define LOONGARCH_CSR_IRR 0xa4 +#define LOONGARCH_CSR_IPR 0xa5 =20 #define LOONGARCH_CSR_PRID 0xc0 =20 diff --git a/arch/loongarch/kvm/main.c b/arch/loongarch/kvm/main.c index 80ea63d465b8..3ecd7de110d7 100644 --- a/arch/loongarch/kvm/main.c +++ b/arch/loongarch/kvm/main.c @@ -192,6 +192,14 @@ static void kvm_init_gcsr_flag(void) set_gcsr_sw_flag(LOONGARCH_CSR_PERFCNTR2); set_gcsr_sw_flag(LOONGARCH_CSR_PERFCTRL3); set_gcsr_sw_flag(LOONGARCH_CSR_PERFCNTR3); + + if (cpu_has_msgint) { + set_gcsr_hw_flag(LOONGARCH_CSR_ISR0); + set_gcsr_hw_flag(LOONGARCH_CSR_ISR1); + set_gcsr_hw_flag(LOONGARCH_CSR_ISR2); + set_gcsr_hw_flag(LOONGARCH_CSR_ISR3); + set_gcsr_hw_flag(LOONGARCH_CSR_IPR); + } } =20 static void kvm_update_vpid(struct kvm_vcpu *vcpu, int cpu) --=20 2.39.3