From patchwork Tue May 20 01:29:50 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibo Mao X-Patchwork-Id: 891421 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id EC998AD4B; Tue, 20 May 2025 01:30:00 +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=1747704604; cv=none; b=QTTpWaUkhtjEwVsbXtejjlPuOlheZyQ261UEOOD4QGYwpHAFE2k7uANKQjBFlRrwsux+qavUF027QkVpsHWyrPuyD/d3ymkdaaIAO26T9cNTrrx53Ocn00jqiqlom+rfyH5dhpjNiWk21BfncIoqu2Lr2BYAfoY/89uf32KKAa0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747704604; c=relaxed/simple; bh=lLgyxHLN0HABypQaaKZ0ZY1XaCd2eLBbA4OldzWkMuI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=gNDscIndXxSRpNcxiRO4RwurqTejOLqEq72/D9YqSbrH7jesGCFBqnNVJHAfXZvyBcUC+JFaHJOln2zi4bbqbhNokNeJ61TK6VnvTX4zT+24t3Dx8QYc38FIzCmMrMauDdn9ldeYPfnNeivzghTWa9l4E4lF08zvytADVsS53ag= 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 _____8Bx22oX2ytoV8zyAA--.30047S3; Tue, 20 May 2025 09:29:59 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDxPcUS2ytoy1ziAA--.54307S3; Tue, 20 May 2025 09:29:58 +0800 (CST) From: Bibo Mao To: Paolo Bonzini , Huacai Chen , Sean Christopherson Cc: Shuah Khan , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, Huacai Chen Subject: [PATCH v12 1/5] KVM: selftests: Add VM_MODE_P47V47_16K VM mode Date: Tue, 20 May 2025 09:29:50 +0800 Message-Id: <20250520012954.1785088-2-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250520012954.1785088-1-maobibo@loongson.cn> References: <20250520012954.1785088-1-maobibo@loongson.cn> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: qMiowMDxPcUS2ytoy1ziAA--.54307S3 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== On LoongArch system, 16K page is used in general and GVA width is 47 bit while GPA width is 47 bit also, here add new VM mode VM_MODE_P47V47_16K. Signed-off-by: Bibo Mao Signed-off-by: Huacai Chen --- tools/testing/selftests/kvm/include/kvm_util.h | 1 + tools/testing/selftests/kvm/lib/kvm_util.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index 373912464fb4..f8faed8c8024 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -177,6 +177,7 @@ enum vm_guest_mode { VM_MODE_P36V48_4K, VM_MODE_P36V48_16K, VM_MODE_P36V48_64K, + VM_MODE_P47V47_16K, VM_MODE_P36V47_16K, NUM_VM_MODES, }; diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index 815bc45dd8dc..5649cf2f40e8 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -222,6 +222,7 @@ const char *vm_guest_mode_string(uint32_t i) [VM_MODE_P36V48_4K] = "PA-bits:36, VA-bits:48, 4K pages", [VM_MODE_P36V48_16K] = "PA-bits:36, VA-bits:48, 16K pages", [VM_MODE_P36V48_64K] = "PA-bits:36, VA-bits:48, 64K pages", + [VM_MODE_P47V47_16K] = "PA-bits:47, VA-bits:47, 16K pages", [VM_MODE_P36V47_16K] = "PA-bits:36, VA-bits:47, 16K pages", }; _Static_assert(sizeof(strings)/sizeof(char *) == NUM_VM_MODES, @@ -248,6 +249,7 @@ const struct vm_guest_mode_params vm_guest_mode_params[] = { [VM_MODE_P36V48_4K] = { 36, 48, 0x1000, 12 }, [VM_MODE_P36V48_16K] = { 36, 48, 0x4000, 14 }, [VM_MODE_P36V48_64K] = { 36, 48, 0x10000, 16 }, + [VM_MODE_P47V47_16K] = { 47, 47, 0x4000, 14 }, [VM_MODE_P36V47_16K] = { 36, 47, 0x4000, 14 }, }; _Static_assert(sizeof(vm_guest_mode_params)/sizeof(struct vm_guest_mode_params) == NUM_VM_MODES, @@ -319,6 +321,7 @@ struct kvm_vm *____vm_create(struct vm_shape shape) case VM_MODE_P36V48_16K: vm->pgtable_levels = 4; break; + case VM_MODE_P47V47_16K: case VM_MODE_P36V47_16K: vm->pgtable_levels = 3; break;