From patchwork Sat May 6 02:24:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tianrui Zhao X-Patchwork-Id: 1777846 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4QCrxf0WN2z214P for ; Sat, 6 May 2023 12:25:25 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pv7bF-0008KG-RV; Fri, 05 May 2023 22:24:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pv7bD-0008Ik-21 for qemu-devel@nongnu.org; Fri, 05 May 2023 22:24:39 -0400 Received: from mail.loongson.cn ([114.242.206.163] helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pv7bA-00051P-EN for qemu-devel@nongnu.org; Fri, 05 May 2023 22:24:38 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8DxCepbulVk7okFAA--.9068S3; Sat, 06 May 2023 10:24:27 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8DxOLZXulVkj9RMAA--.9112S3; Sat, 06 May 2023 10:24:26 +0800 (CST) From: Tianrui Zhao To: qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, Paolo Bonzini , gaosong@loongson.cn, "Michael S . Tsirkin" , Cornelia Huck , maobibo@loongson.cn, zhaotianrui@loongson.cn, philmd@linaro.org, richard.henderson@linaro.org, peter.maydell@linaro.org Subject: [PATCH RFC v3 1/9] linux-headers: Add KVM headers for loongarch Date: Sat, 6 May 2023 10:24:14 +0800 Message-Id: <20230506022422.59442-2-zhaotianrui@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20230506022422.59442-1-zhaotianrui@loongson.cn> References: <20230506022422.59442-1-zhaotianrui@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8DxOLZXulVkj9RMAA--.9112S3 X-CM-SenderInfo: p2kd03xldq233l6o00pqjv00gofq/ X-Coremail-Antispam: 1Uk129KBjvJXoWxuF4Uuw43uFW5XFy3Jr18Krg_yoWrAF4fpF 1UAr43Gr40qrn3u3yxGF1UZr13WF4fAa1v9FyxW3yIyr1j93s5Jw1qkFs8GF98Jr18C34x ZF1Yyw1j9F92y3DanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUj1kv1TuYvTs0mT0YCTnIWj qI5I8CrVACY4xI64kE6c02F40Ex7xfYxn0WfASr-VFAUDa7-sFnT9fnUUIcSsGvfJTRUUU bn8Fc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wA2ocxC64kIII0Yj41l84x0c7CEw4 AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26r1j6r1xM28EF7xvwVC0I7IYx2IY6xkF 7I0E14v26r1j6r4UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7 CjxVAFwI0_Gr1j6F4UJwAS0I0E0xvYzxvE52x082IY62kv0487Mc804VCY07AIYIkI8VC2 zVCFFI0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VCjz48v1sIEY20_WwAm72CE4IkC6x 0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2Ij64vIr41l42xK82IY6x8ErcxF aVAv8VWrMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxV Cjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY 6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWUJVW8JwCI42IY6x AIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY 1x0267AKxVWUJVW8JbIYCTnIWIevJa73UjIFyTuYvj4RC_MaUUUUU Received-SPF: pass client-ip=114.242.206.163; envelope-from=zhaotianrui@loongson.cn; helo=loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org This patch is only a placeholder now, which is used to show some kvm structures and macros for reviewers. And it will be replaced by using update-linux-headers.sh when the linux loongarch kvm patches are accepted. Signed-off-by: Tianrui Zhao --- linux-headers/asm-loongarch/kvm.h | 99 +++++++++++++++++++++++++++++++ linux-headers/linux/kvm.h | 9 +++ 2 files changed, 108 insertions(+) create mode 100644 linux-headers/asm-loongarch/kvm.h diff --git a/linux-headers/asm-loongarch/kvm.h b/linux-headers/asm-loongarch/kvm.h new file mode 100644 index 0000000000..6420f59f9e --- /dev/null +++ b/linux-headers/asm-loongarch/kvm.h @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Copyright (C) 2023 Loongson Technology Corporation Limited + */ + +#ifndef __UAPI_ASM_LOONGARCH_KVM_H +#define __UAPI_ASM_LOONGARCH_KVM_H + +#include + +/* + * KVM Loongarch specific structures and definitions. + */ + +#define __KVM_HAVE_READONLY_MEM + +#define KVM_COALESCED_MMIO_PAGE_OFFSET 1 + +/* + * for KVM_GET_REGS and KVM_SET_REGS + */ +struct kvm_regs { + /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */ + __u64 gpr[32]; + __u64 pc; +}; + +/* + * for KVM_GET_FPU and KVM_SET_FPU + */ +struct kvm_fpu { + __u32 fcsr; + __u32 none; + __u64 fcc; /* 8x8 */ + struct kvm_fpureg { + __u64 val64[4]; + } fpr[32]; +}; + +/* + * For LoongArch, we use KVM_SET_ONE_REG and KVM_GET_ONE_REG to access various + * registers. The id field is broken down as follows: + * + * bits[63..52] - As per linux/kvm.h + * bits[51..32] - Must be zero. + * bits[31..16] - Register set. + * + * Register set = 0: GP registers from kvm_regs (see definitions below). + * + * Register set = 1: CSR registers. + * + * Register set = 2: KVM specific registers (see definitions below). + * + * Register set = 3: FPU / SIMD registers (see definitions below). + * + * Other sets registers may be added in the future. Each set would + * have its own identifier in bits[31..16]. + */ + +#define KVM_REG_LOONGARCH_GP (KVM_REG_LOONGARCH | 0x00000ULL) +#define KVM_REG_LOONGARCH_CSR (KVM_REG_LOONGARCH | 0x10000ULL) +#define KVM_REG_LOONGARCH_KVM (KVM_REG_LOONGARCH | 0x20000ULL) +#define KVM_REG_LOONGARCH_FPU (KVM_REG_LOONGARCH | 0x30000ULL) +#define KVM_REG_LOONGARCH_MASK (KVM_REG_LOONGARCH | 0x30000ULL) +#define KVM_CSR_IDX_MASK (0x10000 - 1) + +/* + * KVM_REG_LOONGARCH_KVM - KVM specific control registers. + */ + +#define KVM_REG_LOONGARCH_COUNTER (KVM_REG_LOONGARCH_KVM | KVM_REG_SIZE_U64 | 3) +#define KVM_REG_LOONGARCH_VCPU_RESET (KVM_REG_LOONGARCH_KVM | KVM_REG_SIZE_U64 | 4) + +struct kvm_debug_exit_arch { +}; + +/* for KVM_SET_GUEST_DEBUG */ +struct kvm_guest_debug_arch { +}; + +/* definition of registers in kvm_run */ +struct kvm_sync_regs { +}; + +/* dummy definition */ +struct kvm_sregs { +}; + +struct kvm_loongarch_interrupt { + /* in */ + __u32 cpu; + __u32 irq; +}; + +#define KVM_NR_IRQCHIPS 1 +#define KVM_IRQCHIP_NUM_PINS 64 +#define KVM_MAX_CORES 256 + +#endif /* __UAPI_ASM_LOONGARCH_KVM_H */ diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h index 599de3c6e3..d82e1da7a8 100644 --- a/linux-headers/linux/kvm.h +++ b/linux-headers/linux/kvm.h @@ -264,6 +264,7 @@ struct kvm_xen_exit { #define KVM_EXIT_RISCV_SBI 35 #define KVM_EXIT_RISCV_CSR 36 #define KVM_EXIT_NOTIFY 37 +#define KVM_EXIT_LOONGARCH_IOCSR 38 /* For KVM_EXIT_INTERNAL_ERROR */ /* Emulate instruction failed. */ @@ -336,6 +337,13 @@ struct kvm_run { __u32 len; __u8 is_write; } mmio; + /* KVM_EXIT_LOONGARCH_IOCSR */ + struct { + __u64 phys_addr; + __u8 data[8]; + __u32 len; + __u8 is_write; + } iocsr_io; /* KVM_EXIT_HYPERCALL */ struct { __u64 nr; @@ -1352,6 +1360,7 @@ struct kvm_dirty_tlb { #define KVM_REG_ARM64 0x6000000000000000ULL #define KVM_REG_MIPS 0x7000000000000000ULL #define KVM_REG_RISCV 0x8000000000000000ULL +#define KVM_REG_LOONGARCH 0x9000000000000000ULL #define KVM_REG_SIZE_SHIFT 52 #define KVM_REG_SIZE_MASK 0x00f0000000000000ULL