From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 13532C7EE23 for ; Wed, 31 May 2023 04:11:35 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q4D4A-0007Yg-FJ; Wed, 31 May 2023 00:04:06 -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 1q4D44-0007Lt-CM for qemu-devel@nongnu.org; Wed, 31 May 2023 00:04:00 -0400 Received: from mail-oi1-x22e.google.com ([2607:f8b0:4864:20::22e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1q4D41-0006Bq-If for qemu-devel@nongnu.org; Wed, 31 May 2023 00:04:00 -0400 Received: by mail-oi1-x22e.google.com with SMTP id 5614622812f47-39a505b901dso125299b6e.0 for ; Tue, 30 May 2023 21:03:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1685505836; x=1688097836; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=/cR/peA90/m8AWfSpNA4WQLXA6g1Wt3Wt5txPWSbWq0=; b=uEoZSfOaNWJv9Cz57ASjmMMu6dy+BG2uj7aCstHboVlctleL6x9ICzWri6C38RnS/Z mJfCeU0I5qOpg3pnYDTT1W3i9UW4AtrDuXrvt4yUyyx8OaoPdIlTihkaYfIIZctZydrs CSQklaR0t6r1mbqvkBGC38MGA+KVdSMeBsWIrKUJEh1v0ljMPVNdRAbc+ejfsJnQAaDT OcdBHWxwbPmfgLvpLG2ReIOtbbTOL62j1VVzzjEvdnCfxV09Z/6Gj8W34KI8S9MhfS4v YDJhqyOnmSXLbKaNkbhGJc6SVo1VlhbsjcbqxFTRAM9F3kJXZ7h6zvKLaxfIw7yXbwgc hE9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685505836; x=1688097836; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=/cR/peA90/m8AWfSpNA4WQLXA6g1Wt3Wt5txPWSbWq0=; b=Qo5VH2gE7J26rgU5Hakte4FjP8pRb7pCurrvdxeYnlXijP7Elsk1OFXj7QhLJAXDSn PCjTHM9/wJ+XgGJfnjr82jgZHkS0L6mdQLGBNTglY2Q7q3oDG7LeQ50G3jDnX43wTPML kADLF6mkRFU3+JWOpuCJButZy+t2SWSB2Msn9qG3ImuzHLq+Rssja09sJQ40VLTHZ6Q3 VLvUiZv9QRP/5DntcOvXl1bP6HB6EBj+yLtuYOeO/amXh1MDmwKWd6ul65msvCjKnVsC xW5WgJuF1hs3fx8kvUnRmxRgKMidPAFSmwMCbjGgbebf1ztghcviVnFeGcXbEZb+zQ54 /OKQ== X-Gm-Message-State: AC+VfDxBNmP8ZAZ0Arh8uqfpjEW/BhTEAwVNYr7kZxATznwHIdB1DC8B lZq4fHUCofeKQz6Fw4XEjfo1LzwAHAC25Df0zMk= X-Google-Smtp-Source: ACHHUZ7JNHdbnQqP2T3ypwLVdRBaw/dK9qKU1xc/6CKeTygQsWwCWyKINLKox4s6KYIkirj3kjck3w== X-Received: by 2002:a05:6808:1144:b0:398:26f0:67a9 with SMTP id u4-20020a056808114400b0039826f067a9mr3422322oiu.55.1685505836156; Tue, 30 May 2023 21:03:56 -0700 (PDT) Received: from stoup.. ([2602:ae:1598:4c01:1cd:ec7a:a720:ce9a]) by smtp.gmail.com with ESMTPSA id j12-20020a63fc0c000000b005348af1b84csm194814pgi.74.2023.05.30.21.03.55 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 May 2023 21:03:55 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v3 32/48] tcg: Spit out exec/translation-block.h Date: Tue, 30 May 2023 21:03:14 -0700 Message-Id: <20230531040330.8950-33-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230531040330.8950-1-richard.henderson@linaro.org> References: <20230531040330.8950-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::22e; envelope-from=richard.henderson@linaro.org; helo=mail-oi1-x22e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This is all that is required by tcg/ from exec-all.h. Signed-off-by: Richard Henderson --- include/exec/exec-all.h | 135 +-------------------------- include/exec/translation-block.h | 152 +++++++++++++++++++++++++++++++ tcg/tcg-op-ldst.c | 2 +- 3 files changed, 154 insertions(+), 135 deletions(-) create mode 100644 include/exec/translation-block.h diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index a09d754624..f01c7d57e8 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -24,20 +24,9 @@ #ifdef CONFIG_TCG #include "exec/cpu_ldst.h" #endif -#include "qemu/interval-tree.h" +#include "exec/translation-block.h" #include "qemu/clang-tsa.h" -/* Page tracking code uses ram addresses in system mode, and virtual - addresses in userspace mode. Define tb_page_addr_t to be an appropriate - type. */ -#if defined(CONFIG_USER_ONLY) -typedef vaddr tb_page_addr_t; -#define TB_PAGE_ADDR_FMT "%" VADDR_PRIx -#else -typedef ram_addr_t tb_page_addr_t; -#define TB_PAGE_ADDR_FMT RAM_ADDR_FMT -#endif - /** * cpu_unwind_state_data: * @cpu: the cpu context @@ -478,8 +467,6 @@ int probe_access_full(CPUArchState *env, target_ulong addr, int size, CPUTLBEntryFull **pfull, uintptr_t retaddr); #endif -#define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */ - /* Estimated block size for TB allocation. */ /* ??? The following is based on a 2015 survey of x86_64 host output. Better would seem to be some sort of dynamically sized TB array, @@ -490,126 +477,6 @@ int probe_access_full(CPUArchState *env, target_ulong addr, int size, #define CODE_GEN_AVG_BLOCK_SIZE 150 #endif -/* - * Translation Cache-related fields of a TB. - * This struct exists just for convenience; we keep track of TB's in a binary - * search tree, and the only fields needed to compare TB's in the tree are - * @ptr and @size. - * Note: the address of search data can be obtained by adding @size to @ptr. - */ -struct tb_tc { - const void *ptr; /* pointer to the translated code */ - size_t size; -}; - -struct TranslationBlock { - /* - * Guest PC corresponding to this block. This must be the true - * virtual address. Therefore e.g. x86 stores EIP + CS_BASE, and - * targets like Arm, MIPS, HP-PA, which reuse low bits for ISA or - * privilege, must store those bits elsewhere. - * - * If CF_PCREL, the opcodes for the TranslationBlock are written - * such that the TB is associated only with the physical page and - * may be run in any virtual address context. In this case, PC - * must always be taken from ENV in a target-specific manner. - * Unwind information is taken as offsets from the page, to be - * deposited into the "current" PC. - */ - vaddr pc; - - /* - * Target-specific data associated with the TranslationBlock, e.g.: - * x86: the original user, the Code Segment virtual base, - * arm: an extension of tb->flags, - * s390x: instruction data for EXECUTE, - * sparc: the next pc of the instruction queue (for delay slots). - */ - uint64_t cs_base; - - uint32_t flags; /* flags defining in which context the code was generated */ - uint32_t cflags; /* compile flags */ - -/* Note that TCG_MAX_INSNS is 512; we validate this match elsewhere. */ -#define CF_COUNT_MASK 0x000001ff -#define CF_NO_GOTO_TB 0x00000200 /* Do not chain with goto_tb */ -#define CF_NO_GOTO_PTR 0x00000400 /* Do not chain with goto_ptr */ -#define CF_SINGLE_STEP 0x00000800 /* gdbstub single-step in effect */ -#define CF_LAST_IO 0x00008000 /* Last insn may be an IO access. */ -#define CF_MEMI_ONLY 0x00010000 /* Only instrument memory ops */ -#define CF_USE_ICOUNT 0x00020000 -#define CF_INVALID 0x00040000 /* TB is stale. Set with @jmp_lock held */ -#define CF_PARALLEL 0x00080000 /* Generate code for a parallel context */ -#define CF_NOIRQ 0x00100000 /* Generate an uninterruptible TB */ -#define CF_PCREL 0x00200000 /* Opcodes in TB are PC-relative */ -#define CF_CLUSTER_MASK 0xff000000 /* Top 8 bits are cluster ID */ -#define CF_CLUSTER_SHIFT 24 - - /* Per-vCPU dynamic tracing state used to generate this TB */ - uint32_t trace_vcpu_dstate; - - /* - * Above fields used for comparing - */ - - /* size of target code for this block (1 <= size <= TARGET_PAGE_SIZE) */ - uint16_t size; - uint16_t icount; - - struct tb_tc tc; - - /* - * Track tb_page_addr_t intervals that intersect this TB. - * For user-only, the virtual addresses are always contiguous, - * and we use a unified interval tree. For system, we use a - * linked list headed in each PageDesc. Within the list, the lsb - * of the previous pointer tells the index of page_next[], and the - * list is protected by the PageDesc lock(s). - */ -#ifdef CONFIG_USER_ONLY - IntervalTreeNode itree; -#else - uintptr_t page_next[2]; - tb_page_addr_t page_addr[2]; -#endif - - /* jmp_lock placed here to fill a 4-byte hole. Its documentation is below */ - QemuSpin jmp_lock; - - /* The following data are used to directly call another TB from - * the code of this one. This can be done either by emitting direct or - * indirect native jump instructions. These jumps are reset so that the TB - * just continues its execution. The TB can be linked to another one by - * setting one of the jump targets (or patching the jump instruction). Only - * two of such jumps are supported. - */ -#define TB_JMP_OFFSET_INVALID 0xffff /* indicates no jump generated */ - uint16_t jmp_reset_offset[2]; /* offset of original jump target */ - uint16_t jmp_insn_offset[2]; /* offset of direct jump insn */ - uintptr_t jmp_target_addr[2]; /* target address */ - - /* - * Each TB has a NULL-terminated list (jmp_list_head) of incoming jumps. - * Each TB can have two outgoing jumps, and therefore can participate - * in two lists. The list entries are kept in jmp_list_next[2]. The least - * significant bit (LSB) of the pointers in these lists is used to encode - * which of the two list entries is to be used in the pointed TB. - * - * List traversals are protected by jmp_lock. The destination TB of each - * outgoing jump is kept in jmp_dest[] so that the appropriate jmp_lock - * can be acquired from any origin TB. - * - * jmp_dest[] are tagged pointers as well. The LSB is set when the TB is - * being invalidated, so that no further outgoing jumps from it can be set. - * - * jmp_lock also protects the CF_INVALID cflag; a jump must not be chained - * to a destination TB that has CF_INVALID set. - */ - uintptr_t jmp_list_head; - uintptr_t jmp_list_next[2]; - uintptr_t jmp_dest[2]; -}; - /* Hide the qatomic_read to make code a little easier on the eyes */ static inline uint32_t tb_cflags(const TranslationBlock *tb) { diff --git a/include/exec/translation-block.h b/include/exec/translation-block.h new file mode 100644 index 0000000000..37aa979e20 --- /dev/null +++ b/include/exec/translation-block.h @@ -0,0 +1,152 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Definition of TranslationBlock. + * Copyright (c) 2003 Fabrice Bellard + */ + +#ifndef EXEC_TRANSLATION_BLOCK_H +#define EXEC_TRANSLATION_BLOCK_H + +#include "qemu/atomic.h" +#include "qemu/thread.h" +#include "qemu/interval-tree.h" +#include "exec/cpu-common.h" +#include "exec/target_page.h" + +/* + * Page tracking code uses ram addresses in system mode, and virtual + * addresses in userspace mode. Define tb_page_addr_t to be an + * appropriate type. + */ +#if defined(CONFIG_USER_ONLY) +typedef vaddr tb_page_addr_t; +#define TB_PAGE_ADDR_FMT "%" VADDR_PRIx +#else +typedef ram_addr_t tb_page_addr_t; +#define TB_PAGE_ADDR_FMT RAM_ADDR_FMT +#endif + +/* + * Translation Cache-related fields of a TB. + * This struct exists just for convenience; we keep track of TB's in a binary + * search tree, and the only fields needed to compare TB's in the tree are + * @ptr and @size. + * Note: the address of search data can be obtained by adding @size to @ptr. + */ +struct tb_tc { + const void *ptr; /* pointer to the translated code */ + size_t size; +}; + +struct TranslationBlock { + /* + * Guest PC corresponding to this block. This must be the true + * virtual address. Therefore e.g. x86 stores EIP + CS_BASE, and + * targets like Arm, MIPS, HP-PA, which reuse low bits for ISA or + * privilege, must store those bits elsewhere. + * + * If CF_PCREL, the opcodes for the TranslationBlock are written + * such that the TB is associated only with the physical page and + * may be run in any virtual address context. In this case, PC + * must always be taken from ENV in a target-specific manner. + * Unwind information is taken as offsets from the page, to be + * deposited into the "current" PC. + */ + vaddr pc; + + /* + * Target-specific data associated with the TranslationBlock, e.g.: + * x86: the original user, the Code Segment virtual base, + * arm: an extension of tb->flags, + * s390x: instruction data for EXECUTE, + * sparc: the next pc of the instruction queue (for delay slots). + */ + uint64_t cs_base; + + uint32_t flags; /* flags defining in which context the code was generated */ + uint32_t cflags; /* compile flags */ + +/* Note that TCG_MAX_INSNS is 512; we validate this match elsewhere. */ +#define CF_COUNT_MASK 0x000001ff +#define CF_NO_GOTO_TB 0x00000200 /* Do not chain with goto_tb */ +#define CF_NO_GOTO_PTR 0x00000400 /* Do not chain with goto_ptr */ +#define CF_SINGLE_STEP 0x00000800 /* gdbstub single-step in effect */ +#define CF_LAST_IO 0x00008000 /* Last insn may be an IO access. */ +#define CF_MEMI_ONLY 0x00010000 /* Only instrument memory ops */ +#define CF_USE_ICOUNT 0x00020000 +#define CF_INVALID 0x00040000 /* TB is stale. Set with @jmp_lock held */ +#define CF_PARALLEL 0x00080000 /* Generate code for a parallel context */ +#define CF_NOIRQ 0x00100000 /* Generate an uninterruptible TB */ +#define CF_PCREL 0x00200000 /* Opcodes in TB are PC-relative */ +#define CF_CLUSTER_MASK 0xff000000 /* Top 8 bits are cluster ID */ +#define CF_CLUSTER_SHIFT 24 + + /* Per-vCPU dynamic tracing state used to generate this TB */ + uint32_t trace_vcpu_dstate; + + /* + * Above fields used for comparing + */ + + /* size of target code for this block (1 <= size <= TARGET_PAGE_SIZE) */ + uint16_t size; + uint16_t icount; + + struct tb_tc tc; + + /* + * Track tb_page_addr_t intervals that intersect this TB. + * For user-only, the virtual addresses are always contiguous, + * and we use a unified interval tree. For system, we use a + * linked list headed in each PageDesc. Within the list, the lsb + * of the previous pointer tells the index of page_next[], and the + * list is protected by the PageDesc lock(s). + */ +#ifdef CONFIG_USER_ONLY + IntervalTreeNode itree; +#else + uintptr_t page_next[2]; + tb_page_addr_t page_addr[2]; +#endif + + /* jmp_lock placed here to fill a 4-byte hole. Its documentation is below */ + QemuSpin jmp_lock; + + /* The following data are used to directly call another TB from + * the code of this one. This can be done either by emitting direct or + * indirect native jump instructions. These jumps are reset so that the TB + * just continues its execution. The TB can be linked to another one by + * setting one of the jump targets (or patching the jump instruction). Only + * two of such jumps are supported. + */ +#define TB_JMP_OFFSET_INVALID 0xffff /* indicates no jump generated */ + uint16_t jmp_reset_offset[2]; /* offset of original jump target */ + uint16_t jmp_insn_offset[2]; /* offset of direct jump insn */ + uintptr_t jmp_target_addr[2]; /* target address */ + + /* + * Each TB has a NULL-terminated list (jmp_list_head) of incoming jumps. + * Each TB can have two outgoing jumps, and therefore can participate + * in two lists. The list entries are kept in jmp_list_next[2]. The least + * significant bit (LSB) of the pointers in these lists is used to encode + * which of the two list entries is to be used in the pointed TB. + * + * List traversals are protected by jmp_lock. The destination TB of each + * outgoing jump is kept in jmp_dest[] so that the appropriate jmp_lock + * can be acquired from any origin TB. + * + * jmp_dest[] are tagged pointers as well. The LSB is set when the TB is + * being invalidated, so that no further outgoing jumps from it can be set. + * + * jmp_lock also protects the CF_INVALID cflag; a jump must not be chained + * to a destination TB that has CF_INVALID set. + */ + uintptr_t jmp_list_head; + uintptr_t jmp_list_next[2]; + uintptr_t jmp_dest[2]; +}; + +/* The alignment given to TranslationBlock during allocation. */ +#define CODE_GEN_ALIGN 16 + +#endif /* EXEC_TRANSLATION_BLOCK_H */ diff --git a/tcg/tcg-op-ldst.c b/tcg/tcg-op-ldst.c index 46a5977b35..a4f51bfb6e 100644 --- a/tcg/tcg-op-ldst.c +++ b/tcg/tcg-op-ldst.c @@ -23,11 +23,11 @@ */ #include "qemu/osdep.h" -#include "exec/exec-all.h" #include "tcg/tcg.h" #include "tcg/tcg-temp-internal.h" #include "tcg/tcg-op-common.h" #include "tcg/tcg-mo.h" +#include "exec/translation-block.h" #include "exec/plugin-gen.h" #include "tcg-internal.h" -- 2.34.1