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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id v10-20020a5d4b0a000000b0030789698eebsm12134017wrq.89.2023.06.06.02.48.34 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Jun 2023 02:48:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1686044915; x=1688636915; 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=veMFa2sz3JxyfIJgkdTIpGyiMWGxHlB0Jzb6VvKqky4=; b=VvtTjJ2GGoyRLwIJs/4xMq23A+QLX+gd7xUu9dGPgL6CznEjhzV50VEE4TECl3PTgp LvLykmWo6Xcx8p2FRqarQLFwrA+bXjiLaqnh1AO/zPjeYExFgrDCGD7S+Ae+ssmfDiKS ZXf77Qt0/squoDcY9NASoHwL7sxem2REQgC51C5FsNL9zqEDl6/nFB7Rqz476OvzWCS0 VsVZTjL9dhrVDyPyWIlSjLk2GWP5Bdb58S5LS6aH2uuyiwj53TBYrOiWk3TB7yH3lGhc XQEs6J8WumSU7IFBa45Kl8vPEPnFPoa/87+awD/XMXobw8cmi66R6jtJ504uZVOBMfkE Cb0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686044915; x=1688636915; 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=veMFa2sz3JxyfIJgkdTIpGyiMWGxHlB0Jzb6VvKqky4=; b=IRnZtn5bIJR9yhEDwLJ2CDhNMbpxlSlJSdYrlUFei+AGCW8s85cm+GVkT2Socq9Ha1 8bl8ti6Wes4W83lXtR/ujax0H3FX+9AsKoFdBzQY5UBRtgWZyLsSrmVd+4ADai8DkuHL Mgd+lPtBRUaIBxqDF2jyc7aJOFtOjZIvaEh4sWlLeUum+/EYYV/Yv/CTOTAbB0Wiz5t8 FL/X2jT3C/vvUyzB/Oxiry7XhEiSViee29D3hv0rnafWvBwZD4d7uf7YPSeefkJgvFQV J0dltqVfQCH4Vp7KETiHtfWt6R3Eu4sqGJ10z/4DGiLdX/tfMx7L/kLxe0RQiZ4n8rDG rxWw== X-Gm-Message-State: AC+VfDzixUNOgEfEXxTm01+dRlZpw568G2XIo0e/pB9ZVvPB91YHLB6v WhdhobkLw2FUljbswfU77UnFo283tYV8GoWUnLo= X-Google-Smtp-Source: ACHHUZ6MEb6OhbaBTaH3NsTV70FVhig7ULK9vZe67chZOwinyqmCAPtHo2kFUfHeefjoRpBUu4RVAA== X-Received: by 2002:a5d:40d2:0:b0:306:3f97:4847 with SMTP id b18-20020a5d40d2000000b003063f974847mr1600681wrq.65.1686044915176; Tue, 06 Jun 2023 02:48:35 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 40/42] target/arm: allow DC CVA[D]P in user mode emulation Date: Tue, 6 Jun 2023 10:48:12 +0100 Message-Id: <20230606094814.3581397-41-peter.maydell@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230606094814.3581397-1-peter.maydell@linaro.org> References: <20230606094814.3581397-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::42e; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x42e.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1686045224446100011 Content-Type: text/plain; charset="utf-8" From: Zhuojia Shen DC CVAP and DC CVADP instructions can be executed in EL0 on Linux, either directly when SCTLR_EL1.UCI =3D=3D 1 or emulated by the kernel (see user_cache_maint_handler() in arch/arm64/kernel/traps.c). This patch enables execution of the two instructions in user mode emulation. Signed-off-by: Zhuojia Shen Reviewed-by: Peter Maydell Reviewed-by: Richard Henderson Signed-off-by: Peter Maydell --- target/arm/helper.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index 0b7fd2e7e6c..d4bee43bd01 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -7405,7 +7405,6 @@ static const ARMCPRegInfo rndr_reginfo[] =3D { .access =3D PL0_R, .readfn =3D rndr_readfn }, }; =20 -#ifndef CONFIG_USER_ONLY static void dccvap_writefn(CPUARMState *env, const ARMCPRegInfo *opaque, uint64_t value) { @@ -7420,6 +7419,7 @@ static void dccvap_writefn(CPUARMState *env, const AR= MCPRegInfo *opaque, /* This won't be crossing page boundaries */ haddr =3D probe_read(env, vaddr, dline_size, mem_idx, GETPC()); if (haddr) { +#ifndef CONFIG_USER_ONLY =20 ram_addr_t offset; MemoryRegion *mr; @@ -7430,6 +7430,7 @@ static void dccvap_writefn(CPUARMState *env, const AR= MCPRegInfo *opaque, if (mr) { memory_region_writeback(mr, offset, dline_size); } +#endif /*CONFIG_USER_ONLY*/ } } =20 @@ -7448,7 +7449,6 @@ static const ARMCPRegInfo dcpodp_reg[] =3D { .fgt =3D FGT_DCCVADP, .accessfn =3D aa64_cacheop_poc_access, .writefn =3D dccvap_writefn }, }; -#endif /*CONFIG_USER_ONLY*/ =20 static CPAccessResult access_aa64_tid5(CPUARMState *env, const ARMCPRegInf= o *ri, bool isread) @@ -9092,7 +9092,6 @@ void register_cp_regs_for_features(ARMCPU *cpu) if (cpu_isar_feature(aa64_tlbios, cpu)) { define_arm_cp_regs(cpu, tlbios_reginfo); } -#ifndef CONFIG_USER_ONLY /* Data Cache clean instructions up to PoP */ if (cpu_isar_feature(aa64_dcpop, cpu)) { define_one_arm_cp_reg(cpu, dcpop_reg); @@ -9101,7 +9100,6 @@ void register_cp_regs_for_features(ARMCPU *cpu) define_one_arm_cp_reg(cpu, dcpodp_reg); } } -#endif /*CONFIG_USER_ONLY*/ =20 /* * If full MTE is enabled, add all of the system registers. --=20 2.34.1