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[82.218.84.190]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a9a913706d3sm601019066b.134.2024.10.24.03.28.38 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 24 Oct 2024 03:28:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=philjordan-eu.20230601.gappssmtp.com; s=20230601; t=1729765721; x=1730370521; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=IOlf/wzEJ+wM7g5BTurCACeEWddAq/2jF0kyAkwof9o=; b=vAA6hRr3XWSmin7ZVcfpnmVNjqHtCHIbbQRY0AtipYtqiGTfjGKnYZcCM/Q16W0x75 kVhRXxwgbMLEya4K/nwiZ2FzbAlGIXUusFTfCC2Eqklhk0PH+N2DHV4lM4bth7d2/Kk2 bemb2UzU7LI6Me4Eg1fXbAj0v7SQxl6ga0ebmMLnMDql3IpXSAeSw746Cl4b4PX6+qne M6Y+0YORPmKwAKeio1+w7ikPvlactifOAlJ1OCcIJ3rvzKZzLoJHG8Jt5EigkmgJ3XLV 7UEiFp+oSQjyPbgIhkPF3uvUHG7pdNb2GxD7+OxG79gbbseKkYbtYnk1VdFeFlKEaFxI 8BPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729765721; x=1730370521; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=IOlf/wzEJ+wM7g5BTurCACeEWddAq/2jF0kyAkwof9o=; b=huZUBAi09c9DsfZQ3XHWADEviZhDrYoKdAjy9hPCZYXUuhlTaSnNeuULwDAAV8D5RG vNmYjCOdsRdOkImeWSzwhYCMBYrx4jXl/GV2Oi0aEo37Sh3s2/3CPT6FdOKf4hWyu3cS R6W8q2fRp/DYMmSwBeJCc1josX7WNLgz4zQ3+sydT2Hzt/GLPM2V+4U6sRnxK/IeHw0m j+Oq+8/zb0ZcLUmK+421Ri56AXeQ9aaXZpHw1j9J83h1HOOS5AqDoMNdoKrATbgm6Z6S Da53dZO/XkHifsMFdp6b0YyvCh5BcZVRcMCBFdPAyzW+evTMh+JNlK1rzx+ljOCKedQw lrqQ== X-Gm-Message-State: AOJu0YyL+5317vJefew4h9TcwJzvrlEsb5o8xs5dWQ8fT2kU3m/XPVsn 0pqSh3p7yokCAbFlXzFuP3f2zYJCCPgx3YhecRiyrrAzRXegFQzBCZp2T1OsHpe7BasRlqhDAsQ 8hg== X-Google-Smtp-Source: AGHT+IEW8XvWl7WjK5L6NTaQiRxCXYwncONlzs/TAiw6pzsr5QrMaAH6KgMxVt0rkKJqjqOk0fXWnQ== X-Received: by 2002:a17:907:7247:b0:a9a:33c:f6e1 with SMTP id a640c23a62f3a-a9abf851e2dmr534891566b.5.1729765720535; Thu, 24 Oct 2024 03:28:40 -0700 (PDT) From: Phil Dennis-Jordan To: qemu-devel@nongnu.org Cc: agraf@csgraf.de, phil@philjordan.eu, peter.maydell@linaro.org, pbonzini@redhat.com, rad@semihalf.com, quic_llindhol@quicinc.com, marcin.juszkiewicz@linaro.org, stefanha@redhat.com, mst@redhat.com, slp@redhat.com, richard.henderson@linaro.org, eduardo@habkost.net, marcel.apfelbaum@gmail.com, gaosong@loongson.cn, jiaxun.yang@flygoat.com, chenhuacai@kernel.org, kwolf@redhat.com, hreitz@redhat.com, philmd@linaro.org, shorne@gmail.com, palmer@dabbelt.com, alistair.francis@wdc.com, bmeng.cn@gmail.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, jcmvbkbc@gmail.com, marcandre.lureau@redhat.com, berrange@redhat.com, akihiko.odaki@daynix.com, qemu-arm@nongnu.org, qemu-block@nongnu.org, qemu-riscv@nongnu.org, Alexander Graf Subject: [PATCH v4 08/15] hvf: arm: Ignore writes to CNTP_CTL_EL0 Date: Thu, 24 Oct 2024 12:28:06 +0200 Message-Id: <20241024102813.9855-9-phil@philjordan.eu> X-Mailer: git-send-email 2.39.3 (Apple Git-145) In-Reply-To: <20241024102813.9855-1-phil@philjordan.eu> References: <20241024102813.9855-1-phil@philjordan.eu> 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: neutral client-ip=2a00:1450:4864:20::62e; envelope-from=phil@philjordan.eu; helo=mail-ej1-x62e.google.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NEUTRAL=0.779 autolearn=no 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 @philjordan-eu.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1729765783239116600 Content-Type: text/plain; charset="utf-8" From: Alexander Graf MacOS unconditionally disables interrupts of the physical timer on boot and then continues to use the virtual one. We don't really want to support a full physical timer emulation, so let's just ignore those writes. Signed-off-by: Alexander Graf Signed-off-by: Phil Dennis-Jordan Reviewed-by: Akihiko Odaki --- target/arm/hvf/hvf.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index 6cea483d422..b45b764dfd0 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -11,6 +11,7 @@ =20 #include "qemu/osdep.h" #include "qemu/error-report.h" +#include "qemu/log.h" =20 #include "sysemu/runstate.h" #include "sysemu/hvf.h" @@ -184,6 +185,7 @@ void hvf_arm_init_debug(void) #define SYSREG_OSLSR_EL1 SYSREG(2, 0, 1, 1, 4) #define SYSREG_OSDLR_EL1 SYSREG(2, 0, 1, 3, 4) #define SYSREG_CNTPCT_EL0 SYSREG(3, 3, 14, 0, 1) +#define SYSREG_CNTP_CTL_EL0 SYSREG(3, 3, 14, 2, 1) #define SYSREG_PMCR_EL0 SYSREG(3, 3, 9, 12, 0) #define SYSREG_PMUSERENR_EL0 SYSREG(3, 3, 9, 14, 0) #define SYSREG_PMCNTENSET_EL0 SYSREG(3, 3, 9, 12, 1) @@ -1620,6 +1622,13 @@ static int hvf_sysreg_write(CPUState *cpu, uint32_t = reg, uint64_t val) case SYSREG_OSLAR_EL1: env->cp15.oslsr_el1 =3D val & 1; return 0; + case SYSREG_CNTP_CTL_EL0: + /* + * Guests should not rely on the physical counter, but macOS emits + * disable writes to it. Let it do so, but ignore the requests. + */ + qemu_log_mask(LOG_UNIMP, "Unsupported write to CNTP_CTL_EL0\n"); + return 0; case SYSREG_OSDLR_EL1: /* Dummy register */ return 0; --=20 2.39.3 (Apple Git-145)