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Tue, 12 Aug 2025 15:34:16 -0700 (PDT) Received: from [192.168.4.112] ([168.140.255.211]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-241e899a8cdsm308788855ad.121.2025.08.12.15.34.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 12 Aug 2025 15:34:15 -0700 (PDT) Message-ID: <2f3cd701-6051-46e0-b7e2-e807b29afa28@linaro.org> Date: Wed, 13 Aug 2025 08:34:09 +1000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v2 10/10] target/arm/hvf: Allow EL2/EL3 emulation on Silicon M1 / M2 To: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org Cc: Alexander Graf , Mads Ynddal , Peter Maydell , qemu-arm@nongnu.org References: <20250812172823.86329-1-philmd@linaro.org> <20250812173234.86970-1-philmd@linaro.org> From: Richard Henderson Content-Language: en-US In-Reply-To: <20250812173234.86970-1-philmd@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::633; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x633.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 autolearn=unavailable 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 On 8/13/25 03:32, Philippe Mathieu-Daudé wrote: > Signed-off-by: Philippe Mathieu-Daudé > --- > Another API PoC. > --- > target/arm/hvf/hvf.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > I imagine this waits until accel/split is present? If so, Reviewed-by: Richard Henderson r~ > diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c > index 84c0c0275d6..df63584f456 100644 > --- a/target/arm/hvf/hvf.c > +++ b/target/arm/hvf/hvf.c > @@ -17,6 +17,7 @@ > #include "system/hvf.h" > #include "system/hvf_int.h" > #include "system/hw_accel.h" > +#include "system/tcg.h" > #include "hvf_arm.h" > #include "cpregs.h" > #include "cpu-sysregs.h" > @@ -585,11 +586,14 @@ bool host_cpu_feature_supported(enum arm_features feature) > case ARM_FEATURE_GENERIC_TIMER: > return true; > case ARM_FEATURE_EL2: > + if (tcg_enabled()) { > + return true; > + } > ret = hv_vm_config_get_el2_supported(&supported); > assert_hvf_ok(ret); > return supported; > case ARM_FEATURE_EL3: > - return false; > + return tcg_enabled(); > default: > g_assert_not_reached(); > }