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Mon, 11 Aug 2025 10:07:13 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Miguel Luis , Richard Henderson , kvm@vger.kernel.org, Peter Maydell , Paolo Bonzini , Haibo Xu , Mohamed Mediouni , Mark Burton , Alexander Graf , Claudio Fontana , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Mads Ynddal , Eric Auger , qemu-arm@nongnu.org, Cameron Esfahani , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [RFC PATCH 11/11] target/arm/hvf: Allow EL2/EL3 emulation on Silicon M1 / M2 Date: Mon, 11 Aug 2025 19:06:11 +0200 Message-ID: <20250811170611.37482-12-philmd@linaro.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250811170611.37482-1-philmd@linaro.org> References: <20250811170611.37482-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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::32e; envelope-from=philmd@linaro.org; helo=mail-wm1-x32e.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=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: 1754932174119124100 Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- Another API PoC. --- target/arm/hvf/hvf.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index d74f576b103..0519903c928 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" @@ -1014,11 +1015,14 @@ bool arm_hw_accel_cpu_feature_supported(enum arm_fe= atures feat, bool can_emulate case ARM_FEATURE_GENERIC_TIMER: return true; case ARM_FEATURE_EL2: + if (can_emulate) { + return true; + } ret =3D hv_vm_config_get_el2_supported(&supported); assert_hvf_ok(ret); return supported; case ARM_FEATURE_EL3: - return false; + return can_emulate && tcg_enabled(); default: g_assert_not_reached(); } --=20 2.49.0