{"id":2232002,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2232002/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260501231353.63184-1-mohamed@unpredictable.fr/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.1/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260501231353.63184-1-mohamed@unpredictable.fr>","date":"2026-05-01T23:13:53","name":"hvf: arm: override HV_SYS_REG_MDCR_EL2","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"8922f06e0a4ff52e526616e48843a91400152e47","submitter":{"id":91318,"url":"http://patchwork.ozlabs.org/api/1.1/people/91318/?format=json","name":"Mohamed Mediouni","email":"mohamed@unpredictable.fr"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260501231353.63184-1-mohamed@unpredictable.fr/mbox/","series":[{"id":502507,"url":"http://patchwork.ozlabs.org/api/1.1/series/502507/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=502507","date":"2026-05-01T23:13:53","name":"hvf: arm: override HV_SYS_REG_MDCR_EL2","version":1,"mbox":"http://patchwork.ozlabs.org/series/502507/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2232002/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2232002/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=unpredictable.fr header.i=@unpredictable.fr\n header.a=rsa-sha256 header.s=sig1 header.b=PoKnL/FC;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=outbound.qs.icloud.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_MSPIKE_H2=0.001, SPF_HELO_PASS=-0.001,\n 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":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"In older SDKs, MDCR_EL2 was defined incorrectly.\n\nAs such, override it with a #define if compiling with an older macOS\nSDK.\n\nThis is a workaround because the macOS CI setup we currently rely on\nhas not been kept up to date, to be able to land nested virtualization\nsupport.\n\nOnce CI is updated, the SME stubs can be removed and this\ncommit can be reverted.\n\nSigned-off-by: Mohamed Mediouni \n---\n target/arm/hvf/hvf.c | 9 +++++++++\n 1 file changed, 9 insertions(+)","diff":"diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c\nindex 4f0f7ffba1..79209bc8e9 100644\n--- a/target/arm/hvf/hvf.c\n+++ b/target/arm/hvf/hvf.c\n@@ -468,6 +468,15 @@ static const struct hvf_reg_match hvf_sme2_preg_match[] = {\n #define HVF_TO_KVMID(HVF) \\\n (CP_REG_ARM64 | CP_REG_SIZE_U64 | CP_REG_ARM64_SYSREG | (HVF))\n \n+/*\n+ * In older SDKs, MDCR_EL2 was defined incorrectly.\n+ * As such, override it with a #define if compiling with an older macOS SDK.\n+ * https://lore.kernel.org/qemu-devel/BCCED674-EAEF-4755-9BE1-116FB36FB5C9@apple.com/\n+ */\n+#if !defined(MAC_OS_VERSION_26_0)\n+#define HV_SYS_REG_MDCR_EL2 0xe089\n+#endif\n+\n /*\n * Verify this at compile-time.\n *\n","prefixes":[]}