From nobody Sun Oct 5 07:26:04 2025 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5DF4628152F for ; Thu, 7 Aug 2025 20:17:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754597840; cv=none; b=XVze6GSMmhu1bArXDGtqBdmt+lP2Of6F1/0C7JpAdwe6OQ6PvI2JOt8PuW71INy2yAArM1zKkJ/SRBs9EiKrjM7dN6OtGbyuEN4CdZHxkWG5FnTK85fNu6LE4pHh6NLrjYxCze+M2gGAbg4gM6Hlm16o1ygWKKHMD0bwVwEVAok= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754597840; c=relaxed/simple; bh=lDPkiqgqLnS2hIwk/kcRCl9YxEjkdiRRNID0A7F0VAA=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=O38aJ4Svi+D+QHWXqcFppo3ws3uI5B2VCzXPrJtc/Jhy5GAUzq2zOBkzQSFFD2MRRJL1pxKMyGMj1C4grji9TfLt0b+qlUxUD1UN8phb/WlpVt/aYwz7Yhr0I/y06/5f0bEImYV0aoW23It5NpSfG466ovAyrRJR5NYKiBGkq3c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--sagis.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=z47yLss3; arc=none smtp.client-ip=209.85.216.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--sagis.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="z47yLss3" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-31ea6231678so2109896a91.0 for ; Thu, 07 Aug 2025 13:17:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1754597839; x=1755202639; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=4dbQa13oAbzCDXWZST2Fz7qe3oTtyOGSFzX0b1otAhk=; b=z47yLss3lqniPdHyaLUlt4SGaV7K9fdwwP5hySwlUkDzLUQdbMFbnBnnu2mMazNlQ4 pOL8Or5HNsd1LWlFUpGo0uxeHLzNM0VW6HdAHbzvNR7UhCCRYICMp0+yEc0eHzweQgaQ mj93vy6Vx6HHXPmCJBAwwoHdTWH1NBs8aPs4pJbRxTDO78toR9JKspF3tqUBgLeahq7F Qc2flfdb2qVmArotb+ECjqBbFCgvITaAh9WO6Kk0BMI3uf0o24mY4quy+rHgt+aqFNDL AsT6Bfjm8XIA8yyPjqEtA+C7S+VlXyM3qQm+Wbc/IdiqhNtNKuRA//woDexfWnDha66C KUAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1754597839; x=1755202639; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=4dbQa13oAbzCDXWZST2Fz7qe3oTtyOGSFzX0b1otAhk=; b=e1DoJdhi5oXt+GfUfpRMKJ6RwM6WOdkqfWiZWjtRt2J9OvxB0NheRldvR2/BTljcXu 5yhmSoaaZYAaFwnHl56RgTaBQWXWnGm3CL/iqWoLsygEI7JFdG47JTb+s7ThPZQrwK5e WgAXSAZbiheHL7bEV8i2mjq8XfvRxiYrtdWrIRbvjQeMCw6XTi8/y+GRXD/8hWKv1aLO 6r6mM6xywwQ8Dorhuu0AFFMC2HbinltvvLU1VyWk8yQb3caQTWA+wgI833qowyagcO1y xE+GE3SYV6bXOHqwDlmOSpWMcLPFK40vNUQ4WCA2eQyx1FkTHQ+eEplKfcEF9eZKWfXN 8OPA== X-Gm-Message-State: AOJu0Yz4XdsKoqUmD+zSC+Z/lxqgdivSnA7hZXzCAVl2aao3SUD4wbvt DOGABn9BC6Bjy7suySSAo+jYbJweRX9gbfOXQnhIJkWiSGlbqOcnKrBZ0+C2E06Eb2RgkpywweM VtA== X-Google-Smtp-Source: AGHT+IG2Lk4NOPEbEjMFa+XZyNu3Q1qhg7BUXzj5BBM1i5dAZdBMzmsaEaxU8P2uH91Sze4Rm/UBNniW1g== X-Received: from pjov3.prod.google.com ([2002:a17:90a:9603:b0:31c:2fe4:33b6]) (user=sagis job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:544c:b0:31e:a48c:25ef with SMTP id 98e67ed59e1d1-32184529833mr212813a91.10.1754597838787; Thu, 07 Aug 2025 13:17:18 -0700 (PDT) Date: Thu, 7 Aug 2025 13:16:23 -0700 In-Reply-To: <20250807201628.1185915-1-sagis@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250807201628.1185915-1-sagis@google.com> X-Mailer: git-send-email 2.51.0.rc0.155.g4a0f42376b-goog Message-ID: <20250807201628.1185915-28-sagis@google.com> Subject: [PATCH v8 27/30] KVM: selftests: TDX: Add support for TDG.VP.VEINFO.GET From: Sagi Shahar To: linux-kselftest@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sean Christopherson , Ackerley Tng , Ryan Afranji , Andrew Jones , Isaku Yamahata , Erdem Aktas , Rick Edgecombe , Sagi Shahar , Roger Wang , Binbin Wu , Oliver Upton , "Pratik R. Sampat" , Reinette Chatre , Ira Weiny Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Ackerley Tng Support TDG.VP.VEINFO.GET that the guest uses to obtain the virtualization exception information of the recent #VE exception. Signed-off-by: Ackerley Tng Signed-off-by: Sagi Shahar --- .../selftests/kvm/include/x86/tdx/tdx.h | 21 +++++++++++++++++++ tools/testing/selftests/kvm/lib/x86/tdx/tdx.c | 19 +++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/tools/testing/selftests/kvm/include/x86/tdx/tdx.h b/tools/test= ing/selftests/kvm/include/x86/tdx/tdx.h index 53637159fa12..55e52ad3de55 100644 --- a/tools/testing/selftests/kvm/include/x86/tdx/tdx.h +++ b/tools/testing/selftests/kvm/include/x86/tdx/tdx.h @@ -7,6 +7,7 @@ #include "kvm_util.h" =20 #define TDG_VP_INFO 1 +#define TDG_VP_VEINFO_GET 3 #define TDG_MEM_PAGE_ACCEPT 6 =20 #define TDG_VP_VMCALL_GET_TD_VM_CALL_INFO 0x10000 @@ -43,4 +44,24 @@ uint64_t tdg_vp_info(uint64_t *rcx, uint64_t *rdx, uint64_t tdg_vp_vmcall_map_gpa(uint64_t address, uint64_t size, uint64_t *= data_out); uint64_t tdg_mem_page_accept(uint64_t gpa, uint8_t level); =20 +/* + * Used by the #VE exception handler to gather the #VE exception + * info from the TDX module. This is a software only structure + * and not part of the TDX module/VMM ABI. + * + * Adapted from arch/x86/include/asm/tdx.h + */ +struct ve_info { + uint64_t exit_reason; + uint64_t exit_qual; + /* Guest Linear (virtual) Address */ + uint64_t gla; + /* Guest Physical Address */ + uint64_t gpa; + uint32_t instr_len; + uint32_t instr_info; +}; + +uint64_t tdg_vp_veinfo_get(struct ve_info *ve); + #endif // SELFTEST_TDX_TDX_H diff --git a/tools/testing/selftests/kvm/lib/x86/tdx/tdx.c b/tools/testing/= selftests/kvm/lib/x86/tdx/tdx.c index a51ab7511936..e42b586808a1 100644 --- a/tools/testing/selftests/kvm/lib/x86/tdx/tdx.c +++ b/tools/testing/selftests/kvm/lib/x86/tdx/tdx.c @@ -222,3 +222,22 @@ uint64_t tdg_mem_page_accept(uint64_t gpa, uint8_t lev= el) return __tdx_module_call(TDG_MEM_PAGE_ACCEPT, (gpa & PAGE_MASK) | level, 0, 0, 0, NULL); } + +uint64_t tdg_vp_veinfo_get(struct ve_info *ve) +{ + struct tdx_module_output out; + uint64_t ret; + + memset(&out, 0, sizeof(struct tdx_module_output)); + + ret =3D __tdx_module_call(TDG_VP_VEINFO_GET, 0, 0, 0, 0, &out); + + ve->exit_reason =3D out.rcx; + ve->exit_qual =3D out.rdx; + ve->gla =3D out.r8; + ve->gpa =3D out.r9; + ve->instr_len =3D out.r10 & 0xffffffff; + ve->instr_info =3D out.r10 >> 32; + + return ret; +} --=20 2.51.0.rc0.155.g4a0f42376b-goog