From nobody Fri Oct 10 13:45:35 2025 Received: from mail-pf1-f201.google.com (mail-pf1-f201.google.com [209.85.210.201]) (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 62A692E92CC for ; Fri, 13 Jun 2025 19:14:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749842095; cv=none; b=ge68Yc9L24uqJXXX/KMkIINDyC4afdPjtWhxlXAk7wRItz5q38E8bfN5FDDY7UwIlrV8l+S1bFTNEwFBzV9dy7Yf2Bd96u3JLmp6fhX6cn5guSsP13HxqCV6uGTXyJ751KbNP/zQ5DK1CrehLKBin3v1IN2iFv2NqEDxFAS+ueU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749842095; c=relaxed/simple; bh=hUSC6q/u5XglC1U4gOPTanfZQQlW+0KgRtgJCMI3QJw=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=Hm97QpHo1Maf6NvVpTSJf/veg70IP9/sRG5BUUuLtKfalGjvumCv1wFuw8P2gOZoplPw6nN3ObvypbheFcCiE5ps+nJh4sYa4Kvq8Rwe91mr459hUttREw8e4onGzJfyoRXXbgVSURZj/ggmH4psUsdFjDBqXdJHdAB1KVZu/Mo= 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=yCRHOpyD; arc=none smtp.client-ip=209.85.210.201 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="yCRHOpyD" Received: by mail-pf1-f201.google.com with SMTP id d2e1a72fcca58-73bfc657aefso1834236b3a.1 for ; Fri, 13 Jun 2025 12:14:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1749842093; x=1750446893; 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=Wkd+oSBsV61vY+nLf2ZlPchh7IouawdO+jqDmSL0Z5Y=; b=yCRHOpyDzyRwIjRhnCofAUxGE1oJK8bjkFT8YmgaeiiU2f1aw4ZYywts/vQLKS7cwu +w38BhgA7BiILlyk4+DFo0JmeiIbE0RqjGq3YpJDCS6H3y91HU1D4PY/eoFRc63N4WmW FCJbUw+8cRSh7KrUAqu7Nid2aTBwN8zo1vHGR/r/TrdIkFUUA/2B5woYilOPiw2DJTmJ 1MDWAN8ExnFvidDL27eBBgh9tY21I6NiG1zK307eJNl01E96eWxggtcy4sW1ehFhDZ5C UdncJwQC0dVg3hvf42MncLA4ug9jXhRamUHVVX/xDG6XozCJsvwaZLcT4MVQ+fCcJQn3 AXEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749842093; x=1750446893; 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=Wkd+oSBsV61vY+nLf2ZlPchh7IouawdO+jqDmSL0Z5Y=; b=OJVj95RUYQc1uV/L/d62vWNCvRSXAtYPRspONR0aKAJVKAHEZfWVzts99e8sZcXQbj Xh2AHhkp9BwJiwaLqshlQK4ZHwFDgr2/NTW3uIZvC9pujPSLC7w6tk8WXNgYHrZ4m4Gr pPpRbk4oxuILYc15m4xW9FA35MZByJyVlULX1A0R4WhggbQht0YGkMcrb7LX8RSDYV0j UIrjCGAzIelUxzbwinHYKBfPgIPMU4EzqdlUc8ohbzaLgCq61jXPCDWQKetZOrQ2TC4V Uye2VTJ/YUDfdNxKVFliAB1LMOOWHn798dfMtal4+OvZ8NMttvBCyiin85B2TUZv2Oaf jX0w== X-Gm-Message-State: AOJu0YxMdG6Fs7OIWqM1aVDC8XT/mrvmWjM6Zfj/ofRH41LWMkZYJ2IC xF7ssf2lEKf/b6GkENiMQ4ITODgXWI0NvVrFIrh+CIkYzeD4X/hMvSYGmV3tiF1K7+fqaeeaUZd 4Yg== X-Google-Smtp-Source: AGHT+IEdGLNaT/g5MhxH3XF9cuZPDfuAeWyjHSU8EzljbNMvFxWw7iQfHx3fRbY0rVLIvruilLj4TmF/3w== X-Received: from pfbft7.prod.google.com ([2002:a05:6a00:81c7:b0:747:7188:c30]) (user=sagis job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:a86:b0:732:2923:b70f with SMTP id d2e1a72fcca58-7489d00631fmr571690b3a.11.1749842092790; Fri, 13 Jun 2025 12:14:52 -0700 (PDT) Date: Fri, 13 Jun 2025 12:13:54 -0700 In-Reply-To: <20250613191359.35078-1-sagis@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250613191359.35078-1-sagis@google.com> X-Mailer: git-send-email 2.50.0.rc2.692.g299adb8693-goog Message-ID: <20250613191359.35078-28-sagis@google.com> Subject: [PATCH v7 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 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 2.50.0.rc2.692.g299adb8693-goog