From nobody Sun Oct 5 07:21:19 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 252482737EC for ; Thu, 7 Aug 2025 20:16:43 +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=1754597805; cv=none; b=Q6EgnnXpRzuDca2I+IDNJz/lf/VOIBbGxG8LW3X5s/Xj0irrNMNdfAIUVm/1HQw5ixpIJ9bsB7+Y3lMXMLEtL8jheL5FemQhAp5lVY1TtfGYlUWTRjs6ZMfXDGqfdF1upFBC58B04qV0PhGpLbJkE+6w97U6XEtLBaclY126aPA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754597805; c=relaxed/simple; bh=vvoyDwfrz40cXS2E/qfKw0KPWURpKZQSXbiY0G7zSzI=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=gaZ9O5UeOzltq9kphLYOU+MRtSnQXqhkCT4GIzD2a86r4U/d9PNCoZEHsP3pUhxxG13fw5v3GmHqaCeyx+7TBIiiiaLga8G37kPCqp3G5s6dYsOt4W8qq9feqSJSAG1vNFW68Vr8TG3sABrrK4HDDhUfiPR6GlPPhFrrjehLVxM= 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=k68Pe9QS; 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="k68Pe9QS" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-315af08594fso1755885a91.2 for ; Thu, 07 Aug 2025 13:16:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1754597803; x=1755202603; 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=4ZhMhm+oGoXjR1ZKMvnfqRkH9sxXvmJdgGAeHzetkDQ=; b=k68Pe9QSBBrKDbEBN5dUL1XNCnuokeOQkA0CnjBPEAkuCVl3X4m2aErekq/HEpm2vJ a4i2Z94Rz6n6CM2LYx/wYFRFNtbixIoYi1GuJh+lw7K/py6pvAtfPFlqN0ccCduLITbe v7b94KAmE2h2kT4p8NhdW3gBltVXJiipGbwjcG7dHJwpkKxlq36/kbg3jqsjG6a5sa37 5mACZv9JfwpLcDN4z3DSEmXRoNiovdyUfH2gtSeJDzDs1F4YdgAUW61cGjU5RQCWzXtz Y83LaCpfzYbbw3nNKXJmJbh6MeENE58TU7XyyOmbwyiz1+j37ap3EQY3oQiEfcam+zjQ p1fw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1754597803; x=1755202603; 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=4ZhMhm+oGoXjR1ZKMvnfqRkH9sxXvmJdgGAeHzetkDQ=; b=RsrZTv7H429ctd7CNjQTcMtLQAOyE7nJZMUJ9lOF8HTm8z33mimqlBZ3d0sNAZx8W5 kEj6dgbojWCw8fZ0UVglBcbb5OEaTY/m7TNCWnllkGnrTiEZvQ7DKGr3rviqpsDE1Y1o ahezknKBIJ0qPxS6yEiaO2pxgd2w+abHBiWGBlP+ykq8PuCQeThqy7c6nrbM9EWPNXvb 9/6Q3u7YlzCAc0sYR1RNx2YOZweah6o4Gg7cSs9ztOsBIsun8Ybys95H2kO8I6xrS8hu S7QUDi3lcv4XZ3Ql0qFPIjgSOjOgzbuBeVrk1ZPPhljZLZHVoXDoKqypPCDMXaFaGyjj wyrw== X-Gm-Message-State: AOJu0YySA2A8vIGwZA9oOJgiY5k7C01wkQ15bzi56gyWPS7YeghfvNZd XukGJ9Dpj2xypDHdewLkwbbGYGt2/U41QNMdCcpSq4pqLkcD7XcNQV0GsBbeDl5Zr2ZijfsdFqQ qgw== X-Google-Smtp-Source: AGHT+IHjDcLQX1WhIoIZLM1WoaOz3EieXlE18GHV1p955qAC5wr4S8qpo4H4d6sFinEdYcxFY537Ys6L5w== X-Received: from pjbqb13.prod.google.com ([2002:a17:90b:280d:b0:31f:61fc:b283]) (user=sagis job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:1f90:b0:31e:c8fc:e630 with SMTP id 98e67ed59e1d1-32183c46068mr418295a91.26.1754597803497; Thu, 07 Aug 2025 13:16:43 -0700 (PDT) Date: Thu, 7 Aug 2025 13:16:00 -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: <20250807201628.1185915-5-sagis@google.com> Subject: [PATCH v8 04/30] KVM: selftests: Add vCPU descriptor table initialization utility 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 Turn vCPU descriptor table initialization into a utility for use by tests needing finer control, for example for TDX TD creation. Signed-off-by: Ackerley Tng Signed-off-by: Sagi Shahar --- tools/testing/selftests/kvm/include/x86/processor.h | 1 + tools/testing/selftests/kvm/lib/x86/processor.c | 7 ++++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/include/x86/processor.h b/tools/te= sting/selftests/kvm/include/x86/processor.h index f2eb764cbd7c..37ad1e4d86ba 100644 --- a/tools/testing/selftests/kvm/include/x86/processor.h +++ b/tools/testing/selftests/kvm/include/x86/processor.h @@ -1178,6 +1178,7 @@ struct idt_entry { uint32_t offset2; uint32_t reserved; }; =20 +void sync_exception_handlers_to_guest(struct kvm_vm *vm); void vm_install_exception_handler(struct kvm_vm *vm, int vector, void (*handler)(struct ex_regs *)); =20 diff --git a/tools/testing/selftests/kvm/lib/x86/processor.c b/tools/testin= g/selftests/kvm/lib/x86/processor.c index da6e9315ebe2..d082d429e127 100644 --- a/tools/testing/selftests/kvm/lib/x86/processor.c +++ b/tools/testing/selftests/kvm/lib/x86/processor.c @@ -585,6 +585,11 @@ void route_exception(struct ex_regs *regs) regs->vector, regs->rip); } =20 +void sync_exception_handlers_to_guest(struct kvm_vm *vm) +{ + *(vm_vaddr_t *)addr_gva2hva(vm, (vm_vaddr_t)(&exception_handlers)) =3D vm= ->handlers; +} + static void vm_init_descriptor_tables(struct kvm_vm *vm) { extern void *idt_handlers; @@ -600,7 +605,7 @@ static void vm_init_descriptor_tables(struct kvm_vm *vm) for (i =3D 0; i < NUM_INTERRUPTS; i++) set_idt_entry(vm, i, (unsigned long)(&idt_handlers)[i], 0, KERNEL_CS); =20 - *(vm_vaddr_t *)addr_gva2hva(vm, (vm_vaddr_t)(&exception_handlers)) =3D vm= ->handlers; + sync_exception_handlers_to_guest(vm); =20 kvm_seg_set_kernel_code_64bit(&seg); kvm_seg_fill_gdt_64bit(vm, &seg); --=20 2.51.0.rc0.155.g4a0f42376b-goog