From nobody Wed Dec 17 12:25:15 2025 Received: from mail-ot1-f74.google.com (mail-ot1-f74.google.com [209.85.210.74]) (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 3B214350D4C for ; Tue, 28 Oct 2025 21:20:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761686459; cv=none; b=USJRjfnSmGN07RNy/t0BqiqnDRAwdHdy1GeHWOOfAHgePgB7IKyzoAP50P/oRX5rFyi2Z5AvQLZdmArc5nRo1lmFjGEQ8PKb0sqarxNCWThYxH73HC0CKazwQjG8V+0QSsVR3WkRsew7xFA7YruVTReG8Xma3o5aJmdajQl9Dm4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761686459; c=relaxed/simple; bh=byR26H853vtY1lU2qQd3dx7y+cPojvAtdUsYskKNuJY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=WLHef4JSzBKKiFko5YIWvWJ9V6m76uVgJGeUY76DrKGMp7eEwUUEejYyA2gEFpHnjNt+aT/R+izcBVt7E+e0gfS+OhWAd/95g/D+iJzoJtedLNpqmSd7AtbnSYG/a1MiPaGj+nzfJHlhEv3U3nfv/0jHcOCvqlTQJ+lOIRmSGwg= 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=P/xXcotN; arc=none smtp.client-ip=209.85.210.74 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="P/xXcotN" Received: by mail-ot1-f74.google.com with SMTP id 46e09a7af769-7c52d9638f8so2082582a34.0 for ; Tue, 28 Oct 2025 14:20:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1761686457; x=1762291257; 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=MnNPBnpM5bYky9vxwBzGQagmW12705iL+thpB/tnb+E=; b=P/xXcotNawces0pDKnwZ+086OySgvphs2+KoiE0d9meYLbsOIqEr8hNiUcftkO28RW kHwJKqDqbYkryFpKmug/OnF24gvrX4en8m6wf3O9ESoPDYpxEzO32pqokx+f3yevJOFC Q4HtloX8W9ZABF3TS4VC8p8uQPsncu2xR4H17LY1urV/KPsX6Du11XSgMZBm/GEHfvdf Rd0XgdpHKI+R/5gwv9E8ogkPGIZACGfd1nRBtj8+tfErp1yqZy6Xiqod3oW/kN6bI1Qn 7/MTMwYdn9pZ8O0nIBBDf9SbzU8iAjuyYCTDgCiseaMn5TtY5bAmEInEFgwFw/v0AhlG PrkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761686457; x=1762291257; 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=MnNPBnpM5bYky9vxwBzGQagmW12705iL+thpB/tnb+E=; b=BRhUXLzeidfkgqb/BiUP75o/ygnYdYFfvCbLuy7JfbZLYEwL1TqMQMYtsfXDXKZuxJ O+zlduwuuRgSUY6V6XY0Ce6EeBZwWh2gDIWI5Q0ZRxssgZFayXEw30qYYQRIs9CgZ68/ ybxr7M1f/4DXDOgegfp8/Guf+FGwX+4VLQ6/eSqY26quUbVv4W8SmfP2+Buftjx7Wh15 HBGccZow7tu7CapSs1YX30TLi87AeihTVGwYUPatBh5IqDF26RPOgeAGIiKhFO0rqs1q 3rnNT9XmKcSiP/JG6zmiBnu9CiHRyt6fBT4XXnSVneFA2lgbWBunvQYrdimsTaLdhxZq v5LQ== X-Gm-Message-State: AOJu0YzQOvqjONMAHcNtevV7EvUrKXyr4ZB5HIZNUHRBUl9trBr1Kd5G AcBD838eZT/ufUjVjcaprHOyDst4DydJUauQJanC/bSMcKZYS8X1o9vlpLaJD00w1ZErFs9QKoU QxQ== X-Google-Smtp-Source: AGHT+IGR5mnppgMEZJUYIBgsKY04ukEokgXLIWL+libJL2Zf7k+H6SYVbXC6UYmt0y9gc43yPO9LBdNfLA== X-Received: from otbay35.prod.google.com ([2002:a05:6830:46a3:b0:7c5:31c4:1a54]) (user=sagis job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6830:4124:b0:7c5:4005:fff3 with SMTP id 46e09a7af769-7c6830c4954mr406884a34.29.1761686457320; Tue, 28 Oct 2025 14:20:57 -0700 (PDT) Date: Tue, 28 Oct 2025 21:20:28 +0000 In-Reply-To: <20251028212052.200523-1-sagis@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251028212052.200523-1-sagis@google.com> X-Mailer: git-send-email 2.51.1.851.g4ebd6896fd-goog Message-ID: <20251028212052.200523-3-sagis@google.com> Subject: [PATCH v12 02/23] KVM: selftests: Allocate pgd in virt_map() as necessary 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 , Chao Gao , Chenyi Qiang Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" If virt_map() is called before any call to ____vm_vaddr_alloc() it will create the mapping using an invalid pgd. Add call to virt_pgd_alloc() as part of virt_map() before creating the mapping, similarly to ____vm_vaddr_alloc() Reviewed-by: Ira Weiny Reviewed-by: Binbin Wu Signed-off-by: Sagi Shahar --- tools/testing/selftests/kvm/lib/kvm_util.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/sel= ftests/kvm/lib/kvm_util.c index 1a93d6361671..0e6a487ca7a4 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -1569,6 +1569,7 @@ void virt_map(struct kvm_vm *vm, uint64_t vaddr, uint= 64_t paddr, TEST_ASSERT(vaddr + size > vaddr, "Vaddr overflow"); TEST_ASSERT(paddr + size > paddr, "Paddr overflow"); =20 + virt_pgd_alloc(vm); while (npages--) { virt_pg_map(vm, vaddr, paddr); sparsebit_set(vm->vpages_mapped, vaddr >> vm->page_shift); --=20 2.51.1.851.g4ebd6896fd-goog