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Tue, 16 Jan 2024 18:51:50 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-Inumbo-ID: 5fa1380c-b4a0-11ee-9b0f-b553b5be7939 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1705431140; x=1736967140; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=fLyAFvpkS62mZ58f/yx9ju+/jVeXxTTvsO8RqlfEYZw=; b=QTpoe6W2OZiIoMiNje46trYp40E/V05Tewo7T9/+cPsmEz1S4PZNxbYd ddaJGJoXVI2091nkxhrLHl24U+jMgjpI61ZnEF8LLlOtkpbEOykJBavG3 8sum3lHRfkmUywMx06JyUuZFwyE4a4Yw1NmOD/PluVQtpC87+s/+U0SWD 0=; X-IronPort-AV: E=Sophos;i="6.05,200,1701129600"; d="scan'208";a="698182045" X-Farcaster-Flow-ID: a7f91975-ed87-4dde-a05c-1a70ef0afa42 From: Elias El Yandouzi To: CC: , , , Hongyan Xia , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu , Elias El Yandouzi Subject: [PATCH v2] x86/pv: Map L4 page table for shim domain Date: Tue, 16 Jan 2024 18:50:39 +0000 Message-ID: <20240116185056.15000-11-eliasely@amazon.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240116185056.15000-1-eliasely@amazon.com> References: <20240116185056.15000-1-eliasely@amazon.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: Bulk X-ZohoMail-DKIM: pass (identity @amazon.com) X-ZM-MESSAGEID: 1705431635690100001 Content-Type: text/plain; charset="utf-8" From: Hongyan Xia The root page table is allocated from the domheap and isn't mapped by default. Map it on demand to build pv shim domain. Signed-off-by: Hongyan Xia Signed-off-by: Elias El Yandouzi ---- Changes in v2: * New patch diff --git a/xen/arch/x86/pv/dom0_build.c b/xen/arch/x86/pv/dom0_build.c index dc5e9fe117..fc51c7d362 100644 --- a/xen/arch/x86/pv/dom0_build.c +++ b/xen/arch/x86/pv/dom0_build.c @@ -991,8 +991,12 @@ do { = \ * !CONFIG_VIDEO case so the logic here can be simplified. */ if ( pv_shim ) + { + l4start =3D map_domain_page(l4start_mfn); pv_shim_setup_dom(d, l4start, v_start, vxenstore_start, vconsole_s= tart, vphysmap_start, si); + UNMAP_DOMAIN_PAGE(l4start); + } =20 #ifdef CONFIG_COMPAT if ( compat ) --=20 2.40.1