From nobody Thu Apr 16 15:12:24 2026 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fxM2065zXz6Zpw8 for ; Thu, 16 Apr 2026 15:12:24 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fxM2037j7z4N03 for ; Thu, 16 Apr 2026 15:12:24 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1776352344; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=aE8IPpB3tH5q6SPksbmmmy57goOn+52x3v8NnwSsJVY=; b=db1ny4eELKgkHFCzR9hCB+Yg7hPhVxzhaUrHHQMOT7qzfFHSVIvyebur3jDjPIEwr5XeSW Loh+fOO4FFJh4kEXYD+7S+8zZjzC0p0xh4cOdbdLcNiACwPDJPsljWcAnj0Wc1zwZDsa/F K3dblmh4a5HHXKxxZzfC5fWt2e82C3gD4lWsL0+bsatTzUjmn86aZQxOVVF9mdWgparNMA 88aWGWnwYqHRE6/qUBmbQTMwDwAwPzpwiY6UPtzuLw7flML8l6oyeTkaXaG0Jq/vPvCyOd WWopItYUmt7pbmD6kmYjbqUXhk52on9xLLlrqFyjsY/IcqpPt2hOIIGyoKUoIg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1776352344; a=rsa-sha256; cv=none; b=NTwSIAJh1RaXEyzyWFc0CtSit3ahWjkQFA4hvMKRbZxBngBxrk9XbZ6SgNTVPGwSRXZfCD a3t39n7bWkWqfddHj5bWGxWsgIhGR/ix9/L6Hz28CwAngAX04pK2A7plf3jBDSJ4xiJ9JO hz1HjoW4ADtB0P5oH+hu1jvzQyRWXSAx9W0MI9UXmkfzXm/nclzMu9RZ0KuLx8U9EQc/+6 FP5/V8/Q8SxUmBTZ0MGEWk3OyzxbfXZxu5r7dPcDijusq07WWH20XOQwNiMhSwSoxRc1CY Gb6fA5WAMYUJv/SFnXQahYu6D6ZVClgEq1j1aos58Sn/9tAi/fK6eH6xVDteZA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1776352344; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=aE8IPpB3tH5q6SPksbmmmy57goOn+52x3v8NnwSsJVY=; b=KV5mW0NjcQYGuvtrcShZXqb5+S7MBr6uH9E3sihOiq5wAhPkI0NLnHXvEzozFdloI8b7gm 6A7nUin6ym0OO7ohw+FAnznK3FrWsRhMLSPZhwh8cs/FFdYXrpoEG6FwZzfegwPpRkQojK XJC36VzIaY+shZD3LZV8ws19pXs4pse0jVgjNHzoWGHPR5dVfigtEN213SkFAG1NCQGiDy BAKm2dTMIZ6nOExmaNx4PffeNil3PdKcJJWfG66eCtUAn1rO0T6nL7o4Fc9QjPE/MR5q8w 6hwhqJsa39QBOCaDkXm/gK45LdYUm6+AqnF/4A5x2Lsh+2BhZzXfQWPS6jGFWw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4fxM202gnwz1BmM for ; Thu, 16 Apr 2026 15:12:24 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 1e99b by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Thu, 16 Apr 2026 15:12:24 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: Roger Pau =?utf-8?Q?Monn=C3=A9?= From: Colin Percival Subject: git: f3490b827e05 - stable/14 - x86/cpuid: add CPUID flag for Extended Destination ID support List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: cperciva X-Git-Repository: src X-Git-Refname: refs/heads/stable/14 X-Git-Reftype: branch X-Git-Commit: f3490b827e051aff60930bc7596b790b24fbb7db Auto-Submitted: auto-generated Date: Thu, 16 Apr 2026 15:12:24 +0000 Message-Id: <69e0fc58.1e99b.3a9589da@gitrepo.freebsd.org> The branch stable/14 has been updated by cperciva: URL: https://cgit.FreeBSD.org/src/commit/?id=f3490b827e051aff60930bc7596b790b24fbb7db commit f3490b827e051aff60930bc7596b790b24fbb7db Author: Roger Pau Monné AuthorDate: 2022-02-18 08:17:47 +0000 Commit: Colin Percival CommitDate: 2026-04-16 15:11:55 +0000 x86/cpuid: add CPUID flag for Extended Destination ID support Introduce the CPUID flag to be used in order to signal the support for using an extended destination ID in IO-APIC RTEs and MSI address fields. Such format expands the maximum target APIC ID from 255 to 32768 without requiring the usage of interrupt remapping. The design document describing the feature can be found at: http://david.woodhou.se/15-bit-msi.pdf Signed-off-by: Roger Pau Monné Reviewed-by: Jan Beulich (cherry picked from commit 8c986d1645312487adf21a9104d667ac1e19c25f) --- sys/contrib/xen/arch-x86/cpuid.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sys/contrib/xen/arch-x86/cpuid.h b/sys/contrib/xen/arch-x86/cpuid.h index ce46305bee99..f2b2b3632c2d 100644 --- a/sys/contrib/xen/arch-x86/cpuid.h +++ b/sys/contrib/xen/arch-x86/cpuid.h @@ -102,6 +102,13 @@ #define XEN_HVM_CPUID_IOMMU_MAPPINGS (1u << 2) #define XEN_HVM_CPUID_VCPU_ID_PRESENT (1u << 3) /* vcpu id is present in EBX */ #define XEN_HVM_CPUID_DOMID_PRESENT (1u << 4) /* domid is present in ECX */ +/* + * With interrupt format set to 0 (non-remappable) bits 55:49 from the + * IO-APIC RTE and bits 11:5 from the MSI address can be used to store + * high bits for the Destination ID. This expands the Destination ID + * field from 8 to 15 bits, allowing to target APIC IDs up 32768. + */ +#define XEN_HVM_CPUID_EXT_DEST_ID (1u << 5) /* * Leaf 6 (0x40000x05)