From owner-dev-commits-src-branches@freebsd.org Thu Aug 12 17:02:33 2021 Return-Path: Delivered-To: dev-commits-src-branches@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id A850966F886; Thu, 12 Aug 2021 17:02:33 +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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4GltKP3zlqz3JNf; Thu, 12 Aug 2021 17:02:33 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 5F75D2692A; Thu, 12 Aug 2021 17:02:33 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 17CH2XIL018566; Thu, 12 Aug 2021 17:02:33 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 17CH2Xmr018565; Thu, 12 Aug 2021 17:02:33 GMT (envelope-from git) Date: Thu, 12 Aug 2021 17:02:33 GMT Message-Id: <202108121702.17CH2Xmr018565@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: John Baldwin Subject: git: 86139cc75a55 - stable/13 - bhyve vtblk: Inform guests of disk resize events. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: jhb X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 86139cc75a5506bde6a4b180c024294e470d5cb6 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-branches@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commits to the stable branches of the FreeBSD src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Aug 2021 17:02:33 -0000 The branch stable/13 has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=86139cc75a5506bde6a4b180c024294e470d5cb6 commit 86139cc75a5506bde6a4b180c024294e470d5cb6 Author: John Baldwin AuthorDate: 2021-06-12 00:59:46 +0000 Commit: John Baldwin CommitDate: 2021-08-12 17:01:34 +0000 bhyve vtblk: Inform guests of disk resize events. Register a resize callback with the blockif interface. When the callback fires, update the size of the disk and notify the guest via a configuration change interrupt. Reviewed by: grehan, markj MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D30506 (cherry picked from commit 2349cda44fea17c089b026e743ec8f03199019eb) --- usr.sbin/bhyve/pci_virtio_block.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/usr.sbin/bhyve/pci_virtio_block.c b/usr.sbin/bhyve/pci_virtio_block.c index 8a172c54eda7..3718b2d7eff0 100644 --- a/usr.sbin/bhyve/pci_virtio_block.c +++ b/usr.sbin/bhyve/pci_virtio_block.c @@ -3,7 +3,7 @@ * * Copyright (c) 2011 NetApp, Inc. * All rights reserved. - * Copyright 2020 Joyent, Inc. + * Copyright 2020-2021 Joyent, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -436,6 +436,18 @@ pci_vtblk_notify(void *vsc, struct vqueue_info *vq) pci_vtblk_proc(sc, vq); } +static void +pci_vtblk_resized(struct blockif_ctxt *bctxt, void *arg, size_t new_size) +{ + struct pci_vtblk_softc *sc; + + sc = arg; + + sc->vbsc_cfg.vbc_capacity = new_size / VTBLK_BSIZE; /* 512-byte units */ + vi_interrupt(&sc->vbsc_vs, VIRTIO_PCI_ISR_CONFIG, + sc->vbsc_vs.vs_msix_cfg_idx); +} + static int pci_vtblk_init(struct vmctx *ctx, struct pci_devinst *pi, nvlist_t *nvl) { @@ -541,6 +553,7 @@ pci_vtblk_init(struct vmctx *ctx, struct pci_devinst *pi, nvlist_t *nvl) return (1); } vi_set_io_bar(&sc->vbsc_vs, 0); + blockif_register_resize_callback(sc->bc, pci_vtblk_resized, sc); return (0); }