From owner-svn-src-all@freebsd.org Thu Mar 14 21:08:49 2019 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 75EDB152E3F3; Thu, 14 Mar 2019 21:08:49 +0000 (UTC) (envelope-from cem@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) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 1B2296D329; Thu, 14 Mar 2019 21:08:49 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 0D42427FEB; Thu, 14 Mar 2019 21:08:49 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x2EL8m0E018393; Thu, 14 Mar 2019 21:08:48 GMT (envelope-from cem@FreeBSD.org) Received: (from cem@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x2EL8mGv018392; Thu, 14 Mar 2019 21:08:48 GMT (envelope-from cem@FreeBSD.org) Message-Id: <201903142108.x2EL8mGv018392@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: cem set sender to cem@FreeBSD.org using -f From: Conrad Meyer Date: Thu, 14 Mar 2019 21:08:48 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r345158 - head/usr.sbin/bhyve X-SVN-Group: head X-SVN-Commit-Author: cem X-SVN-Commit-Paths: head/usr.sbin/bhyve X-SVN-Commit-Revision: 345158 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 1B2296D329 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.98 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.998,0]; NEURAL_HAM_SHORT(-0.98)[-0.980,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Mar 2019 21:08:49 -0000 Author: cem Date: Thu Mar 14 21:08:48 2019 New Revision: 345158 URL: https://svnweb.freebsd.org/changeset/base/345158 Log: bhyve(8): Fix uart emulation bug THRE is always asserted in LSR reads, so REG_IER writes that raise IER_ETXRDY must also set thre_int_pending. Reported by: Illumos, according to emaste@ https://twitter.com/ed_maste/status/1106195949087584258 MFC after: 2 weeks Modified: head/usr.sbin/bhyve/uart_emul.c Modified: head/usr.sbin/bhyve/uart_emul.c ============================================================================== --- head/usr.sbin/bhyve/uart_emul.c Thu Mar 14 20:32:48 2019 (r345157) +++ head/usr.sbin/bhyve/uart_emul.c Thu Mar 14 21:08:48 2019 (r345158) @@ -431,6 +431,9 @@ uart_write(struct uart_softc *sc, int offset, uint8_t sc->thre_int_pending = true; break; case REG_IER: + /* Set pending when IER_ETXRDY is raised (edge-triggered). */ + if ((sc->ier & IER_ETXRDY) == 0 && (value & IER_ETXRDY) != 0) + sc->thre_int_pending = true; /* * Apply mask so that bits 4-7 are 0 * Also enables bits 0-3 only if they're 1