From owner-svn-src-all@freebsd.org Thu Dec 20 01:05:10 2018 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 528FA135066D; Thu, 20 Dec 2018 01:05:10 +0000 (UTC) (envelope-from mw@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 E19CD82F03; Thu, 20 Dec 2018 01:05:09 +0000 (UTC) (envelope-from mw@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 D49141DF32; Thu, 20 Dec 2018 01:05:09 +0000 (UTC) (envelope-from mw@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wBK159gZ024506; Thu, 20 Dec 2018 01:05:09 GMT (envelope-from mw@FreeBSD.org) Received: (from mw@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wBK159bD024504; Thu, 20 Dec 2018 01:05:09 GMT (envelope-from mw@FreeBSD.org) Message-Id: <201812200105.wBK159bD024504@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mw set sender to mw@FreeBSD.org using -f From: Marcin Wojtas Date: Thu, 20 Dec 2018 01:05:09 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r342271 - head/sys/dev/tpm X-SVN-Group: head X-SVN-Commit-Author: mw X-SVN-Commit-Paths: head/sys/dev/tpm X-SVN-Commit-Revision: 342271 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: E19CD82F03 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.97 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-0.998,0]; NEURAL_HAM_SHORT(-0.97)[-0.973,0]; 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, 20 Dec 2018 01:05:10 -0000 Author: mw Date: Thu Dec 20 01:05:09 2018 New Revision: 342271 URL: https://svnweb.freebsd.org/changeset/base/342271 Log: Fix obtaining RSP address in TPM CRB for non-amd64 platforms On amd64 the RSP address can be read in single 8-byte transaction, which is obviously not possible on 32-bit platforms. Fix that by performing 2 4-byte read on them. Obtained from: Semihalf Sponsored by: Stormshield Modified: head/sys/dev/tpm/tpm20.h head/sys/dev/tpm/tpm_crb.c Modified: head/sys/dev/tpm/tpm20.h ============================================================================== --- head/sys/dev/tpm/tpm20.h Thu Dec 20 01:00:21 2018 (r342270) +++ head/sys/dev/tpm/tpm20.h Thu Dec 20 01:05:09 2018 (r342271) @@ -153,12 +153,14 @@ RD4(struct tpm_sc *sc, bus_size_t off) return (bus_read_4(sc->mem_res, off)); } +#ifdef __amd64__ static inline uint64_t RD8(struct tpm_sc *sc, bus_size_t off) { return (bus_read_8(sc->mem_res, off)); } +#endif static inline void WR1(struct tpm_sc *sc, bus_size_t off, uint8_t val) { Modified: head/sys/dev/tpm/tpm_crb.c ============================================================================== --- head/sys/dev/tpm/tpm_crb.c Thu Dec 20 01:00:21 2018 (r342270) +++ head/sys/dev/tpm/tpm_crb.c Thu Dec 20 01:05:09 2018 (r342271) @@ -50,6 +50,7 @@ __FBSDID("$FreeBSD$"); #define TPM_CRB_CTRL_CMD_HADDR 0x60 #define TPM_CRB_CTRL_RSP_SIZE 0x64 #define TPM_CRB_CTRL_RSP_ADDR 0x68 +#define TPM_CRB_CTRL_RSP_HADDR 0x6c #define TPM_CRB_DATA_BUFFER 0x80 #define TPM_LOC_STATE_ESTB BIT(0) @@ -188,7 +189,12 @@ tpmcrb_attach(device_t dev) * addr is stored in two 4 byte neighboring registers, whereas RSP is * stored in a single 8 byte one. */ +#ifdef __amd64__ crb_sc->rsp_off = RD8(sc, TPM_CRB_CTRL_RSP_ADDR); +#else + crb_sc->rsp_off = RD4(sc, TPM_CRB_CTRL_RSP_ADDR); + crb_sc->rsp_off |= ((uint64_t) RD4(sc, TPM_CRB_CTRL_RSP_HADDR) << 32); +#endif crb_sc->cmd_off = RD4(sc, TPM_CRB_CTRL_CMD_LADDR); crb_sc->cmd_off |= ((uint64_t) RD4(sc, TPM_CRB_CTRL_CMD_HADDR) << 32); crb_sc->cmd_buf_size = RD4(sc, TPM_CRB_CTRL_CMD_SIZE);