From patchwork Thu Jan 19 12:34:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 13107852 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7B887C00A5A for ; Thu, 19 Jan 2023 12:39:29 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pIU9o-0008Cu-I3; Thu, 19 Jan 2023 07:36:41 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pIU9G-0007PT-NG; Thu, 19 Jan 2023 07:36:07 -0500 Received: from mail.ozlabs.org ([2404:9400:2221:ea00::3] helo=gandalf.ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pIU9E-0007fS-BB; Thu, 19 Jan 2023 07:36:06 -0500 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4NyMYb1Y7Qz4xyV; Thu, 19 Jan 2023 23:36:03 +1100 (AEDT) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (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) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4NyMYY1HPGz4xyK; Thu, 19 Jan 2023 23:36:00 +1100 (AEDT) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: Peter Maydell , =?utf-8?q?Philippe_Mathieu-Dau?= =?utf-8?q?d=C3=A9?= , Peter Delevoryas , =?utf-8?q?C=C3=A9dric_Le_Goater?= Subject: [PATCH 22/25] hw/arm/aspeed_ast10x0: Map the secure SRAM Date: Thu, 19 Jan 2023 13:34:46 +0100 Message-Id: <20230119123449.531826-23-clg@kaod.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230119123449.531826-1-clg@kaod.org> References: <20230119123449.531826-1-clg@kaod.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2404:9400:2221:ea00::3; envelope-from=SRS0=w1SB=5Q=kaod.org=clg@ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Philippe Mathieu-Daudé Some SRAM appears to be used by the Secure Boot unit and crypto accelerators. Name it 'secure sram'. Note, the SRAM base address was already present but unused (the 'SBC' index is used for the MMIO peripheral). Interestingly using CFLAGS=-Winitializer-overrides reports: ../hw/arm/aspeed_ast10x0.c:32:30: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ASPEED_DEV_SBC] = 0x7E6F2000, ^~~~~~~~~~ ../hw/arm/aspeed_ast10x0.c:24:30: note: previous initialization is here [ASPEED_DEV_SBC] = 0x79000000, ^~~~~~~~~~ This fixes with Zephyr: uart:~$ rsa test rsa test vector[0]: [00:00:26.156,000] os: ***** BUS FAULT ***** [00:00:26.157,000] os: Precise data bus error [00:00:26.157,000] os: BFAR Address: 0x79000000 [00:00:26.158,000] os: r0/a1: 0x79000000 r1/a2: 0x00000000 r2/a3: 0x00001800 [00:00:26.158,000] os: r3/a4: 0x79001800 r12/ip: 0x00000800 r14/lr: 0x0001098d [00:00:26.158,000] os: xpsr: 0x81000000 [00:00:26.158,000] os: Faulting instruction address (r15/pc): 0x0001e1bc [00:00:26.158,000] os: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0 [00:00:26.158,000] os: Current thread: 0x38248 (shell_uart) [00:00:26.165,000] os: Halting system Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Peter Delevoryas [ clg: Fixed size of Secure Boot Controller Memory ] Signed-off-by: Cédric Le Goater --- include/hw/arm/aspeed_soc.h | 3 +++ hw/arm/aspeed_ast10x0.c | 11 ++++++++++- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h index 9a5e3c0bac..bd1e03e78a 100644 --- a/include/hw/arm/aspeed_soc.h +++ b/include/hw/arm/aspeed_soc.h @@ -71,6 +71,7 @@ struct AspeedSoCState { AspeedSMCState spi[ASPEED_SPIS_NUM]; EHCISysBusState ehci[ASPEED_EHCIS_NUM]; AspeedSBCState sbc; + MemoryRegion secsram; UnimplementedDeviceState sbc_unimplemented; AspeedSDMCState sdmc; AspeedWDTState wdt[ASPEED_WDTS_NUM]; @@ -105,6 +106,7 @@ struct AspeedSoCClass { const char *cpu_type; uint32_t silicon_rev; uint64_t sram_size; + uint64_t secsram_size; int spis_num; int ehcis_num; int wdts_num; @@ -143,6 +145,7 @@ enum { ASPEED_DEV_SCU, ASPEED_DEV_ADC, ASPEED_DEV_SBC, + ASPEED_DEV_SECSRAM, ASPEED_DEV_EMMC_BC, ASPEED_DEV_VIDEO, ASPEED_DEV_SRAM, diff --git a/hw/arm/aspeed_ast10x0.c b/hw/arm/aspeed_ast10x0.c index 1a06269cb1..592a19d988 100644 --- a/hw/arm/aspeed_ast10x0.c +++ b/hw/arm/aspeed_ast10x0.c @@ -21,7 +21,7 @@ static const hwaddr aspeed_soc_ast1030_memmap[] = { [ASPEED_DEV_SRAM] = 0x00000000, - [ASPEED_DEV_SBC] = 0x79000000, + [ASPEED_DEV_SECSRAM] = 0x79000000, [ASPEED_DEV_IOMEM] = 0x7E600000, [ASPEED_DEV_PWM] = 0x7E610000, [ASPEED_DEV_FMC] = 0x7E620000, @@ -221,6 +221,14 @@ static void aspeed_soc_ast1030_realize(DeviceState *dev_soc, Error **errp) memory_region_add_subregion(s->memory, sc->memmap[ASPEED_DEV_SRAM], &s->sram); + memory_region_init_ram(&s->secsram, OBJECT(s), "sec.sram", + sc->secsram_size, &err); + if (err != NULL) { + error_propagate(errp, err); + return; + } + memory_region_add_subregion(s->memory, sc->memmap[ASPEED_DEV_SECSRAM], + &s->secsram); /* SCU */ if (!sysbus_realize(SYS_BUS_DEVICE(&s->scu), errp)) { @@ -400,6 +408,7 @@ static void aspeed_soc_ast1030_class_init(ObjectClass *klass, void *data) sc->cpu_type = ARM_CPU_TYPE_NAME("cortex-m4"); sc->silicon_rev = AST1030_A1_SILICON_REV; sc->sram_size = 0xc0000; + sc->secsram_size = 0x40000; /* 256 * KiB */ sc->spis_num = 2; sc->ehcis_num = 0; sc->wdts_num = 4;