From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51203) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fiFeT-0008FY-4z for qemu-devel@nongnu.org; Wed, 25 Jul 2018 05:00:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fiFeQ-0002LN-83 for qemu-devel@nongnu.org; Wed, 25 Jul 2018 05:00:09 -0400 From: Stefan Hajnoczi Date: Wed, 25 Jul 2018 09:59:41 +0100 Message-Id: <20180725085944.11856-5-stefanha@redhat.com> In-Reply-To: <20180725085944.11856-1-stefanha@redhat.com> References: <20180725085944.11856-1-stefanha@redhat.com> Subject: [Qemu-devel] [PATCH v3 4/7] target/arm: add "cortex-m0" CPU model List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: mail@steffen-goertz.de, Alistair Francis , Peter Maydell , ilg@livius.net, qemu-arm@nongnu.org, Julia Suvorova , Subbaraya Sundeep , Su Hang , Steffen Gortz , jim@groklearning.com, Joel Stanley , Stefan Hajnoczi Define a "cortex-m0" ARMv6-M CPU model. Most of the register reset values set by other CPU models are not relevant for the cut-down ARMv6-M architecture. Signed-off-by: Stefan Hajnoczi --- target/arm/cpu.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 3848ef46aa..7e477c0d23 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -1255,6 +1255,15 @@ static void arm11mpcore_initfn(Object *obj) cpu->reset_auxcr = 1; } +static void cortex_m0_initfn(Object *obj) +{ + ARMCPU *cpu = ARM_CPU(obj); + set_feature(&cpu->env, ARM_FEATURE_V6); + set_feature(&cpu->env, ARM_FEATURE_M); + + cpu->midr = 0x410cc200; +} + static void cortex_m3_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); @@ -1845,6 +1854,8 @@ static const ARMCPUInfo arm_cpus[] = { { .name = "arm1136", .initfn = arm1136_initfn }, { .name = "arm1176", .initfn = arm1176_initfn }, { .name = "arm11mpcore", .initfn = arm11mpcore_initfn }, + { .name = "cortex-m0", .initfn = cortex_m0_initfn, + .class_init = arm_v7m_class_init }, { .name = "cortex-m3", .initfn = cortex_m3_initfn, .class_init = arm_v7m_class_init }, { .name = "cortex-m4", .initfn = cortex_m4_initfn, -- 2.17.1