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Mon, 3 Dec 2018 19:04:09 +0800 (GMT-8) (envelope-from peng.hao2@zte.com.cn) Received: from localhost.localdomain.localdomain ([10.74.120.59]) by szsmtp06.zte.com.cn (Lotus Domino Release 8.5.3FP6) with ESMTP id 2018120319041676-14451308 ; Mon, 3 Dec 2018 19:04:16 +0800 From: Peng Hao To: peter.maydell@linaro.org, drjones@redhat.com, philmd@redhat.com Date: Tue, 4 Dec 2018 03:26:44 +0800 Message-Id: <1543865209-50994-4-git-send-email-peng.hao2@zte.com.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1543865209-50994-1-git-send-email-peng.hao2@zte.com.cn> References: <1543865209-50994-1-git-send-email-peng.hao2@zte.com.cn> X-MIMETrack: Itemize by SMTP Server on SZSMTP06/server/zte_ltd(Release 8.5.3FP6|November 21, 2013) at 2018-12-03 19:04:17, Serialize by Router on notes_smtp/zte_ltd(Release 9.0.1FP7|August 17, 2016) at 2018-12-03 19:04:09, Serialize complete at 2018-12-03 19:04:09 X-MAIL: mse01.zte.com.cn wB3B49Wp097891 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 202.103.147.172 Subject: [Qemu-devel] [PATCH V11 3/8] hw/misc/pvpanic: Add the MMIO interface X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peng Hao , qemu-arm@nongnu.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add pvpanic new type "TYPE_PVPANIC_MMIO" Reviewed-by: Peter Maydell Signed-off-by: Peng Hao --- hw/misc/pvpanic.c | 50 +++++++++++++++++++++++++++++++++++++++++++---- include/hw/misc/pvpanic.h | 1 + 2 files changed, 47 insertions(+), 4 deletions(-) diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c index 0f23a67..c9382a8 100644 --- a/hw/misc/pvpanic.c +++ b/hw/misc/pvpanic.c @@ -2,10 +2,12 @@ * QEMU simulated pvpanic device. * * Copyright Fujitsu, Corp. 2013 + * Copyright (c) 2018 ZTE Ltd. * * Authors: * Wen Congyang * Hu Tao + * Peng Hao * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. @@ -28,6 +30,9 @@ #define PVPANIC_ISA_DEVICE(obj) \ OBJECT_CHECK(PVPanicISAState, (obj), TYPE_PVPANIC) +#define PVPANIC_MMIO_DEVICE(obj) \ + OBJECT_CHECK(PVPanicMMIOState, (obj), TYPE_PVPANIC_MMIO) + static void handle_event(int event) { static bool logged; @@ -56,21 +61,32 @@ typedef struct PVPanicISAState { MemoryRegion mr; } PVPanicISAState; +/* PVPanicMMIOState for sysbus device and + * use mmio. + */ +typedef struct PVPanicMMIOState { + SysBusDevice parent_obj; + /**/ + + /* public */ + MemoryRegion mr; +} PVPanicMMIOState; + /* return supported events on read */ -static uint64_t pvpanic_ioport_read(void *opaque, hwaddr addr, unsigned size) +static uint64_t pvpanic_read(void *opaque, hwaddr addr, unsigned size) { return PVPANIC_PANICKED; } -static void pvpanic_ioport_write(void *opaque, hwaddr addr, uint64_t val, +static void pvpanic_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { handle_event(val); } static const MemoryRegionOps pvpanic_ops = { - .read = pvpanic_ioport_read, - .write = pvpanic_ioport_write, + .read = pvpanic_read, + .write = pvpanic_write, .impl = { .min_access_size = 1, .max_access_size = 1, @@ -125,9 +141,35 @@ static TypeInfo pvpanic_isa_info = { .class_init = pvpanic_isa_class_init, }; +static void pvpanic_mmio_initfn(Object *obj) +{ + PVPanicMMIOState *s = PVPANIC_MMIO_DEVICE(obj); + SysBusDevice *sbd = SYS_BUS_DEVICE(obj); + + memory_region_init_io(&s->mr, OBJECT(s), &pvpanic_ops, s, + TYPE_PVPANIC_MMIO, 2); + sysbus_init_mmio(sbd, &s->mr); +} + +static void pvpanic_mmio_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + set_bit(DEVICE_CATEGORY_MISC, dc->categories); +} + +static TypeInfo pvpanic_mmio_info = { + .name = TYPE_PVPANIC_MMIO, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(PVPanicMMIOState), + .instance_init = pvpanic_mmio_initfn, + .class_init = pvpanic_mmio_class_init, +}; + static void pvpanic_register_types(void) { type_register_static(&pvpanic_isa_info); + type_register_static(&pvpanic_mmio_info); } type_init(pvpanic_register_types) diff --git a/include/hw/misc/pvpanic.h b/include/hw/misc/pvpanic.h index 1ee071a..f1a05b2 100644 --- a/include/hw/misc/pvpanic.h +++ b/include/hw/misc/pvpanic.h @@ -15,6 +15,7 @@ #define HW_MISC_PVPANIC_H #define TYPE_PVPANIC "pvpanic" +#define TYPE_PVPANIC_MMIO "pvpanic-mmio" #define PVPANIC_IOPORT_PROP "ioport"