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x=1602113809; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kWWrsx1bcsXXl1QzJ4Tk9h5X2ZCbYLwy/+8InmU8BBo=; b=nFCnRB2ptBmw0TQSmJ/znwgkYrJjGgFTeOwkP+DVT4w7ktBmRgiK9A/u SsZWblvuFuxjQNfr1S/MrYs/WCf2Fc3bemad0ULjmr21py6/t/LFPrLAf 4ZHGL2/2yupYNJj/ToLoQ8WdDtpy95TUEfGKl2pTb3xPEAFKmmzBU+DER jkF2Pyr4g09BRty3k61J0eSpkc2zZk0IBmI+TahZeyrsY3MSLyfqV59BB 5HrDYTbX5VnSGNPmPlWmbP7Iyd34M34qnkOrJiJfue1omqpB5HSXi6DOe yXNZFlFTNdbbCw5YDLzhwRcUwRx48xVNAFU30vxwGTi7fPB/aUJ7hYYC/ w==; IronPort-SDR: kVtfbpcNZYIz3AuZbK4nKlbBRHBlanrXYJeYUZdPH1rRTBS/IrIBjqCkvcRAOCL4uFBTU+x0wA j2QCI+4uNJY/V4jsBUq5yyKjEY0Kl/2tAFJbcrNlzxqJGYMzvy9lkUQBf48bKSyGsxr7jy/4aq 7g6AMoIua7ApB9hUZlkkLsxpDxs2uYgr1c0nWBEH8oqW6xBmZYGmghcSzml8jkksM4qgNcNS5I qsl6fk+g2/+43Ad5deIGQEUXYD8LRgx5M2kNGes5n4p/G+1pc05bEc9geK5kVC4b0QvkLIvsrV nGk= X-IronPort-AV: E=Sophos;i="5.67,273,1566835200"; d="scan'208";a="227059691" IronPort-SDR: 8S9p4T3edRmpRczheR7YEnHExnkK86UVXRriUTeyVzqTCFZYh+n6rwnX5ICB59bOtPesZM+sd8 TavoPf0bLEGmD8hZeJQqjyQKjeDjfIU2AN32HAkl403pssA9Vd1Lb7kWorLCbnOW8C9/A1E+2Y z7ykdfl1x37r9PJHHemH8v5G26lRdtYoG7+uYZK3sg9FJo7zFIvHHIZcEpkFr+nbdGy+m2UWad OYF3BQtNkX0gRPTzRYk9zxVTjnCpcZ1/IzlKXUMdulbWugG4yeEyz1RlAH4wqhERdoDsxlGWrQ fgkONK4HhZHZkQaHLYaEe1HO IronPort-SDR: PpyqTvErwLcqIF4bQ/xLNCYIYheoec60zDy6Y97jXAvsP+Nf2vTvxiayjoO9AdolGSM3W7ZZfU TxKjA4Ln+UYN7XD4Eo8WmbkCzaL5KNLByzbKzKglNsVhnuqDXGV1kkHJpTR5VScr9ileuZzQtV ZcIzyOl8eh71Rk7K8/YP+E5UApzQKwdAOn2VrXu0uxomT2KWTpmJo7IrHcWlcloWlEQiCLNQQl qX3PuSRlUqIq1IX6JIjon6FW4qcyAESruNYZn3CpGTEjPSyMntPogEGfNfusxiB0d1v3AFJydg jzY= WDCIronportException: Internal From: Alistair Francis To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v3 4/7] riscv/sifive_u: Add the start-in-flash property Date: Tue, 8 Oct 2019 16:32:18 -0700 Message-Id: <03cc7cf5c8400dffd6af60f06fe637f117747d9a.1570577500.git.alistair.francis@wdc.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 68.232.141.245 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alistair23@gmail.com, palmer@sifive.com, alistair.francis@wdc.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Add a property that when set to true QEMU will jump from the ROM code to the start of flash memory instead of DRAM which is the default behaviour. Signed-off-by: Alistair Francis Reviewed-by: Bin Meng Tested-by: Bin Meng --- v3: - Use the start_addr variable instead of editing reset vector - Fix function names hw/riscv/sifive_u.c | 30 +++++++++++++++++++++++++++++- include/hw/riscv/sifive_u.h | 2 ++ 2 files changed, 31 insertions(+), 1 deletion(-) diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index f5741e9a38..43e9f744a3 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -314,6 +314,7 @@ static void riscv_sifive_u_init(MachineState *machine) MemoryRegion *system_memory =3D get_system_memory(); MemoryRegion *main_mem =3D g_new(MemoryRegion, 1); MemoryRegion *flash0 =3D g_new(MemoryRegion, 1); + target_ulong start_addr =3D memmap[SIFIVE_U_DRAM].base; int i; =20 /* Initialize SoC */ @@ -356,6 +357,10 @@ static void riscv_sifive_u_init(MachineState *machine) } } =20 + if (s->start_in_flash) { + start_addr =3D memmap[SIFIVE_U_FLASH0].base; + } + /* reset vector */ uint32_t reset_vec[8] =3D { 0x00000297, /* 1: auipc t0, %pcrel_hi(dtb) */ @@ -368,7 +373,7 @@ static void riscv_sifive_u_init(MachineState *machine) #endif 0x00028067, /* jr t0 */ 0x00000000, - memmap[SIFIVE_U_DRAM].base, /* start: .dword DRAM_BASE */ + start_addr, /* start: .dword */ 0x00000000, /* dtb: */ }; @@ -432,8 +437,31 @@ static void riscv_sifive_u_soc_init(Object *obj) TYPE_CADENCE_GEM); } =20 +static bool sifive_u_get_start_in_flash(Object *obj, Error **errp) +{ + SiFiveUState *s =3D RISCV_U_MACHINE(obj); + + return s->start_in_flash; +} + +static void sifive_u_set_start_in_flash(Object *obj, bool value, Error **e= rrp) +{ + SiFiveUState *s =3D RISCV_U_MACHINE(obj); + + s->start_in_flash =3D value; +} + static void riscv_sifive_u_machine_instance_init(Object *obj) { + SiFiveUState *s =3D RISCV_U_MACHINE(obj); + + s->start_in_flash =3D false; + object_property_add_bool(obj, "start-in-flash", sifive_u_get_start_in_= flash, + sifive_u_set_start_in_flash, NULL); + object_property_set_description(obj, "start-in-flash", + "Set on to tell QEMU's ROM to jump to = " \ + "flash. Otherwise QEMU will jump to DR= AM", + NULL); } =20 static void riscv_sifive_u_soc_realize(DeviceState *dev, Error **errp) diff --git a/include/hw/riscv/sifive_u.h b/include/hw/riscv/sifive_u.h index a921079fbe..2656b43c58 100644 --- a/include/hw/riscv/sifive_u.h +++ b/include/hw/riscv/sifive_u.h @@ -57,6 +57,8 @@ typedef struct SiFiveUState { =20 void *fdt; int fdt_size; + + bool start_in_flash; } SiFiveUState; =20 enum { --=20 2.23.0