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X-Received-From: 2a00:1450:4864:20::443 Subject: [Qemu-devel] [PULL 07/24] edu: mmio: allow 64-bit access in read dispatch 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: Li Qiang Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Li Qiang The edu spec says when address >=3D 0x80, the MMIO area can be accessed by 64-bit. Signed-off-by: Li Qiang Reviewed-by: Philippe Mathieu-Daude Message-Id: <20190510164349.81507-3-liq3ea@163.com> Signed-off-by: Paolo Bonzini --- hw/misc/edu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/hw/misc/edu.c b/hw/misc/edu.c index 65fc32b..33de051 100644 --- a/hw/misc/edu.c +++ b/hw/misc/edu.c @@ -185,7 +185,11 @@ static uint64_t edu_mmio_read(void *opaque, hwaddr add= r, unsigned size) EduState *edu =3D opaque; uint64_t val =3D ~0ULL; =20 - if (size !=3D 4) { + if (addr < 0x80 && size !=3D 4) { + return val; + } + + if (addr >=3D 0x80 && size !=3D 4 && size !=3D 8) { return val; } =20 --=20 1.8.3.1