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bh=v9Uf99ruqFduJMxH6Qvqbix/JbNg2q9u7s/EVuRNmos=; b=Vd7yh5HD2IPJRNw9BqRMzamLGERDcJZh4tbLMFEEc4kUh+pWpDpUMCNZexuvZp/Th30kbq BNoU4JVsxX8BGwp+iXE+Ov9Yx8J24TfmPnM+2vWRkFehi9JNU+87+W1ZG95qybOpXgaXG0 vnzk0PYKvKpPPem8WscyXg8s3jnZsQU= X-MC-Unique: QgV_EMCnPGiuoCxItA3wPw-1 From: P J P To: Peter Maydell Subject: [PATCH 3/6] vfio: add quirk device write method Date: Wed, 17 Jun 2020 11:09:30 +0530 Message-Id: <20200617053934.122642-4-ppandit@redhat.com> In-Reply-To: <20200617053934.122642-1-ppandit@redhat.com> References: <20200617053934.122642-1-ppandit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.139.110.120; envelope-from=ppandit@redhat.com; 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charset="utf-8" From: Prasad J Pandit Add vfio quirk device mmio write method to avoid NULL pointer dereference issue. Reported-by: Lei Sun Signed-off-by: Prasad J Pandit --- hw/vfio/pci-quirks.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c index f2155ddb1d..5bd98885d5 100644 --- a/hw/vfio/pci-quirks.c +++ b/hw/vfio/pci-quirks.c @@ -13,6 +13,7 @@ #include "qemu/osdep.h" #include "exec/memop.h" #include "qemu/units.h" +#include "qemu/log.h" #include "qemu/error-report.h" #include "qemu/main-loop.h" #include "qemu/module.h" @@ -263,8 +264,15 @@ static uint64_t vfio_ati_3c3_quirk_read(void *opaque, return data; } =20 +static void vfio_ati_3c3_quirk_write(void *opaque, hwaddr addr, + uint64_t data, unsigned size) +{ + qemu_log_mask(LOG_UNIMP, "%s not implemented\n", __func__); +} + static const MemoryRegionOps vfio_ati_3c3_quirk =3D { .read =3D vfio_ati_3c3_quirk_read, + .write =3D vfio_ati_3c3_quirk_write, .endianness =3D DEVICE_LITTLE_ENDIAN, }; =20 --=20 2.26.2