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bh=nR2mlk71ijNyuzlqjwtm3TtC/BDoRCd3qq5v1Q1dItE=; b=LoOPKzoB4EH7J6h5YIXNiJmmEXGENUoZ+DhuGsYvZrYRBILyi2Rt66Kgb+Hmc6KRd2BW1b arU5vbFeLbTF8BkYXrFudy1qDzVUfSdUewB7ZidR2//81EBTmC62rXUShuMcyQ+kBnttwD hB6FZktzZC1yf+kjpI4dzc/8/LHR6tE= X-MC-Unique: zynKvBOAM8Wo9xnDO-NmNQ-1 From: P J P To: Paolo Bonzini Subject: [PATCH v3 4/9] prep: add ppc-parity write method Date: Tue, 30 Jun 2020 17:57:05 +0530 Message-Id: <20200630122710.1119158-5-ppandit@redhat.com> In-Reply-To: <20200630122710.1119158-1-ppandit@redhat.com> References: <20200630122710.1119158-1-ppandit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=ppandit@redhat.com 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; 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charset="utf-8" From: Prasad J Pandit Add ppc-parity mmio write method to avoid NULL pointer dereference issue. Reported-by: Lei Sun Acked-by: David Gibson Signed-off-by: Prasad J Pandit --- hw/ppc/prep_systemio.c | 8 ++++++++ 1 file changed, 8 insertions(+) Update v3: Add Acked-by: ... -> https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg08053.html diff --git a/hw/ppc/prep_systemio.c b/hw/ppc/prep_systemio.c index bbc51b6e9a..097f68f4a5 100644 --- a/hw/ppc/prep_systemio.c +++ b/hw/ppc/prep_systemio.c @@ -23,6 +23,7 @@ */ =20 #include "qemu/osdep.h" +#include "qemu/log.h" #include "hw/irq.h" #include "hw/isa/isa.h" #include "hw/qdev-properties.h" @@ -235,8 +236,15 @@ static uint64_t ppc_parity_error_readl(void *opaque, h= waddr addr, return val; } =20 +static void ppc_parity_error_writel(void *opaque, hwaddr addr, + uint64_t data, unsigned size) +{ + qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid write access\n", __func__); +} + static const MemoryRegionOps ppc_parity_error_ops =3D { .read =3D ppc_parity_error_readl, + .write =3D ppc_parity_error_writel, .valid =3D { .min_access_size =3D 4, .max_access_size =3D 4, --=20 2.26.2