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From: P J P <ppandit@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
	"Prasad J Pandit" <pjp@fedoraproject.org>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Li Qiang" <liq3ea@gmail.com>,
	"QEMU Developers" <qemu-devel@nongnu.org>,
	"Lei Sun" <slei.casper@gmail.com>,
	"Alex Williamson" <alex.williamson@redhat.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"David Gibson" <david@gibson.dropbear.id.au>
Subject: [PATCH v3 4/9] prep: add ppc-parity write method
Date: Tue, 30 Jun 2020 17:57:05 +0530	[thread overview]
Message-ID: <20200630122710.1119158-5-ppandit@redhat.com> (raw)
In-Reply-To: <20200630122710.1119158-1-ppandit@redhat.com>

From: Prasad J Pandit <pjp@fedoraproject.org>

Add ppc-parity mmio write method to avoid NULL pointer dereference
issue.

Reported-by: Lei Sun <slei.casper@gmail.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
---
 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 @@
  */
 
 #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, hwaddr addr,
     return val;
 }
 
+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 = {
     .read = ppc_parity_error_readl,
+    .write = ppc_parity_error_writel,
     .valid = {
         .min_access_size = 4,
         .max_access_size = 4,
-- 
2.26.2



  parent reply	other threads:[~2020-06-30 12:32 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-30 12:27 [PATCH v3 0/9] memory: assert and define MemoryRegionOps callbacks P J P
2020-06-30 12:27 ` [PATCH v3 1/9] hw/pci-host: add pci-intack write method P J P
2020-07-16 17:34   ` Peter Maydell
2020-06-30 12:27 ` [PATCH v3 2/9] pci-host: add pcie-msi read method P J P
2020-07-16 16:54   ` Peter Maydell
2020-06-30 12:27 ` [PATCH v3 3/9] vfio: add quirk device write method P J P
2020-07-16 17:46   ` Peter Maydell
2020-07-17 15:53     ` Alex Williamson
2020-07-17 15:57       ` Peter Maydell
2020-07-17 16:23         ` Alex Williamson
2020-06-30 12:27 ` P J P [this message]
2020-06-30 12:27 ` [PATCH v3 5/9] nvram: add nrf51_soc flash read method P J P
2020-07-16 16:29   ` Peter Maydell
2020-06-30 12:27 ` [PATCH v3 6/9] spapr_pci: add spapr msi " P J P
2020-07-16 16:38   ` Peter Maydell
2020-06-30 12:27 ` [PATCH v3 7/9] tz-ppc: add dummy read/write methods P J P
2020-06-30 12:34   ` Philippe Mathieu-Daudé
2020-07-01  1:23   ` Li Qiang
2020-07-16 16:09   ` Peter Maydell
2020-06-30 12:27 ` [PATCH v3 8/9] imx7-ccm: add digprog mmio write method P J P
2020-07-16 16:21   ` Peter Maydell
2020-07-16 16:55     ` P J P
2020-07-16 16:56       ` Peter Maydell
2020-06-30 12:27 ` [PATCH v3 9/9] memory: assert MemoryRegionOps callbacks are defined P J P
2020-07-16 17:33   ` Peter Maydell
2020-06-30 13:46 ` [PATCH v3 0/9] memory: assert and define MemoryRegionOps callbacks no-reply
2020-07-13 18:58 ` P J P
2020-07-13 19:38   ` Philippe Mathieu-Daudé

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