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[PATCH 3/6] vfio: add quirk device write method
From: |
P J P |
Subject: |
[PATCH 3/6] vfio: add quirk device write method |
Date: |
Wed, 17 Jun 2020 11:09:30 +0530 |
From: Prasad J Pandit <pjp@fedoraproject.org>
Add vfio quirk device mmio write method to avoid NULL pointer
dereference issue.
Reported-by: Lei Sun <slei.casper@gmail.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
---
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;
}
+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 = {
.read = vfio_ati_3c3_quirk_read,
+ .write = vfio_ati_3c3_quirk_write,
.endianness = DEVICE_LITTLE_ENDIAN,
};
--
2.26.2
- [PATCH 0/6] Add various undefined MMIO r/w functions, P J P, 2020/06/17
- [PATCH 1/6] hw/pci-host: add pci-intack write method, P J P, 2020/06/17
- [PATCH 2/6] pci-host: add pcie-msi read method, P J P, 2020/06/17
- [PATCH 3/6] vfio: add quirk device write method,
P J P <=
- [PATCH 4/6] prep: add ppc-parity write method, P J P, 2020/06/17
- [PATCH 5/6] nvram: add nrf51_soc flash read method, P J P, 2020/06/17
- [PATCH 6/6] spapr_pci: add spapr msi read method, P J P, 2020/06/17
- Re: [PATCH 0/6] Add various undefined MMIO r/w functions, no-reply, 2020/06/17
- Re: [PATCH 0/6] Add various undefined MMIO r/w functions, David Gibson, 2020/06/17