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Re: [Qemu-devel] [PATCH 1/2] dma/rc4030: Fix off-by-one error in specifi
From: |
Philippe Mathieu-Daudé |
Subject: |
Re: [Qemu-devel] [PATCH 1/2] dma/rc4030: Fix off-by-one error in specified memory region size |
Date: |
Tue, 25 Jun 2019 16:39:53 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 |
On 6/25/19 4:27 PM, Aleksandar Markovic wrote:
> From: Aleksandar Markovic <address@hidden>
>
> The size is one byte less than it should be:
>
> address-space: rc4030-dma
> 0000000000000000-00000000fffffffe (prio 0, i/o): rc4030.dma
>
> rc4030 is used in MIPS Jazz board context.
Ah thanks :) I was planing to send this once at home tonight.
> Signed-off-by: Aleksandar Markovic <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
(qemu) info mtree
...
address-space: rc4030-dma
0000000000000000-00000000ffffffff (prio 0, i/o): rc4030.dma
address-space: dp8393x
0000000000000000-00000000ffffffff (prio 0, i/o): rc4030.dma
Tested-by: Philippe Mathieu-Daudé <address@hidden>
> ---
> hw/dma/rc4030.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/hw/dma/rc4030.c b/hw/dma/rc4030.c
> index 6ccafec..88ff271 100644
> --- a/hw/dma/rc4030.c
> +++ b/hw/dma/rc4030.c
> @@ -23,6 +23,7 @@
> */
>
> #include "qemu/osdep.h"
> +#include "qemu/units.h"
> #include "hw/hw.h"
> #include "hw/mips/mips.h"
> #include "hw/sysbus.h"
> @@ -678,7 +679,7 @@ static void rc4030_realize(DeviceState *dev, Error **errp)
>
> memory_region_init_iommu(&s->dma_mr, sizeof(s->dma_mr),
> TYPE_RC4030_IOMMU_MEMORY_REGION,
> - o, "rc4030.dma", UINT32_MAX);
> + o, "rc4030.dma", 4 * GiB);
> address_space_init(&s->dma_as, MEMORY_REGION(&s->dma_mr), "rc4030-dma");
> }
>
>