This hack originated from before the memory region API was introduced, and increased the size of the ledma DMA device to capture incorrect accesses beyond the end of the ledma device. A full analysis can be found on Artyom's blog at http://tyom.blogspot.co.uk/2010/10/bug-in-all-solaris-versions-after-57.html. With the memory API we can now simply alias the incorrect access onto its intended destination allowing us to remove the hack. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Artyom Tarasenko <atar4qemu@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
#ifndef SPARC32_DMA_H
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#define SPARC32_DMA_H
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#include "hw/sysbus.h"
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#include "hw/scsi/esp.h"
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#include "hw/net/lance.h"
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#define DMA_REGS 4
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#define TYPE_SPARC32_DMA_DEVICE "sparc32-dma-device"
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#define SPARC32_DMA_DEVICE(obj) OBJECT_CHECK(DMADeviceState, (obj), \
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TYPE_SPARC32_DMA_DEVICE)
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typedef struct DMADeviceState DMADeviceState;
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struct DMADeviceState {
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SysBusDevice parent_obj;
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MemoryRegion iomem;
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uint32_t dmaregs[DMA_REGS];
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qemu_irq irq;
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void *iommu;
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qemu_irq gpio[2];
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};
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#define TYPE_SPARC32_ESPDMA_DEVICE "sparc32-espdma"
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#define SPARC32_ESPDMA_DEVICE(obj) OBJECT_CHECK(ESPDMADeviceState, (obj), \
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TYPE_SPARC32_ESPDMA_DEVICE)
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typedef struct ESPDMADeviceState {
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DMADeviceState parent_obj;
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SysBusESPState *esp;
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} ESPDMADeviceState;
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#define TYPE_SPARC32_LEDMA_DEVICE "sparc32-ledma"
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#define SPARC32_LEDMA_DEVICE(obj) OBJECT_CHECK(LEDMADeviceState, (obj), \
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TYPE_SPARC32_LEDMA_DEVICE)
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typedef struct LEDMADeviceState {
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DMADeviceState parent_obj;
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SysBusPCNetState *lance;
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} LEDMADeviceState;
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#define TYPE_SPARC32_DMA "sparc32-dma"
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#define SPARC32_DMA(obj) OBJECT_CHECK(SPARC32DMAState, (obj), \
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TYPE_SPARC32_DMA)
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typedef struct SPARC32DMAState {
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SysBusDevice parent_obj;
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MemoryRegion dmamem;
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MemoryRegion ledma_alias;
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ESPDMADeviceState *espdma;
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LEDMADeviceState *ledma;
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} SPARC32DMAState;
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/* sparc32_dma.c */
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void ledma_memory_read(void *opaque, hwaddr addr,
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uint8_t *buf, int len, int do_bswap);
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void ledma_memory_write(void *opaque, hwaddr addr,
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uint8_t *buf, int len, int do_bswap);
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void espdma_memory_read(void *opaque, uint8_t *buf, int len);
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void espdma_memory_write(void *opaque, uint8_t *buf, int len);
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#endif
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