On Fri, 10 Mar 2023 at 13:29, Alexander Bulekov wrote:
>
> On 230310 0802, Alexander Bulekov wrote:
> > On 230310 1245, Peter Maydell wrote:
> > > On Fri, 10 Mar 2023 at 12:32, Alexander Bulekov wrote:
> > > > This MR seems to be "lsi-ram".
> > > >
> > > > From hw/scsi/lsi53c895a.c:
> > > >
> > >
On 230310 0802, Alexander Bulekov wrote:
> On 230310 1245, Peter Maydell wrote:
> > On Fri, 10 Mar 2023 at 12:32, Alexander Bulekov wrote:
> > > This MR seems to be "lsi-ram".
> > >
> > > From hw/scsi/lsi53c895a.c:
> > >
> > > memory_region_init_io(&s->ram_io, OBJECT(s), &lsi_ram_ops, s,
> > >
On 10/03/2023 12:45, Peter Maydell wrote:
On Fri, 10 Mar 2023 at 12:32, Alexander Bulekov wrote:
This MR seems to be "lsi-ram".
From hw/scsi/lsi53c895a.c:
memory_region_init_io(&s->ram_io, OBJECT(s), &lsi_ram_ops, s,
"lsi-ram", 0x2000);
So the LSI device is reading an LSI "Script"
On 230310 1245, Peter Maydell wrote:
> On Fri, 10 Mar 2023 at 12:32, Alexander Bulekov wrote:
> > This MR seems to be "lsi-ram".
> >
> > From hw/scsi/lsi53c895a.c:
> >
> > memory_region_init_io(&s->ram_io, OBJECT(s), &lsi_ram_ops, s,
> > "lsi-ram", 0x2000);
> >
> > So the LSI device is rea
On Fri, 10 Mar 2023 at 12:32, Alexander Bulekov wrote:
> This MR seems to be "lsi-ram".
>
> From hw/scsi/lsi53c895a.c:
>
> memory_region_init_io(&s->ram_io, OBJECT(s), &lsi_ram_ops, s,
> "lsi-ram", 0x2000);
>
> So the LSI device is reading an LSI "Script" from its own IO region.. In
> this
On 230310 0723, Alexander Bulekov wrote:
> On 230310 1214, Fiona Ebner wrote:
> > Am 05.02.23 um 05:07 schrieb Alexander Bulekov:
> > > Add a flag to the DeviceState, when a device is engaged in PIO/MMIO/DMA.
> > > This flag is set/checked prior to calling a device's MemoryRegion
> > > handlers, an
On 230310 1214, Fiona Ebner wrote:
> Am 05.02.23 um 05:07 schrieb Alexander Bulekov:
> > Add a flag to the DeviceState, when a device is engaged in PIO/MMIO/DMA.
> > This flag is set/checked prior to calling a device's MemoryRegion
> > handlers, and set when device code initiates DMA. The purpose
Am 05.02.23 um 05:07 schrieb Alexander Bulekov:
> Add a flag to the DeviceState, when a device is engaged in PIO/MMIO/DMA.
> This flag is set/checked prior to calling a device's MemoryRegion
> handlers, and set when device code initiates DMA. The purpose of this
> flag is to prevent two types of D
Add a flag to the DeviceState, when a device is engaged in PIO/MMIO/DMA.
This flag is set/checked prior to calling a device's MemoryRegion
handlers, and set when device code initiates DMA. The purpose of this
flag is to prevent two types of DMA-based reentrancy issues:
1.) mmio -> dma -> mmio cas
