qemu-patch-raspberry4/hw/hppa
Philippe Mathieu-Daudé 4debfdac03 hw/hppa/machine: Map the PDC memory region with higher priority
The region in range [0xf0000000 - 0xf1000000] is the PDC area
(Processor Dependent Code), where the firmware is loaded.
This region has higher priority than the main memory.

When the machine has more than 3840MB of RAM, there is an
overlap. Since the PDC is closer to the CPU in the bus
hierarchy, it gets accessed first, and the CPU does not have
access to the RAM in this range.

To model the same behavior and keep a simple memory layout,
reduce the priority of the RAM region. The PDC region ends
overlapping the RAM.

Acked-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200109000525.24744-4-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-27 10:49:51 -08:00
..
dino.c hw/hppa/dino.c: Improve emulation of Dino PCI chip 2020-01-27 09:23:17 -08:00
hppa_hardware.h hppa: Add emulation of Artist graphics 2020-01-27 10:49:51 -08:00
hppa_sys.h hppa: Add support for LASI chip with i82596 NIC 2020-01-27 10:49:51 -08:00
Kconfig hppa: Add emulation of Artist graphics 2020-01-27 10:49:51 -08:00
lasi.c hppa: add emulation of LASI PS2 controllers 2020-01-27 10:49:51 -08:00
machine.c hw/hppa/machine: Map the PDC memory region with higher priority 2020-01-27 10:49:51 -08:00
Makefile.objs hppa: Add support for LASI chip with i82596 NIC 2020-01-27 10:49:51 -08:00
pci.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
trace-events hppa: Add support for LASI chip with i82596 NIC 2020-01-27 10:49:51 -08:00