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authorPhilippe Mathieu-Daudé <f4bug@amsat.org>2020-01-09 01:05:24 +0100
committerRichard Henderson <richard.henderson@linaro.org>2020-01-27 10:49:51 -0800
commitb7746b1194c8b15d8a31ba0cc308175bcb4b96f8 (patch)
tree2730e9b4b4ebc4ef15a07fcd1a27f6030bd753d2 /hw/core/loader.c
parent8262863d4b59aed7e22866234dcfd3d8fb016a6b (diff)
downloadfocaccia-qemu-b7746b1194c8b15d8a31ba0cc308175bcb4b96f8.tar.gz
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hw/hppa/machine: Restrict the total memory size to 3GB
The hardware expects DIMM slots of 1 or 2 GB, allowing up to
4 GB of memory. We want to accept the same amount of memory the
hardware can deal with. DIMMs of 768MB are not available.

However we have to deal with a firmware limitation: currently
SeaBIOS only supports 32-bit, and expects the RAM size in a
32-bit register. When using a 4GB configuration, the 32-bit
register get truncated and we report a size of 0MB to SeaBIOS,
which ends halting the machine:

  $ qemu-system-hppa -m 4g -serial stdio

  SeaBIOS: Machine configured with too little memory (0 MB), minimum is 16 MB.

  SeaBIOS wants SYSTEM HALT.

The easiest way is to restrict the machine to 3GB of memory.

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: <20200109000525.24744-3-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'hw/core/loader.c')
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