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spapr.h: increase FDT_MAX_SIZE

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Certain SMP topologies stress, e.g. 1 thread/core, 2048 cores and
1 socket, stress the current maximum size of the pSeries FDT:

Calling ibm,client-architecture-support...qemu-system-ppc64: error
creating device tree: (fdt_setprop(fdt, offset,
"ibm,processor-segment-sizes", segs, sizeof(segs))): FDT_ERR_NOSPACE

2048 is the default NR_CPUS value for the pSeries kernel. It's expected
that users will want QEMU to be able to handle this kind of
configuration.

Bumping FDT_MAX_SIZE to 2MB is enough for these setups to be created.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210408204049.221802-3-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Daniel Henrique Barboza 2021-04-08 17:40:49 -03:00 committed by David Gibson
parent 5642e4513e
commit b7573092ab
1 changed files with 1 additions and 1 deletions
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include/hw/ppc/spapr.h
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@ -95,7 +95,7 @@ typedef enum {
#define SPAPR_CAP_FIXED_CCD 0x03
#define SPAPR_CAP_FIXED_NA 0x10 /* Lets leave a bit of a gap... */
#define FDT_MAX_SIZE 0x100000
#define FDT_MAX_SIZE 0x200000
/*
* NUMA related macros. MAX_DISTANCE_REF_POINTS was taken