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spapr: Fix RTAS sysparm DIAGNOSTICS_RUN_MODE

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This allows the ibm,get-system-parameter RTAS call to succeed for the
DIAGNOSTICS_RUN_MODE system parameter.

The problem can be seen with "ppc64_cpu --run-mode" from the
powerpc-utils package which fails before this patch with "Machine does
not support diagnostic run mode".

This is corrected by using the rtas_st_buffer() function to write to
the buffer.

The RTAS constants are also moved out into a header file, some new
constants added and the surrounding code slightly simplified.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
[agraf: remove some commentary]
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Sam bobroff 2014-06-25 13:54:30 +10:00 • committed by Alexander Graf
parent ce3fa1eca2
commit 3052d95190
2 changed files with 20 additions and 9 deletions
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11
include/hw/ppc/spapr.h
View file

@ -397,6 +397,17 @@ static inline int spapr_allocate_lsi(int hint)
#define RTAS_TOKEN_MAX (RTAS_TOKEN_BASE + 0x21)
/* RTAS ibm,get-system-parameter token values */
#define RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE 42
/* Possible values for the platform-processor-diagnostics-run-mode parameter
* of the RTAS ibm,get-system-parameter call.
*/
#define DIAGNOSTICS_RUN_MODE_DISABLED 0
#define DIAGNOSTICS_RUN_MODE_STAGGERED 1
#define DIAGNOSTICS_RUN_MODE_IMMEDIATE 2
#define DIAGNOSTICS_RUN_MODE_PERIODIC 3
static inline uint64_t ppc64_phys_to_real(uint64_t addr)
{
return addr & ~0xF000000000000000ULL;