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powerpc/pseries: Support lower minimum entitlement for virtual processors

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This patch changes the architecture vector to advertise support for a
lower minimum virtual processor entitled capacity.  The default
minimum without this patch is 10%, this patch specifies 1%.

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Robert Jennings 2012-05-10 08:55:49 +00:00 committed by Benjamin Herrenschmidt
parent 8b6ee04067
commit 404e32e4a8
1 changed files with 6 additions and 2 deletions
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8
arch/powerpc/kernel/prom_init.c
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@ -680,6 +680,9 @@ static void __init early_cmdline_parse(void)
#define OV3_VMX 0x40 /* VMX/Altivec */
#define OV3_DFP 0x20 /* decimal FP */
/* Option vector 4: IBM PAPR implementation */
#define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */
/* Option vector 5: PAPR/OF options supported */
#define OV5_LPAR 0x80 /* logical partitioning supported */
#define OV5_SPLPAR 0x40 /* shared-processor LPAR supported */
@ -744,8 +747,9 @@ static unsigned char ibm_architecture_vec[] = {
OV3_FP | OV3_VMX | OV3_DFP,
/* option vector 4: IBM PAPR implementation */
2 - 2, /* length */
3 - 2, /* length */
0, /* don't halt */
OV4_MIN_ENT_CAP, /* minimum VP entitled capacity */
/* option vector 5: PAPR/OF options */
13 - 2, /* length */
@ -762,7 +766,7 @@ static unsigned char ibm_architecture_vec[] = {
* must match by the macro below. Update the definition if
* the structure layout changes.
*/
#define IBM_ARCH_VEC_NRCORES_OFFSET 100
#define IBM_ARCH_VEC_NRCORES_OFFSET 101
W(NR_CPUS), /* number of cores supported */
/* option vector 6: IBM PAPR hints */