diff options
| author | Robert Jennings <rcj@linux.vnet.ibm.com> | 2012-05-10 08:55:49 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-05-14 10:30:13 +1000 |
| commit | 404e32e4a8f68d218b73b7db7bb831d887ab6046 (patch) | |
| tree | d079a7925e339ecbaea4cbd1f5091fbe42347cd0 /arch | |
| parent | 8b6ee04067310a6397476f05f06e52dabd8b0bb6 (diff) | |
| download | linux-404e32e4a8f68d218b73b7db7bb831d887ab6046.tar.bz2 | |
powerpc/pseries: Support lower minimum entitlement for virtual processors
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/prom_init.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 99860273211b..2acf54ae8491 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -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 */ |