In order to boot with more than 64 cores on machines that support the
ibm,client-architecture RTAS call a
new field has been added to the structure. This patch updates that field and
adds a few others in the
process. It would be good if this could go in as a bugfix.
Signed-off-by: Joel Schopp <jsch...@austin.ibm.com>
Index: linux-2.6.git/arch/powerpc/kernel/prom_init.c
===================================================================
--- linux-2.6.git.orig/arch/powerpc/kernel/prom_init.c
+++ linux-2.6.git/arch/powerpc/kernel/prom_init.c
@@ -654,6 +654,9 @@ static void __init early_cmdline_parse(v
#define OV5_CMO 0x00
#endif
+/* Option Vector 6: IBM PAPR hints */
+#define OV6_LINUX 0x02 /* Linux is our OS */
+
/*
* The architecture vector has an array of PVR mask/value pairs,
* followed by # option vectors - 1, followed by the option vectors.
@@ -665,7 +668,7 @@ static unsigned char ibm_architecture_ve
W(0xffffffff), W(0x0f000003), /* all 2.06-compliant */
W(0xffffffff), W(0x0f000002), /* all 2.05-compliant */
W(0xfffffffe), W(0x0f000001), /* all 2.04-compliant and earlier */
- 5 - 1, /* 5 option vectors */
+ 6 - 1, /* 6 option vectors */
/* option vector 1: processor architectures supported */
3 - 2, /* length */
@@ -697,12 +700,26 @@ static unsigned char ibm_architecture_ve
0, /* don't halt */
/* option vector 5: PAPR/OF options */
- 5 - 2, /* length */
+ 13 - 2, /* length */
0, /* don't ignore, don't halt */
OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES | OV5_DRCONF_MEMORY |
OV5_DONATE_DEDICATE_CPU | OV5_MSI,
0,
OV5_CMO,
+ 0, /* reserved */
+ 0, /* reserved */
+ 0, /* reserved */
+ 0, /* reserved */
+ W(NR_CPUS/4), /* max cores supported */
+
+ /* option vector 6: IBM PAPR hints */
+ 4 - 2,
+ 0, /* reserved */
+ 0, /* 1 == no secondary pteg */
+ OV6_LINUX,
+
+ /* option vector 7: IBM PAPR OS identification */
+ /* a human readable ascii string will go here */
};
/* Old method - ELF header with PT_NOTE sections */
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