As a legacy support, if the vector 5 is not implemented, Power Hypervisor will
consider the max CPUs as 64 instead 256 currently supported during
client-architecture-support negotiation.
This patch implements the vector 5 and set the MAX CPUs to 256 while setting the
others values to 0 (default).
Signed-off-by: Diego Domingos <dieg...@linux.vnet.ibm.com>
---
grub-core/kern/ieee1275/init.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index ec591e6e1..26d3c7a33 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -494,6 +494,19 @@ struct option_vector2 {
grub_uint8_t max_pft_size;
} __attribute__((packed));
+struct option_vector5 {
+ grub_uint8_t byte1;
+ grub_uint8_t byte2;
+ grub_uint8_t byte3;
+ grub_uint8_t cmo;
+ grub_uint8_t associativity;
+ grub_uint8_t bin_opts;
+ grub_uint8_t micro_checkpoint;
+ grub_uint8_t reserved0;
+ grub_uint32_t max_cpus;
+} __attribute__((packed));
+
+
struct pvr_entry {
grub_uint32_t mask;
grub_uint32_t entry;
@@ -512,6 +525,8 @@ struct cas_vector {
grub_uint16_t vec3;
grub_uint8_t vec4_size;
grub_uint16_t vec4;
+ grub_uint8_t vec5_size;
+ struct option_vector5 vec5;
} __attribute__((packed));
/*
@@ -534,7 +549,7 @@ grub_ieee1275_ibm_cas (void)
} args;
struct cas_vector vector = {
.pvr_list = { { 0x00000000, 0xffffffff } }, /* any processor */
- .num_vecs = 4 - 1,
+ .num_vecs = 5 - 1,
.vec1_size = 0,
.vec1 = 0x80, /* ignore */
.vec2_size = 1 + sizeof(struct option_vector2) - 2,
@@ -545,6 +560,10 @@ grub_ieee1275_ibm_cas (void)
.vec3 = 0x00e0, /* ask for FP + VMX + DFP but don't halt if unsatisfied */
.vec4_size = 2 - 1,
.vec4 = 0x0001, /* set required minimum capacity % to the lowest value */
+ .vec5_size = 1 + sizeof(struct option_vector5) - 2,
+ .vec5 = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 256
+ }
};
INIT_IEEE1275_COMMON (&args.common, "call-method", 3, 2);
--
2.31.1
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