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[PATCH] ieee1275 : extended support in options vector5


From: Avnish Chouhan
Subject: [PATCH] ieee1275 : extended support in options vector5
Date: Fri, 17 Mar 2023 15:08:11 +0530

This patch enables the multiple options in Options Vector5.

Signed-off-by: Avnish Chouhan <avnish@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
---
 grub-core/kern/ieee1275/init.c | 43 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index 7337e28..6f0eeee 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -72,6 +72,42 @@ extern char _end[];
 grub_addr_t grub_ieee1275_original_stack;
 #endif
 
+/* Options vector5 properties */
+
+#define LPAR                0x80
+#define SPLPAR              0x40
+#define DYN_RCON_MEM        0x20
+#define LARGE_PAGES         0x10
+#define DONATE_DCPU_CLS     0x2
+#define PCI_EXP             0x1
+#define BYTE2               (LPAR | SPLPAR | DYN_RCON_MEM | LARGE_PAGES | 
DONATE_DCPU_CLS | PCI_EXP)
+
+#define CMOC                0x80
+#define EXT_CMO             0x40
+#define CMO                 (CMOC | EXT_CMO)
+
+#define ASSOC_REF           0x80
+#define AFFINITY            0x40
+#define NUMA                0x20
+#define ASSOCIATIVITY       (ASSOC_REF | AFFINITY | NUMA)
+
+#define HOTPLUG_INTRPT      0x4
+#define HPT_RESIZE          0x1
+#define BIN_OPTS            (HOTPLUG_INTRPT | HPT_RESIZE)
+
+#define MAX_CPU             256
+
+#define PFO_HWRNG           0x80000000
+#define PFO_HW_COMP         0x40000000
+#define PFO_ENCRYPT         0x20000000
+#define PLATFORM_FACILITIES (PFO_HWRNG | PFO_HW_COMP | PFO_ENCRYPT)
+
+#define SUB_PROCESSORS      1
+
+#define DY_MEM_V2           0x80
+#define DRC_INFO            0x40
+#define BYTE22              (DY_MEM_V2 | DRC_INFO)
+
 void
 grub_exit (void)
 {
@@ -511,6 +547,11 @@ struct option_vector5
   grub_uint8_t micro_checkpoint;
   grub_uint8_t reserved0;
   grub_uint32_t max_cpus;
+  grub_uint16_t base_PAPR;
+  grub_uint16_t mem_reference;
+  grub_uint32_t platform_facilities;
+  grub_uint8_t sub_processors;
+  grub_uint8_t byte22;
 } GRUB_PACKED;
 
 struct pvr_entry
@@ -573,7 +614,7 @@ grub_ieee1275_ibm_cas (void)
     .vec4 = 0x0001, /* set required minimum capacity % to the lowest value */
     .vec5_size = 1 + sizeof (struct option_vector5) - 2,
     .vec5 = {
-      0, 192, 0, 128, 0, 0, 0, 0, 256
+      0, BYTE2, 0, CMO, ASSOCIATIVITY, BIN_OPTS, 0, 0, MAX_CPU, 0, 0, 
PLATFORM_FACILITIES, SUB_PROCESSORS, BYTE22
     }
   };
 
-- 
2.31.1




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