ppc64le: sync cas/tpm patchset with upstream

Signed-off-by: Robbie Harwood <rharwood@redhat.com>

0175-ieee1275-claim-more-memory.patch

@@ -1,252 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Daniel Axtens <dja@axtens.net>
-Date: Wed, 15 Apr 2020 23:28:29 +1000
-Subject: [PATCH] ieee1275: claim more memory
-
-On powerpc-ieee1275, we are running out of memory trying to verify
-anything. This is because:
-
- - we have to load an entire file into memory to verify it. This is
-   extremely difficult to change with appended signatures.
- - We only have 32MB of heap.
- - Distro kernels are now often around 30MB.
-
-So we want to claim more memory from OpenFirmware for our heap.
-
-There are some complications:
-
- - The grub mm code isn't the only thing that will make claims on
-   memory from OpenFirmware:
-
-    * PFW/SLOF will have claimed some for their own use.
-
-    * The ieee1275 loader will try to find other bits of memory that we
-      haven't claimed to place the kernel and initrd when we go to boot.
-
-    * Once we load Linux, it will also try to claim memory. It claims
-      memory without any reference to /memory/available, it just starts
-      at min(top of RMO, 768MB) and works down. So we need to avoid this
-      area. See arch/powerpc/kernel/prom_init.c as of v5.11.
-
- - The smallest amount of memory a ppc64 KVM guest can have is 256MB.
-   It doesn't work with distro kernels but can work with custom kernels.
-   We should maintain support for that. (ppc32 can boot with even less,
-   and we shouldn't break that either.)
-
- - Even if a VM has more memory, the memory OpenFirmware makes available
-   as Real Memory Area can be restricted. A freshly created LPAR on a
-   PowerVM machine is likely to have only 256MB available to OpenFirmware
-   even if it has many gigabytes of memory allocated.
-
-EFI systems will attempt to allocate 1/4th of the available memory,
-clamped to between 1M and 1600M. That seems like a good sort of
-approach, we just need to figure out if 1/4 is the right fraction
-for us.
-
-We don't know in advance how big the kernel and initrd are going to be,
-which makes figuring out how much memory we can take a bit tricky.
-
-To figure out how much memory we should leave unused, I looked at:
-
- - an Ubuntu 20.04.1 ppc64le pseries KVM guest:
-    vmlinux: ~30MB
-    initrd:  ~50MB
-
- - a RHEL8.2 ppc64le pseries KVM guest:
-    vmlinux: ~30MB
-    initrd:  ~30MB
-
-Ubuntu VMs struggle to boot with just 256MB under SLOF.
-RHEL likewise has a higher minimum supported memory figure.
-So lets first consider a distro kernel and 512MB of addressible memory.
-(This is the default case for anything booting under PFW.) Say we lose
-131MB to PFW (based on some tests). This leaves us 381MB. 1/4 of 381MB
-is ~95MB. That should be enough to verify a 30MB vmlinux and should
-leave plenty of space to load Linux and the initrd.
-
-If we consider 256MB of RMA under PFW, we have just 125MB remaining. 1/4
-of that is a smidge under 32MB, which gives us very poor odds of verifying
-a distro-sized kernel. However, if we need 80MB just to put the kernel
-and initrd in memory, we can't claim any more than 45MB anyway. So 1/4
-will do. We'll come back to this later.
-
-grub is always built as a 32-bit binary, even if it's loading a ppc64
-kernel. So we can't address memory beyond 4GB. This gives a natural cap
-of 1GB for powerpc-ieee1275.
-
-Also apply this 1/4 approach to i386-ieee1275, but keep the 32MB cap.
-
-make check still works for both i386 and powerpc and I've booted
-powerpc grub with this change under SLOF and PFW.
-
-Signed-off-by: Daniel Axtens <dja@axtens.net>
----
- grub-core/kern/ieee1275/init.c | 81 +++++++++++++++++++++++++++++++++---------
- docs/grub-dev.texi             |  6 ++--
- 2 files changed, 69 insertions(+), 18 deletions(-)
-
-diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
-index 0dcd114ce5..c61d91a028 100644
---- a/grub-core/kern/ieee1275/init.c
-+++ b/grub-core/kern/ieee1275/init.c
-@@ -46,11 +46,12 @@
- #endif
- #include <grub/lockdown.h>
- 
--/* The maximum heap size we're going to claim */
-+/* The maximum heap size we're going to claim. Not used by sparc.
-+   We allocate 1/4 of the available memory under 4G, up to this limit. */
- #ifdef __i386__
- #define HEAP_MAX_SIZE		(unsigned long) (64 * 1024 * 1024)
--#else
--#define HEAP_MAX_SIZE		(unsigned long) (32 * 1024 * 1024)
-+#else // __powerpc__
-+#define HEAP_MAX_SIZE		(unsigned long) (1 * 1024 * 1024 * 1024)
- #endif
- 
- extern char _end[];
-@@ -147,16 +148,45 @@ grub_claim_heap (void)
- 				 + GRUB_KERNEL_MACHINE_STACK_SIZE), 0x200000);
- }
- #else
--/* Helper for grub_claim_heap.  */
-+/* Helper for grub_claim_heap on powerpc. */
-+static int
-+heap_size (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
-+	   void *data)
-+{
-+  grub_uint32_t total = *(grub_uint32_t *)data;
-+
-+  if (type != GRUB_MEMORY_AVAILABLE)
-+    return 0;
-+
-+  /* Do not consider memory beyond 4GB */
-+  if (addr > 0xffffffffUL)
-+    return 0;
-+
-+  if (addr + len > 0xffffffffUL)
-+    len = 0xffffffffUL - addr;
-+
-+  total += len;
-+  *(grub_uint32_t *)data = total;
-+
-+  return 0;
-+}
-+
- static int
- heap_init (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
- 	   void *data)
- {
--  unsigned long *total = data;
-+  grub_uint32_t total = *(grub_uint32_t *)data;
- 
-   if (type != GRUB_MEMORY_AVAILABLE)
-     return 0;
- 
-+  /* Do not consider memory beyond 4GB */
-+  if (addr > 0xffffffffUL)
-+    return 0;
-+
-+  if (addr + len > 0xffffffffUL)
-+    len = 0xffffffffUL - addr;
-+
-   if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM))
-     {
-       if (addr + len <= 0x180000)
-@@ -170,10 +200,6 @@ heap_init (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
-     }
-   len -= 1; /* Required for some firmware.  */
- 
--  /* Never exceed HEAP_MAX_SIZE  */
--  if (*total + len > HEAP_MAX_SIZE)
--    len = HEAP_MAX_SIZE - *total;
--
-   /* In theory, firmware should already prevent this from happening by not
-      listing our own image in /memory/available.  The check below is intended
-      as a safeguard in case that doesn't happen.  However, it doesn't protect
-@@ -185,6 +211,18 @@ heap_init (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
-       len = 0;
-     }
- 
-+  /* If this block contains 0x30000000 (768MB), do not claim below that.
-+     Linux likes to claim memory at min(RMO top, 768MB) and works down
-+     without reference to /memory/available. */
-+  if ((addr < 0x30000000) && ((addr + len) > 0x30000000))
-+    {
-+      len = len - (0x30000000 - addr);
-+      addr = 0x30000000;
-+    }
-+
-+  if (len > total)
-+    len = total;
-+
-   if (len)
-     {
-       grub_err_t err;
-@@ -193,10 +231,12 @@ heap_init (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
-       if (err)
- 	return err;
-       grub_mm_init_region ((void *) (grub_addr_t) addr, len);
-+      total -= len;
-     }
- 
--  *total += len;
--  if (*total >= HEAP_MAX_SIZE)
-+  *(grub_uint32_t *)data = total;
-+
-+  if (total == 0)
-     return 1;
- 
-   return 0;
-@@ -205,13 +245,22 @@ heap_init (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
- static void 
- grub_claim_heap (void)
- {
--  unsigned long total = 0;
-+  grub_uint32_t total = 0;
- 
-   if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM))
--    heap_init (GRUB_IEEE1275_STATIC_HEAP_START, GRUB_IEEE1275_STATIC_HEAP_LEN,
--	       1, &total);
--  else
--    grub_machine_mmap_iterate (heap_init, &total);
-+    {
-+      heap_init (GRUB_IEEE1275_STATIC_HEAP_START, GRUB_IEEE1275_STATIC_HEAP_LEN,
-+		 1, &total);
-+      return;
-+    }
-+
-+  grub_machine_mmap_iterate (heap_size, &total);
-+
-+  total = total / 4;
-+  if (total > HEAP_MAX_SIZE)
-+    total = HEAP_MAX_SIZE;
-+
-+  grub_machine_mmap_iterate (heap_init, &total);
- }
- #endif
- 
-diff --git a/docs/grub-dev.texi b/docs/grub-dev.texi
-index 19f708ee66..90083772c8 100644
---- a/docs/grub-dev.texi
-+++ b/docs/grub-dev.texi
-@@ -1047,7 +1047,9 @@ space is limited to 4GiB. GRUB allocates pages from EFI for its heap, at most
- 1.6 GiB.
- 
- On i386-ieee1275 and powerpc-ieee1275 GRUB uses same stack as IEEE1275.
--It allocates at most 32MiB for its heap.
-+
-+On i386-ieee1275, GRUB allocates at most 32MiB for its heap. On
-+powerpc-ieee1275, GRUB allocates up to 1GiB.
- 
- On sparc64-ieee1275 stack is 256KiB and heap is 2MiB.
- 
-@@ -1075,7 +1077,7 @@ In short:
- @item i386-qemu               @tab 60 KiB  @tab < 4 GiB
- @item *-efi                   @tab ?       @tab < 1.6 GiB
- @item i386-ieee1275           @tab ?       @tab < 32 MiB
--@item powerpc-ieee1275        @tab ?       @tab < 32 MiB
-+@item powerpc-ieee1275        @tab ?       @tab < 1 GiB
- @item sparc64-ieee1275        @tab 256KiB  @tab 2 MiB
- @item arm-uboot               @tab 256KiB  @tab 2 MiB
- @item mips(el)-qemu_mips      @tab 2MiB    @tab 253 MiB

0176-ieee1275-request-memory-with-ibm-client-architecture.patch

@@ -1,268 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Daniel Axtens <dja@axtens.net>
-Date: Fri, 16 Apr 2021 11:48:46 +1000
-Subject: [PATCH] ieee1275: request memory with ibm,client-architecture-support
-
-On PowerVM, the first time we boot a Linux partition, we may only get
-256MB of real memory area, even if the partition has more memory.
-
-This isn't really enough. Fortunately, the Power Architecture Platform
-Reference (PAPR) defines a method we can call to ask for more memory.
-This is part of the broad and powerful ibm,client-architecture-support
-(CAS) method.
-
-CAS can do an enormous amount of things on a PAPR platform: as well as
-asking for memory, you can set the supported processor level, the interrupt
-controller, hash vs radix mmu, and so on. We want to touch as little of
-this as possible because we don't want to step on the toes of the future OS.
-
-If:
-
- - we are running under what we think is PowerVM (compatible property of /
-   begins with "IBM"), and
-
- - the full amount of RMA is less than 512MB (as determined by the reg
-   property of /memory)
-
-then call CAS as follows: (refer to the Linux on Power Architecture
-Reference, LoPAR, which is public, at B.5.2.3):
-
- - Use the "any" PVR value and supply 2 option vectors.
-
- - Set option vector 1 (PowerPC Server Processor Architecture Level)
-   to "ignore".
-
- - Set option vector 2 with default or Linux-like options, including a
-   min-rma-size of 512MB.
-
-This will cause a CAS reboot and the partition will restart with 512MB
-of RMA. Grub will notice the 512MB and not call CAS again.
-
-(A partition can be configured with only 256MB of memory, which would
-mean this request couldn't be satisfied, but PFW refuses to load with
-only 256MB of memory, so it's a bit moot. SLOF will run fine with 256MB,
-but we will never call CAS under qemu/SLOF because /compatible won't
-begin with "IBM".)
-
-One of the first things Linux does while still running under OpenFirmware
-is to call CAS with a much fuller set of options (including asking for
-512MB of memory). This includes a much more restrictive set of PVR values
-and processor support levels, and this will induce another reboot. On this
-reboot grub will again notice the higher RMA, and not call CAS. We will get
-to Linux, Linux will call CAS but because the values are now set for Linux
-this will not induce another CAS reboot and we will finally boot.
-
-On all subsequent boots, everything will be configured with 512MB of RMA
-and all the settings Linux likes, so there will be no further CAS reboots.
-
-(phyp is super sticky with the RMA size - it persists even on cold boots.
-So if you've ever booted Linux in a partition, you'll probably never have
-grub call CAS. It'll only ever fire the first time a partition loads grub,
-or if you deliberately lower the amount of memory your partition has below
-512MB.)
-
-Signed-off-by: Daniel Axtens <dja@axtens.net>
----
- grub-core/kern/ieee1275/cmain.c  |   3 +
- grub-core/kern/ieee1275/init.c   | 144 ++++++++++++++++++++++++++++++++++++++-
- include/grub/ieee1275/ieee1275.h |   8 ++-
- 3 files changed, 152 insertions(+), 3 deletions(-)
-
-diff --git a/grub-core/kern/ieee1275/cmain.c b/grub-core/kern/ieee1275/cmain.c
-index 04df9d2c66..6435628ec5 100644
---- a/grub-core/kern/ieee1275/cmain.c
-+++ b/grub-core/kern/ieee1275/cmain.c
-@@ -127,6 +127,9 @@ grub_ieee1275_find_options (void)
- 	      break;
- 	    }
- 	}
-+
-+      if (grub_strncmp (tmp, "IBM,", 4) == 0)
-+	grub_ieee1275_set_flag (GRUB_IEEE1275_FLAG_CAN_TRY_CAS_FOR_MORE_MEMORY);
-     }
- 
-   if (is_smartfirmware)
-diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
-index c61d91a028..9704715c83 100644
---- a/grub-core/kern/ieee1275/init.c
-+++ b/grub-core/kern/ieee1275/init.c
-@@ -242,6 +242,135 @@ heap_init (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
-   return 0;
- }
- 
-+/* How much memory does OF believe it has? (regardless of whether
-+   it's accessible or not) */
-+static grub_err_t
-+grub_ieee1275_total_mem (grub_uint64_t *total)
-+{
-+  grub_ieee1275_phandle_t root;
-+  grub_ieee1275_phandle_t memory;
-+  grub_uint32_t reg[4];
-+  grub_ssize_t reg_size;
-+  grub_uint32_t address_cells = 1;
-+  grub_uint32_t size_cells = 1;
-+  grub_uint64_t size;
-+
-+  /* If we fail to get to the end, report 0. */
-+  *total = 0;
-+
-+  /* Determine the format of each entry in `reg'.  */
-+  grub_ieee1275_finddevice ("/", &root);
-+  grub_ieee1275_get_integer_property (root, "#address-cells", &address_cells,
-+				      sizeof address_cells, 0);
-+  grub_ieee1275_get_integer_property (root, "#size-cells", &size_cells,
-+				      sizeof size_cells, 0);
-+
-+  if (size_cells > address_cells)
-+    address_cells = size_cells;
-+
-+  /* Load `/memory/reg'.  */
-+  if (grub_ieee1275_finddevice ("/memory", &memory))
-+    return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
-+		       "couldn't find /memory node");
-+  if (grub_ieee1275_get_integer_property (memory, "reg", reg,
-+					  sizeof reg, &reg_size))
-+    return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
-+		       "couldn't examine /memory/reg property");
-+  if (reg_size < 0 || (grub_size_t) reg_size > sizeof (reg))
-+    return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
-+                       "/memory response buffer exceeded");
-+
-+  if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_BROKEN_ADDRESS_CELLS))
-+    {
-+      address_cells = 1;
-+      size_cells = 1;
-+    }
-+
-+  /* Decode only the size */
-+  size = reg[address_cells];
-+  if (size_cells == 2)
-+    size = (size << 32) | reg[address_cells + 1];
-+
-+  *total = size;
-+
-+  return grub_errno;
-+}
-+
-+/* Based on linux - arch/powerpc/kernel/prom_init.c */
-+struct option_vector2 {
-+	grub_uint8_t byte1;
-+	grub_uint16_t reserved;
-+	grub_uint32_t real_base;
-+	grub_uint32_t real_size;
-+	grub_uint32_t virt_base;
-+	grub_uint32_t virt_size;
-+	grub_uint32_t load_base;
-+	grub_uint32_t min_rma;
-+	grub_uint32_t min_load;
-+	grub_uint8_t min_rma_percent;
-+	grub_uint8_t max_pft_size;
-+} __attribute__((packed));
-+
-+struct pvr_entry {
-+	  grub_uint32_t mask;
-+	  grub_uint32_t entry;
-+};
-+
-+struct cas_vector {
-+    struct {
-+      struct pvr_entry terminal;
-+    } pvr_list;
-+    grub_uint8_t num_vecs;
-+    grub_uint8_t vec1_size;
-+    grub_uint8_t vec1;
-+    grub_uint8_t vec2_size;
-+    struct option_vector2 vec2;
-+} __attribute__((packed));
-+
-+/* Call ibm,client-architecture-support to try to get more RMA.
-+   We ask for 512MB which should be enough to verify a distro kernel.
-+   We ignore most errors: if we don't succeed we'll proceed with whatever
-+   memory we have. */
-+static void
-+grub_ieee1275_ibm_cas (void)
-+{
-+  int rc;
-+  grub_ieee1275_ihandle_t root;
-+  struct cas_args {
-+    struct grub_ieee1275_common_hdr common;
-+    grub_ieee1275_cell_t method;
-+    grub_ieee1275_ihandle_t ihandle;
-+    grub_ieee1275_cell_t cas_addr;
-+    grub_ieee1275_cell_t result;
-+  } args;
-+  struct cas_vector vector = {
-+    .pvr_list = { { 0x00000000, 0xffffffff } }, /* any processor */
-+    .num_vecs = 2 - 1,
-+    .vec1_size = 0,
-+    .vec1 = 0x80, /* ignore */
-+    .vec2_size = 1 + sizeof(struct option_vector2) - 2,
-+    .vec2 = {
-+      0, 0, -1, -1, -1, -1, -1, 512, -1, 0, 48
-+    },
-+  };
-+
-+  INIT_IEEE1275_COMMON (&args.common, "call-method", 3, 2);
-+  args.method = (grub_ieee1275_cell_t)"ibm,client-architecture-support";
-+  rc = grub_ieee1275_open("/", &root);
-+  if (rc) {
-+	  grub_error (GRUB_ERR_IO, "could not open root when trying to call CAS");
-+	  return;
-+  }
-+  args.ihandle = root;
-+  args.cas_addr = (grub_ieee1275_cell_t)&vector;
-+
-+  grub_printf("Calling ibm,client-architecture-support...");
-+  IEEE1275_CALL_ENTRY_FN (&args);
-+  grub_printf("done\n");
-+
-+  grub_ieee1275_close(root);
-+}
-+
- static void 
- grub_claim_heap (void)
- {
-@@ -249,11 +378,22 @@ grub_claim_heap (void)
- 
-   if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM))
-     {
--      heap_init (GRUB_IEEE1275_STATIC_HEAP_START, GRUB_IEEE1275_STATIC_HEAP_LEN,
--		 1, &total);
-+      heap_init (GRUB_IEEE1275_STATIC_HEAP_START,
-+		 GRUB_IEEE1275_STATIC_HEAP_LEN, 1, &total);
-       return;
-     }
- 
-+  if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CAN_TRY_CAS_FOR_MORE_MEMORY))
-+    {
-+      grub_uint64_t rma_size;
-+      grub_err_t err;
-+
-+      err = grub_ieee1275_total_mem (&rma_size);
-+      /* if we have an error, don't call CAS, just hope for the best */
-+      if (!err && rma_size < (512 * 1024 * 1024))
-+	grub_ieee1275_ibm_cas();
-+    }
-+
-   grub_machine_mmap_iterate (heap_size, &total);
- 
-   total = total / 4;
-diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
-index b5a1d49bbc..e0a6c2ce1e 100644
---- a/include/grub/ieee1275/ieee1275.h
-+++ b/include/grub/ieee1275/ieee1275.h
-@@ -149,7 +149,13 @@ enum grub_ieee1275_flag
- 
-   GRUB_IEEE1275_FLAG_RAW_DEVNAMES,
-   
--  GRUB_IEEE1275_FLAG_DISABLE_VIDEO_SUPPORT
-+  GRUB_IEEE1275_FLAG_DISABLE_VIDEO_SUPPORT,
-+
-+  /* On PFW, the first time we boot a Linux partition, we may only get 256MB
-+     of real memory area, even if the partition has more memory. Set this flag
-+     if we think we're running under PFW. Then, if this flag is set, and the
-+     RMA is only 256MB in size, try asking for more with CAS. */
-+  GRUB_IEEE1275_FLAG_CAN_TRY_CAS_FOR_MORE_MEMORY,
- };
- 
- extern int EXPORT_FUNC(grub_ieee1275_test_flag) (enum grub_ieee1275_flag flag);

0212-powerpc-do-CAS-in-a-more-compatible-way.patch

@@ -1,110 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Daniel Axtens <dja@axtens.net>
-Date: Fri, 8 Apr 2022 12:35:28 +1000
-Subject: [PATCH] powerpc: do CAS in a more compatible way
-
-I wrongly assumed that the most compatible way to perform CAS
-negotiation was to only set the minimum number of vectors required
-to ask for more memory. It turns out that this messes up booting
-if the minimum VP capacity would be less than the default 10% in
-vector 4.
-
-Linux configures the minimum capacity to be 1%, so copy it for that
-and for vector 3 which we now need to specify as well.
-
-Signed-off-by: Daniel Axtens <dja@axtens.net>
----
- grub-core/kern/ieee1275/init.c | 54 ++++++++++++++++++++++++------------------
- 1 file changed, 31 insertions(+), 23 deletions(-)
-
-diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
-index 9704715c83..ef55107467 100644
---- a/grub-core/kern/ieee1275/init.c
-+++ b/grub-core/kern/ieee1275/init.c
-@@ -298,33 +298,37 @@ grub_ieee1275_total_mem (grub_uint64_t *total)
- 
- /* Based on linux - arch/powerpc/kernel/prom_init.c */
- struct option_vector2 {
--	grub_uint8_t byte1;
--	grub_uint16_t reserved;
--	grub_uint32_t real_base;
--	grub_uint32_t real_size;
--	grub_uint32_t virt_base;
--	grub_uint32_t virt_size;
--	grub_uint32_t load_base;
--	grub_uint32_t min_rma;
--	grub_uint32_t min_load;
--	grub_uint8_t min_rma_percent;
--	grub_uint8_t max_pft_size;
-+  grub_uint8_t byte1;
-+  grub_uint16_t reserved;
-+  grub_uint32_t real_base;
-+  grub_uint32_t real_size;
-+  grub_uint32_t virt_base;
-+  grub_uint32_t virt_size;
-+  grub_uint32_t load_base;
-+  grub_uint32_t min_rma;
-+  grub_uint32_t min_load;
-+  grub_uint8_t min_rma_percent;
-+  grub_uint8_t max_pft_size;
- } __attribute__((packed));
- 
- struct pvr_entry {
--	  grub_uint32_t mask;
--	  grub_uint32_t entry;
-+  grub_uint32_t mask;
-+  grub_uint32_t entry;
- };
- 
- struct cas_vector {
--    struct {
--      struct pvr_entry terminal;
--    } pvr_list;
--    grub_uint8_t num_vecs;
--    grub_uint8_t vec1_size;
--    grub_uint8_t vec1;
--    grub_uint8_t vec2_size;
--    struct option_vector2 vec2;
-+  struct {
-+    struct pvr_entry terminal;
-+  } pvr_list;
-+  grub_uint8_t num_vecs;
-+  grub_uint8_t vec1_size;
-+  grub_uint8_t vec1;
-+  grub_uint8_t vec2_size;
-+  struct option_vector2 vec2;
-+  grub_uint8_t vec3_size;
-+  grub_uint16_t vec3;
-+  grub_uint8_t vec4_size;
-+  grub_uint16_t vec4;
- } __attribute__((packed));
- 
- /* Call ibm,client-architecture-support to try to get more RMA.
-@@ -345,13 +349,17 @@ grub_ieee1275_ibm_cas (void)
-   } args;
-   struct cas_vector vector = {
-     .pvr_list = { { 0x00000000, 0xffffffff } }, /* any processor */
--    .num_vecs = 2 - 1,
-+    .num_vecs = 4 - 1,
-     .vec1_size = 0,
-     .vec1 = 0x80, /* ignore */
-     .vec2_size = 1 + sizeof(struct option_vector2) - 2,
-     .vec2 = {
-       0, 0, -1, -1, -1, -1, -1, 512, -1, 0, 48
-     },
-+    .vec3_size = 2 - 1,
-+    .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
-   };
- 
-   INIT_IEEE1275_COMMON (&args.common, "call-method", 3, 2);
-@@ -364,7 +372,7 @@ grub_ieee1275_ibm_cas (void)
-   args.ihandle = root;
-   args.cas_addr = (grub_ieee1275_cell_t)&vector;
- 
--  grub_printf("Calling ibm,client-architecture-support...");
-+  grub_printf("Calling ibm,client-architecture-support from grub...");
-   IEEE1275_CALL_ENTRY_FN (&args);
-   grub_printf("done\n");
- 

0254-modules-load-module-sections-at-page-aligned-address.patch

@@ -360,7 +360,7 @@ index 618ae6f474..f36ed5cb17 100644
  
  #if defined (_mips)
 diff --git a/docs/grub-dev.texi b/docs/grub-dev.texi
-index 90083772c8..c23ba313dc 100644
+index 19f708ee66..7b2455a8fe 100644
 --- a/docs/grub-dev.texi
 +++ b/docs/grub-dev.texi
 @@ -755,9 +755,9 @@ declare startup asm file ($cpu_$platform_startup) as well as any other files