From d58d45ff1f1be086355d9bdb18d7857f4429e82c Mon Sep 17 00:00:00 2001
From: James <james.mckenzie@citrix.com>
Date: Sat, 17 Nov 2012 02:57:07 +0000
Subject: fish

---
 master/jmm/copy-acpi-and-dmi-for-mb-kernels | 121 ++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 master/jmm/copy-acpi-and-dmi-for-mb-kernels

(limited to 'master/jmm/copy-acpi-and-dmi-for-mb-kernels')

diff --git a/master/jmm/copy-acpi-and-dmi-for-mb-kernels b/master/jmm/copy-acpi-and-dmi-for-mb-kernels
new file mode 100644
index 0000000..0b11871
--- /dev/null
+++ b/master/jmm/copy-acpi-and-dmi-for-mb-kernels
@@ -0,0 +1,121 @@
+diff --git a/grub-core/loader/i386/linux.c b/grub-core/loader/i386/linux.c
+index 85ae791..fec513f 100644
+--- a/grub-core/loader/i386/linux.c
++++ b/grub-core/loader/i386/linux.c
+@@ -407,6 +407,94 @@ grub_linux_setup_video (struct linux_kernel_params *params)
+   return GRUB_ERR_NONE;
+ }
+ 
++#ifdef GRUB_MACHINE_EFI
++static grub_efi_guid_t acpi_guid = GRUB_EFI_ACPI_TABLE_GUID;
++static grub_efi_guid_t acpi2_guid = GRUB_EFI_ACPI_20_TABLE_GUID;
++static grub_efi_guid_t smbios_guid = GRUB_EFI_SMBIOS_TABLE_GUID;
++
++#define EBDA_SEG_ADDR   0x40e
++#define LOW_MEM_ADDR    0x413
++#define FAKE_EBDA_SEG   0x7000
++#define FAKE_SMBIOS_SEG   0x8000
++
++static void
++inject_bios_acpi (void)
++{
++  unsigned i;
++  void *acpi;
++  grub_uint16_t *ebda_seg_ptr, *low_mem_ptr;
++
++  acpi = 0;
++  for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
++    {
++      grub_efi_guid_t *guid =
++        &grub_efi_system_table->configuration_table[i].vendor_guid;
++
++      if (!grub_memcmp (guid, &acpi2_guid, sizeof (grub_efi_guid_t)))
++        {
++          acpi = grub_efi_system_table->configuration_table[i].vendor_table;
++          grub_printf ("ACPI2: %p\n", acpi);
++        }
++      else if (!grub_memcmp (guid, &acpi_guid, sizeof (grub_efi_guid_t)))
++        {
++          void *t;
++
++          t = grub_efi_system_table->configuration_table[i].vendor_table;
++          if (!acpi)
++            acpi = t;
++          grub_printf ("ACPI: %p\n", t);
++        }
++    }
++
++  if (acpi == 0)
++    return;
++
++  ebda_seg_ptr = (grub_uint16_t *) EBDA_SEG_ADDR;
++  low_mem_ptr = (grub_uint16_t *) LOW_MEM_ADDR;
++
++  *ebda_seg_ptr = FAKE_EBDA_SEG;
++  *low_mem_ptr = FAKE_EBDA_SEG >> 6;
++
++  grub_printf("Copying acpi %p to %x\n",acpi,(int)  (FAKE_EBDA_SEG << 4));
++  grub_memcpy ((char *) (FAKE_EBDA_SEG << 4), acpi, 0x10000);
++
++}
++
++static void
++inject_bios_smbios(void)
++{
++  unsigned i;
++  void *smbios;
++
++  smbios = 0;
++  for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
++    {
++      grub_efi_guid_t *guid =
++        &grub_efi_system_table->configuration_table[i].vendor_guid;
++
++      if (!grub_memcmp (guid, &smbios_guid, sizeof (grub_efi_guid_t)))
++        {
++          smbios = grub_efi_system_table->configuration_table[i].vendor_table;
++          grub_printf ("SMBIOS: %p\n", smbios);
++        }
++    }
++
++  if (smbios == 0)
++    return;
++
++  grub_printf("Copying smbios %p to %x\n",smbios,(int)  (FAKE_SMBIOS_SEG << 4));
++  grub_memcpy ((char *) (FAKE_SMBIOS_SEG << 4), smbios, 0x10000);
++}
++
++
++static void fake_bios_data(void)
++{
++  inject_bios_smbios();
++  inject_bios_acpi();
++}
++
++#endif
++
+ static grub_err_t
+ grub_linux_boot (void)
+ {
+@@ -471,6 +559,10 @@ grub_linux_boot (void)
+ 
+   e820_num = 0;
+   grub_mmap_iterate (hook);
++#ifdef GRUB_MACHINE_EFI
++  grub_e820_add_region (params->e820_map, &e820_num,
++                           0x70000, 0x20000, GRUB_E820_RESERVED);
++#endif
+   params->mmap_size = e820_num;
+ 
+   modevar = grub_env_get ("gfxpayload");
+@@ -547,6 +639,10 @@ grub_linux_boot (void)
+ #endif
+ 
+ #ifdef GRUB_MACHINE_EFI
++  fake_bios_data();
++#endif
++
++#ifdef GRUB_MACHINE_EFI
+   {
+     grub_efi_uintn_t efi_desc_size;
+     grub_size_t efi_mmap_target;
-- 
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