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authorSimon Glass <sjg@chromium.org>2020-11-04 09:57:25 -0700
committerBin Meng <bmeng.cn@gmail.com>2020-11-06 09:51:28 +0800
commitd2cb7a22da0fec2b67b356e9fb58247cdff8c95e (patch)
tree5505469cac342c9877b06fdeb104e6a6792a6dda /lib
parentf36e4c7d8059a3bb03bb172bf87ebefd7a95bd56 (diff)
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x86: Allow putting some tables in the bloblist
At present all tables are placed starting at address f0000 in memory, and can be up to 64KB in size. If the tables are very large, this may not provide enough space. Also if the tables point to other tables (such as console log or a ramoops area) then we must allocate other memory anyway. The bloblist is a nice place to put these tables since it is contiguous, which makes it easy to reserve this memory for linux using the 820 tables. Add an option to put some of the tables in the bloblist. For SMBIOS and ACPI, create suitable pointers from the f0000 region to the new location of the tables. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/ 20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig9
-rw-r--r--lib/acpi/acpi_table.c4
2 files changed, 11 insertions, 2 deletions
diff --git a/lib/Kconfig b/lib/Kconfig
index 5f1b95d..8f48753 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -637,6 +637,15 @@ config FDT_FIXUP_PARTITIONS
menu "System tables"
depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
+config BLOBLIST_TABLES
+ bool "Put tables in a bloblist"
+ depends on X86
+ help
+ Normally tables are placed at address 0xf0000 and can be up to 64KB
+ long. With this option, tables are instead placed in the bloblist
+ with a pointer from 0xf0000. The size can then be larger and the
+ tables can be placed high in memory.
+
config GENERATE_SMBIOS_TABLE
bool "Generate an SMBIOS (System Management BIOS) table"
default y
diff --git a/lib/acpi/acpi_table.c b/lib/acpi/acpi_table.c
index 908d890..a0f0961b 100644
--- a/lib/acpi/acpi_table.c
+++ b/lib/acpi/acpi_table.c
@@ -183,8 +183,8 @@ int acpi_add_table(struct acpi_ctx *ctx, void *table)
return 0;
}
-static void acpi_write_rsdp(struct acpi_rsdp *rsdp, struct acpi_rsdt *rsdt,
- struct acpi_xsdt *xsdt)
+void acpi_write_rsdp(struct acpi_rsdp *rsdp, struct acpi_rsdt *rsdt,
+ struct acpi_xsdt *xsdt)
{
memset(rsdp, 0, sizeof(struct acpi_rsdp));