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authorLinus Torvalds <torvalds@linux-foundation.org>2018-10-23 17:31:33 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-23 17:31:33 +0200
commitac73e08eda885a6723593c45d634b59c63365986 (patch)
tree9af27579a277c00813e369cdec053e4a49b7aad5 /arch/x86/boot
parentMerge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... (diff)
parentx86/acpi, x86/boot: Take RSDP address for boot params if available (diff)
downloadlinux-ac73e08eda885a6723593c45d634b59c63365986.tar.xz
linux-ac73e08eda885a6723593c45d634b59c63365986.zip
Merge branch 'x86-grub2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 grub2 updates from Ingo Molnar: "This extends the x86 boot protocol to include an address for the RSDP table - utilized by Xen currently. Matching Grub2 patches are pending as well. (Juergen Gross)" * 'x86-grub2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/acpi, x86/boot: Take RSDP address for boot params if available x86/boot: Add ACPI RSDP address to setup_header x86/xen: Fix boot loader version reported for PVH guests
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/header.S6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 850b8762e889..4c881c850125 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -300,7 +300,7 @@ _start:
# Part 2 of the header, from the old setup.S
.ascii "HdrS" # header signature
- .word 0x020d # header version number (>= 0x0105)
+ .word 0x020e # header version number (>= 0x0105)
# or else old loadlin-1.5 will fail)
.globl realmode_swtch
realmode_swtch: .word 0, 0 # default_switch, SETUPSEG
@@ -558,6 +558,10 @@ pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
init_size: .long INIT_SIZE # kernel initialization size
handover_offset: .long 0 # Filled in by build.c
+acpi_rsdp_addr: .quad 0 # 64-bit physical pointer to the
+ # ACPI RSDP table, added with
+ # version 2.14
+
# End of setup header #####################################################
.section ".entrytext", "ax"