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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-23 16:31:33 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-23 16:31:33 +0100 |
| commit | ac73e08eda885a6723593c45d634b59c63365986 (patch) | |
| tree | 9af27579a277c00813e369cdec053e4a49b7aad5 /arch/x86/include | |
| parent | fec98069fb72fb656304a3e52265e0c2fc9adf87 (diff) | |
| parent | e7b66d16fe41722350ba87f5788052ef53ee28bb (diff) | |
| download | linux-ac73e08eda885a6723593c45d634b59c63365986.tar.bz2 | |
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/include')
| -rw-r--r-- | arch/x86/include/asm/acpi.h | 7 | ||||
| -rw-r--r-- | arch/x86/include/asm/x86_init.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/uapi/asm/bootparam.h | 4 |
3 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index a303d7b7d763..2f01eb4d6208 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -142,6 +142,8 @@ static inline u64 acpi_arch_get_root_pointer(void) void acpi_generic_reduced_hw_init(void); +u64 x86_default_get_root_pointer(void); + #else /* !CONFIG_ACPI */ #define acpi_lapic 0 @@ -153,6 +155,11 @@ static inline void disable_acpi(void) { } static inline void acpi_generic_reduced_hw_init(void) { } +static inline u64 x86_default_get_root_pointer(void) +{ + return 0; +} + #endif /* !CONFIG_ACPI */ #define ARCH_HAS_POWER_INIT 1 diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index b85a7c54c6a1..0f842104862c 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -303,4 +303,6 @@ extern void x86_init_noop(void); extern void x86_init_uint_noop(unsigned int unused); extern bool x86_pnpbios_disabled(void); +void x86_verify_bootdata_version(void); + #endif diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h index a06cbf019744..22f89d040ddd 100644 --- a/arch/x86/include/uapi/asm/bootparam.h +++ b/arch/x86/include/uapi/asm/bootparam.h @@ -16,6 +16,9 @@ #define RAMDISK_PROMPT_FLAG 0x8000 #define RAMDISK_LOAD_FLAG 0x4000 +/* version flags */ +#define VERSION_WRITTEN 0x8000 + /* loadflags */ #define LOADED_HIGH (1<<0) #define KASLR_FLAG (1<<1) @@ -86,6 +89,7 @@ struct setup_header { __u64 pref_address; __u32 init_size; __u32 handover_offset; + __u64 acpi_rsdp_addr; } __attribute__((packed)); struct sys_desc_table { |