diff options
| author | Joerg Roedel <jroedel@suse.de> | 2020-09-07 16:15:14 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-09-07 20:45:25 +0300 |
| commit | 64e682638eb51070ba6044535b250aad43c5564e (patch) | |
| tree | 9be00d00917c598ab9e3b8cc1534aa913ae9fd1f /arch/x86/boot/compressed/misc.h | |
| parent | 6ba0efa46047936afa81460489cfd24bc95dd863 (diff) | |
| download | linux-64e682638eb51070ba6044535b250aad43c5564e.tar.xz | |
x86/boot/compressed/64: Add IDT Infrastructure
Add code needed to setup an IDT in the early pre-decompression
boot-code. The IDT is loaded first in startup_64, which is after
EfiExitBootServices() has been called, and later reloaded when the
kernel image has been relocated to the end of the decompression area.
This allows to setup different IDT handlers before and after the
relocation.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200907131613.12703-14-joro@8bytes.org
Diffstat (limited to 'arch/x86/boot/compressed/misc.h')
| -rw-r--r-- | arch/x86/boot/compressed/misc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index 3efce27ba35c..8feb5f6f329e 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -23,6 +23,7 @@ #include <asm/page.h> #include <asm/boot.h> #include <asm/bootparam.h> +#include <asm/desc_defs.h> #define BOOT_CTYPE_H #include <linux/acpi.h> @@ -133,4 +134,8 @@ int count_immovable_mem_regions(void); static inline int count_immovable_mem_regions(void) { return 0; } #endif +/* idt_64.c */ +extern gate_desc boot_idt[BOOT_IDT_ENTRIES]; +extern struct desc_ptr boot_idt_desc; + #endif /* BOOT_COMPRESSED_MISC_H */ |