x86, setup: "glove box" BIOS interrupts
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- v1 Latest0 of 6 patches 36 repliesIn review
Patches in v1 No applies recorded yet
None of the 6 patches the cover letter announces are in this archive.
Reviews trailers per patch
| Patch | Pavel Machek |
|---|---|
| Series | A-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH 0/6] x86, setup: "glove box" BIOS interrupts
This is a patchset to "glove box" off BIOS interrupts in the x86 setup code, thus hopefully dealing once and for all with the problems of BIOSes touching registers they shouldn't.
The concept is simple: we manipulate a register image in memory, then swap it in immediately before calling the BIOS, and then switch the register file back. All BIOS interrupts are channeled through this path.
The increase in size is about 8% or ~1.3K in the maximal case.
arch/x86/boot/Makefile | 5 +- arch/x86/boot/a20.c | 9 +- arch/x86/boot/apm.c | 76 +++++-------- arch/x86/boot/bioscall.S | 82 +++++++++++++ arch/x86/boot/boot.h | 48 ++++++++ arch/x86/boot/edd.c | 71 +++++------- arch/x86/boot/header.S | 2 +- arch/x86/boot/main.c | 39 ++++--- arch/x86/boot/mca.c | 27 ++--- arch/x86/boot/memory.c | 81 +++++++------- arch/x86/boot/regs.c | 29 +++++ arch/x86/boot/setup.ld | 6 + arch/x86/boot/tty.c | 52 +++++---- arch/x86/boot/video-bios.c | 27 ++--- arch/x86/boot/video-vesa.c | 137 ++++++++++------------ arch/x86/boot/video-vga.c | 95 +++++++++------ arch/x86/boot/video.c | 42 +++---- arch/x86/boot/video.h | 14 --- arch/x86/kernel/acpi/realmode/Makefile | 2 +- arch/x86/kernel/acpi/realmode/bioscall.S | 1 + arch/x86/kernel/acpi/realmode/regs.c | 1 + 21 files changed, 490 insertions(+), 356 deletions(-)