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linux-stable/arch/x86/boot
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Joerg Roedel b9cb9c4558 x86/sev: Check IOBM for IOIO exceptions from user-space 
Check the IO permission bitmap (if present) before emulating IOIO #VC
exceptions for user-space. These permissions are checked by hardware
already before the #VC is raised, but due to the VC-handler decoding
race it needs to be checked again in software.

Fixes: 25189d08e5 ("x86/sev-es: Add support for handling IOIO exceptions")
Reported-by: Tom Dohrmann <erbse.13@gmx.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Tom Dohrmann <erbse.13@gmx.de>
Cc: <stable@kernel.org>
2023-10-09 15:47:57 +02:00
..
compressed x86/sev: Check IOBM for IOIO exceptions from user-space 2023-10-09 15:47:57 +02:00
tools x86/efi: Make the deprecated EFI handover protocol optional 2022-11-24 08:57:41 +01:00
.gitignore x86/boot: Modernize genimage script; hdimage+EFI support 2021-05-10 12:27:50 +02:00
a20.c
apm.c x86/boot: Fix comment spelling 2020-03-17 20:52:52 +01:00
bioscall.S x86/boot: Avoid using Intel mnemonics in AT&T syntax asm 2023-01-10 13:03:23 +01:00
bitops.h x86/boot: Remove superfluous type casting from arch/x86/boot/bitops.h 2022-08-15 19:17:43 +02:00
boot.h - Add a "make x86_debug.config" target which enables a bunch of useful 2022-05-23 18:15:44 -07:00
cmdline.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
copy.S
cpu.c x86/cpu: Remove X86_FEATURE_NAMES 2023-05-15 20:03:08 +02:00
cpucheck.c x86/boot: Use MSR read/write helpers instead of inline assembly 2022-04-06 13:02:13 +02:00
cpuflags.c x86/boot: Remove x86_32 PIC using %ebx workaround 2022-11-29 16:26:53 +01:00
cpuflags.h x86/tdx: Detect TDX at early kernel decompression time 2022-04-07 08:27:51 -07:00
ctype.h
early_serial_console.c
edd.c
genimage.sh x86/boot: Fix make hdimage with older versions of mtools 2021-09-29 11:06:47 +02:00
header.S docs: move x86 documentation into Documentation/arch/ 2023-03-30 12:58:51 -06:00
install.sh kbuild: factor out the common installation code into scripts/install.sh 2022-05-11 21:45:53 +09:00
io.h x86/boot: Port I/O: Allow to hook up alternative helpers 2022-04-07 08:27:52 -07:00
main.c - Add a "make x86_debug.config" target which enables a bunch of useful 2022-05-23 18:15:44 -07:00
Makefile x86/cpu: Remove X86_FEATURE_NAMES 2023-05-15 20:03:08 +02:00
memory.c
mkcpustr.c x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_* 2020-01-13 18:36:02 +01:00
msr.h x86/boot: Introduce helpers for MSR reads/writes 2022-04-06 12:59:17 +02:00
mtools.conf.in x86/boot: Fix make hdimage with older versions of mtools 2021-09-29 11:06:47 +02:00
pm.c
pmjump.S
printf.c
regs.c
setup.ld x86/boot: Add .text.* to setup.ld 2020-08-14 12:52:35 +02:00
string.c x86/boot: Repair kernel-doc for boot_kstrtoul() 2022-11-02 10:20:02 +01:00
string.h x86/boot/string: Add missing function prototypes 2021-12-10 19:49:06 +01:00
tty.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
version.c kbuild: build init/built-in.a just once 2022-09-29 04:40:15 +09:00
vesa.h
video-bios.c
video-mode.c
video-vesa.c sysfb: Enable boot time VESA graphic mode selection 2022-03-04 20:55:33 +01:00
video-vga.c
video.c
video.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00