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Joerg Roedel 5b118b5b1d UPSTREAM: x86/sev: Check IOBM for IOIO exceptions from user-space

Upstream commit: b9cb9c4558

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.

Bug: 309733863
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 5bb9ba7dafbe18e027e335f74372ca65f07f7edd)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I559d1ee6aa0793f7bfd7b5e603cdaba2336d0562

2023-12-21 13:08:52 +00:00

alpha

Merge 5.10.191 into android12-5.10-lts

2023-08-28 16:37:52 +00:00

arc

ARC: define ASM_NL and __ALIGN(_STR) outside #ifdef __ASSEMBLY__ guard

2023-07-27 08:44:00 +02:00

arm

Merge tag 'android12-5.10.198_r00' into android12-5.10

2023-10-31 10:18:41 +00:00

arm64

Merge tag 'android12-5.10.198_r00' into android12-5.10