Searched hist:de8c5520 (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/drivers/firmware/efi/libstub/ |
H A D | efistub.h | de8c5520 Mon May 04 10:02:48 CDT 2020 Arvind Sankar <nivedita@alum.mit.edu> efi/libstub: Fix mixed mode boot issue after macro refactor
Commit
22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86")
refactored the macros that are used to provide wrappers for mixed-mode calls on x86, allowing us to boot a 64-bit kernel on 32-bit firmware.
Unfortunately, this broke mixed mode boot due to the fact that efi_is_native() is not a macro on x86.
All of these macros should go together, so rather than testing each one to see if it is defined, condition the generic macro definitions on a new ARCH_HAS_EFISTUB_WRAPPERS, and remove the wrapper definitions on x86 as well if CONFIG_EFI_MIXED is not enabled.
Fixes: 22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Link: https://lore.kernel.org/r/20200504150248.62482-1-nivedita@alum.mit.edu Signed-off-by: Ard Biesheuvel <ardb@kernel.org> de8c5520 Mon May 04 10:02:48 CDT 2020 Arvind Sankar <nivedita@alum.mit.edu> efi/libstub: Fix mixed mode boot issue after macro refactor Commit 22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86") refactored the macros that are used to provide wrappers for mixed-mode calls on x86, allowing us to boot a 64-bit kernel on 32-bit firmware. Unfortunately, this broke mixed mode boot due to the fact that efi_is_native() is not a macro on x86. All of these macros should go together, so rather than testing each one to see if it is defined, condition the generic macro definitions on a new ARCH_HAS_EFISTUB_WRAPPERS, and remove the wrapper definitions on x86 as well if CONFIG_EFI_MIXED is not enabled. Fixes: 22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Link: https://lore.kernel.org/r/20200504150248.62482-1-nivedita@alum.mit.edu Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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/openbmc/linux/arch/x86/include/asm/ |
H A D | efi.h | de8c5520 Mon May 04 10:02:48 CDT 2020 Arvind Sankar <nivedita@alum.mit.edu> efi/libstub: Fix mixed mode boot issue after macro refactor
Commit
22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86")
refactored the macros that are used to provide wrappers for mixed-mode calls on x86, allowing us to boot a 64-bit kernel on 32-bit firmware.
Unfortunately, this broke mixed mode boot due to the fact that efi_is_native() is not a macro on x86.
All of these macros should go together, so rather than testing each one to see if it is defined, condition the generic macro definitions on a new ARCH_HAS_EFISTUB_WRAPPERS, and remove the wrapper definitions on x86 as well if CONFIG_EFI_MIXED is not enabled.
Fixes: 22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Link: https://lore.kernel.org/r/20200504150248.62482-1-nivedita@alum.mit.edu Signed-off-by: Ard Biesheuvel <ardb@kernel.org> de8c5520 Mon May 04 10:02:48 CDT 2020 Arvind Sankar <nivedita@alum.mit.edu> efi/libstub: Fix mixed mode boot issue after macro refactor Commit 22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86") refactored the macros that are used to provide wrappers for mixed-mode calls on x86, allowing us to boot a 64-bit kernel on 32-bit firmware. Unfortunately, this broke mixed mode boot due to the fact that efi_is_native() is not a macro on x86. All of these macros should go together, so rather than testing each one to see if it is defined, condition the generic macro definitions on a new ARCH_HAS_EFISTUB_WRAPPERS, and remove the wrapper definitions on x86 as well if CONFIG_EFI_MIXED is not enabled. Fixes: 22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Link: https://lore.kernel.org/r/20200504150248.62482-1-nivedita@alum.mit.edu Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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