diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-02-15 13:33:33 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-02-16 15:02:03 +0100 |
| commit | 582a32e708823e5957fd73ccd78dc4a9e49d21ea (patch) | |
| tree | 313ebeb73e03401253bc62581280cd4327f895b1 | |
| parent | 8a5b403d71affa098009cc3dff1b2c45113021ad (diff) | |
| download | linux-582a32e708823e5957fd73ccd78dc4a9e49d21ea.tar.gz | |
efi/arm: Revert "Defer persistent reservations until after paging_init()"
This reverts commit eff896288872d687d9662000ec9ae11b6d61766f, which
deferred the processing of persistent memory reservations to a point
where the memory may have already been allocated and overwritten,
defeating the purpose.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20190215123333.21209-3-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/arm64/kernel/setup.c | 1 | ||||
| -rw-r--r-- | drivers/firmware/efi/efi.c | 4 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/arm-stub.c | 3 | ||||
| -rw-r--r-- | include/linux/efi.h | 7 |
4 files changed, 0 insertions, 15 deletions
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 4b0e1231625c..d09ec76f08cf 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -313,7 +313,6 @@ void __init setup_arch(char **cmdline_p) arm64_memblock_init(); paging_init(); - efi_apply_persistent_mem_reservations(); acpi_table_upgrade(); diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index 4c46ff6f2242..55b77c576c42 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -592,11 +592,7 @@ int __init efi_config_parse_tables(void *config_tables, int count, int sz, early_memunmap(tbl, sizeof(*tbl)); } - return 0; -} -int __init efi_apply_persistent_mem_reservations(void) -{ if (efi.mem_reserve != EFI_INVALID_TABLE_ADDR) { unsigned long prsv = efi.mem_reserve; diff --git a/drivers/firmware/efi/libstub/arm-stub.c b/drivers/firmware/efi/libstub/arm-stub.c index eee42d5e25ee..c037c6c5d0b7 100644 --- a/drivers/firmware/efi/libstub/arm-stub.c +++ b/drivers/firmware/efi/libstub/arm-stub.c @@ -75,9 +75,6 @@ void install_memreserve_table(efi_system_table_t *sys_table_arg) efi_guid_t memreserve_table_guid = LINUX_EFI_MEMRESERVE_TABLE_GUID; efi_status_t status; - if (IS_ENABLED(CONFIG_ARM)) - return; - status = efi_call_early(allocate_pool, EFI_LOADER_DATA, sizeof(*rsv), (void **)&rsv); if (status != EFI_SUCCESS) { diff --git a/include/linux/efi.h b/include/linux/efi.h index 45ff763fba76..28604a8d0aa9 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -1198,8 +1198,6 @@ static inline bool efi_enabled(int feature) extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); extern bool efi_is_table_address(unsigned long phys_addr); - -extern int efi_apply_persistent_mem_reservations(void); #else static inline bool efi_enabled(int feature) { @@ -1218,11 +1216,6 @@ static inline bool efi_is_table_address(unsigned long phys_addr) { return false; } - -static inline int efi_apply_persistent_mem_reservations(void) -{ - return 0; -} #endif extern int efi_status_to_err(efi_status_t status); |