wireguard-linux/arch/arm64/kernel/machine_kexec_file.c, branch jd/unified-crypt-queue

arm64: kexec_file: Fixed code style.

2020-03-17T18:23:20Z

Remove unnecessary blank. Signed-off-by: Li Tao Signed-off-by: Catalin Marinas

arm64: kexec_file: add crash dump support

2020-01-08T17:05:23Z

Enabling crash dump (kdump) includes * prepare contents of ELF header of a core dump file, /proc/vmcore, using crash_prepare_elf64_headers(), and * add two device tree properties, "linux,usable-memory-range" and "linux,elfcorehdr", which represent respectively a memory range to be used by crash dump kernel and the header's location Signed-off-by: AKASHI Takahiro Cc: Catalin Marinas Cc: Will Deacon Reviewed-by: James Morse Tested-and-reviewed-by: Bhupesh Sharma Signed-off-by: Will Deacon

Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', 'for-next/error-injection', 'for-next/perf', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core

2019-08-30T11:46:12Z

* for-next/52-bit-kva: (25 commits) Support for 52-bit virtual addressing in kernel space * for-next/cpu-topology: (9 commits) Move CPU topology parsing into core code and add support for ACPI 6.3 * for-next/error-injection: (2 commits) Support for function error injection via kprobes * for-next/perf: (8 commits) Support for i.MX8 DDR PMU and proper SMMUv3 group validation * for-next/psci-cpuidle: (7 commits) Move PSCI idle code into a new CPUidle driver * for-next/rng: (4 commits) Support for 'rng-seed' property being passed in the devicetree * for-next/smpboot: (3 commits) Reduce fragility of secondary CPU bringup in debug configurations * for-next/tbi: (10 commits) Introduce new syscall ABI with relaxed requirements for pointer tags * for-next/tlbi: (6 commits) Handle spurious page faults arising from kernel space

arm64: kexec_file: add rng-seed support

2019-08-23T15:40:14Z

Adding "rng-seed" to dtb. It's fine to add this property if original fdt doesn't contain it. Since original seed will be wiped after read, so use a default size 128 bytes here. Signed-off-by: Hsin-Yi Wang Reviewed-by: Stephen Boyd Signed-off-by: Will Deacon

arm64/kexec: Use consistent convention of initializing 'kxec_buf.mem' with KEXEC_BUF_MEM_UNKNOWN

2019-08-05T10:06:33Z

With commit b6664ba42f14 ("s390, kexec_file: drop arch_kexec_mem_walk()"), we introduced the KEXEC_BUF_MEM_UNKNOWN macro. If kexec_buf.mem is set to this value, kexec_locate_mem_hole() will try to allocate free memory. While other arch(s) like s390 and x86_64 already use this macro to initialize kexec_buf.mem with, arm64 uses an equivalent value of 0. Replace it with KEXEC_BUF_MEM_UNKNOWN, to keep the convention of initializing 'kxec_buf.mem' consistent across various archs. Cc: takahiro.akashi@linaro.org Cc: james.morse@arm.com Reviewed-by: Matthias Brugger Signed-off-by: Bhupesh Sharma Signed-off-by: Will Deacon

arm64: kexec_file: handle empty command-line

2019-02-05T09:34:49Z

Calling strlen() on cmdline == NULL produces a kernel oops. Since having a NULL cmdline is valid, handle this case explicitly. Fixes: 52b2a8af7436 ("arm64: kexec_file: load initrd and device-tree") Signed-off-by: Jean-Philippe Brucker Signed-off-by: Will Deacon

arm64: kexec_file: return successfully even if kaslr-seed doesn't exist

2019-01-11T10:10:51Z

In kexec_file_load, kaslr-seed property of the current dtb will be deleted any way before setting a new value if possible. It doesn't matter whether it exists in the current dtb. So "ret" should be reset to 0 here. Fixes: commit 884143f60c89 ("arm64: kexec_file: add kaslr support") Signed-off-by: AKASHI Takahiro Signed-off-by: Will Deacon

arm64: kexec_file: include linux/vmalloc.h

2018-12-11T10:37:38Z

This is needed for compilation in some configurations that don't include it implicitly: arch/arm64/kernel/machine_kexec_file.c: In function 'arch_kimage_file_post_load_cleanup': arch/arm64/kernel/machine_kexec_file.c:37:2: error: implicit declaration of function 'vfree'; did you mean 'kvfree'? [-Werror=implicit-function-declaration] Fixes: 52b2a8af7436 ("arm64: kexec_file: load initrd and device-tree") Signed-off-by: Arnd Bergmann Signed-off-by: Will Deacon

arm64: kexec_file: Refactor setup_dtb() to consolidate error checking

2018-12-06T15:16:58Z

setup_dtb() is a little difficult to read. This is largely because it duplicates the FDT -> Linux errno conversion for every intermediate return value, but also because of silly cosmetic things like naming and formatting. Given that this is all brand new, refactor the function to get us off on the right foot. Signed-off-by: Will Deacon

arm64: kexec_file: add kaslr support

2018-12-06T15:16:57Z

Adding "kaslr-seed" to dtb enables triggering kaslr, or kernel virtual address randomization, at secondary kernel boot. We always do this as it will have no harm on kaslr-incapable kernel. We don't have any "switch" to turn off this feature directly, but still can suppress it by passing "nokaslr" as a kernel boot argument. Signed-off-by: AKASHI Takahiro Cc: Catalin Marinas Cc: Will Deacon [will: Use rng_is_initialized()] Signed-off-by: Will Deacon