On Fri, Nov 18, 2022 at 10:21:10AM -0800, Breno Leitao wrote:
Currently x86_spec_ctrl_base is read at boot time, and SPEC_CTRL_IBRS
bit is set if CONFIG_CPU_IBRS_ENTRY is enabled. There is no change in
the bit if CONFIG_CPU_IBRS_ENTRY is not set.
This is a problem when kexec-ing a kernel that
On Wed, 16 Nov 2022 20:10:42 +0800, Zhen Lei wrote:
> v3 --> v4:
> 1. Set DEFAULT_CRASH_KERNEL_LOW_SIZE to a fixed 128M.
> 2. Some lightweight code adjustments based on Catalin Marinas's comments
>
> v2 --> v3:
> 1. Discard patch 3 in v2, a cleanup patch.
>
> [...]
Applied to arm64
Currently x86_spec_ctrl_base is read at boot time, and SPEC_CTRL_IBRS
bit is set if CONFIG_CPU_IBRS_ENTRY is enabled. There is no change in
the bit if CONFIG_CPU_IBRS_ENTRY is not set.
This is a problem when kexec-ing a kernel that has the mitigation
disabled, from a kernel that has the
On Mon, Nov 14, 2022 at 04:43:03PM +0100, Jason A. Donenfeld wrote:
> In order to pass fresh entropy to kexec'd kernels, use BI_RNG_SEED
> for passing a seed, with the same semantics that kexec-tools currently
> uses for i386's setup_data.
>
> Link:
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