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This is useful on !virt platforms for kexec, so change things from
BI_VIRT_RNG_SEED to be BI_RNG_SEED, and simply remove BI_VIRT_RNG_SEED
because it only ever lasted one release, and nothing is broken by not
having it. At the same time, keep a comment noting that it's been
removed, so that ID isn't reused. In addition, we previously documented
2-byte alignment, but 4-byte alignment is actually necessary, so update
that comment.
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Fixes: a1ee38ab1a75 ("m68k: virt: Use RNG seed from bootinfo block")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20220927130835.1629806-2-Jason@zx2c4.com
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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Other virt VMs can pass RNG seeds via the "rng-seed" device tree
property or via UEFI, but m68k doesn't have either. Instead it has its
own bootinfo protocol. So this commit adds support for receiving a RNG
seed from it, which will be used at the earliest possible time in boot,
just like device tree.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20220626111509.330159-1-Jason@zx2c4.com
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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On m68k with CONFIG_VIRT=y (e.g. virt_defconfig or allmodconfig):
arch/m68k/virt/config.c: In function ‘config_virt’:
arch/m68k/virt/config.c:129:2: error: ‘mach_power_off’ undeclared (first use in this function); did you mean ‘pm_power_off’?
129 | mach_power_off = virt_halt;
| ^~~~~~~~~~~~~~
| pm_power_off
Commit 05d51e42df06f021 ("m68k: Introduce a virtual m68k machine")
introduced a new user of mach_power_off.
Convert it to the new sys-off handler API, too.
Reported-by: noreply@ellerman.id.au
Fixes: f0f7e5265b3b37b0 ("m68k: Switch to new sys-off handler API")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This machine allows to have up to 3.2 GiB and 128 Virtio devices.
It is based on android goldfish devices.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Link: https://lore.kernel.org/r/20220406201523.243733-5-laurent@vivier.eu
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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