[PATCH RESEND kvmtool 0/4] arm: Payload memory layout change

[Will Deacon]

On Thu, 28 Nov 2024 15:12:42 +0000, Alexandru Elisei wrote:
> (resending because I accidently only sent the cover letter, sorry for that)
> 
> The first 3 patches are fixes to kvm__arch_load_kernel_image(). I've CC'ed
> the riscv maintainer because it looks to me like riscv is similarly
> affected.
> 
> Patch #4 ("arm64: Increase the payload memory region size to 512MB") might
> be controversial. Follows a bug report I received from Abdollahi Sina in
> private. Details in the commit message, but the gist of the patch is that
> the memory region where kernel + initrd + DTB are copied to are changed
> from 256MB to 512MB.  As a result, the DTB and initrd are moved from below
> ram_start + 256MB to ram_start + 512MB to accomodate a larger initrd.  If
> users rely on finding the DTB and initrd at the current addresses, then I'm
> not sure the patch is justified - after all, if someone really wants to use
> such a large initrd instead of a disk image with virtio, then replacing
> SZ_256M with SZ_512M locally doesn't look like a big ask.
> 
> [...]

Applied to arm64 (sina), thanks!

[1/4] arm: Fix off-by-one errors when computing payload memory layout
      https://git.kernel.org/arm64/c/167aa1e
[2/4] arm: Check return value for host_to_guest_flat()
      https://git.kernel.org/arm64/c/ca57fb6
[3/4] arm64: Use the kernel header image_size when loading into memory
      https://git.kernel.org/arm64/c/32345de
[4/4] arm64: Increase the payload memory region size to 512MB
      https://git.kernel.org/arm64/c/9b26a8e

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev