Messages in this thread | | | Subject | Re: [PATCH 1/2] x86: Make E820_X_MAX unconditionally larger than E820MAX | From | Juergen Gross <> | Date | Fri, 9 Dec 2016 11:12:37 +0100 |
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On 05/12/16 18:49, Alex Thorlton wrote: > It's really not necessary to limit E820_X_MAX to 128 in the non-EFI > case. This commit drops E820_X_MAX's dependency on CONFIG_EFI, so that > E820_X_MAX is always at least slightly larger than E820MAX. > > The real motivation behind this is actually to prevent some issues in > the Xen kernel, where the XENMEM_machine_memory_map hypercall can > produce an e820 map larger than 128 entries, even on systems where the > original e820 table was quite a bit smaller than that, depending on how > many IOAPICs are installed on the system. > > Signed-off-by: Alex Thorlton <athorlton@sgi.com> > Suggested-by: Ingo Molnar <mingo@redhat.com>
Commited to xen/tip.git for-linus-4.10
Juergen
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