[PATCH v3 10/20] kvm: arm64: Dynamic configuration of VTTBR mask
From: suzuki.poulose@arm.com (Suzuki K Poulose)
Date: 2018-07-04 08:28:54
Also in:
kvm, kvmarm, lkml, qemu-devel
On 07/04/2018 09:24 AM, Auger Eric wrote:
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+ * + * We have a magic formula for the Magic_N below. + * + * Magic_N(PAGE_SIZE, Entry_Level) = 64 - ((PAGE_SHIFT - 3) * Number of levels)[0] ^^^quoted
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+ * + * where number of levels = (4 - Entry_Level).^^^ Doesn't this help make it clear ? Using the expansion makes it a bit more unreadable below.I just wanted to mention the tables you refer (D4-23 and D4-25) give Magic_N for a larger scope as they deal with any lookup level while we only care about the entry level for BADDR. So I was a little bit confused when reading the explanation but that's not a big deal.
Ah, ok. I will try to clarify it. Cheers Suzuki