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KVM: PPC: Book3S HV: Don't store values derivable from HPT order

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Currently the kvm_hpt_info structure stores the hashed page table's order,
and also the number of HPTEs it contains and a mask for its size.  The
last two can be easily derived from the order, so remove them and just
calculate them as necessary with a couple of helper inlines.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
David Gibson
2016-12-20 16:49:01 +11:00
committed by Paul Mackerras
parent 3f9d4f5a5f
commit 3d089f84c6
4 changed files with 34 additions and 26 deletions
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2
arch/powerpc/include/asm/kvm_host.h
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@@ -246,8 +246,6 @@ struct kvm_hpt_info {
unsigned long virt;
/* Array of reverse mapping entries for each guest HPTE */
struct revmap_entry *rev;
unsigned long npte;
unsigned long mask;
/* Guest HPT size is 2**(order) bytes */
u32 order;
/* 1 if HPT allocated with CMA, 0 otherwise */