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KVM: PPC: Book3S HV: Access guest VPA in BE

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There are a few shared data structures between the host and the guest. Most
of them get registered through the VPA interface.

These data structures are defined to always be in big endian byte order, so
let's make sure we always access them in big endian.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf
2014-06-11 10:34:19 +02:00
parent 6f22bd3265
commit 0240755225
2 changed files with 14 additions and 14 deletions
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6
arch/powerpc/kvm/book3s_hv_ras.c
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@@ -45,14 +45,14 @@ static void reload_slb(struct kvm_vcpu *vcpu)
return;
/* Sanity check */
n = min_t(u32, slb->persistent, SLB_MIN_SIZE);
n = min_t(u32, be32_to_cpu(slb->persistent), SLB_MIN_SIZE);
if ((void *) &slb->save_area[n] > vcpu->arch.slb_shadow.pinned_end)
return;
/* Load up the SLB from that */
for (i = 0; i < n; ++i) {
unsigned long rb = slb->save_area[i].esid;
unsigned long rs = slb->save_area[i].vsid;
unsigned long rb = be64_to_cpu(slb->save_area[i].esid);
unsigned long rs = be64_to_cpu(slb->save_area[i].vsid);
rb = (rb & ~0xFFFul) | i; /* insert entry number */
asm volatile("slbmte %0,%1" : : "r" (rs), "r" (rb));