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KVM: PPC: E500: Explicitly mark shadow maps invalid 

When we invalidate shadow TLB maps on the host, we don't mark them
as not valid. But we should.

Fix this by removing the E500_TLB_VALID from their flags when
invalidating.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2013-01-18 02:27:14 +01:00
parent 9445ef0181
commit 523f0e5421
1 changed files with 10 additions and 3 deletions
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13
arch/powerpc/kvm/e500_tlb.c
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@ -204,9 +204,13 @@ static void inval_gtlbe_on_host(struct kvmppc_vcpu_e500 *vcpu_e500,
{
struct kvm_book3e_206_tlb_entry *gtlbe =
get_entry(vcpu_e500, tlbsel, esel);
struct tlbe_ref *ref = &vcpu_e500->gtlb_priv[tlbsel][esel].ref;
if (tlbsel == 1 &&
vcpu_e500->gtlb_priv[1][esel].ref.flags & E500_TLB_BITMAP) {
/* Don't bother with unmapped entries */
if (!(ref->flags & E500_TLB_VALID))
return;
if (tlbsel == 1 && ref->flags & E500_TLB_BITMAP) {
u64 tmp = vcpu_e500->g2h_tlb1_map[esel];
int hw_tlb_indx;
unsigned long flags;
@ -224,7 +228,7 @@ static void inval_gtlbe_on_host(struct kvmppc_vcpu_e500 *vcpu_e500,
}
mb();
vcpu_e500->g2h_tlb1_map[esel] = 0;
vcpu_e500->gtlb_priv[1][esel].ref.flags &= ~E500_TLB_BITMAP;
ref->flags &= ~(E500_TLB_BITMAP | E500_TLB_VALID);
local_irq_restore(flags);
return;
@ -232,6 +236,9 @@ static void inval_gtlbe_on_host(struct kvmppc_vcpu_e500 *vcpu_e500,
/* Guest tlbe is backed by at most one host tlbe per shadow pid. */
kvmppc_e500_tlbil_one(vcpu_e500, gtlbe);
/* Mark the TLB as not backed by the host anymore */
ref->flags &= ~E500_TLB_VALID;
}
static int tlb0_set_base(gva_t addr, int sets, int ways)