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KVM: PPC: Book3S: Fix size of the PSPB register 

The size of the Problem State Priority Boost Register is only
32 bits, but the kvm_vcpu_arch->pspb variable is declared as
"ulong", ie. 64-bit. However, the assembler code accesses this
variable with 32-bit accesses, and the KVM_REG_PPC_PSPB macro
is defined with SIZE_U32, too, so that the current code is
broken on big endian hosts: kvmppc_get_one_reg_hv() will only
return zero for this register since it is using the wrong half
of the pspb variable. Let's fix this problem by adjusting the
size of the pspb field in the kvm_vcpu_arch structure.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Thomas Huth 2015-09-02 11:14:48 +02:00 committed by Paul Mackerras
parent 06554d9f6c
commit f35f3a48d6
1 changed files with 1 additions and 1 deletions
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arch/powerpc/include/asm/kvm_host.h
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@ -486,7 +486,7 @@ struct kvm_vcpu_arch {
ulong ciabr; ulong ciabr;
ulong cfar; ulong cfar;
ulong ppr; ulong ppr;
ulong pspb; u32 pspb;
ulong fscr; ulong fscr;
ulong shadow_fscr; ulong shadow_fscr;
ulong ebbhr; ulong ebbhr;