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| author | Alexander Graf <agraf@suse.de> | 2010-01-15 14:49:12 +0100 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 12:35:55 -0300 |
| commit | 1c0006d8d131585095c4a27dbfcfb3970807a35e (patch) | |
| tree | 2fe67697516624dd058efd90654fa59fcd9d112b | |
| parent | 180a34d2d3fda0151154f9cead4aab9dddd3d0c1 (diff) | |
| download | linux-1c0006d8d131585095c4a27dbfcfb3970807a35e.tar.bz2 | |
KVM: PPC: Fix initial GPR settings
Commit 7d01b4c3ed2bb33ceaf2d270cb4831a67a76b51b introduced PACA backed vcpu
values. With this patch, when a userspace app was setting GPRs before it was
actually first loaded, the set values get discarded.
This is because vcpu_load loads them from the vcpu backing store that we use
whenever we're not owning the PACA.
That behavior is not really a major problem, because we don't need it for
qemu. Other users (like kvmctl) do have problems with it though, so let's
better do it right.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/kvm_ppc.h | 10 |
2 files changed, 8 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index e1b441cce416..db7db0a96967 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -22,7 +22,6 @@ #include <linux/types.h> #include <linux/kvm_host.h> -#include <asm/kvm_ppc.h> #include <asm/kvm_book3s_64_asm.h> struct kvmppc_slb { diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h index 09816da9e950..e2642829e435 100644 --- a/arch/powerpc/include/asm/kvm_ppc.h +++ b/arch/powerpc/include/asm/kvm_ppc.h @@ -28,6 +28,9 @@ #include <linux/types.h> #include <linux/kvm_types.h> #include <linux/kvm_host.h> +#ifdef CONFIG_PPC_BOOK3S +#include <asm/kvm_book3s.h> +#endif enum emulation_result { EMULATE_DONE, /* no further processing */ @@ -102,9 +105,10 @@ extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu); static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) { - if ( num < 14 ) + if ( num < 14 ) { get_paca()->shadow_vcpu.gpr[num] = val; - else + to_book3s(vcpu)->shadow_vcpu.gpr[num] = val; + } else vcpu->arch.gpr[num] = val; } @@ -119,6 +123,7 @@ static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) { get_paca()->shadow_vcpu.cr = val; + to_book3s(vcpu)->shadow_vcpu.cr = val; } static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) @@ -129,6 +134,7 @@ static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) { get_paca()->shadow_vcpu.xer = val; + to_book3s(vcpu)->shadow_vcpu.xer = val; } static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) |