KVM: PPC: BOOK3S: PR: Fix PURR and SPURR emulation
We use time base for PURR and SPURR emulation with PR KVM since we
are emulating a single threaded core. When using time base
we need to make sure that we don't accumulate time spent in the host
in PURR and SPURR value.
Also we don't need to emulate mtspr because both the registers are
hypervisor resource.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index bb66d8b..4a58731 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -503,8 +503,8 @@
#ifdef CONFIG_BOOKE
u32 decar;
#endif
- u32 tbl;
- u32 tbu;
+ /* Time base value when we entered the guest */
+ u64 entry_tb;
u32 tcr;
ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
u32 ivor[64];