KVM: PPC: Book3S HV: Context-switch new POWER8 SPRs
This adds fields to the struct kvm_vcpu_arch to store the new
guest-accessible SPRs on POWER8, adds code to the get/set_one_reg
functions to allow userspace to access this state, and adds code to
the guest entry and exit to context-switch these SPRs between host
and guest.
Note that DPDES (Directed Privileged Doorbell Exception State) is
shared between threads on a core; hence we store it in struct
kvmppc_vcore and have the master thread save and restore it.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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 b850544..81c92d1 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -304,6 +304,7 @@
ulong lpcr;
u32 arch_compat;
ulong pcr;
+ ulong dpdes; /* doorbell state (POWER8) */
};
#define VCORE_ENTRY_COUNT(vc) ((vc)->entry_exit_count & 0xff)
@@ -448,6 +449,7 @@
ulong pc;
ulong ctr;
ulong lr;
+ ulong tar;
ulong xer;
u32 cr;
@@ -457,13 +459,32 @@
ulong guest_owned_ext;
ulong purr;
ulong spurr;
+ ulong ic;
+ ulong vtb;
ulong dscr;
ulong amr;
ulong uamor;
+ ulong iamr;
u32 ctrl;
ulong dabr;
+ ulong dawr;
+ ulong dawrx;
+ ulong ciabr;
ulong cfar;
ulong ppr;
+ ulong pspb;
+ ulong fscr;
+ ulong tfhar;
+ ulong tfiar;
+ ulong texasr;
+ ulong ebbhr;
+ ulong ebbrr;
+ ulong bescr;
+ ulong csigr;
+ ulong tacr;
+ ulong tcscr;
+ ulong acop;
+ ulong wort;
ulong shadow_srr1;
#endif
u32 vrsave; /* also USPRG0 */
@@ -498,10 +519,12 @@
u32 ccr1;
u32 dbsr;
- u64 mmcr[3];
+ u64 mmcr[5];
u32 pmc[8];
+ u32 spmc[2];
u64 siar;
u64 sdar;
+ u64 sier;
#ifdef CONFIG_KVM_EXIT_TIMING
struct mutex exit_timing_lock;