KVM: PPC: e500mc support

Add processor support for e500mc, using hardware virtualization support
(GS-mode).

Current issues include:
 - No support for external proxy (coreint) interrupt mode in the guest.

Includes work by Ashish Kalra <Ashish.Kalra@freescale.com>,
Varun Sethi <Varun.Sethi@freescale.com>, and
Liu Yu <yu.liu@freescale.com>.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>

2 files changed, 5 insertions, 2 deletions

diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index 7108a9c490a3..67c34afc6b5d 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -168,6 +168,7 @@ extern const char *powerpc_base_platform;
 #define CPU_FTR_LWSYNC                  ASM_CONST(0x0000000008000000)
 #define CPU_FTR_NOEXECUTE               ASM_CONST(0x0000000010000000)
 #define CPU_FTR_INDEXED_DCR             ASM_CONST(0x0000000020000000)
+#define CPU_FTR_EMB_HV                  ASM_CONST(0x0000000040000000)
 
 /*
  * Add the 64-bit processor unique features in the top half of the word;
@@ -386,11 +387,11 @@ extern const char *powerpc_base_platform;
             CPU_FTR_NODSISRALIGN | CPU_FTR_NOEXECUTE)
 #define CPU_FTRS_E500MC (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \
             CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \
-            CPU_FTR_DBELL | CPU_FTR_DEBUG_LVL_EXC)
+            CPU_FTR_DBELL | CPU_FTR_DEBUG_LVL_EXC | CPU_FTR_EMB_HV)
 #define CPU_FTRS_E5500  (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \
             CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \
             CPU_FTR_DBELL | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
-            CPU_FTR_DEBUG_LVL_EXC)
+            CPU_FTR_DEBUG_LVL_EXC | CPU_FTR_EMB_HV)
 #define CPU_FTRS_E6500  (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \
             CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \
             CPU_FTR_DBELL | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
@@ -539,6 +540,7 @@ enum {
 #ifdef CONFIG_PPC_E500MC
             CPU_FTRS_E500MC & CPU_FTRS_E5500 & CPU_FTRS_E6500 &
 #endif
+            ~CPU_FTR_EMB_HV &   /* can be removed at runtime */
             CPU_FTRS_POSSIBLE,
 };
 #endif /* __powerpc64__ */
diff --git a/arch/powerpc/include/asm/kvm.h b/arch/powerpc/include/asm/kvm.h
index b921c3f48928..1bea4d8ea6f4 100644
--- a/arch/powerpc/include/asm/kvm.h
+++ b/arch/powerpc/include/asm/kvm.h
@@ -277,6 +277,7 @@ struct kvm_sync_regs {
 #define KVM_CPU_E500V2          2
 #define KVM_CPU_3S_32           3
 #define KVM_CPU_3S_64           4
+#define KVM_CPU_E500MC          5
 
 /* for KVM_CAP_SPAPR_TCE */
 struct kvm_create_spapr_tce {