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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-06 10:49:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-06 10:49:42 -0700
commit39eda2aba6be642b71f2e0ad623dcb09fd9d79cf (patch)
treecd0c8f547847641af73e38aab2478f3119dee490 /arch/powerpc/kvm
parent2e515bf096c245ba87f20ab4b4ea20f911afaeda (diff)
parent9f24b0c9ef9b6b1292579c9e2cd7ff07ddc372b7 (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Ben Herrenschmidt: "Here's the powerpc batch for this merge window. Some of the highlights are: - A bunch of endian fixes ! We don't have full LE support yet in that release but this contains a lot of fixes all over arch/powerpc to use the proper accessors, call the firmware with the right endian mode, etc... - A few updates to our "powernv" platform (non-virtualized, the one to run KVM on), among other, support for bridging the P8 LPC bus for UARTs, support and some EEH fixes. - Some mpc51xx clock API cleanups in preparation for a clock API overhaul - A pile of cleanups of our old math emulation code, including better support for using it to emulate optional FP instructions on embedded chips that otherwise have a HW FPU. - Some infrastructure in selftest, for powerpc now, but could be generalized, initially used by some tests for our perf instruction counting code. - A pile of fixes for hotplug on pseries (that was seriously bitrotting) - The usual slew of freescale embedded updates, new boards, 64-bit hiberation support, e6500 core PMU support, etc..." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits) powerpc: Correct FSCR bit definitions powerpc/xmon: Fix printing of set of CPUs in xmon powerpc/pseries: Move lparcfg.c to platforms/pseries powerpc/powernv: Return secondary CPUs to firmware on kexec powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32 powerpc: Cleanup handling of the DSCR bit in the FSCR register powerpc/pseries: Child nodes are not detached by dlpar_detach_node powerpc/pseries: Add mising of_node_put in delete_dt_node powerpc/pseries: Make dlpar_configure_connector parent node aware powerpc/pseries: Do all node initialization in dlpar_parse_cc_node powerpc/pseries: Fix parsing of initial node path in update_dt_node powerpc/pseries: Pack update_props_workarea to map correctly to rtas buffer header powerpc/pseries: Fix over writing of rtas return code in update_dt_node powerpc/pseries: Fix creation of loop in device node property list powerpc: Skip emulating & leave interrupts off for kernel program checks powerpc: Add more exception trampolines for hypervisor exceptions powerpc: Fix location and rename exception trampolines powerpc: Add more trap names to xmon powerpc/pseries: Add a warning in the case of cross-cpu VPA registration powerpc: Update the 00-Index in Documentation/powerpc ...
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r--arch/powerpc/kvm/book3s_64_slb.S4
-rw-r--r--arch/powerpc/kvm/book3s_hv.c2
-rw-r--r--arch/powerpc/kvm/book3s_hv_rm_mmu.c4
-rw-r--r--arch/powerpc/kvm/book3s_hv_rmhandlers.S12
-rw-r--r--arch/powerpc/kvm/emulate.c45
5 files changed, 22 insertions, 45 deletions
diff --git a/arch/powerpc/kvm/book3s_64_slb.S b/arch/powerpc/kvm/book3s_64_slb.S
index 4f0caecc0f9d..4f12e8f0c718 100644
--- a/arch/powerpc/kvm/book3s_64_slb.S
+++ b/arch/powerpc/kvm/book3s_64_slb.S
@@ -17,6 +17,10 @@
* Authors: Alexander Graf <agraf@suse.de>
*/
+#ifdef __LITTLE_ENDIAN__
+#error Need to fix SLB shadow accesses in little endian mode
+#endif
+
#define SHADOW_SLB_ESID(num) (SLBSHADOW_SAVEAREA + (num * 0x10))
#define SHADOW_SLB_VSID(num) (SLBSHADOW_SAVEAREA + (num * 0x10) + 0x8)
#define UNBOLT_SLB_ENTRY(num) \
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index b0ee3bc9ca76..62a2b5ab08ed 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -217,7 +217,7 @@ struct kvm_vcpu *kvmppc_find_vcpu(struct kvm *kvm, int id)
static void init_vpa(struct kvm_vcpu *vcpu, struct lppaca *vpa)
{
- vpa->shared_proc = 1;
+ vpa->__old_status |= LPPACA_OLD_SHARED_PROC;
vpa->yield_count = 1;
}
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 45e30d6e462b..9c515440ad1a 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -363,7 +363,11 @@ long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
vcpu->arch.pgdir, true, &vcpu->arch.gpr[4]);
}
+#ifdef __BIG_ENDIAN__
#define LOCK_TOKEN (*(u32 *)(&get_paca()->lock_token))
+#else
+#define LOCK_TOKEN (*(u32 *)(&get_paca()->paca_index))
+#endif
static inline int try_lock_tlbie(unsigned int *lock)
{
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 60dce5bfab3f..294b7af28cdd 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -29,6 +29,10 @@
#include <asm/kvm_book3s_asm.h>
#include <asm/mmu-hash64.h>
+#ifdef __LITTLE_ENDIAN__
+#error Need to fix lppaca and SLB shadow accesses in little endian mode
+#endif
+
/*****************************************************************************
* *
* Real Mode handlers that need to be in the linear mapping *
@@ -389,7 +393,11 @@ toc_tlbie_lock:
.tc native_tlbie_lock[TC],native_tlbie_lock
.previous
ld r3,toc_tlbie_lock@toc(2)
+#ifdef __BIG_ENDIAN__
lwz r8,PACA_LOCK_TOKEN(r13)
+#else
+ lwz r8,PACAPACAINDEX(r13)
+#endif
24: lwarx r0,0,r3
cmpwi r0,0
bne 24b
@@ -964,7 +972,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
32: ld r4,VCPU_KVM(r9) /* pointer to struct kvm */
/* Take the guest's tlbie_lock */
+#ifdef __BIG_ENDIAN__
lwz r8,PACA_LOCK_TOKEN(r13)
+#else
+ lwz r8,PACAPACAINDEX(r13)
+#endif
addi r3,r4,KVM_TLBIE_LOCK
24: lwarx r0,0,r3
cmpwi r0,0
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 2c52ada30775..751cd45f65a0 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -30,53 +30,10 @@
#include <asm/byteorder.h>
#include <asm/kvm_ppc.h>
#include <asm/disassemble.h>
+#include <asm/ppc-opcode.h>
#include "timing.h"
#include "trace.h"
-#define OP_TRAP 3
-#define OP_TRAP_64 2
-
-#define OP_31_XOP_TRAP 4
-#define OP_31_XOP_LWZX 23
-#define OP_31_XOP_DCBST 54
-#define OP_31_XOP_TRAP_64 68
-#define OP_31_XOP_DCBF 86
-#define OP_31_XOP_LBZX 87
-#define OP_31_XOP_STWX 151
-#define OP_31_XOP_STBX 215
-#define OP_31_XOP_LBZUX 119
-#define OP_31_XOP_STBUX 247
-#define OP_31_XOP_LHZX 279
-#define OP_31_XOP_LHZUX 311
-#define OP_31_XOP_MFSPR 339
-#define OP_31_XOP_LHAX 343
-#define OP_31_XOP_STHX 407
-#define OP_31_XOP_STHUX 439
-#define OP_31_XOP_MTSPR 467
-#define OP_31_XOP_DCBI 470
-#define OP_31_XOP_LWBRX 534
-#define OP_31_XOP_TLBSYNC 566
-#define OP_31_XOP_STWBRX 662
-#define OP_31_XOP_LHBRX 790
-#define OP_31_XOP_STHBRX 918
-
-#define OP_LWZ 32
-#define OP_LD 58
-#define OP_LWZU 33
-#define OP_LBZ 34
-#define OP_LBZU 35
-#define OP_STW 36
-#define OP_STWU 37
-#define OP_STD 62
-#define OP_STB 38
-#define OP_STBU 39
-#define OP_LHZ 40
-#define OP_LHZU 41
-#define OP_LHA 42
-#define OP_LHAU 43
-#define OP_STH 44
-#define OP_STHU 45
-
void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
{
unsigned long dec_nsec;