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-rw-r--r--arch/powerpc/include/asm/kvm_ppc.h29
-rw-r--r--arch/powerpc/kvm/44x_emulate.c335
-rw-r--r--arch/powerpc/kvm/44x_tlb.c4
-rw-r--r--arch/powerpc/kvm/44x_tlb.h4
-rw-r--r--arch/powerpc/kvm/Makefile7
-rw-r--r--arch/powerpc/kvm/booke.c1
-rw-r--r--arch/powerpc/kvm/booke.h39
-rw-r--r--arch/powerpc/kvm/emulate.c272
8 files changed, 415 insertions, 276 deletions
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 96d5de90ac5a..aecf95d5fede 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -53,35 +53,13 @@ extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
extern int kvmppc_emulate_instruction(struct kvm_run *run,
struct kvm_vcpu *vcpu);
extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
-extern int kvmppc_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws);
-extern int kvmppc_emul_tlbsx(struct kvm_vcpu *vcpu, u8 rt, u8 ra, u8 rb, u8 rc);
+extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn,
u64 asid, u32 flags);
extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
-/* Helper function for "full" MSR writes. No need to call this if only EE is
- * changing. */
-static inline void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
-{
- if ((new_msr & MSR_PR) != (vcpu->arch.msr & MSR_PR))
- kvmppc_mmu_priv_switch(vcpu, new_msr & MSR_PR);
-
- vcpu->arch.msr = new_msr;
-
- if (vcpu->arch.msr & MSR_WE)
- kvm_vcpu_block(vcpu);
-}
-
-static inline void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 new_pid)
-{
- if (vcpu->arch.pid != new_pid) {
- vcpu->arch.pid = new_pid;
- vcpu->arch.swap_pid = 1;
- }
-}
-
/* Core-specific hooks */
extern int kvmppc_core_check_processor_compat(void);
@@ -99,6 +77,11 @@ extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
struct kvm_interrupt *irq);
+extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int op, int *advance);
+extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);
+extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
+
extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
#endif /* __POWERPC_KVM_PPC_H__ */
diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c
new file mode 100644
index 000000000000..a634c0c4fa7e
--- /dev/null
+++ b/arch/powerpc/kvm/44x_emulate.c
@@ -0,0 +1,335 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
+#include <asm/kvm_ppc.h>
+#include <asm/dcr.h>
+#include <asm/dcr-regs.h>
+#include <asm/disassemble.h>
+
+#include "booke.h"
+#include "44x_tlb.h"
+
+#define OP_RFI 19
+
+#define XOP_RFI 50
+#define XOP_MFMSR 83
+#define XOP_WRTEE 131
+#define XOP_MTMSR 146
+#define XOP_WRTEEI 163
+#define XOP_MFDCR 323
+#define XOP_MTDCR 451
+#define XOP_TLBSX 914
+#define XOP_ICCCI 966
+#define XOP_TLBWE 978
+
+static inline void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 new_pid)
+{
+ if (vcpu->arch.pid != new_pid) {
+ vcpu->arch.pid = new_pid;
+ vcpu->arch.swap_pid = 1;
+ }
+}
+
+static void kvmppc_emul_rfi(struct kvm_vcpu *vcpu)
+{
+ vcpu->arch.pc = vcpu->arch.srr0;
+ kvmppc_set_msr(vcpu, vcpu->arch.srr1);
+}
+
+int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int inst, int *advance)
+{
+ int emulated = EMULATE_DONE;
+ int dcrn;
+ int ra;
+ int rb;
+ int rc;
+ int rs;
+ int rt;
+ int ws;
+
+ switch (get_op(inst)) {
+
+ case OP_RFI:
+ switch (get_xop(inst)) {
+ case XOP_RFI:
+ kvmppc_emul_rfi(vcpu);
+ *advance = 0;
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ break;
+ }
+ break;
+
+ case 31:
+ switch (get_xop(inst)) {
+
+ case XOP_MFMSR:
+ rt = get_rt(inst);
+ vcpu->arch.gpr[rt] = vcpu->arch.msr;
+ break;
+
+ case XOP_MTMSR:
+ rs = get_rs(inst);
+ kvmppc_set_msr(vcpu, vcpu->arch.gpr[rs]);
+ break;
+
+ case XOP_WRTEE:
+ rs = get_rs(inst);
+ vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
+ | (vcpu->arch.gpr[rs] & MSR_EE);
+ break;
+
+ case XOP_WRTEEI:
+ vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
+ | (inst & MSR_EE);
+ break;
+
+ case XOP_MFDCR:
+ dcrn = get_dcrn(inst);
+ rt = get_rt(inst);
+
+ /* The guest may access CPR0 registers to determine the timebase
+ * frequency, and it must know the real host frequency because it
+ * can directly access the timebase registers.
+ *
+ * It would be possible to emulate those accesses in userspace,
+ * but userspace can really only figure out the end frequency.
+ * We could decompose that into the factors that compute it, but
+ * that's tricky math, and it's easier to just report the real
+ * CPR0 values.
+ */
+ switch (dcrn) {
+ case DCRN_CPR0_CONFIG_ADDR:
+ vcpu->arch.gpr[rt] = vcpu->arch.cpr0_cfgaddr;
+ break;
+ case DCRN_CPR0_CONFIG_DATA:
+ local_irq_disable();
+ mtdcr(DCRN_CPR0_CONFIG_ADDR,
+ vcpu->arch.cpr0_cfgaddr);
+ vcpu->arch.gpr[rt] = mfdcr(DCRN_CPR0_CONFIG_DATA);
+ local_irq_enable();
+ break;
+ default:
+ run->dcr.dcrn = dcrn;
+ run->dcr.data = 0;
+ run->dcr.is_write = 0;
+ vcpu->arch.io_gpr = rt;
+ vcpu->arch.dcr_needed = 1;
+ emulated = EMULATE_DO_DCR;
+ }
+
+ break;
+
+ case XOP_MTDCR:
+ dcrn = get_dcrn(inst);
+ rs = get_rs(inst);
+
+ /* emulate some access in kernel */
+ switch (dcrn) {
+ case DCRN_CPR0_CONFIG_ADDR:
+ vcpu->arch.cpr0_cfgaddr = vcpu->arch.gpr[rs];
+ break;
+ default:
+ run->dcr.dcrn = dcrn;
+ run->dcr.data = vcpu->arch.gpr[rs];
+ run->dcr.is_write = 1;
+ vcpu->arch.dcr_needed = 1;
+ emulated = EMULATE_DO_DCR;
+ }
+
+ break;
+
+ case XOP_TLBWE:
+ ra = get_ra(inst);
+ rs = get_rs(inst);
+ ws = get_ws(inst);
+ emulated = kvmppc_44x_emul_tlbwe(vcpu, ra, rs, ws);
+ break;
+
+ case XOP_TLBSX:
+ rt = get_rt(inst);
+ ra = get_ra(inst);
+ rb = get_rb(inst);
+ rc = get_rc(inst);
+ emulated = kvmppc_44x_emul_tlbsx(vcpu, rt, ra, rb, rc);
+ break;
+
+ case XOP_ICCCI:
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ }
+
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ }
+
+ return emulated;
+}
+
+int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
+{
+ switch (sprn) {
+ case SPRN_MMUCR:
+ vcpu->arch.mmucr = vcpu->arch.gpr[rs]; break;
+ case SPRN_PID:
+ kvmppc_set_pid(vcpu, vcpu->arch.gpr[rs]); break;
+ case SPRN_CCR0:
+ vcpu->arch.ccr0 = vcpu->arch.gpr[rs]; break;
+ case SPRN_CCR1:
+ vcpu->arch.ccr1 = vcpu->arch.gpr[rs]; break;
+ case SPRN_DEAR:
+ vcpu->arch.dear = vcpu->arch.gpr[rs]; break;
+ case SPRN_ESR:
+ vcpu->arch.esr = vcpu->arch.gpr[rs]; break;
+ case SPRN_DBCR0:
+ vcpu->arch.dbcr0 = vcpu->arch.gpr[rs]; break;
+ case SPRN_DBCR1:
+ vcpu->arch.dbcr1 = vcpu->arch.gpr[rs]; break;
+ case SPRN_TSR:
+ vcpu->arch.tsr &= ~vcpu->arch.gpr[rs]; break;
+ case SPRN_TCR:
+ vcpu->arch.tcr = vcpu->arch.gpr[rs];
+ kvmppc_emulate_dec(vcpu);
+ break;
+
+ /* Note: SPRG4-7 are user-readable. These values are
+ * loaded into the real SPRGs when resuming the
+ * guest. */
+ case SPRN_SPRG4:
+ vcpu->arch.sprg4 = vcpu->arch.gpr[rs]; break;
+ case SPRN_SPRG5:
+ vcpu->arch.sprg5 = vcpu->arch.gpr[rs]; break;
+ case SPRN_SPRG6:
+ vcpu->arch.sprg6 = vcpu->arch.gpr[rs]; break;
+ case SPRN_SPRG7:
+ vcpu->arch.sprg7 = vcpu->arch.gpr[rs]; break;
+
+ case SPRN_IVPR:
+ vcpu->arch.ivpr = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR0:
+ vcpu->arch.ivor[0] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR1:
+ vcpu->arch.ivor[1] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR2:
+ vcpu->arch.ivor[2] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR3:
+ vcpu->arch.ivor[3] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR4:
+ vcpu->arch.ivor[4] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR5:
+ vcpu->arch.ivor[5] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR6:
+ vcpu->arch.ivor[6] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR7:
+ vcpu->arch.ivor[7] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR8:
+ vcpu->arch.ivor[8] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR9:
+ vcpu->arch.ivor[9] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR10:
+ vcpu->arch.ivor[10] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR11:
+ vcpu->arch.ivor[11] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR12:
+ vcpu->arch.ivor[12] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR13:
+ vcpu->arch.ivor[13] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR14:
+ vcpu->arch.ivor[14] = vcpu->arch.gpr[rs]; break;
+ case SPRN_IVOR15:
+ vcpu->arch.ivor[15] = vcpu->arch.gpr[rs]; break;
+
+ default:
+ return EMULATE_FAIL;
+ }
+
+ return EMULATE_DONE;
+}
+
+int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
+{
+ switch (sprn) {
+ /* 440 */
+ case SPRN_MMUCR:
+ vcpu->arch.gpr[rt] = vcpu->arch.mmucr; break;
+ case SPRN_CCR0:
+ vcpu->arch.gpr[rt] = vcpu->arch.ccr0; break;
+ case SPRN_CCR1:
+ vcpu->arch.gpr[rt] = vcpu->arch.ccr1; break;
+
+ /* Book E */
+ case SPRN_PID:
+ vcpu->arch.gpr[rt] = vcpu->arch.pid; break;
+ case SPRN_IVPR:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivpr; break;
+ case SPRN_DEAR:
+ vcpu->arch.gpr[rt] = vcpu->arch.dear; break;
+ case SPRN_ESR:
+ vcpu->arch.gpr[rt] = vcpu->arch.esr; break;
+ case SPRN_DBCR0:
+ vcpu->arch.gpr[rt] = vcpu->arch.dbcr0; break;
+ case SPRN_DBCR1:
+ vcpu->arch.gpr[rt] = vcpu->arch.dbcr1; break;
+
+ case SPRN_IVOR0:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[0]; break;
+ case SPRN_IVOR1:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[1]; break;
+ case SPRN_IVOR2:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[2]; break;
+ case SPRN_IVOR3:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[3]; break;
+ case SPRN_IVOR4:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[4]; break;
+ case SPRN_IVOR5:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[5]; break;
+ case SPRN_IVOR6:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[6]; break;
+ case SPRN_IVOR7:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[7]; break;
+ case SPRN_IVOR8:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[8]; break;
+ case SPRN_IVOR9:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[9]; break;
+ case SPRN_IVOR10:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[10]; break;
+ case SPRN_IVOR11:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[11]; break;
+ case SPRN_IVOR12:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[12]; break;
+ case SPRN_IVOR13:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[13]; break;
+ case SPRN_IVOR14:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[14]; break;
+ case SPRN_IVOR15:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[15]; break;
+ default:
+ return EMULATE_FAIL;
+ }
+
+ return EMULATE_DONE;
+}
+
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index 5152fe5b2a9b..bb6da134cadb 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -301,7 +301,7 @@ static int tlbe_is_host_safe(const struct kvm_vcpu *vcpu,
return 1;
}
-int kvmppc_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
+int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
{
u64 eaddr;
u64 raddr;
@@ -363,7 +363,7 @@ int kvmppc_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
return EMULATE_DONE;
}
-int kvmppc_emul_tlbsx(struct kvm_vcpu *vcpu, u8 rt, u8 ra, u8 rb, u8 rc)
+int kvmppc_44x_emul_tlbsx(struct kvm_vcpu *vcpu, u8 rt, u8 ra, u8 rb, u8 rc)
{
u32 ea;
int index;
diff --git a/arch/powerpc/kvm/44x_tlb.h b/arch/powerpc/kvm/44x_tlb.h
index 357d79ae5493..b1029af3de20 100644
--- a/arch/powerpc/kvm/44x_tlb.h
+++ b/arch/powerpc/kvm/44x_tlb.h
@@ -31,6 +31,10 @@ extern struct kvmppc_44x_tlbe *kvmppc_44x_itlb_search(struct kvm_vcpu *vcpu,
gva_t eaddr);
extern void kvmppc_tlbe_set_modified(struct kvm_vcpu *vcpu, unsigned int i);
+extern int kvmppc_44x_emul_tlbsx(struct kvm_vcpu *vcpu, u8 rt, u8 ra, u8 rb,
+ u8 rc);
+extern int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws);
+
/* TLB helper functions */
static inline unsigned int get_tlb_size(const struct kvmppc_44x_tlbe *tlbe)
{
diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index f5e33756f318..f045fad0f4f1 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -13,5 +13,10 @@ obj-$(CONFIG_KVM) += kvm.o
AFLAGS_booke_interrupts.o := -I$(obj)
-kvm-440-objs := booke.o booke_interrupts.o 44x.o 44x_tlb.o
+kvm-440-objs := \
+ booke.o \
+ booke_interrupts.o \
+ 44x.o \
+ 44x_tlb.o \
+ 44x_emulate.o
obj-$(CONFIG_KVM_440) += kvm-440.o
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 138014acf3cf..ea630095e280 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -29,6 +29,7 @@
#include <asm/kvm_ppc.h>
#include <asm/cacheflush.h>
+#include "booke.h"
#include "44x_tlb.h"
unsigned long kvmppc_booke_handlers;
diff --git a/arch/powerpc/kvm/booke.h b/arch/powerpc/kvm/booke.h
new file mode 100644
index 000000000000..f694a4b2dafa
--- /dev/null
+++ b/arch/powerpc/kvm/booke.h
@@ -0,0 +1,39 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
+#ifndef __KVM_BOOKE_H__
+#define __KVM_BOOKE_H__
+
+#include <linux/types.h>
+#include <linux/kvm_host.h>
+
+/* Helper function for "full" MSR writes. No need to call this if only EE is
+ * changing. */
+static inline void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
+{
+ if ((new_msr & MSR_PR) != (vcpu->arch.msr & MSR_PR))
+ kvmppc_mmu_priv_switch(vcpu, new_msr & MSR_PR);
+
+ vcpu->arch.msr = new_msr;
+
+ if (vcpu->arch.msr & MSR_WE)
+ kvm_vcpu_block(vcpu);
+}
+
+#endif /* __KVM_BOOKE_H__ */
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 5fd9cf779be5..30a49f8c49b2 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -23,14 +23,13 @@
#include <linux/string.h>
#include <linux/kvm_host.h>
-#include <asm/dcr.h>
-#include <asm/dcr-regs.h>
+#include <asm/reg.h>
#include <asm/time.h>
#include <asm/byteorder.h>
#include <asm/kvm_ppc.h>
#include <asm/disassemble.h>
-static void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
+void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
{
if (vcpu->arch.tcr & TCR_DIE) {
/* The decrementer ticks at the same rate as the timebase, so
@@ -46,12 +45,6 @@ static void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
}
}
-static void kvmppc_emul_rfi(struct kvm_vcpu *vcpu)
-{
- vcpu->arch.pc = vcpu->arch.srr0;
- kvmppc_set_msr(vcpu, vcpu->arch.srr1);
-}
-
/* XXX to do:
* lhax
* lhaux
@@ -66,18 +59,17 @@ static void kvmppc_emul_rfi(struct kvm_vcpu *vcpu)
*
* XXX is_bigendian should depend on MMU mapping or MSR[LE]
*/
+/* XXX Should probably auto-generate instruction decoding for a particular core
+ * from opcode tables in the future. */
int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
{
u32 inst = vcpu->arch.last_inst;
u32 ea;
int ra;
int rb;
- int rc;
int rs;
int rt;
- int ws;
int sprn;
- int dcrn;
enum emulation_result emulated = EMULATE_DONE;
int advance = 1;
@@ -88,19 +80,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
advance = 0;
break;
- case 19:
- switch (get_xop(inst)) {
- case 50: /* rfi */
- kvmppc_emul_rfi(vcpu);
- advance = 0;
- break;
-
- default:
- emulated = EMULATE_FAIL;
- break;
- }
- break;
-
case 31:
switch (get_xop(inst)) {
@@ -109,27 +88,11 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
break;
- case 83: /* mfmsr */
- rt = get_rt(inst);
- vcpu->arch.gpr[rt] = vcpu->arch.msr;
- break;
-
case 87: /* lbzx */
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
break;
- case 131: /* wrtee */
- rs = get_rs(inst);
- vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
- | (vcpu->arch.gpr[rs] & MSR_EE);
- break;
-
- case 146: /* mtmsr */
- rs = get_rs(inst);
- kvmppc_set_msr(vcpu, vcpu->arch.gpr[rs]);
- break;
-
case 151: /* stwx */
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
@@ -137,11 +100,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
4, 1);
break;
- case 163: /* wrteei */
- vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
- | (inst & MSR_EE);
- break;
-
case 215: /* stbx */
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
@@ -182,42 +140,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
vcpu->arch.gpr[ra] = ea;
break;
- case 323: /* mfdcr */
- dcrn = get_dcrn(inst);
- rt = get_rt(inst);
-
- /* The guest may access CPR0 registers to determine the timebase
- * frequency, and it must know the real host frequency because it
- * can directly access the timebase registers.
- *
- * It would be possible to emulate those accesses in userspace,
- * but userspace can really only figure out the end frequency.
- * We could decompose that into the factors that compute it, but
- * that's tricky math, and it's easier to just report the real
- * CPR0 values.
- */
- switch (dcrn) {
- case DCRN_CPR0_CONFIG_ADDR:
- vcpu->arch.gpr[rt] = vcpu->arch.cpr0_cfgaddr;
- break;
- case DCRN_CPR0_CONFIG_DATA:
- local_irq_disable();
- mtdcr(DCRN_CPR0_CONFIG_ADDR,
- vcpu->arch.cpr0_cfgaddr);
- vcpu->arch.gpr[rt] = mfdcr(DCRN_CPR0_CONFIG_DATA);
- local_irq_enable();
- break;
- default:
- run->dcr.dcrn = dcrn;
- run->dcr.data = 0;
- run->dcr.is_write = 0;
- vcpu->arch.io_gpr = rt;
- vcpu->arch.dcr_needed = 1;
- emulated = EMULATE_DO_DCR;
- }
-
- break;
-
case 339: /* mfspr */
sprn = get_sprn(inst);
rt = get_rt(inst);
@@ -227,26 +149,8 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
vcpu->arch.gpr[rt] = vcpu->arch.srr0; break;
case SPRN_SRR1:
vcpu->arch.gpr[rt] = vcpu->arch.srr1; break;
- case SPRN_MMUCR:
- vcpu->arch.gpr[rt] = vcpu->arch.mmucr; break;
- case SPRN_PID:
- vcpu->arch.gpr[rt] = vcpu->arch.pid; break;
- case SPRN_IVPR:
- vcpu->arch.gpr[rt] = vcpu->arch.ivpr; break;
- case SPRN_CCR0:
- vcpu->arch.gpr[rt] = vcpu->arch.ccr0; break;
- case SPRN_CCR1:
- vcpu->arch.gpr[rt] = vcpu->arch.ccr1; break;
case SPRN_PVR:
vcpu->arch.gpr[rt] = vcpu->arch.pvr; break;
- case SPRN_DEAR:
- vcpu->arch.gpr[rt] = vcpu->arch.dear; break;
- case SPRN_ESR:
- vcpu->arch.gpr[rt] = vcpu->arch.esr; break;
- case SPRN_DBCR0:
- vcpu->arch.gpr[rt] = vcpu->arch.dbcr0; break;
- case SPRN_DBCR1:
- vcpu->arch.gpr[rt] = vcpu->arch.dbcr1; break;
/* Note: mftb and TBRL/TBWL are user-accessible, so
* the guest can always access the real TB anyways.
@@ -267,42 +171,12 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
/* Note: SPRG4-7 are user-readable, so we don't get
* a trap. */
- case SPRN_IVOR0:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[0]; break;
- case SPRN_IVOR1:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[1]; break;
- case SPRN_IVOR2:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[2]; break;
- case SPRN_IVOR3:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[3]; break;
- case SPRN_IVOR4:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[4]; break;
- case SPRN_IVOR5:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[5]; break;
- case SPRN_IVOR6:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[6]; break;
- case SPRN_IVOR7:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[7]; break;
- case SPRN_IVOR8:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[8]; break;
- case SPRN_IVOR9:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[9]; break;
- case SPRN_IVOR10:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[10]; break;
- case SPRN_IVOR11:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[11]; break;
- case SPRN_IVOR12:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[12]; break;
- case SPRN_IVOR13:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[13]; break;
- case SPRN_IVOR14:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[14]; break;
- case SPRN_IVOR15:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[15]; break;
-
default:
- printk("mfspr: unknown spr %x\n", sprn);
- vcpu->arch.gpr[rt] = 0;
+ emulated = kvmppc_core_emulate_mfspr(vcpu, sprn, rt);
+ if (emulated == EMULATE_FAIL) {
+ printk("mfspr: unknown spr %x\n", sprn);
+ vcpu->arch.gpr[rt] = 0;
+ }
break;
}
break;
@@ -332,25 +206,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
vcpu->arch.gpr[ra] = ea;
break;
- case 451: /* mtdcr */
- dcrn = get_dcrn(inst);
- rs = get_rs(inst);
-
- /* emulate some access in kernel */
- switch (dcrn) {
- case DCRN_CPR0_CONFIG_ADDR:
- vcpu->arch.cpr0_cfgaddr = vcpu->arch.gpr[rs];
- break;
- default:
- run->dcr.dcrn = dcrn;
- run->dcr.data = vcpu->arch.gpr[rs];
- run->dcr.is_write = 1;
- vcpu->arch.dcr_needed = 1;
- emulated = EMULATE_DO_DCR;
- }
-
- break;
-
case 467: /* mtspr */
sprn = get_sprn(inst);
rs = get_rs(inst);
@@ -359,22 +214,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
vcpu->arch.srr0 = vcpu->arch.gpr[rs]; break;
case SPRN_SRR1:
vcpu->arch.srr1 = vcpu->arch.gpr[rs]; break;
- case SPRN_MMUCR:
- vcpu->arch.mmucr = vcpu->arch.gpr[rs]; break;
- case SPRN_PID:
- kvmppc_set_pid(vcpu, vcpu->arch.gpr[rs]); break;
- case SPRN_CCR0:
- vcpu->arch.ccr0 = vcpu->arch.gpr[rs]; break;
- case SPRN_CCR1:
- vcpu->arch.ccr1 = vcpu->arch.gpr[rs]; break;
- case SPRN_DEAR:
- vcpu->arch.dear = vcpu->arch.gpr[rs]; break;
- case SPRN_ESR:
- vcpu->arch.esr = vcpu->arch.gpr[rs]; break;
- case SPRN_DBCR0:
- vcpu->arch.dbcr0 = vcpu->arch.gpr[rs]; break;
- case SPRN_DBCR1:
- vcpu->arch.dbcr1 = vcpu->arch.gpr[rs]; break;
/* XXX We need to context-switch the timebase for
* watchdog and FIT. */
@@ -386,14 +225,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
kvmppc_emulate_dec(vcpu);
break;
- case SPRN_TSR:
- vcpu->arch.tsr &= ~vcpu->arch.gpr[rs]; break;
-
- case SPRN_TCR:
- vcpu->arch.tcr = vcpu->arch.gpr[rs];
- kvmppc_emulate_dec(vcpu);
- break;
-
case SPRN_SPRG0:
vcpu->arch.sprg0 = vcpu->arch.gpr[rs]; break;
case SPRN_SPRG1:
@@ -403,56 +234,10 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
case SPRN_SPRG3:
vcpu->arch.sprg3 = vcpu->arch.gpr[rs]; break;
- /* Note: SPRG4-7 are user-readable. These values are
- * loaded into the real SPRGs when resuming the
- * guest. */
- case SPRN_SPRG4:
- vcpu->arch.sprg4 = vcpu->arch.gpr[rs]; break;
- case SPRN_SPRG5:
- vcpu->arch.sprg5 = vcpu->arch.gpr[rs]; break;
- case SPRN_SPRG6:
- vcpu->arch.sprg6 = vcpu->arch.gpr[rs]; break;
- case SPRN_SPRG7:
- vcpu->arch.sprg7 = vcpu->arch.gpr[rs]; break;
-
- case SPRN_IVPR:
- vcpu->arch.ivpr = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR0:
- vcpu->arch.ivor[0] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR1:
- vcpu->arch.ivor[1] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR2:
- vcpu->arch.ivor[2] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR3:
- vcpu->arch.ivor[3] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR4:
- vcpu->arch.ivor[4] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR5:
- vcpu->arch.ivor[5] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR6:
- vcpu->arch.ivor[6] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR7:
- vcpu->arch.ivor[7] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR8:
- vcpu->arch.ivor[8] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR9:
- vcpu->arch.ivor[9] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR10:
- vcpu->arch.ivor[10] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR11:
- vcpu->arch.ivor[11] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR12:
- vcpu->arch.ivor[12] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR13:
- vcpu->arch.ivor[13] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR14:
- vcpu->arch.ivor[14] = vcpu->arch.gpr[rs]; break;
- case SPRN_IVOR15:
- vcpu->arch.ivor[15] = vcpu->arch.gpr[rs]; break;
-
default:
- printk("mtspr: unknown spr %x\n", sprn);
- emulated = EMULATE_FAIL;
+ emulated = kvmppc_core_emulate_mtspr(vcpu, sprn, rs);
+ if (emulated == EMULATE_FAIL)
+ printk("mtspr: unknown spr %x\n", sprn);
break;
}
break;
@@ -483,21 +268,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
4, 0);
break;
- case 978: /* tlbwe */
- ra = get_ra(inst);
- rs = get_rs(inst);
- ws = get_ws(inst);
- emulated = kvmppc_emul_tlbwe(vcpu, ra, rs, ws);
- break;
-
- case 914: /* tlbsx */
- rt = get_rt(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
- rc = get_rc(inst);
- emulated = kvmppc_emul_tlbsx(vcpu, rt, ra, rb, rc);
- break;
-
case 790: /* lhbrx */
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 0);
@@ -513,14 +283,9 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
2, 0);
break;
- case 966: /* iccci */
- break;
-
default:
- printk("unknown: op %d xop %d\n", get_op(inst),
- get_xop(inst));
+ /* Attempt core-specific emulation below. */
emulated = EMULATE_FAIL;
- break;
}
break;
@@ -603,9 +368,16 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
default:
- printk("unknown op %d\n", get_op(inst));
emulated = EMULATE_FAIL;
- break;
+ }
+
+ if (emulated == EMULATE_FAIL) {
+ emulated = kvmppc_core_emulate_op(run, vcpu, inst, &advance);
+ if (emulated == EMULATE_FAIL) {
+ advance = 0;
+ printk(KERN_ERR "Couldn't emulate instruction 0x%08x "
+ "(op %d xop %d)\n", inst, get_op(inst), get_xop(inst));
+ }
}
KVMTRACE_3D(PPC_INSTR, vcpu, inst, vcpu->arch.pc, emulated, entryexit);
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-04 04:58:32 +0000