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-rw-r--r--arch/powerpc/kvm/emulate.c503
1 files changed, 258 insertions, 245 deletions
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 4a9ac6640fa..da86d9ba347 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -13,6 +13,7 @@
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright IBM Corp. 2007
+ * Copyright 2011 Freescale Semiconductor, Inc.
*
* Authors: Hollis Blanchard <hollisb@us.ibm.com>
*/
@@ -22,89 +23,188 @@
#include <linux/types.h>
#include <linux/string.h>
#include <linux/kvm_host.h>
+#include <linux/clockchips.h>
#include <asm/reg.h>
#include <asm/time.h>
#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_LWZX 23
-#define OP_31_XOP_LBZX 87
-#define OP_31_XOP_STWX 151
-#define OP_31_XOP_STBX 215
-#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_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_LWZU 33
-#define OP_LBZ 34
-#define OP_LBZU 35
-#define OP_STW 36
-#define OP_STWU 37
-#define OP_STB 38
-#define OP_STBU 39
-#define OP_LHZ 40
-#define OP_LHZU 41
-#define OP_STH 44
-#define OP_STHU 45
-
-#ifdef CONFIG_PPC64
-static int kvmppc_dec_enabled(struct kvm_vcpu *vcpu)
-{
- return 1;
-}
-#else
-static int kvmppc_dec_enabled(struct kvm_vcpu *vcpu)
-{
- return vcpu->arch.tcr & TCR_DIE;
-}
-#endif
-
void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
{
unsigned long dec_nsec;
+ unsigned long long dec_time;
pr_debug("mtDEC: %x\n", vcpu->arch.dec);
-#ifdef CONFIG_PPC64
+ hrtimer_try_to_cancel(&vcpu->arch.dec_timer);
+
+#ifdef CONFIG_PPC_BOOK3S
+ /* mtdec lowers the interrupt line when positive. */
+ kvmppc_core_dequeue_dec(vcpu);
+
/* POWER4+ triggers a dec interrupt if the value is < 0 */
if (vcpu->arch.dec & 0x80000000) {
- hrtimer_try_to_cancel(&vcpu->arch.dec_timer);
kvmppc_core_queue_dec(vcpu);
return;
}
#endif
- if (kvmppc_dec_enabled(vcpu)) {
- /* The decrementer ticks at the same rate as the timebase, so
- * that's how we convert the guest DEC value to the number of
- * host ticks. */
-
- hrtimer_try_to_cancel(&vcpu->arch.dec_timer);
- dec_nsec = vcpu->arch.dec;
- dec_nsec *= 1000;
- dec_nsec /= tb_ticks_per_usec;
- hrtimer_start(&vcpu->arch.dec_timer, ktime_set(0, dec_nsec),
- HRTIMER_MODE_REL);
- vcpu->arch.dec_jiffies = get_tb();
- } else {
- hrtimer_try_to_cancel(&vcpu->arch.dec_timer);
+
+#ifdef CONFIG_BOOKE
+ /* On BOOKE, DEC = 0 is as good as decrementer not enabled */
+ if (vcpu->arch.dec == 0)
+ return;
+#endif
+
+ /*
+ * The decrementer ticks at the same rate as the timebase, so
+ * that's how we convert the guest DEC value to the number of
+ * host ticks.
+ */
+
+ dec_time = vcpu->arch.dec;
+ /*
+ * Guest timebase ticks at the same frequency as host decrementer.
+ * So use the host decrementer calculations for decrementer emulation.
+ */
+ dec_time = dec_time << decrementer_clockevent.shift;
+ do_div(dec_time, decrementer_clockevent.mult);
+ dec_nsec = do_div(dec_time, NSEC_PER_SEC);
+ hrtimer_start(&vcpu->arch.dec_timer,
+ ktime_set(dec_time, dec_nsec), HRTIMER_MODE_REL);
+ vcpu->arch.dec_jiffies = get_tb();
+}
+
+u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb)
+{
+ u64 jd = tb - vcpu->arch.dec_jiffies;
+
+#ifdef CONFIG_BOOKE
+ if (vcpu->arch.dec < jd)
+ return 0;
+#endif
+
+ return vcpu->arch.dec - jd;
+}
+
+static int kvmppc_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
+{
+ enum emulation_result emulated = EMULATE_DONE;
+ ulong spr_val = kvmppc_get_gpr(vcpu, rs);
+
+ switch (sprn) {
+ case SPRN_SRR0:
+ kvmppc_set_srr0(vcpu, spr_val);
+ break;
+ case SPRN_SRR1:
+ kvmppc_set_srr1(vcpu, spr_val);
+ break;
+
+ /* XXX We need to context-switch the timebase for
+ * watchdog and FIT. */
+ case SPRN_TBWL: break;
+ case SPRN_TBWU: break;
+
+ case SPRN_DEC:
+ vcpu->arch.dec = spr_val;
+ kvmppc_emulate_dec(vcpu);
+ break;
+
+ case SPRN_SPRG0:
+ kvmppc_set_sprg0(vcpu, spr_val);
+ break;
+ case SPRN_SPRG1:
+ kvmppc_set_sprg1(vcpu, spr_val);
+ break;
+ case SPRN_SPRG2:
+ kvmppc_set_sprg2(vcpu, spr_val);
+ break;
+ case SPRN_SPRG3:
+ kvmppc_set_sprg3(vcpu, spr_val);
+ break;
+
+ /* PIR can legally be written, but we ignore it */
+ case SPRN_PIR: break;
+
+ default:
+ emulated = vcpu->kvm->arch.kvm_ops->emulate_mtspr(vcpu, sprn,
+ spr_val);
+ if (emulated == EMULATE_FAIL)
+ printk(KERN_INFO "mtspr: unknown spr "
+ "0x%x\n", sprn);
+ break;
}
+
+ kvmppc_set_exit_type(vcpu, EMULATED_MTSPR_EXITS);
+
+ return emulated;
+}
+
+static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
+{
+ enum emulation_result emulated = EMULATE_DONE;
+ ulong spr_val = 0;
+
+ switch (sprn) {
+ case SPRN_SRR0:
+ spr_val = kvmppc_get_srr0(vcpu);
+ break;
+ case SPRN_SRR1:
+ spr_val = kvmppc_get_srr1(vcpu);
+ break;
+ case SPRN_PVR:
+ spr_val = vcpu->arch.pvr;
+ break;
+ case SPRN_PIR:
+ spr_val = vcpu->vcpu_id;
+ break;
+
+ /* Note: mftb and TBRL/TBWL are user-accessible, so
+ * the guest can always access the real TB anyways.
+ * In fact, we probably will never see these traps. */
+ case SPRN_TBWL:
+ spr_val = get_tb() >> 32;
+ break;
+ case SPRN_TBWU:
+ spr_val = get_tb();
+ break;
+
+ case SPRN_SPRG0:
+ spr_val = kvmppc_get_sprg0(vcpu);
+ break;
+ case SPRN_SPRG1:
+ spr_val = kvmppc_get_sprg1(vcpu);
+ break;
+ case SPRN_SPRG2:
+ spr_val = kvmppc_get_sprg2(vcpu);
+ break;
+ case SPRN_SPRG3:
+ spr_val = kvmppc_get_sprg3(vcpu);
+ break;
+ /* Note: SPRG4-7 are user-readable, so we don't get
+ * a trap. */
+
+ case SPRN_DEC:
+ spr_val = kvmppc_get_dec(vcpu, get_tb());
+ break;
+ default:
+ emulated = vcpu->kvm->arch.kvm_ops->emulate_mfspr(vcpu, sprn,
+ &spr_val);
+ if (unlikely(emulated == EMULATE_FAIL)) {
+ printk(KERN_INFO "mfspr: unknown spr "
+ "0x%x\n", sprn);
+ }
+ break;
+ }
+
+ if (emulated == EMULATE_DONE)
+ kvmppc_set_gpr(vcpu, rt, spr_val);
+ kvmppc_set_exit_type(vcpu, EMULATED_MFSPR_EXITS);
+
+ return emulated;
}
/* XXX to do:
@@ -119,213 +219,119 @@ void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
* lmw
* stmw
*
- * 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 rs;
- int rt;
- int sprn;
+ u32 inst = kvmppc_get_last_inst(vcpu);
+ int ra = get_ra(inst);
+ int rs = get_rs(inst);
+ int rt = get_rt(inst);
+ int sprn = get_sprn(inst);
enum emulation_result emulated = EMULATE_DONE;
int advance = 1;
/* this default type might be overwritten by subcategories */
kvmppc_set_exit_type(vcpu, EMULATED_INST_EXITS);
- pr_debug(KERN_INFO "Emulating opcode %d / %d\n", get_op(inst), get_xop(inst));
+ pr_debug("Emulating opcode %d / %d\n", get_op(inst), get_xop(inst));
switch (get_op(inst)) {
case OP_TRAP:
-#ifdef CONFIG_PPC64
+#ifdef CONFIG_PPC_BOOK3S
case OP_TRAP_64:
+ kvmppc_core_queue_program(vcpu, SRR1_PROGTRAP);
#else
- vcpu->arch.esr |= ESR_PTR;
+ kvmppc_core_queue_program(vcpu,
+ vcpu->arch.shared->esr | ESR_PTR);
#endif
- kvmppc_core_queue_program(vcpu);
advance = 0;
break;
case 31:
switch (get_xop(inst)) {
+ case OP_31_XOP_TRAP:
+#ifdef CONFIG_64BIT
+ case OP_31_XOP_TRAP_64:
+#endif
+#ifdef CONFIG_PPC_BOOK3S
+ kvmppc_core_queue_program(vcpu, SRR1_PROGTRAP);
+#else
+ kvmppc_core_queue_program(vcpu,
+ vcpu->arch.shared->esr | ESR_PTR);
+#endif
+ advance = 0;
+ break;
case OP_31_XOP_LWZX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
break;
case OP_31_XOP_LBZX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
break;
+ case OP_31_XOP_LBZUX:
+ emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
+ break;
+
case OP_31_XOP_STWX:
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
- vcpu->arch.gpr[rs],
+ kvmppc_get_gpr(vcpu, rs),
4, 1);
break;
case OP_31_XOP_STBX:
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
- vcpu->arch.gpr[rs],
+ kvmppc_get_gpr(vcpu, rs),
1, 1);
break;
case OP_31_XOP_STBUX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
- ea = vcpu->arch.gpr[rb];
- if (ra)
- ea += vcpu->arch.gpr[ra];
-
emulated = kvmppc_handle_store(run, vcpu,
- vcpu->arch.gpr[rs],
+ kvmppc_get_gpr(vcpu, rs),
1, 1);
- vcpu->arch.gpr[rs] = ea;
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
+ break;
+
+ case OP_31_XOP_LHAX:
+ emulated = kvmppc_handle_loads(run, vcpu, rt, 2, 1);
break;
case OP_31_XOP_LHZX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
break;
case OP_31_XOP_LHZUX:
- rt = get_rt(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
- ea = vcpu->arch.gpr[rb];
- if (ra)
- ea += vcpu->arch.gpr[ra];
-
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
- vcpu->arch.gpr[ra] = ea;
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_31_XOP_MFSPR:
- sprn = get_sprn(inst);
- rt = get_rt(inst);
-
- switch (sprn) {
- case SPRN_SRR0:
- vcpu->arch.gpr[rt] = vcpu->arch.srr0; break;
- case SPRN_SRR1:
- vcpu->arch.gpr[rt] = vcpu->arch.srr1; break;
- case SPRN_PVR:
- vcpu->arch.gpr[rt] = vcpu->arch.pvr; break;
- case SPRN_PIR:
- vcpu->arch.gpr[rt] = vcpu->vcpu_id; break;
- case SPRN_MSSSR0:
- vcpu->arch.gpr[rt] = 0; break;
-
- /* Note: mftb and TBRL/TBWL are user-accessible, so
- * the guest can always access the real TB anyways.
- * In fact, we probably will never see these traps. */
- case SPRN_TBWL:
- vcpu->arch.gpr[rt] = get_tb() >> 32; break;
- case SPRN_TBWU:
- vcpu->arch.gpr[rt] = get_tb(); break;
-
- case SPRN_SPRG0:
- vcpu->arch.gpr[rt] = vcpu->arch.sprg0; break;
- case SPRN_SPRG1:
- vcpu->arch.gpr[rt] = vcpu->arch.sprg1; break;
- case SPRN_SPRG2:
- vcpu->arch.gpr[rt] = vcpu->arch.sprg2; break;
- case SPRN_SPRG3:
- vcpu->arch.gpr[rt] = vcpu->arch.sprg3; break;
- /* Note: SPRG4-7 are user-readable, so we don't get
- * a trap. */
-
- case SPRN_DEC:
- {
- u64 jd = get_tb() - vcpu->arch.dec_jiffies;
- vcpu->arch.gpr[rt] = vcpu->arch.dec - jd;
- pr_debug(KERN_INFO "mfDEC: %x - %llx = %lx\n", vcpu->arch.dec, jd, vcpu->arch.gpr[rt]);
- break;
- }
- default:
- 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;
- }
+ emulated = kvmppc_emulate_mfspr(vcpu, sprn, rt);
break;
case OP_31_XOP_STHX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_store(run, vcpu,
- vcpu->arch.gpr[rs],
+ kvmppc_get_gpr(vcpu, rs),
2, 1);
break;
case OP_31_XOP_STHUX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
- ea = vcpu->arch.gpr[rb];
- if (ra)
- ea += vcpu->arch.gpr[ra];
-
emulated = kvmppc_handle_store(run, vcpu,
- vcpu->arch.gpr[rs],
+ kvmppc_get_gpr(vcpu, rs),
2, 1);
- vcpu->arch.gpr[ra] = ea;
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_31_XOP_MTSPR:
- sprn = get_sprn(inst);
- rs = get_rs(inst);
- switch (sprn) {
- case SPRN_SRR0:
- vcpu->arch.srr0 = vcpu->arch.gpr[rs]; break;
- case SPRN_SRR1:
- vcpu->arch.srr1 = vcpu->arch.gpr[rs]; break;
-
- /* XXX We need to context-switch the timebase for
- * watchdog and FIT. */
- case SPRN_TBWL: break;
- case SPRN_TBWU: break;
-
- case SPRN_MSSSR0: break;
-
- case SPRN_DEC:
- vcpu->arch.dec = vcpu->arch.gpr[rs];
- kvmppc_emulate_dec(vcpu);
- break;
-
- case SPRN_SPRG0:
- vcpu->arch.sprg0 = vcpu->arch.gpr[rs]; break;
- case SPRN_SPRG1:
- vcpu->arch.sprg1 = vcpu->arch.gpr[rs]; break;
- case SPRN_SPRG2:
- vcpu->arch.sprg2 = vcpu->arch.gpr[rs]; break;
- case SPRN_SPRG3:
- vcpu->arch.sprg3 = vcpu->arch.gpr[rs]; break;
-
- default:
- emulated = kvmppc_core_emulate_mtspr(vcpu, sprn, rs);
- if (emulated == EMULATE_FAIL)
- printk("mtspr: unknown spr %x\n", sprn);
- break;
- }
+ emulated = kvmppc_emulate_mtspr(vcpu, sprn, rs);
break;
+ case OP_31_XOP_DCBST:
+ case OP_31_XOP_DCBF:
case OP_31_XOP_DCBI:
/* Do nothing. The guest is performing dcbi because
* hardware DMA is not snooped by the dcache, but
@@ -335,7 +341,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_31_XOP_LWBRX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 0);
break;
@@ -343,27 +348,18 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_31_XOP_STWBRX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_store(run, vcpu,
- vcpu->arch.gpr[rs],
+ kvmppc_get_gpr(vcpu, rs),
4, 0);
break;
case OP_31_XOP_LHBRX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 0);
break;
case OP_31_XOP_STHBRX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_store(run, vcpu,
- vcpu->arch.gpr[rs],
+ kvmppc_get_gpr(vcpu, rs),
2, 0);
break;
@@ -374,81 +370,92 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_LWZ:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
break;
- case OP_LWZU:
- ra = get_ra(inst);
+ /* TBD: Add support for other 64 bit load variants like ldu, ldux, ldx etc. */
+ case OP_LD:
rt = get_rt(inst);
+ emulated = kvmppc_handle_load(run, vcpu, rt, 8, 1);
+ break;
+
+ case OP_LWZU:
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
- vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed;
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_LBZ:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
break;
case OP_LBZU:
- ra = get_ra(inst);
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
- vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed;
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_STW:
- rs = get_rs(inst);
- emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
+ emulated = kvmppc_handle_store(run, vcpu,
+ kvmppc_get_gpr(vcpu, rs),
4, 1);
break;
- case OP_STWU:
- ra = get_ra(inst);
+ /* TBD: Add support for other 64 bit store variants like stdu, stdux, stdx etc. */
+ case OP_STD:
rs = get_rs(inst);
- emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
+ emulated = kvmppc_handle_store(run, vcpu,
+ kvmppc_get_gpr(vcpu, rs),
+ 8, 1);
+ break;
+
+ case OP_STWU:
+ emulated = kvmppc_handle_store(run, vcpu,
+ kvmppc_get_gpr(vcpu, rs),
4, 1);
- vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed;
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_STB:
- rs = get_rs(inst);
- emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
+ emulated = kvmppc_handle_store(run, vcpu,
+ kvmppc_get_gpr(vcpu, rs),
1, 1);
break;
case OP_STBU:
- ra = get_ra(inst);
- rs = get_rs(inst);
- emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
+ emulated = kvmppc_handle_store(run, vcpu,
+ kvmppc_get_gpr(vcpu, rs),
1, 1);
- vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed;
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_LHZ:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
break;
case OP_LHZU:
- ra = get_ra(inst);
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
- vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed;
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
+ break;
+
+ case OP_LHA:
+ emulated = kvmppc_handle_loads(run, vcpu, rt, 2, 1);
+ break;
+
+ case OP_LHAU:
+ emulated = kvmppc_handle_loads(run, vcpu, rt, 2, 1);
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_STH:
- rs = get_rs(inst);
- emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
+ emulated = kvmppc_handle_store(run, vcpu,
+ kvmppc_get_gpr(vcpu, rs),
2, 1);
break;
case OP_STHU:
- ra = get_ra(inst);
- rs = get_rs(inst);
- emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
+ emulated = kvmppc_handle_store(run, vcpu,
+ kvmppc_get_gpr(vcpu, rs),
2, 1);
- vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed;
+ kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
default:
@@ -456,18 +463,24 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
}
if (emulated == EMULATE_FAIL) {
- emulated = kvmppc_core_emulate_op(run, vcpu, inst, &advance);
- if (emulated == EMULATE_FAIL) {
+ emulated = vcpu->kvm->arch.kvm_ops->emulate_op(run, vcpu, inst,
+ &advance);
+ if (emulated == EMULATE_AGAIN) {
+ advance = 0;
+ } else 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));
+ kvmppc_core_queue_program(vcpu, 0);
}
}
- trace_kvm_ppc_instr(inst, vcpu->arch.pc, emulated);
+ trace_kvm_ppc_instr(inst, kvmppc_get_pc(vcpu), emulated);
+ /* Advance past emulated instruction. */
if (advance)
- vcpu->arch.pc += 4; /* Advance past emulated instruction. */
+ kvmppc_set_pc(vcpu, kvmppc_get_pc(vcpu) + 4);
return emulated;
}
+EXPORT_SYMBOL_GPL(kvmppc_emulate_instruction);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 07:15:38 +0000