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Diffstat (limited to 'arch/powerpc/kvm/emulate.c')
-rw-r--r--arch/powerpc/kvm/emulate.c90
1 files changed, 24 insertions, 66 deletions
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 9d9cddc5b34..da86d9ba347 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -30,52 +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_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;
@@ -139,10 +97,10 @@ static int kvmppc_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
switch (sprn) {
case SPRN_SRR0:
- vcpu->arch.shared->srr0 = spr_val;
+ kvmppc_set_srr0(vcpu, spr_val);
break;
case SPRN_SRR1:
- vcpu->arch.shared->srr1 = spr_val;
+ kvmppc_set_srr1(vcpu, spr_val);
break;
/* XXX We need to context-switch the timebase for
@@ -150,29 +108,30 @@ static int kvmppc_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
case SPRN_TBWL: break;
case SPRN_TBWU: break;
- case SPRN_MSSSR0: break;
-
case SPRN_DEC:
vcpu->arch.dec = spr_val;
kvmppc_emulate_dec(vcpu);
break;
case SPRN_SPRG0:
- vcpu->arch.shared->sprg0 = spr_val;
+ kvmppc_set_sprg0(vcpu, spr_val);
break;
case SPRN_SPRG1:
- vcpu->arch.shared->sprg1 = spr_val;
+ kvmppc_set_sprg1(vcpu, spr_val);
break;
case SPRN_SPRG2:
- vcpu->arch.shared->sprg2 = spr_val;
+ kvmppc_set_sprg2(vcpu, spr_val);
break;
case SPRN_SPRG3:
- vcpu->arch.shared->sprg3 = spr_val;
+ kvmppc_set_sprg3(vcpu, spr_val);
break;
+ /* PIR can legally be written, but we ignore it */
+ case SPRN_PIR: break;
+
default:
- emulated = kvmppc_core_emulate_mtspr(vcpu, sprn,
- spr_val);
+ 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);
@@ -191,10 +150,10 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
switch (sprn) {
case SPRN_SRR0:
- spr_val = vcpu->arch.shared->srr0;
+ spr_val = kvmppc_get_srr0(vcpu);
break;
case SPRN_SRR1:
- spr_val = vcpu->arch.shared->srr1;
+ spr_val = kvmppc_get_srr1(vcpu);
break;
case SPRN_PVR:
spr_val = vcpu->arch.pvr;
@@ -202,9 +161,6 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
case SPRN_PIR:
spr_val = vcpu->vcpu_id;
break;
- case SPRN_MSSSR0:
- spr_val = 0;
- break;
/* Note: mftb and TBRL/TBWL are user-accessible, so
* the guest can always access the real TB anyways.
@@ -217,16 +173,16 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
break;
case SPRN_SPRG0:
- spr_val = vcpu->arch.shared->sprg0;
+ spr_val = kvmppc_get_sprg0(vcpu);
break;
case SPRN_SPRG1:
- spr_val = vcpu->arch.shared->sprg1;
+ spr_val = kvmppc_get_sprg1(vcpu);
break;
case SPRN_SPRG2:
- spr_val = vcpu->arch.shared->sprg2;
+ spr_val = kvmppc_get_sprg2(vcpu);
break;
case SPRN_SPRG3:
- spr_val = vcpu->arch.shared->sprg3;
+ spr_val = kvmppc_get_sprg3(vcpu);
break;
/* Note: SPRG4-7 are user-readable, so we don't get
* a trap. */
@@ -235,8 +191,8 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
spr_val = kvmppc_get_dec(vcpu, get_tb());
break;
default:
- emulated = kvmppc_core_emulate_mfspr(vcpu, sprn,
- &spr_val);
+ 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);
@@ -263,7 +219,6 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
* 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. */
@@ -375,6 +330,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
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
@@ -507,7 +463,8 @@ 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);
+ emulated = vcpu->kvm->arch.kvm_ops->emulate_op(run, vcpu, inst,
+ &advance);
if (emulated == EMULATE_AGAIN) {
advance = 0;
} else if (emulated == EMULATE_FAIL) {
@@ -526,3 +483,4 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
return emulated;
}
+EXPORT_SYMBOL_GPL(kvmppc_emulate_instruction);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 12:17:51 +0000