KVM: PPC: Name generic 64-bit code generic
We have quite some code that can be used by Book3S_32 and Book3S_64 alike, so let's call it "Book3S" instead of "Book3S_64", so we can later on use it from the 32 bit port too. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Alexander Graf
committed by
Avi Kivity
Avi Kivity
parent
77a1a71570
commit
2191d657c9
566
arch/powerpc/kvm/book3s_emulate.c
Normal file
566
arch/powerpc/kvm/book3s_emulate.c
Normal file
@@ -0,0 +1,566 @@
|
||||
/*
|
||||
* 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 SUSE Linux Products GmbH 2009
|
||||
*
|
||||
* Authors: Alexander Graf <agraf@suse.de>
|
||||
*/
|
||||
|
||||
#include <asm/kvm_ppc.h>
|
||||
#include <asm/disassemble.h>
|
||||
#include <asm/kvm_book3s.h>
|
||||
#include <asm/reg.h>
|
||||
|
||||
#define OP_19_XOP_RFID 18
|
||||
#define OP_19_XOP_RFI 50
|
||||
|
||||
#define OP_31_XOP_MFMSR 83
|
||||
#define OP_31_XOP_MTMSR 146
|
||||
#define OP_31_XOP_MTMSRD 178
|
||||
#define OP_31_XOP_MTSR 210
|
||||
#define OP_31_XOP_MTSRIN 242
|
||||
#define OP_31_XOP_TLBIEL 274
|
||||
#define OP_31_XOP_TLBIE 306
|
||||
#define OP_31_XOP_SLBMTE 402
|
||||
#define OP_31_XOP_SLBIE 434
|
||||
#define OP_31_XOP_SLBIA 498
|
||||
#define OP_31_XOP_MFSR 595
|
||||
#define OP_31_XOP_MFSRIN 659
|
||||
#define OP_31_XOP_DCBA 758
|
||||
#define OP_31_XOP_SLBMFEV 851
|
||||
#define OP_31_XOP_EIOIO 854
|
||||
#define OP_31_XOP_SLBMFEE 915
|
||||
|
||||
/* DCBZ is actually 1014, but we patch it to 1010 so we get a trap */
|
||||
#define OP_31_XOP_DCBZ 1010
|
||||
|
||||
#define OP_LFS 48
|
||||
#define OP_LFD 50
|
||||
#define OP_STFS 52
|
||||
#define OP_STFD 54
|
||||
|
||||
#define SPRN_GQR0 912
|
||||
#define SPRN_GQR1 913
|
||||
#define SPRN_GQR2 914
|
||||
#define SPRN_GQR3 915
|
||||
#define SPRN_GQR4 916
|
||||
#define SPRN_GQR5 917
|
||||
#define SPRN_GQR6 918
|
||||
#define SPRN_GQR7 919
|
||||
|
||||
int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
|
||||
unsigned int inst, int *advance)
|
||||
{
|
||||
int emulated = EMULATE_DONE;
|
||||
|
||||
switch (get_op(inst)) {
|
||||
case 19:
|
||||
switch (get_xop(inst)) {
|
||||
case OP_19_XOP_RFID:
|
||||
case OP_19_XOP_RFI:
|
||||
vcpu->arch.pc = vcpu->arch.srr0;
|
||||
kvmppc_set_msr(vcpu, vcpu->arch.srr1);
|
||||
*advance = 0;
|
||||
break;
|
||||
|
||||
default:
|
||||
emulated = EMULATE_FAIL;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case 31:
|
||||
switch (get_xop(inst)) {
|
||||
case OP_31_XOP_MFMSR:
|
||||
kvmppc_set_gpr(vcpu, get_rt(inst), vcpu->arch.msr);
|
||||
break;
|
||||
case OP_31_XOP_MTMSRD:
|
||||
{
|
||||
ulong rs = kvmppc_get_gpr(vcpu, get_rs(inst));
|
||||
if (inst & 0x10000) {
|
||||
vcpu->arch.msr &= ~(MSR_RI | MSR_EE);
|
||||
vcpu->arch.msr |= rs & (MSR_RI | MSR_EE);
|
||||
} else
|
||||
kvmppc_set_msr(vcpu, rs);
|
||||
break;
|
||||
}
|
||||
case OP_31_XOP_MTMSR:
|
||||
kvmppc_set_msr(vcpu, kvmppc_get_gpr(vcpu, get_rs(inst)));
|
||||
break;
|
||||
case OP_31_XOP_MFSR:
|
||||
{
|
||||
int srnum;
|
||||
|
||||
srnum = kvmppc_get_field(inst, 12 + 32, 15 + 32);
|
||||
if (vcpu->arch.mmu.mfsrin) {
|
||||
u32 sr;
|
||||
sr = vcpu->arch.mmu.mfsrin(vcpu, srnum);
|
||||
kvmppc_set_gpr(vcpu, get_rt(inst), sr);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case OP_31_XOP_MFSRIN:
|
||||
{
|
||||
int srnum;
|
||||
|
||||
srnum = (kvmppc_get_gpr(vcpu, get_rb(inst)) >> 28) & 0xf;
|
||||
if (vcpu->arch.mmu.mfsrin) {
|
||||
u32 sr;
|
||||
sr = vcpu->arch.mmu.mfsrin(vcpu, srnum);
|
||||
kvmppc_set_gpr(vcpu, get_rt(inst), sr);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case OP_31_XOP_MTSR:
|
||||
vcpu->arch.mmu.mtsrin(vcpu,
|
||||
(inst >> 16) & 0xf,
|
||||
kvmppc_get_gpr(vcpu, get_rs(inst)));
|
||||
break;
|
||||
case OP_31_XOP_MTSRIN:
|
||||
vcpu->arch.mmu.mtsrin(vcpu,
|
||||
(kvmppc_get_gpr(vcpu, get_rb(inst)) >> 28) & 0xf,
|
||||
kvmppc_get_gpr(vcpu, get_rs(inst)));
|
||||
break;
|
||||
case OP_31_XOP_TLBIE:
|
||||
case OP_31_XOP_TLBIEL:
|
||||
{
|
||||
bool large = (inst & 0x00200000) ? true : false;
|
||||
ulong addr = kvmppc_get_gpr(vcpu, get_rb(inst));
|
||||
vcpu->arch.mmu.tlbie(vcpu, addr, large);
|
||||
break;
|
||||
}
|
||||
case OP_31_XOP_EIOIO:
|
||||
break;
|
||||
case OP_31_XOP_SLBMTE:
|
||||
if (!vcpu->arch.mmu.slbmte)
|
||||
return EMULATE_FAIL;
|
||||
|
||||
vcpu->arch.mmu.slbmte(vcpu,
|
||||
kvmppc_get_gpr(vcpu, get_rs(inst)),
|
||||
kvmppc_get_gpr(vcpu, get_rb(inst)));
|
||||
break;
|
||||
case OP_31_XOP_SLBIE:
|
||||
if (!vcpu->arch.mmu.slbie)
|
||||
return EMULATE_FAIL;
|
||||
|
||||
vcpu->arch.mmu.slbie(vcpu,
|
||||
kvmppc_get_gpr(vcpu, get_rb(inst)));
|
||||
break;
|
||||
case OP_31_XOP_SLBIA:
|
||||
if (!vcpu->arch.mmu.slbia)
|
||||
return EMULATE_FAIL;
|
||||
|
||||
vcpu->arch.mmu.slbia(vcpu);
|
||||
break;
|
||||
case OP_31_XOP_SLBMFEE:
|
||||
if (!vcpu->arch.mmu.slbmfee) {
|
||||
emulated = EMULATE_FAIL;
|
||||
} else {
|
||||
ulong t, rb;
|
||||
|
||||
rb = kvmppc_get_gpr(vcpu, get_rb(inst));
|
||||
t = vcpu->arch.mmu.slbmfee(vcpu, rb);
|
||||
kvmppc_set_gpr(vcpu, get_rt(inst), t);
|
||||
}
|
||||
break;
|
||||
case OP_31_XOP_SLBMFEV:
|
||||
if (!vcpu->arch.mmu.slbmfev) {
|
||||
emulated = EMULATE_FAIL;
|
||||
} else {
|
||||
ulong t, rb;
|
||||
|
||||
rb = kvmppc_get_gpr(vcpu, get_rb(inst));
|
||||
t = vcpu->arch.mmu.slbmfev(vcpu, rb);
|
||||
kvmppc_set_gpr(vcpu, get_rt(inst), t);
|
||||
}
|
||||
break;
|
||||
case OP_31_XOP_DCBA:
|
||||
/* Gets treated as NOP */
|
||||
break;
|
||||
case OP_31_XOP_DCBZ:
|
||||
{
|
||||
ulong rb = kvmppc_get_gpr(vcpu, get_rb(inst));
|
||||
ulong ra = 0;
|
||||
ulong addr, vaddr;
|
||||
u32 zeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
|
||||
u32 dsisr;
|
||||
int r;
|
||||
|
||||
if (get_ra(inst))
|
||||
ra = kvmppc_get_gpr(vcpu, get_ra(inst));
|
||||
|
||||
addr = (ra + rb) & ~31ULL;
|
||||
if (!(vcpu->arch.msr & MSR_SF))
|
||||
addr &= 0xffffffff;
|
||||
vaddr = addr;
|
||||
|
||||
r = kvmppc_st(vcpu, &addr, 32, zeros, true);
|
||||
if ((r == -ENOENT) || (r == -EPERM)) {
|
||||
*advance = 0;
|
||||
vcpu->arch.dear = vaddr;
|
||||
vcpu->arch.fault_dear = vaddr;
|
||||
|
||||
dsisr = DSISR_ISSTORE;
|
||||
if (r == -ENOENT)
|
||||
dsisr |= DSISR_NOHPTE;
|
||||
else if (r == -EPERM)
|
||||
dsisr |= DSISR_PROTFAULT;
|
||||
|
||||
to_book3s(vcpu)->dsisr = dsisr;
|
||||
vcpu->arch.fault_dsisr = dsisr;
|
||||
|
||||
kvmppc_book3s_queue_irqprio(vcpu,
|
||||
BOOK3S_INTERRUPT_DATA_STORAGE);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
default:
|
||||
emulated = EMULATE_FAIL;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
emulated = EMULATE_FAIL;
|
||||
}
|
||||
|
||||
if (emulated == EMULATE_FAIL)
|
||||
emulated = kvmppc_emulate_paired_single(run, vcpu);
|
||||
|
||||
return emulated;
|
||||
}
|
||||
|
||||
void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, bool upper,
|
||||
u32 val)
|
||||
{
|
||||
if (upper) {
|
||||
/* Upper BAT */
|
||||
u32 bl = (val >> 2) & 0x7ff;
|
||||
bat->bepi_mask = (~bl << 17);
|
||||
bat->bepi = val & 0xfffe0000;
|
||||
bat->vs = (val & 2) ? 1 : 0;
|
||||
bat->vp = (val & 1) ? 1 : 0;
|
||||
bat->raw = (bat->raw & 0xffffffff00000000ULL) | val;
|
||||
} else {
|
||||
/* Lower BAT */
|
||||
bat->brpn = val & 0xfffe0000;
|
||||
bat->wimg = (val >> 3) & 0xf;
|
||||
bat->pp = val & 3;
|
||||
bat->raw = (bat->raw & 0x00000000ffffffffULL) | ((u64)val << 32);
|
||||
}
|
||||
}
|
||||
|
||||
static u32 kvmppc_read_bat(struct kvm_vcpu *vcpu, int sprn)
|
||||
{
|
||||
struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
|
||||
struct kvmppc_bat *bat;
|
||||
|
||||
switch (sprn) {
|
||||
case SPRN_IBAT0U ... SPRN_IBAT3L:
|
||||
bat = &vcpu_book3s->ibat[(sprn - SPRN_IBAT0U) / 2];
|
||||
break;
|
||||
case SPRN_IBAT4U ... SPRN_IBAT7L:
|
||||
bat = &vcpu_book3s->ibat[4 + ((sprn - SPRN_IBAT4U) / 2)];
|
||||
break;
|
||||
case SPRN_DBAT0U ... SPRN_DBAT3L:
|
||||
bat = &vcpu_book3s->dbat[(sprn - SPRN_DBAT0U) / 2];
|
||||
break;
|
||||
case SPRN_DBAT4U ... SPRN_DBAT7L:
|
||||
bat = &vcpu_book3s->dbat[4 + ((sprn - SPRN_DBAT4U) / 2)];
|
||||
break;
|
||||
default:
|
||||
BUG();
|
||||
}
|
||||
|
||||
if (sprn % 2)
|
||||
return bat->raw >> 32;
|
||||
else
|
||||
return bat->raw;
|
||||
}
|
||||
|
||||
static void kvmppc_write_bat(struct kvm_vcpu *vcpu, int sprn, u32 val)
|
||||
{
|
||||
struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
|
||||
struct kvmppc_bat *bat;
|
||||
|
||||
switch (sprn) {
|
||||
case SPRN_IBAT0U ... SPRN_IBAT3L:
|
||||
bat = &vcpu_book3s->ibat[(sprn - SPRN_IBAT0U) / 2];
|
||||
break;
|
||||
case SPRN_IBAT4U ... SPRN_IBAT7L:
|
||||
bat = &vcpu_book3s->ibat[4 + ((sprn - SPRN_IBAT4U) / 2)];
|
||||
break;
|
||||
case SPRN_DBAT0U ... SPRN_DBAT3L:
|
||||
bat = &vcpu_book3s->dbat[(sprn - SPRN_DBAT0U) / 2];
|
||||
break;
|
||||
case SPRN_DBAT4U ... SPRN_DBAT7L:
|
||||
bat = &vcpu_book3s->dbat[4 + ((sprn - SPRN_DBAT4U) / 2)];
|
||||
break;
|
||||
default:
|
||||
BUG();
|
||||
}
|
||||
|
||||
kvmppc_set_bat(vcpu, bat, !(sprn % 2), val);
|
||||
}
|
||||
|
||||
int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
|
||||
{
|
||||
int emulated = EMULATE_DONE;
|
||||
ulong spr_val = kvmppc_get_gpr(vcpu, rs);
|
||||
|
||||
switch (sprn) {
|
||||
case SPRN_SDR1:
|
||||
to_book3s(vcpu)->sdr1 = spr_val;
|
||||
break;
|
||||
case SPRN_DSISR:
|
||||
to_book3s(vcpu)->dsisr = spr_val;
|
||||
break;
|
||||
case SPRN_DAR:
|
||||
vcpu->arch.dear = spr_val;
|
||||
break;
|
||||
case SPRN_HIOR:
|
||||
to_book3s(vcpu)->hior = spr_val;
|
||||
break;
|
||||
case SPRN_IBAT0U ... SPRN_IBAT3L:
|
||||
case SPRN_IBAT4U ... SPRN_IBAT7L:
|
||||
case SPRN_DBAT0U ... SPRN_DBAT3L:
|
||||
case SPRN_DBAT4U ... SPRN_DBAT7L:
|
||||
kvmppc_write_bat(vcpu, sprn, (u32)spr_val);
|
||||
/* BAT writes happen so rarely that we're ok to flush
|
||||
* everything here */
|
||||
kvmppc_mmu_pte_flush(vcpu, 0, 0);
|
||||
kvmppc_mmu_flush_segments(vcpu);
|
||||
break;
|
||||
case SPRN_HID0:
|
||||
to_book3s(vcpu)->hid[0] = spr_val;
|
||||
break;
|
||||
case SPRN_HID1:
|
||||
to_book3s(vcpu)->hid[1] = spr_val;
|
||||
break;
|
||||
case SPRN_HID2:
|
||||
to_book3s(vcpu)->hid[2] = spr_val;
|
||||
break;
|
||||
case SPRN_HID2_GEKKO:
|
||||
to_book3s(vcpu)->hid[2] = spr_val;
|
||||
/* HID2.PSE controls paired single on gekko */
|
||||
switch (vcpu->arch.pvr) {
|
||||
case 0x00080200: /* lonestar 2.0 */
|
||||
case 0x00088202: /* lonestar 2.2 */
|
||||
case 0x70000100: /* gekko 1.0 */
|
||||
case 0x00080100: /* gekko 2.0 */
|
||||
case 0x00083203: /* gekko 2.3a */
|
||||
case 0x00083213: /* gekko 2.3b */
|
||||
case 0x00083204: /* gekko 2.4 */
|
||||
case 0x00083214: /* gekko 2.4e (8SE) - retail HW2 */
|
||||
if (spr_val & (1 << 29)) { /* HID2.PSE */
|
||||
vcpu->arch.hflags |= BOOK3S_HFLAG_PAIRED_SINGLE;
|
||||
kvmppc_giveup_ext(vcpu, MSR_FP);
|
||||
} else {
|
||||
vcpu->arch.hflags &= ~BOOK3S_HFLAG_PAIRED_SINGLE;
|
||||
}
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case SPRN_HID4:
|
||||
case SPRN_HID4_GEKKO:
|
||||
to_book3s(vcpu)->hid[4] = spr_val;
|
||||
break;
|
||||
case SPRN_HID5:
|
||||
to_book3s(vcpu)->hid[5] = spr_val;
|
||||
/* guest HID5 set can change is_dcbz32 */
|
||||
if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
|
||||
(mfmsr() & MSR_HV))
|
||||
vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
|
||||
break;
|
||||
case SPRN_GQR0:
|
||||
case SPRN_GQR1:
|
||||
case SPRN_GQR2:
|
||||
case SPRN_GQR3:
|
||||
case SPRN_GQR4:
|
||||
case SPRN_GQR5:
|
||||
case SPRN_GQR6:
|
||||
case SPRN_GQR7:
|
||||
to_book3s(vcpu)->gqr[sprn - SPRN_GQR0] = spr_val;
|
||||
break;
|
||||
case SPRN_ICTC:
|
||||
case SPRN_THRM1:
|
||||
case SPRN_THRM2:
|
||||
case SPRN_THRM3:
|
||||
case SPRN_CTRLF:
|
||||
case SPRN_CTRLT:
|
||||
case SPRN_L2CR:
|
||||
case SPRN_MMCR0_GEKKO:
|
||||
case SPRN_MMCR1_GEKKO:
|
||||
case SPRN_PMC1_GEKKO:
|
||||
case SPRN_PMC2_GEKKO:
|
||||
case SPRN_PMC3_GEKKO:
|
||||
case SPRN_PMC4_GEKKO:
|
||||
case SPRN_WPAR_GEKKO:
|
||||
break;
|
||||
default:
|
||||
printk(KERN_INFO "KVM: invalid SPR write: %d\n", sprn);
|
||||
#ifndef DEBUG_SPR
|
||||
emulated = EMULATE_FAIL;
|
||||
#endif
|
||||
break;
|
||||
}
|
||||
|
||||
return emulated;
|
||||
}
|
||||
|
||||
int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
|
||||
{
|
||||
int emulated = EMULATE_DONE;
|
||||
|
||||
switch (sprn) {
|
||||
case SPRN_IBAT0U ... SPRN_IBAT3L:
|
||||
case SPRN_IBAT4U ... SPRN_IBAT7L:
|
||||
case SPRN_DBAT0U ... SPRN_DBAT3L:
|
||||
case SPRN_DBAT4U ... SPRN_DBAT7L:
|
||||
kvmppc_set_gpr(vcpu, rt, kvmppc_read_bat(vcpu, sprn));
|
||||
break;
|
||||
case SPRN_SDR1:
|
||||
kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->sdr1);
|
||||
break;
|
||||
case SPRN_DSISR:
|
||||
kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->dsisr);
|
||||
break;
|
||||
case SPRN_DAR:
|
||||
kvmppc_set_gpr(vcpu, rt, vcpu->arch.dear);
|
||||
break;
|
||||
case SPRN_HIOR:
|
||||
kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hior);
|
||||
break;
|
||||
case SPRN_HID0:
|
||||
kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[0]);
|
||||
break;
|
||||
case SPRN_HID1:
|
||||
kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[1]);
|
||||
break;
|
||||
case SPRN_HID2:
|
||||
case SPRN_HID2_GEKKO:
|
||||
kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[2]);
|
||||
break;
|
||||
case SPRN_HID4:
|
||||
case SPRN_HID4_GEKKO:
|
||||
kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[4]);
|
||||
break;
|
||||
case SPRN_HID5:
|
||||
kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[5]);
|
||||
break;
|
||||
case SPRN_GQR0:
|
||||
case SPRN_GQR1:
|
||||
case SPRN_GQR2:
|
||||
case SPRN_GQR3:
|
||||
case SPRN_GQR4:
|
||||
case SPRN_GQR5:
|
||||
case SPRN_GQR6:
|
||||
case SPRN_GQR7:
|
||||
kvmppc_set_gpr(vcpu, rt,
|
||||
to_book3s(vcpu)->gqr[sprn - SPRN_GQR0]);
|
||||
break;
|
||||
case SPRN_THRM1:
|
||||
case SPRN_THRM2:
|
||||
case SPRN_THRM3:
|
||||
case SPRN_CTRLF:
|
||||
case SPRN_CTRLT:
|
||||
case SPRN_L2CR:
|
||||
case SPRN_MMCR0_GEKKO:
|
||||
case SPRN_MMCR1_GEKKO:
|
||||
case SPRN_PMC1_GEKKO:
|
||||
case SPRN_PMC2_GEKKO:
|
||||
case SPRN_PMC3_GEKKO:
|
||||
case SPRN_PMC4_GEKKO:
|
||||
case SPRN_WPAR_GEKKO:
|
||||
kvmppc_set_gpr(vcpu, rt, 0);
|
||||
break;
|
||||
default:
|
||||
printk(KERN_INFO "KVM: invalid SPR read: %d\n", sprn);
|
||||
#ifndef DEBUG_SPR
|
||||
emulated = EMULATE_FAIL;
|
||||
#endif
|
||||
break;
|
||||
}
|
||||
|
||||
return emulated;
|
||||
}
|
||||
|
||||
u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst)
|
||||
{
|
||||
u32 dsisr = 0;
|
||||
|
||||
/*
|
||||
* This is what the spec says about DSISR bits (not mentioned = 0):
|
||||
*
|
||||
* 12:13 [DS] Set to bits 30:31
|
||||
* 15:16 [X] Set to bits 29:30
|
||||
* 17 [X] Set to bit 25
|
||||
* [D/DS] Set to bit 5
|
||||
* 18:21 [X] Set to bits 21:24
|
||||
* [D/DS] Set to bits 1:4
|
||||
* 22:26 Set to bits 6:10 (RT/RS/FRT/FRS)
|
||||
* 27:31 Set to bits 11:15 (RA)
|
||||
*/
|
||||
|
||||
switch (get_op(inst)) {
|
||||
/* D-form */
|
||||
case OP_LFS:
|
||||
case OP_LFD:
|
||||
case OP_STFD:
|
||||
case OP_STFS:
|
||||
dsisr |= (inst >> 12) & 0x4000; /* bit 17 */
|
||||
dsisr |= (inst >> 17) & 0x3c00; /* bits 18:21 */
|
||||
break;
|
||||
/* X-form */
|
||||
case 31:
|
||||
dsisr |= (inst << 14) & 0x18000; /* bits 15:16 */
|
||||
dsisr |= (inst << 8) & 0x04000; /* bit 17 */
|
||||
dsisr |= (inst << 3) & 0x03c00; /* bits 18:21 */
|
||||
break;
|
||||
default:
|
||||
printk(KERN_INFO "KVM: Unaligned instruction 0x%x\n", inst);
|
||||
break;
|
||||
}
|
||||
|
||||
dsisr |= (inst >> 16) & 0x03ff; /* bits 22:31 */
|
||||
|
||||
return dsisr;
|
||||
}
|
||||
|
||||
ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst)
|
||||
{
|
||||
ulong dar = 0;
|
||||
ulong ra;
|
||||
|
||||
switch (get_op(inst)) {
|
||||
case OP_LFS:
|
||||
case OP_LFD:
|
||||
case OP_STFD:
|
||||
case OP_STFS:
|
||||
ra = get_ra(inst);
|
||||
if (ra)
|
||||
dar = kvmppc_get_gpr(vcpu, ra);
|
||||
dar += (s32)((s16)inst);
|
||||
break;
|
||||
case 31:
|
||||
ra = get_ra(inst);
|
||||
if (ra)
|
||||
dar = kvmppc_get_gpr(vcpu, ra);
|
||||
dar += kvmppc_get_gpr(vcpu, get_rb(inst));
|
||||
break;
|
||||
default:
|
||||
printk(KERN_INFO "KVM: Unaligned instruction 0x%x\n", inst);
|
||||
break;
|
||||
}
|
||||
|
||||
return dar;
|
||||
}
|
||||
Reference in New Issue
Block a user