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-rw-r--r--arch/powerpc/kvm/44x.c72
-rw-r--r--arch/powerpc/kvm/44x_emulate.c217
-rw-r--r--arch/powerpc/kvm/44x_tlb.c39
-rw-r--r--arch/powerpc/kvm/44x_tlb.h9
-rw-r--r--arch/powerpc/kvm/Kconfig16
-rw-r--r--arch/powerpc/kvm/Makefile10
-rw-r--r--arch/powerpc/kvm/booke.c50
-rw-r--r--arch/powerpc/kvm/booke.h35
-rw-r--r--arch/powerpc/kvm/booke_emulate.c266
-rw-r--r--arch/powerpc/kvm/booke_interrupts.S5
-rw-r--r--arch/powerpc/kvm/e500.c169
-rw-r--r--arch/powerpc/kvm/e500_emulate.c202
-rw-r--r--arch/powerpc/kvm/e500_tlb.c757
-rw-r--r--arch/powerpc/kvm/e500_tlb.h185
-rw-r--r--arch/powerpc/kvm/emulate.c93
-rw-r--r--arch/powerpc/kvm/powerpc.c31
16 files changed, 1775 insertions, 381 deletions
diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
index a66bec57265..0cef809cec2 100644
--- a/arch/powerpc/kvm/44x.c
+++ b/arch/powerpc/kvm/44x.c
@@ -28,72 +28,6 @@
#include "44x_tlb.h"
-/* Note: clearing MSR[DE] just means that the debug interrupt will not be
- * delivered *immediately*. Instead, it simply sets the appropriate DBSR bits.
- * If those DBSR bits are still set when MSR[DE] is re-enabled, the interrupt
- * will be delivered as an "imprecise debug event" (which is indicated by
- * DBSR[IDE].
- */
-static void kvm44x_disable_debug_interrupts(void)
-{
- mtmsr(mfmsr() & ~MSR_DE);
-}
-
-void kvmppc_core_load_host_debugstate(struct kvm_vcpu *vcpu)
-{
- kvm44x_disable_debug_interrupts();
-
- mtspr(SPRN_IAC1, vcpu->arch.host_iac[0]);
- mtspr(SPRN_IAC2, vcpu->arch.host_iac[1]);
- mtspr(SPRN_IAC3, vcpu->arch.host_iac[2]);
- mtspr(SPRN_IAC4, vcpu->arch.host_iac[3]);
- mtspr(SPRN_DBCR1, vcpu->arch.host_dbcr1);
- mtspr(SPRN_DBCR2, vcpu->arch.host_dbcr2);
- mtspr(SPRN_DBCR0, vcpu->arch.host_dbcr0);
- mtmsr(vcpu->arch.host_msr);
-}
-
-void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
-{
- struct kvm_guest_debug *dbg = &vcpu->guest_debug;
- u32 dbcr0 = 0;
-
- vcpu->arch.host_msr = mfmsr();
- kvm44x_disable_debug_interrupts();
-
- /* Save host debug register state. */
- vcpu->arch.host_iac[0] = mfspr(SPRN_IAC1);
- vcpu->arch.host_iac[1] = mfspr(SPRN_IAC2);
- vcpu->arch.host_iac[2] = mfspr(SPRN_IAC3);
- vcpu->arch.host_iac[3] = mfspr(SPRN_IAC4);
- vcpu->arch.host_dbcr0 = mfspr(SPRN_DBCR0);
- vcpu->arch.host_dbcr1 = mfspr(SPRN_DBCR1);
- vcpu->arch.host_dbcr2 = mfspr(SPRN_DBCR2);
-
- /* set registers up for guest */
-
- if (dbg->bp[0]) {
- mtspr(SPRN_IAC1, dbg->bp[0]);
- dbcr0 |= DBCR0_IAC1 | DBCR0_IDM;
- }
- if (dbg->bp[1]) {
- mtspr(SPRN_IAC2, dbg->bp[1]);
- dbcr0 |= DBCR0_IAC2 | DBCR0_IDM;
- }
- if (dbg->bp[2]) {
- mtspr(SPRN_IAC3, dbg->bp[2]);
- dbcr0 |= DBCR0_IAC3 | DBCR0_IDM;
- }
- if (dbg->bp[3]) {
- mtspr(SPRN_IAC4, dbg->bp[3]);
- dbcr0 |= DBCR0_IAC4 | DBCR0_IDM;
- }
-
- mtspr(SPRN_DBCR0, dbcr0);
- mtspr(SPRN_DBCR1, 0);
- mtspr(SPRN_DBCR2, 0);
-}
-
void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
kvmppc_44x_tlb_load(vcpu);
@@ -149,8 +83,6 @@ int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
struct kvm_translation *tr)
{
- struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
- struct kvmppc_44x_tlbe *gtlbe;
int index;
gva_t eaddr;
u8 pid;
@@ -166,9 +98,7 @@ int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
return 0;
}
- gtlbe = &vcpu_44x->guest_tlb[index];
-
- tr->physical_address = tlb_xlate(gtlbe, eaddr);
+ tr->physical_address = kvmppc_mmu_xlate(vcpu, index, eaddr);
/* XXX what does "writeable" and "usermode" even mean? */
tr->valid = 1;
diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c
index 82489a743a6..61af58fcece 100644
--- a/arch/powerpc/kvm/44x_emulate.c
+++ b/arch/powerpc/kvm/44x_emulate.c
@@ -27,25 +27,12 @@
#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 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)
{
@@ -59,48 +46,9 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
int ws;
switch (get_op(inst)) {
- case OP_RFI:
- switch (get_xop(inst)) {
- case XOP_RFI:
- kvmppc_emul_rfi(vcpu);
- kvmppc_set_exit_type(vcpu, EMULATED_RFI_EXITS);
- *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;
- kvmppc_set_exit_type(vcpu, EMULATED_MFMSR_EXITS);
- break;
-
- case XOP_MTMSR:
- rs = get_rs(inst);
- kvmppc_set_exit_type(vcpu, EMULATED_MTMSR_EXITS);
- 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);
- kvmppc_set_exit_type(vcpu, EMULATED_WRTEE_EXITS);
- break;
-
- case XOP_WRTEEI:
- vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
- | (inst & MSR_EE);
- kvmppc_set_exit_type(vcpu, EMULATED_WRTEE_EXITS);
- break;
-
case XOP_MFDCR:
dcrn = get_dcrn(inst);
rt = get_rt(inst);
@@ -186,186 +134,51 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
emulated = EMULATE_FAIL;
}
+ if (emulated == EMULATE_FAIL)
+ emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
+
return emulated;
}
int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
{
+ int emulated = EMULATE_DONE;
+
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_MMUCR:
+ vcpu->arch.mmucr = 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[BOOKE_IRQPRIO_CRITICAL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR1:
- vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR2:
- vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR3:
- vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR4:
- vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR5:
- vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR6:
- vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR7:
- vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR8:
- vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR9:
- vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR10:
- vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR11:
- vcpu->arch.ivor[BOOKE_IRQPRIO_FIT] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR12:
- vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR13:
- vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR14:
- vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR15:
- vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG] = vcpu->arch.gpr[rs];
- break;
-
default:
- return EMULATE_FAIL;
+ emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
}
kvmppc_set_exit_type(vcpu, EMULATED_MTSPR_EXITS);
- return EMULATE_DONE;
+ return emulated;
}
int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
{
+ int emulated = EMULATE_DONE;
+
switch (sprn) {
- /* 440 */
+ case SPRN_PID:
+ vcpu->arch.gpr[rt] = vcpu->arch.pid; break;
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[BOOKE_IRQPRIO_CRITICAL];
- break;
- case SPRN_IVOR1:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK];
- break;
- case SPRN_IVOR2:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE];
- break;
- case SPRN_IVOR3:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE];
- break;
- case SPRN_IVOR4:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL];
- break;
- case SPRN_IVOR5:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT];
- break;
- case SPRN_IVOR6:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM];
- break;
- case SPRN_IVOR7:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL];
- break;
- case SPRN_IVOR8:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL];
- break;
- case SPRN_IVOR9:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL];
- break;
- case SPRN_IVOR10:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER];
- break;
- case SPRN_IVOR11:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_FIT];
- break;
- case SPRN_IVOR12:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG];
- break;
- case SPRN_IVOR13:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS];
- break;
- case SPRN_IVOR14:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS];
- break;
- case SPRN_IVOR15:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG];
- break;
-
default:
- return EMULATE_FAIL;
+ emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
}
kvmppc_set_exit_type(vcpu, EMULATED_MFSPR_EXITS);
- return EMULATE_DONE;
+ return emulated;
}
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index 9a34b8edb9e..4a16f472cc1 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -208,20 +208,38 @@ int kvmppc_44x_tlb_index(struct kvm_vcpu *vcpu, gva_t eaddr, unsigned int pid,
return -1;
}
-int kvmppc_44x_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
+gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
+ gva_t eaddr)
+{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
+ struct kvmppc_44x_tlbe *gtlbe = &vcpu_44x->guest_tlb[gtlb_index];
+ unsigned int pgmask = get_tlb_bytes(gtlbe) - 1;
+
+ return get_tlb_raddr(gtlbe) | (eaddr & pgmask);
+}
+
+int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
{
unsigned int as = !!(vcpu->arch.msr & MSR_IS);
return kvmppc_44x_tlb_index(vcpu, eaddr, vcpu->arch.pid, as);
}
-int kvmppc_44x_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
+int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
{
unsigned int as = !!(vcpu->arch.msr & MSR_DS);
return kvmppc_44x_tlb_index(vcpu, eaddr, vcpu->arch.pid, as);
}
+void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu)
+{
+}
+
+void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu)
+{
+}
+
static void kvmppc_44x_shadow_release(struct kvmppc_vcpu_44x *vcpu_44x,
unsigned int stlb_index)
{
@@ -248,7 +266,7 @@ static void kvmppc_44x_shadow_release(struct kvmppc_vcpu_44x *vcpu_44x,
KVMTRACE_1D(STLB_INVAL, &vcpu_44x->vcpu, stlb_index, handler);
}
-void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu)
+void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
int i;
@@ -269,15 +287,19 @@ void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu)
* Caller must ensure that the specified guest TLB entry is safe to insert into
* the shadow TLB.
*/
-void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, u64 asid,
- u32 flags, u32 max_bytes, unsigned int gtlb_index)
+void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
+ unsigned int gtlb_index)
{
struct kvmppc_44x_tlbe stlbe;
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
+ struct kvmppc_44x_tlbe *gtlbe = &vcpu_44x->guest_tlb[gtlb_index];
struct kvmppc_44x_shadow_ref *ref;
struct page *new_page;
hpa_t hpaddr;
gfn_t gfn;
+ u32 asid = gtlbe->tid;
+ u32 flags = gtlbe->word2;
+ u32 max_bytes = get_tlb_bytes(gtlbe);
unsigned int victim;
/* Select TLB entry to clobber. Indirectly guard against races with the TLB
@@ -448,10 +470,8 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
}
if (tlbe_is_host_safe(vcpu, tlbe)) {
- u64 asid;
gva_t eaddr;
gpa_t gpaddr;
- u32 flags;
u32 bytes;
eaddr = get_tlb_eaddr(tlbe);
@@ -462,10 +482,7 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
eaddr &= ~(bytes - 1);
gpaddr &= ~(bytes - 1);
- asid = (tlbe->word0 & PPC44x_TLB_TS) | tlbe->tid;
- flags = tlbe->word2 & 0xffff;
-
- kvmppc_mmu_map(vcpu, eaddr, gpaddr, asid, flags, bytes, gtlb_index);
+ kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlb_index);
}
KVMTRACE_5D(GTLB_WRITE, vcpu, gtlb_index, tlbe->tid, tlbe->word0,
diff --git a/arch/powerpc/kvm/44x_tlb.h b/arch/powerpc/kvm/44x_tlb.h
index 772191f29e6..a9ff80e5152 100644
--- a/arch/powerpc/kvm/44x_tlb.h
+++ b/arch/powerpc/kvm/44x_tlb.h
@@ -25,8 +25,6 @@
extern int kvmppc_44x_tlb_index(struct kvm_vcpu *vcpu, gva_t eaddr,
unsigned int pid, unsigned int as);
-extern int kvmppc_44x_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
-extern int kvmppc_44x_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
extern int kvmppc_44x_emul_tlbsx(struct kvm_vcpu *vcpu, u8 rt, u8 ra, u8 rb,
u8 rc);
@@ -85,11 +83,4 @@ static inline unsigned int get_mmucr_sts(const struct kvm_vcpu *vcpu)
return (vcpu->arch.mmucr >> 16) & 0x1;
}
-static inline gpa_t tlb_xlate(struct kvmppc_44x_tlbe *tlbe, gva_t eaddr)
-{
- unsigned int pgmask = get_tlb_bytes(tlbe) - 1;
-
- return get_tlb_raddr(tlbe) | (eaddr & pgmask);
-}
-
#endif /* __KVM_POWERPC_TLB_H__ */
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 6dbdc4817d8..5a152a52796 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -2,6 +2,9 @@
# KVM configuration
#
+config HAVE_KVM_IRQCHIP
+ bool
+
menuconfig VIRTUALIZATION
bool "Virtualization"
---help---
@@ -43,6 +46,19 @@ config KVM_EXIT_TIMING
If unsure, say N.
+config KVM_E500
+ bool "KVM support for PowerPC E500 processors"
+ depends on EXPERIMENTAL && E500
+ select KVM
+ ---help---
+ Support running unmodified E500 guest kernels in virtual machines on
+ E500 host processors.
+
+ This module provides access to the hardware capabilities through
+ a character device node named /dev/kvm.
+
+ If unsure, say N.
+
config KVM_TRACE
bool "KVM trace support"
depends on KVM && MARKERS && SYSFS
diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index df7ba59e6d5..4b2df66c79d 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -16,8 +16,18 @@ AFLAGS_booke_interrupts.o := -I$(obj)
kvm-440-objs := \
booke.o \
+ booke_emulate.o \
booke_interrupts.o \
44x.o \
44x_tlb.o \
44x_emulate.o
obj-$(CONFIG_KVM_440) += kvm-440.o
+
+kvm-e500-objs := \
+ booke.o \
+ booke_emulate.o \
+ booke_interrupts.o \
+ e500.o \
+ e500_tlb.o \
+ e500_emulate.o
+obj-$(CONFIG_KVM_E500) += kvm-e500.o
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 35485dd6927..642e4204cf2 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -30,10 +30,8 @@
#include <asm/kvm_ppc.h>
#include "timing.h"
#include <asm/cacheflush.h>
-#include <asm/kvm_44x.h>
#include "booke.h"
-#include "44x_tlb.h"
unsigned long kvmppc_booke_handlers;
@@ -120,6 +118,9 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu,
case BOOKE_IRQPRIO_DATA_STORAGE:
case BOOKE_IRQPRIO_INST_STORAGE:
case BOOKE_IRQPRIO_FP_UNAVAIL:
+ case BOOKE_IRQPRIO_SPE_UNAVAIL:
+ case BOOKE_IRQPRIO_SPE_FP_DATA:
+ case BOOKE_IRQPRIO_SPE_FP_ROUND:
case BOOKE_IRQPRIO_AP_UNAVAIL:
case BOOKE_IRQPRIO_ALIGNMENT:
allowed = 1;
@@ -165,7 +166,7 @@ void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu)
unsigned int priority;
priority = __ffs(*pending);
- while (priority <= BOOKE_MAX_INTERRUPT) {
+ while (priority <= BOOKE_IRQPRIO_MAX) {
if (kvmppc_booke_irqprio_deliver(vcpu, priority))
break;
@@ -263,6 +264,21 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
r = RESUME_GUEST;
break;
+ case BOOKE_INTERRUPT_SPE_UNAVAIL:
+ kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_SPE_UNAVAIL);
+ r = RESUME_GUEST;
+ break;
+
+ case BOOKE_INTERRUPT_SPE_FP_DATA:
+ kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_SPE_FP_DATA);
+ r = RESUME_GUEST;
+ break;
+
+ case BOOKE_INTERRUPT_SPE_FP_ROUND:
+ kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_SPE_FP_ROUND);
+ r = RESUME_GUEST;
+ break;
+
case BOOKE_INTERRUPT_DATA_STORAGE:
vcpu->arch.dear = vcpu->arch.fault_dear;
vcpu->arch.esr = vcpu->arch.fault_esr;
@@ -284,29 +300,27 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
r = RESUME_GUEST;
break;
- /* XXX move to a 440-specific file. */
case BOOKE_INTERRUPT_DTLB_MISS: {
- struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
- struct kvmppc_44x_tlbe *gtlbe;
unsigned long eaddr = vcpu->arch.fault_dear;
int gtlb_index;
+ gpa_t gpaddr;
gfn_t gfn;
/* Check the guest TLB. */
- gtlb_index = kvmppc_44x_dtlb_index(vcpu, eaddr);
+ gtlb_index = kvmppc_mmu_dtlb_index(vcpu, eaddr);
if (gtlb_index < 0) {
/* The guest didn't have a mapping for it. */
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DTLB_MISS);
vcpu->arch.dear = vcpu->arch.fault_dear;
vcpu->arch.esr = vcpu->arch.fault_esr;
+ kvmppc_mmu_dtlb_miss(vcpu);
kvmppc_account_exit(vcpu, DTLB_REAL_MISS_EXITS);
r = RESUME_GUEST;
break;
}
- gtlbe = &vcpu_44x->guest_tlb[gtlb_index];
- vcpu->arch.paddr_accessed = tlb_xlate(gtlbe, eaddr);
- gfn = vcpu->arch.paddr_accessed >> PAGE_SHIFT;
+ gpaddr = kvmppc_mmu_xlate(vcpu, gtlb_index, eaddr);
+ gfn = gpaddr >> PAGE_SHIFT;
if (kvm_is_visible_gfn(vcpu->kvm, gfn)) {
/* The guest TLB had a mapping, but the shadow TLB
@@ -315,13 +329,13 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
* b) the guest used a large mapping which we're faking
* Either way, we need to satisfy the fault without
* invoking the guest. */
- kvmppc_mmu_map(vcpu, eaddr, vcpu->arch.paddr_accessed, gtlbe->tid,
- gtlbe->word2, get_tlb_bytes(gtlbe), gtlb_index);
+ kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlb_index);
kvmppc_account_exit(vcpu, DTLB_VIRT_MISS_EXITS);
r = RESUME_GUEST;
} else {
/* Guest has mapped and accessed a page which is not
* actually RAM. */
+ vcpu->arch.paddr_accessed = gpaddr;
r = kvmppc_emulate_mmio(run, vcpu);
kvmppc_account_exit(vcpu, MMIO_EXITS);
}
@@ -329,10 +343,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
break;
}
- /* XXX move to a 440-specific file. */
case BOOKE_INTERRUPT_ITLB_MISS: {
- struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
- struct kvmppc_44x_tlbe *gtlbe;
unsigned long eaddr = vcpu->arch.pc;
gpa_t gpaddr;
gfn_t gfn;
@@ -341,18 +352,18 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
r = RESUME_GUEST;
/* Check the guest TLB. */
- gtlb_index = kvmppc_44x_itlb_index(vcpu, eaddr);
+ gtlb_index = kvmppc_mmu_itlb_index(vcpu, eaddr);
if (gtlb_index < 0) {
/* The guest didn't have a mapping for it. */
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_ITLB_MISS);
+ kvmppc_mmu_itlb_miss(vcpu);
kvmppc_account_exit(vcpu, ITLB_REAL_MISS_EXITS);
break;
}
kvmppc_account_exit(vcpu, ITLB_VIRT_MISS_EXITS);
- gtlbe = &vcpu_44x->guest_tlb[gtlb_index];
- gpaddr = tlb_xlate(gtlbe, eaddr);
+ gpaddr = kvmppc_mmu_xlate(vcpu, gtlb_index, eaddr);
gfn = gpaddr >> PAGE_SHIFT;
if (kvm_is_visible_gfn(vcpu->kvm, gfn)) {
@@ -362,8 +373,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
* b) the guest used a large mapping which we're faking
* Either way, we need to satisfy the fault without
* invoking the guest. */
- kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlbe->tid,
- gtlbe->word2, get_tlb_bytes(gtlbe), gtlb_index);
+ kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlb_index);
} else {
/* Guest mapped and leaped at non-RAM! */
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_MACHINE_CHECK);
diff --git a/arch/powerpc/kvm/booke.h b/arch/powerpc/kvm/booke.h
index cf7c94ca24b..d59bcca1f9d 100644
--- a/arch/powerpc/kvm/booke.h
+++ b/arch/powerpc/kvm/booke.h
@@ -22,6 +22,7 @@
#include <linux/types.h>
#include <linux/kvm_host.h>
+#include <asm/kvm_ppc.h>
#include "timing.h"
/* interrupt priortity ordering */
@@ -30,17 +31,24 @@
#define BOOKE_IRQPRIO_ALIGNMENT 2
#define BOOKE_IRQPRIO_PROGRAM 3
#define BOOKE_IRQPRIO_FP_UNAVAIL 4
-#define BOOKE_IRQPRIO_SYSCALL 5
-#define BOOKE_IRQPRIO_AP_UNAVAIL 6
-#define BOOKE_IRQPRIO_DTLB_MISS 7
-#define BOOKE_IRQPRIO_ITLB_MISS 8
-#define BOOKE_IRQPRIO_MACHINE_CHECK 9
-#define BOOKE_IRQPRIO_DEBUG 10
-#define BOOKE_IRQPRIO_CRITICAL 11
-#define BOOKE_IRQPRIO_WATCHDOG 12
-#define BOOKE_IRQPRIO_EXTERNAL 13
-#define BOOKE_IRQPRIO_FIT 14
-#define BOOKE_IRQPRIO_DECREMENTER 15
+#define BOOKE_IRQPRIO_SPE_UNAVAIL 5
+#define BOOKE_IRQPRIO_SPE_FP_DATA 6
+#define BOOKE_IRQPRIO_SPE_FP_ROUND 7
+#define BOOKE_IRQPRIO_SYSCALL 8
+#define BOOKE_IRQPRIO_AP_UNAVAIL 9
+#define BOOKE_IRQPRIO_DTLB_MISS 10
+#define BOOKE_IRQPRIO_ITLB_MISS 11
+#define BOOKE_IRQPRIO_MACHINE_CHECK 12
+#define BOOKE_IRQPRIO_DEBUG 13
+#define BOOKE_IRQPRIO_CRITICAL 14
+#define BOOKE_IRQPRIO_WATCHDOG 15
+#define BOOKE_IRQPRIO_EXTERNAL 16
+#define BOOKE_IRQPRIO_FIT 17
+#define BOOKE_IRQPRIO_DECREMENTER 18
+#define BOOKE_IRQPRIO_PERFORMANCE_MONITOR 19
+#define BOOKE_IRQPRIO_MAX 19
+
+extern unsigned long kvmppc_booke_handlers;
/* Helper function for "full" MSR writes. No need to call this if only EE is
* changing. */
@@ -57,4 +65,9 @@ static inline void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
};
}
+int kvmppc_booke_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int inst, int *advance);
+int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
+int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);
+
#endif /* __KVM_BOOKE_H__ */
diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c
new file mode 100644
index 00000000000..aebc65e93f4
--- /dev/null
+++ b/arch/powerpc/kvm/booke_emulate.c
@@ -0,0 +1,266 @@
+/*
+ * 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 <linux/kvm_host.h>
+#include <asm/disassemble.h>
+
+#include "booke.h"
+
+#define OP_19_XOP_RFI 50
+
+#define OP_31_XOP_MFMSR 83
+#define OP_31_XOP_WRTEE 131
+#define OP_31_XOP_MTMSR 146
+#define OP_31_XOP_WRTEEI 163
+
+static void kvmppc_emul_rfi(struct kvm_vcpu *vcpu)
+{
+ vcpu->arch.pc = vcpu->arch.srr0;
+ kvmppc_set_msr(vcpu, vcpu->arch.srr1);
+}
+
+int kvmppc_booke_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int inst, int *advance)
+{
+ int emulated = EMULATE_DONE;
+ int rs;
+ int rt;
+
+ switch (get_op(inst)) {
+ case 19:
+ switch (get_xop(inst)) {
+ case OP_19_XOP_RFI:
+ kvmppc_emul_rfi(vcpu);
+ kvmppc_set_exit_type(vcpu, EMULATED_RFI_EXITS);
+ *advance = 0;
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ break;
+ }
+ break;
+
+ case 31:
+ switch (get_xop(inst)) {
+
+ case OP_31_XOP_MFMSR:
+ rt = get_rt(inst);
+ vcpu->arch.gpr[rt] = vcpu->arch.msr;
+ kvmppc_set_exit_type(vcpu, EMULATED_MFMSR_EXITS);
+ break;
+
+ case OP_31_XOP_MTMSR:
+ rs = get_rs(inst);
+ kvmppc_set_exit_type(vcpu, EMULATED_MTMSR_EXITS);
+ kvmppc_set_msr(vcpu, vcpu->arch.gpr[rs]);
+ break;
+
+ case OP_31_XOP_WRTEE:
+ rs = get_rs(inst);
+ vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
+ | (vcpu->arch.gpr[rs] & MSR_EE);
+ kvmppc_set_exit_type(vcpu, EMULATED_WRTEE_EXITS);
+ break;
+
+ case OP_31_XOP_WRTEEI:
+ vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
+ | (inst & MSR_EE);
+ kvmppc_set_exit_type(vcpu, EMULATED_WRTEE_EXITS);
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ }
+
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ }
+
+ return emulated;
+}
+
+int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
+{
+ int emulated = EMULATE_DONE;
+
+ switch (sprn) {
+ 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_DBSR:
+ vcpu->arch.dbsr &= ~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[BOOKE_IRQPRIO_CRITICAL] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR1:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR2:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR3:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR4:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR5:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR6:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR7:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR8:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR9:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR10:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR11:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_FIT] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR12:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR13:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR14:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR15:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG] = vcpu->arch.gpr[rs];
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ }
+
+ return emulated;
+}
+
+int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
+{
+ int emulated = EMULATE_DONE;
+
+ switch (sprn) {
+ 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_DBSR:
+ vcpu->arch.gpr[rt] = vcpu->arch.dbsr; break;
+
+ case SPRN_IVOR0:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL];
+ break;
+ case SPRN_IVOR1:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK];
+ break;
+ case SPRN_IVOR2:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE];
+ break;
+ case SPRN_IVOR3:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE];
+ break;
+ case SPRN_IVOR4:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL];
+ break;
+ case SPRN_IVOR5:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT];
+ break;
+ case SPRN_IVOR6:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM];
+ break;
+ case SPRN_IVOR7:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL];
+ break;
+ case SPRN_IVOR8:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL];
+ break;
+ case SPRN_IVOR9:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL];
+ break;
+ case SPRN_IVOR10:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER];
+ break;
+ case SPRN_IVOR11:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_FIT];
+ break;
+ case SPRN_IVOR12:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG];
+ break;
+ case SPRN_IVOR13:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS];
+ break;
+ case SPRN_IVOR14:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS];
+ break;
+ case SPRN_IVOR15:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG];
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ }
+
+ return emulated;
+}
diff --git a/arch/powerpc/kvm/booke_interrupts.S b/arch/powerpc/kvm/booke_interrupts.S
index 084ebcd7dd8..d0c6f841bbd 100644
--- a/arch/powerpc/kvm/booke_interrupts.S
+++ b/arch/powerpc/kvm/booke_interrupts.S
@@ -86,6 +86,9 @@ KVM_HANDLER BOOKE_INTERRUPT_WATCHDOG
KVM_HANDLER BOOKE_INTERRUPT_DTLB_MISS
KVM_HANDLER BOOKE_INTERRUPT_ITLB_MISS
KVM_HANDLER BOOKE_INTERRUPT_DEBUG
+KVM_HANDLER BOOKE_INTERRUPT_SPE_UNAVAIL
+KVM_HANDLER BOOKE_INTERRUPT_SPE_FP_DATA
+KVM_HANDLER BOOKE_INTERRUPT_SPE_FP_ROUND
_GLOBAL(kvmppc_handler_len)
.long kvmppc_handler_1 - kvmppc_handler_0
@@ -347,7 +350,9 @@ lightweight_exit:
lwz r3, VCPU_SHADOW_PID(r4)
mtspr SPRN_PID, r3
+#ifdef CONFIG_44x
iccci 0, 0 /* XXX hack */
+#endif
/* Load some guest volatiles. */
lwz r0, VCPU_GPR(r0)(r4)
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
new file mode 100644
index 00000000000..d8067fd81cd
--- /dev/null
+++ b/arch/powerpc/kvm/e500.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Yu Liu, <yu.liu@freescale.com>
+ *
+ * Description:
+ * This file is derived from arch/powerpc/kvm/44x.c,
+ * by Hollis Blanchard <hollisb@us.ibm.com>.
+ *
+ * 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.
+ */
+
+#include <linux/kvm_host.h>
+#include <linux/err.h>
+
+#include <asm/reg.h>
+#include <asm/cputable.h>
+#include <asm/tlbflush.h>
+#include <asm/kvm_e500.h>
+#include <asm/kvm_ppc.h>
+
+#include "booke.h"
+#include "e500_tlb.h"
+
+void kvmppc_core_load_host_debugstate(struct kvm_vcpu *vcpu)
+{
+}
+
+void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
+{
+}
+
+void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+{
+ kvmppc_e500_tlb_load(vcpu, cpu);
+}
+
+void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
+{
+ kvmppc_e500_tlb_put(vcpu);
+}
+
+int kvmppc_core_check_processor_compat(void)
+{
+ int r;
+
+ if (strcmp(cur_cpu_spec->cpu_name, "e500v2") == 0)
+ r = 0;
+ else
+ r = -ENOTSUPP;
+
+ return r;
+}
+
+int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+
+ kvmppc_e500_tlb_setup(vcpu_e500);
+
+ /* Use the same core vertion as host's */
+ vcpu->arch.pvr = mfspr(SPRN_PVR);
+
+ return 0;
+}
+
+/* 'linear_address' is actually an encoding of AS|PID|EADDR . */
+int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
+ struct kvm_translation *tr)
+{
+ int index;
+ gva_t eaddr;
+ u8 pid;
+ u8 as;
+
+ eaddr = tr->linear_address;
+ pid = (tr->linear_address >> 32) & 0xff;
+ as = (tr->linear_address >> 40) & 0x1;
+
+ index = kvmppc_e500_tlb_search(vcpu, eaddr, pid, as);
+ if (index < 0) {
+ tr->valid = 0;
+ return 0;
+ }
+
+ tr->physical_address = kvmppc_mmu_xlate(vcpu, index, eaddr);
+ /* XXX what does "writeable" and "usermode" even mean? */
+ tr->valid = 1;
+
+ return 0;
+}
+
+struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500;
+ struct kvm_vcpu *vcpu;
+ int err;
+
+ vcpu_e500 = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
+ if (!vcpu_e500) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ vcpu = &vcpu_e500->vcpu;
+ err = kvm_vcpu_init(vcpu, kvm, id);
+ if (err)
+ goto free_vcpu;
+
+ err = kvmppc_e500_tlb_init(vcpu_e500);
+ if (err)
+ goto uninit_vcpu;
+
+ return vcpu;
+
+uninit_vcpu:
+ kvm_vcpu_uninit(vcpu);
+free_vcpu:
+ kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
+out:
+ return ERR_PTR(err);
+}
+
+void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+
+ kvmppc_e500_tlb_uninit(vcpu_e500);
+ kvm_vcpu_uninit(vcpu);
+ kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
+}
+
+static int kvmppc_e500_init(void)
+{
+ int r, i;
+ unsigned long ivor[3];
+ unsigned long max_ivor = 0;
+
+ r = kvmppc_booke_init();
+ if (r)
+ return r;
+
+ /* copy extra E500 exception handlers */
+ ivor[0] = mfspr(SPRN_IVOR32);
+ ivor[1] = mfspr(SPRN_IVOR33);
+ ivor[2] = mfspr(SPRN_IVOR34);
+ for (i = 0; i < 3; i++) {
+ if (ivor[i] > max_ivor)
+ max_ivor = ivor[i];
+
+ memcpy((void *)kvmppc_booke_handlers + ivor[i],
+ kvmppc_handlers_start + (i + 16) * kvmppc_handler_len,
+ kvmppc_handler_len);
+ }
+ flush_icache_range(kvmppc_booke_handlers,
+ kvmppc_booke_handlers + max_ivor + kvmppc_handler_len);
+
+ return kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), THIS_MODULE);
+}
+
+static void kvmppc_e500_exit(void)
+{
+ kvmppc_booke_exit();
+}
+
+module_init(kvmppc_e500_init);
+module_exit(kvmppc_e500_exit);
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
new file mode 100644
index 00000000000..3f760414b9f
--- /dev/null
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Yu Liu, <yu.liu@freescale.com>
+ *
+ * Description:
+ * This file is derived from arch/powerpc/kvm/44x_emulate.c,
+ * by Hollis Blanchard <hollisb@us.ibm.com>.
+ *
+ * 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.
+ */
+
+#include <asm/kvm_ppc.h>
+#include <asm/disassemble.h>
+#include <asm/kvm_e500.h>
+
+#include "booke.h"
+#include "e500_tlb.h"
+
+#define XOP_TLBIVAX 786
+#define XOP_TLBSX 914
+#define XOP_TLBRE 946
+#define XOP_TLBWE 978
+
+int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int inst, int *advance)
+{
+ int emulated = EMULATE_DONE;
+ int ra;
+ int rb;
+
+ switch (get_op(inst)) {
+ case 31:
+ switch (get_xop(inst)) {
+
+ case XOP_TLBRE:
+ emulated = kvmppc_e500_emul_tlbre(vcpu);
+ break;
+
+ case XOP_TLBWE:
+ emulated = kvmppc_e500_emul_tlbwe(vcpu);
+ break;
+
+ case XOP_TLBSX:
+ rb = get_rb(inst);
+ emulated = kvmppc_e500_emul_tlbsx(vcpu,rb);
+ break;
+
+ case XOP_TLBIVAX:
+ ra = get_ra(inst);
+ rb = get_rb(inst);
+ emulated = kvmppc_e500_emul_tlbivax(vcpu, ra, rb);
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ }
+
+ break;
+
+ default:
+ emulated = EMULATE_FAIL;
+ }
+
+ if (emulated == EMULATE_FAIL)
+ emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
+
+ return emulated;
+}
+
+int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ int emulated = EMULATE_DONE;
+
+ switch (sprn) {
+ case SPRN_PID:
+ vcpu_e500->pid[0] = vcpu->arch.shadow_pid =
+ vcpu->arch.pid = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_PID1:
+ vcpu_e500->pid[1] = vcpu->arch.gpr[rs]; break;
+ case SPRN_PID2:
+ vcpu_e500->pid[2] = vcpu->arch.gpr[rs]; break;
+ case SPRN_MAS0:
+ vcpu_e500->mas0 = vcpu->arch.gpr[rs]; break;
+ case SPRN_MAS1:
+ vcpu_e500->mas1 = vcpu->arch.gpr[rs]; break;
+ case SPRN_MAS2:
+ vcpu_e500->mas2 = vcpu->arch.gpr[rs]; break;
+ case SPRN_MAS3:
+ vcpu_e500->mas3 = vcpu->arch.gpr[rs]; break;
+ case SPRN_MAS4:
+ vcpu_e500->mas4 = vcpu->arch.gpr[rs]; break;
+ case SPRN_MAS6:
+ vcpu_e500->mas6 = vcpu->arch.gpr[rs]; break;
+ case SPRN_MAS7:
+ vcpu_e500->mas7 = vcpu->arch.gpr[rs]; break;
+ case SPRN_L1CSR1:
+ vcpu_e500->l1csr1 = vcpu->arch.gpr[rs]; break;
+ case SPRN_HID0:
+ vcpu_e500->hid0 = vcpu->arch.gpr[rs]; break;
+ case SPRN_HID1:
+ vcpu_e500->hid1 = vcpu->arch.gpr[rs]; break;
+
+ case SPRN_MMUCSR0:
+ emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
+ vcpu->arch.gpr[rs]);
+ break;
+
+ /* extra exceptions */
+ case SPRN_IVOR32:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR33:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR34:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = vcpu->arch.gpr[rs];
+ break;
+ case SPRN_IVOR35:
+ vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = vcpu->arch.gpr[rs];
+ break;
+
+ default:
+ emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
+ }
+
+ return emulated;
+}
+
+int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ int emulated = EMULATE_DONE;
+
+ switch (sprn) {
+ case SPRN_PID:
+ vcpu->arch.gpr[rt] = vcpu_e500->pid[0]; break;
+ case SPRN_PID1:
+ vcpu->arch.gpr[rt] = vcpu_e500->pid[1]; break;
+ case SPRN_PID2:
+ vcpu->arch.gpr[rt] = vcpu_e500->pid[2]; break;
+ case SPRN_MAS0:
+ vcpu->arch.gpr[rt] = vcpu_e500->mas0; break;
+ case SPRN_MAS1:
+ vcpu->arch.gpr[rt] = vcpu_e500->mas1; break;
+ case SPRN_MAS2:
+ vcpu->arch.gpr[rt] = vcpu_e500->mas2; break;
+ case SPRN_MAS3:
+ vcpu->arch.gpr[rt] = vcpu_e500->mas3; break;
+ case SPRN_MAS4:
+ vcpu->arch.gpr[rt] = vcpu_e500->mas4; break;
+ case SPRN_MAS6:
+ vcpu->arch.gpr[rt] = vcpu_e500->mas6; break;
+ case SPRN_MAS7:
+ vcpu->arch.gpr[rt] = vcpu_e500->mas7; break;
+
+ case SPRN_TLB0CFG:
+ vcpu->arch.gpr[rt] = mfspr(SPRN_TLB0CFG);
+ vcpu->arch.gpr[rt] &= ~0xfffUL;
+ vcpu->arch.gpr[rt] |= vcpu_e500->guest_tlb_size[0];
+ break;
+
+ case SPRN_TLB1CFG:
+ vcpu->arch.gpr[rt] = mfspr(SPRN_TLB1CFG);
+ vcpu->arch.gpr[rt] &= ~0xfffUL;
+ vcpu->arch.gpr[rt] |= vcpu_e500->guest_tlb_size[1];
+ break;
+
+ case SPRN_L1CSR1:
+ vcpu->arch.gpr[rt] = vcpu_e500->l1csr1; break;
+ case SPRN_HID0:
+ vcpu->arch.gpr[rt] = vcpu_e500->hid0; break;
+ case SPRN_HID1:
+ vcpu->arch.gpr[rt] = vcpu_e500->hid1; break;
+
+ case SPRN_MMUCSR0:
+ vcpu->arch.gpr[rt] = 0; break;
+
+ /* extra exceptions */
+ case SPRN_IVOR32:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL];
+ break;
+ case SPRN_IVOR33:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA];
+ break;
+ case SPRN_IVOR34:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND];
+ break;
+ case SPRN_IVOR35:
+ vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
+ break;
+ default:
+ emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
+ }
+
+ return emulated;
+}
+
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c
new file mode 100644
index 00000000000..0e773fc2d5e
--- /dev/null
+++ b/arch/powerpc/kvm/e500_tlb.c
@@ -0,0 +1,757 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Yu Liu, yu.liu@freescale.com
+ *
+ * Description:
+ * This file is based on arch/powerpc/kvm/44x_tlb.c,
+ * by Hollis Blanchard <hollisb@us.ibm.com>.
+ *
+ * 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.
+ */
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/kvm.h>
+#include <linux/kvm_host.h>
+#include <linux/highmem.h>
+#include <asm/kvm_ppc.h>
+#include <asm/kvm_e500.h>
+
+#include "../mm/mmu_decl.h"
+#include "e500_tlb.h"
+
+#define to_htlb1_esel(esel) (tlb1_entry_num - (esel) - 1)
+
+static unsigned int tlb1_entry_num;
+
+void kvmppc_dump_tlbs(struct kvm_vcpu *vcpu)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ struct tlbe *tlbe;
+ int i, tlbsel;
+
+ printk("| %8s | %8s | %8s | %8s | %8s |\n",
+ "nr", "mas1", "mas2", "mas3", "mas7");
+
+ for (tlbsel = 0; tlbsel < 2; tlbsel++) {
+ printk("Guest TLB%d:\n", tlbsel);
+ for (i = 0; i < vcpu_e500->guest_tlb_size[tlbsel]; i++) {
+ tlbe = &vcpu_e500->guest_tlb[tlbsel][i];
+ if (tlbe->mas1 & MAS1_VALID)
+ printk(" G[%d][%3d] | %08X | %08X | %08X | %08X |\n",
+ tlbsel, i, tlbe->mas1, tlbe->mas2,
+ tlbe->mas3, tlbe->mas7);
+ }
+ }
+
+ for (tlbsel = 0; tlbsel < 2; tlbsel++) {
+ printk("Shadow TLB%d:\n", tlbsel);
+ for (i = 0; i < vcpu_e500->shadow_tlb_size[tlbsel]; i++) {
+ tlbe = &vcpu_e500->shadow_tlb[tlbsel][i];
+ if (tlbe->mas1 & MAS1_VALID)
+ printk(" S[%d][%3d] | %08X | %08X | %08X | %08X |\n",
+ tlbsel, i, tlbe->mas1, tlbe->mas2,
+ tlbe->mas3, tlbe->mas7);
+ }
+ }
+}
+
+static inline unsigned int tlb0_get_next_victim(
+ struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ unsigned int victim;
+
+ victim = vcpu_e500->guest_tlb_nv[0]++;
+ if (unlikely(vcpu_e500->guest_tlb_nv[0] >= KVM_E500_TLB0_WAY_NUM))
+ vcpu_e500->guest_tlb_nv[0] = 0;
+
+ return victim;
+}
+
+static inline unsigned int tlb1_max_shadow_size(void)
+{
+ return tlb1_entry_num - tlbcam_index;
+}
+
+static inline int tlbe_is_writable(struct tlbe *tlbe)
+{
+ return tlbe->mas3 & (MAS3_SW|MAS3_UW);
+}
+
+static inline u32 e500_shadow_mas3_attrib(u32 mas3, int usermode)
+{
+ /* Mask off reserved bits. */
+ mas3 &= MAS3_ATTRIB_MASK;
+
+ if (!usermode) {
+ /* Guest is in supervisor mode,
+ * so we need to translate guest
+ * supervisor permissions into user permissions. */
+ mas3 &= ~E500_TLB_USER_PERM_MASK;
+ mas3 |= (mas3 & E500_TLB_SUPER_PERM_MASK) << 1;
+ }
+
+ return mas3 | E500_TLB_SUPER_PERM_MASK;
+}
+
+static inline u32 e500_shadow_mas2_attrib(u32 mas2, int usermode)
+{
+#ifdef CONFIG_SMP
+ return (mas2 & MAS2_ATTRIB_MASK) | MAS2_M;
+#else
+ return mas2 & MAS2_ATTRIB_MASK;
+#endif
+}
+
+/*
+ * writing shadow tlb entry to host TLB
+ */
+static inline void __write_host_tlbe(struct tlbe *stlbe)
+{
+ mtspr(SPRN_MAS1, stlbe->mas1);
+ mtspr(SPRN_MAS2, stlbe->mas2);
+ mtspr(SPRN_MAS3, stlbe->mas3);
+ mtspr(SPRN_MAS7, stlbe->mas7);
+ __asm__ __volatile__ ("tlbwe\n" : : );
+}
+
+static inline void write_host_tlbe(struct kvmppc_vcpu_e500 *vcpu_e500,
+ int tlbsel, int esel)
+{
+ struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
+
+ local_irq_disable();
+ if (tlbsel == 0) {
+ __write_host_tlbe(stlbe);
+ } else {
+ unsigned register mas0;
+
+ mas0 = mfspr(SPRN_MAS0);
+
+ mtspr(SPRN_MAS0, MAS0_TLBSEL(1) | MAS0_ESEL(to_htlb1_esel(esel)));
+ __write_host_tlbe(stlbe);
+
+ mtspr(SPRN_MAS0, mas0);
+ }
+ local_irq_enable();
+}
+
+void kvmppc_e500_tlb_load(struct kvm_vcpu *vcpu, int cpu)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ int i;
+ unsigned register mas0;
+
+ /* Load all valid TLB1 entries to reduce guest tlb miss fault */
+ local_irq_disable();
+ mas0 = mfspr(SPRN_MAS0);
+ for (i = 0; i < tlb1_max_shadow_size(); i++) {
+ struct tlbe *stlbe = &vcpu_e500->shadow_tlb[1][i];
+
+ if (get_tlb_v(stlbe)) {
+ mtspr(SPRN_MAS0, MAS0_TLBSEL(1)
+ | MAS0_ESEL(to_htlb1_esel(i)));
+ __write_host_tlbe(stlbe);
+ }
+ }
+ mtspr(SPRN_MAS0, mas0);
+ local_irq_enable();
+}
+
+void kvmppc_e500_tlb_put(struct kvm_vcpu *vcpu)
+{
+ _tlbil_all();
+}
+
+/* Search the guest TLB for a matching entry. */
+static int kvmppc_e500_tlb_index(struct kvmppc_vcpu_e500 *vcpu_e500,
+ gva_t eaddr, int tlbsel, unsigned int pid, int as)
+{
+ int i;
+
+ /* XXX Replace loop with fancy data structures. */
+ for (i = 0; i < vcpu_e500->guest_tlb_size[tlbsel]; i++) {
+ struct tlbe *tlbe = &vcpu_e500->guest_tlb[tlbsel][i];
+ unsigned int tid;
+
+ if (eaddr < get_tlb_eaddr(tlbe))
+ continue;
+
+ if (eaddr > get_tlb_end(tlbe))
+ continue;
+
+ tid = get_tlb_tid(tlbe);
+ if (tid && (tid != pid))
+ continue;
+
+ if (!get_tlb_v(tlbe))
+ continue;
+
+ if (get_tlb_ts(tlbe) != as && as != -1)
+ continue;
+
+ return i;
+ }
+
+ return -1;
+}
+
+static void kvmppc_e500_shadow_release(struct kvmppc_vcpu_e500 *vcpu_e500,
+ int tlbsel, int esel)
+{
+ struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
+ struct page *page = vcpu_e500->shadow_pages[tlbsel][esel];
+
+ if (page) {
+ vcpu_e500->shadow_pages[tlbsel][esel] = NULL;
+
+ if (get_tlb_v(stlbe)) {
+ if (tlbe_is_writable(stlbe))
+ kvm_release_page_dirty(page);
+ else
+ kvm_release_page_clean(page);
+ }
+ }
+}
+
+static void kvmppc_e500_stlbe_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
+ int tlbsel, int esel)
+{
+ struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
+
+ kvmppc_e500_shadow_release(vcpu_e500, tlbsel, esel);
+ stlbe->mas1 = 0;
+ KVMTRACE_5D(STLB_INVAL, &vcpu_e500->vcpu, index_of(tlbsel, esel),
+ stlbe->mas1, stlbe->mas2, stlbe->mas3, stlbe->mas7,
+ handler);
+}
+
+static void kvmppc_e500_tlb1_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
+ gva_t eaddr, gva_t eend, u32 tid)
+{
+ unsigned int pid = tid & 0xff;
+ unsigned int i;
+
+ /* XXX Replace loop with fancy data structures. */
+ for (i = 0; i < vcpu_e500->guest_tlb_size[1]; i++) {
+ struct tlbe *stlbe = &vcpu_e500->shadow_tlb[1][i];
+ unsigned int tid;
+
+ if (!get_tlb_v(stlbe))
+ continue;
+
+ if (eend < get_tlb_eaddr(stlbe))
+ continue;
+
+ if (eaddr > get_tlb_end(stlbe))
+ continue;
+
+ tid = get_tlb_tid(stlbe);
+ if (tid && (tid != pid))
+ continue;
+
+ kvmppc_e500_stlbe_invalidate(vcpu_e500, 1, i);
+ write_host_tlbe(vcpu_e500, 1, i);
+ }
+}
+
+static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu,
+ unsigned int eaddr, int as)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ unsigned int victim, pidsel, tsized;
+ int tlbsel;
+
+ /* since we only have two TLBs, only lower bit is used. */
+ tlbsel = (vcpu_e500->mas4 >> 28) & 0x1;
+ victim = (tlbsel == 0) ? tlb0_get_next_victim(vcpu_e500) : 0;
+ pidsel = (vcpu_e500->mas4 >> 16) & 0xf;
+ tsized = (vcpu_e500->mas4 >> 8) & 0xf;
+
+ vcpu_e500->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(victim)
+ | MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
+ vcpu_e500->mas1 = MAS1_VALID | (as ? MAS1_TS : 0)
+ | MAS1_TID(vcpu_e500->pid[pidsel])
+ | MAS1_TSIZE(tsized);
+ vcpu_e500->mas2 = (eaddr & MAS2_EPN)
+ | (vcpu_e500->mas4 & MAS2_ATTRIB_MASK);
+ vcpu_e500->mas3 &= MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3;
+ vcpu_e500->mas6 = (vcpu_e500->mas6 & MAS6_SPID1)
+ | (get_cur_pid(vcpu) << 16)
+ | (as ? MAS6_SAS : 0);
+ vcpu_e500->mas7 = 0;
+}
+
+static inline void kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
+ u64 gvaddr, gfn_t gfn, struct tlbe *gtlbe, int tlbsel, int esel)
+{
+ struct page *new_page;
+ struct tlbe *stlbe;
+ hpa_t hpaddr;
+
+ stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
+
+ /* Get reference to new page. */
+ new_page = gfn_to_page(vcpu_e500->vcpu.kvm, gfn);
+ if (is_error_page(new_page)) {
+ printk(KERN_ERR "Couldn't get guest page for gfn %lx!\n", gfn);
+ kvm_release_page_clean(new_page);
+ return;
+ }
+ hpaddr = page_to_phys(new_page);
+
+ /* Drop reference to old page. */
+ kvmppc_e500_shadow_release(vcpu_e500, tlbsel, esel);
+
+ vcpu_e500->shadow_pages[tlbsel][esel] = new_page;
+
+ /* Force TS=1 IPROT=0 TSIZE=4KB for all guest mappings. */
+ stlbe->mas1 = MAS1_TSIZE(BOOKE_PAGESZ_4K)
+ | MAS1_TID(get_tlb_tid(gtlbe)) | MAS1_TS | MAS1_VALID;
+ stlbe->mas2 = (gvaddr & MAS2_EPN)
+ | e500_shadow_mas2_attrib(gtlbe->mas2,
+ vcpu_e500->vcpu.arch.msr & MSR_PR);
+ stlbe->mas3 = (hpaddr & MAS3_RPN)
+ | e500_shadow_mas3_attrib(gtlbe->mas3,
+ vcpu_e500->vcpu.arch.msr & MSR_PR);
+ stlbe->mas7 = (hpaddr >> 32) & MAS7_RPN;
+
+ KVMTRACE_5D(STLB_WRITE, &vcpu_e500->vcpu, index_of(tlbsel, esel),
+ stlbe->mas1, stlbe->mas2, stlbe->mas3, stlbe->mas7,
+ handler);
+}
+
+/* XXX only map the one-one case, for now use TLB0 */
+static int kvmppc_e500_stlbe_map(struct kvmppc_vcpu_e500 *vcpu_e500,
+ int tlbsel, int esel)
+{
+ struct tlbe *gtlbe;
+
+ gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+
+ kvmppc_e500_shadow_map(vcpu_e500, get_tlb_eaddr(gtlbe),
+ get_tlb_raddr(gtlbe) >> PAGE_SHIFT,
+ gtlbe, tlbsel, esel);
+
+ return esel;
+}
+
+/* Caller must ensure that the specified guest TLB entry is safe to insert into
+ * the shadow TLB. */
+/* XXX for both one-one and one-to-many , for now use TLB1 */
+static int kvmppc_e500_tlb1_map(struct kvmppc_vcpu_e500 *vcpu_e500,
+ u64 gvaddr, gfn_t gfn, struct tlbe *gtlbe)
+{
+ unsigned int victim;
+
+ victim = vcpu_e500->guest_tlb_nv[1]++;
+
+ if (unlikely(vcpu_e500->guest_tlb_nv[1] >= tlb1_max_shadow_size()))
+ vcpu_e500->guest_tlb_nv[1] = 0;
+
+ kvmppc_e500_shadow_map(vcpu_e500, gvaddr, gfn, gtlbe, 1, victim);
+
+ return victim;
+}
+
+/* Invalidate all guest kernel mappings when enter usermode,
+ * so that when they fault back in they will get the
+ * proper permission bits. */
+void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode)
+{
+ if (usermode) {
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ int i;
+
+ /* XXX Replace loop with fancy data structures. */
+ for (i = 0; i < tlb1_max_shadow_size(); i++)
+ kvmppc_e500_stlbe_invalidate(vcpu_e500, 1, i);
+
+ _tlbil_all();
+ }
+}
+
+static int kvmppc_e500_gtlbe_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
+ int tlbsel, int esel)
+{
+ struct tlbe *gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+
+ if (unlikely(get_tlb_iprot(gtlbe)))
+ return -1;
+
+ if (tlbsel == 1) {
+ kvmppc_e500_tlb1_invalidate(vcpu_e500, get_tlb_eaddr(gtlbe),
+ get_tlb_end(gtlbe),
+ get_tlb_tid(gtlbe));
+ } else {
+ kvmppc_e500_stlbe_invalidate(vcpu_e500, tlbsel, esel);
+ }
+
+ gtlbe->mas1 = 0;
+
+ return 0;
+}
+
+int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500, ulong value)
+{
+ int esel;
+
+ if (value & MMUCSR0_TLB0FI)
+ for (esel = 0; esel < vcpu_e500->guest_tlb_size[0]; esel++)
+ kvmppc_e500_gtlbe_invalidate(vcpu_e500, 0, esel);
+ if (value & MMUCSR0_TLB1FI)
+ for (esel = 0; esel < vcpu_e500->guest_tlb_size[1]; esel++)
+ kvmppc_e500_gtlbe_invalidate(vcpu_e500, 1, esel);
+
+ _tlbil_all();
+
+ return EMULATE_DONE;
+}
+
+int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, int ra, int rb)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ unsigned int ia;
+ int esel, tlbsel;
+ gva_t ea;
+
+ ea = ((ra) ? vcpu->arch.gpr[ra] : 0) + vcpu->arch.gpr[rb];
+
+ ia = (ea >> 2) & 0x1;
+
+ /* since we only have two TLBs, only lower bit is used. */
+ tlbsel = (ea >> 3) & 0x1;
+
+ if (ia) {
+ /* invalidate all entries */
+ for (esel = 0; esel < vcpu_e500->guest_tlb_size[tlbsel]; esel++)
+ kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
+ } else {
+ ea &= 0xfffff000;
+ esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel,
+ get_cur_pid(vcpu), -1);
+ if (esel >= 0)
+ kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
+ }
+
+ _tlbil_all();
+
+ return EMULATE_DONE;
+}
+
+int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ int tlbsel, esel;
+ struct tlbe *gtlbe;
+
+ tlbsel = get_tlb_tlbsel(vcpu_e500);
+ esel = get_tlb_esel(vcpu_e500, tlbsel);
+
+ gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+ vcpu_e500->mas0 &= ~MAS0_NV(~0);
+ vcpu_e500->mas0 |= MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
+ vcpu_e500->mas1 = gtlbe->mas1;
+ vcpu_e500->mas2 = gtlbe->mas2;
+ vcpu_e500->mas3 = gtlbe->mas3;
+ vcpu_e500->mas7 = gtlbe->mas7;
+
+ return EMULATE_DONE;
+}
+
+int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ int as = !!get_cur_sas(vcpu_e500);
+ unsigned int pid = get_cur_spid(vcpu_e500);
+ int esel, tlbsel;
+ struct tlbe *gtlbe = NULL;
+ gva_t ea;
+
+ ea = vcpu->arch.gpr[rb];
+
+ for (tlbsel = 0; tlbsel < 2; tlbsel++) {
+ esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, as);
+ if (esel >= 0) {
+ gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+ break;
+ }
+ }
+
+ if (gtlbe) {
+ vcpu_e500->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel)
+ | MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
+ vcpu_e500->mas1 = gtlbe->mas1;
+ vcpu_e500->mas2 = gtlbe->mas2;
+ vcpu_e500->mas3 = gtlbe->mas3;
+ vcpu_e500->mas7 = gtlbe->mas7;
+ } else {
+ int victim;
+
+ /* since we only have two TLBs, only lower bit is used. */
+ tlbsel = vcpu_e500->mas4 >> 28 & 0x1;
+ victim = (tlbsel == 0) ? tlb0_get_next_victim(vcpu_e500) : 0;
+
+ vcpu_e500->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(victim)
+ | MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
+ vcpu_e500->mas1 = (vcpu_e500->mas6 & MAS6_SPID0)
+ | (vcpu_e500->mas6 & (MAS6_SAS ? MAS1_TS : 0))
+ | (vcpu_e500->mas4 & MAS4_TSIZED(~0));
+ vcpu_e500->mas2 &= MAS2_EPN;
+ vcpu_e500->mas2 |= vcpu_e500->mas4 & MAS2_ATTRIB_MASK;
+ vcpu_e500->mas3 &= MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3;
+ vcpu_e500->mas7 = 0;
+ }
+
+ return EMULATE_DONE;
+}
+
+int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ u64 eaddr;
+ u64 raddr;
+ u32 tid;
+ struct tlbe *gtlbe;
+ int tlbsel, esel, stlbsel, sesel;
+
+ tlbsel = get_tlb_tlbsel(vcpu_e500);
+ esel = get_tlb_esel(vcpu_e500, tlbsel);
+
+ gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+
+ if (get_tlb_v(gtlbe) && tlbsel == 1) {
+ eaddr = get_tlb_eaddr(gtlbe);
+ tid = get_tlb_tid(gtlbe);
+ kvmppc_e500_tlb1_invalidate(vcpu_e500, eaddr,
+ get_tlb_end(gtlbe), tid);
+ }
+
+ gtlbe->mas1 = vcpu_e500->mas1;
+ gtlbe->mas2 = vcpu_e500->mas2;
+ gtlbe->mas3 = vcpu_e500->mas3;
+ gtlbe->mas7 = vcpu_e500->mas7;
+
+ KVMTRACE_5D(GTLB_WRITE, vcpu, vcpu_e500->mas0,
+ gtlbe->mas1, gtlbe->mas2, gtlbe->mas3, gtlbe->mas7,
+ handler);
+
+ /* Invalidate shadow mappings for the about-to-be-clobbered TLBE. */
+ if (tlbe_is_host_safe(vcpu, gtlbe)) {
+ switch (tlbsel) {
+ case 0:
+ /* TLB0 */
+ gtlbe->mas1 &= ~MAS1_TSIZE(~0);
+ gtlbe->mas1 |= MAS1_TSIZE(BOOKE_PAGESZ_4K);
+
+ stlbsel = 0;
+ sesel = kvmppc_e500_stlbe_map(vcpu_e500, 0, esel);
+
+ break;
+
+ case 1:
+ /* TLB1 */
+ eaddr = get_tlb_eaddr(gtlbe);
+ raddr = get_tlb_raddr(gtlbe);
+
+ /* Create a 4KB mapping on the host.
+ * If the guest wanted a large page,
+ * only the first 4KB is mapped here and the rest
+ * are mapped on the fly. */
+ stlbsel = 1;
+ sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr,
+ raddr >> PAGE_SHIFT, gtlbe);
+ break;
+
+ default:
+ BUG();
+ }
+ write_host_tlbe(vcpu_e500, stlbsel, sesel);
+ }
+
+ return EMULATE_DONE;
+}
+
+int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
+{
+ unsigned int as = !!(vcpu->arch.msr & MSR_IS);
+
+ return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as);
+}
+
+int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
+{
+ unsigned int as = !!(vcpu->arch.msr & MSR_DS);
+
+ return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as);
+}
+
+void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu)
+{
+ unsigned int as = !!(vcpu->arch.msr & MSR_IS);
+
+ kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.pc, as);
+}
+
+void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu)
+{
+ unsigned int as = !!(vcpu->arch.msr & MSR_DS);
+
+ kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.fault_dear, as);
+}
+
+gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int index,
+ gva_t eaddr)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ struct tlbe *gtlbe =
+ &vcpu_e500->guest_tlb[tlbsel_of(index)][esel_of(index)];
+ u64 pgmask = get_tlb_bytes(gtlbe) - 1;
+
+ return get_tlb_raddr(gtlbe) | (eaddr & pgmask);
+}
+
+void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ int tlbsel, i;
+
+ for (tlbsel = 0; tlbsel < 2; tlbsel++)
+ for (i = 0; i < vcpu_e500->guest_tlb_size[tlbsel]; i++)
+ kvmppc_e500_shadow_release(vcpu_e500, tlbsel, i);
+
+ /* discard all guest mapping */
+ _tlbil_all();
+}
+
+void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 eaddr, gpa_t gpaddr,
+ unsigned int index)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ int tlbsel = tlbsel_of(index);
+ int esel = esel_of(index);
+ int stlbsel, sesel;
+
+ switch (tlbsel) {
+ case 0:
+ stlbsel = 0;
+ sesel = esel;
+ break;
+
+ case 1: {
+ gfn_t gfn = gpaddr >> PAGE_SHIFT;
+ struct tlbe *gtlbe
+ = &vcpu_e500->guest_tlb[tlbsel][esel];
+
+ stlbsel = 1;
+ sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr, gfn, gtlbe);
+ break;
+ }
+
+ default:
+ BUG();
+ break;
+ }
+ write_host_tlbe(vcpu_e500, stlbsel, sesel);
+}
+
+int kvmppc_e500_tlb_search(struct kvm_vcpu *vcpu,
+ gva_t eaddr, unsigned int pid, int as)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ int esel, tlbsel;
+
+ for (tlbsel = 0; tlbsel < 2; tlbsel++) {
+ esel = kvmppc_e500_tlb_index(vcpu_e500, eaddr, tlbsel, pid, as);
+ if (esel >= 0)
+ return index_of(tlbsel, esel);
+ }
+
+ return -1;
+}
+
+void kvmppc_e500_tlb_setup(struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ struct tlbe *tlbe;
+
+ /* Insert large initial mapping for guest. */
+ tlbe = &vcpu_e500->guest_tlb[1][0];
+ tlbe->mas1 = MAS1_VALID | MAS1_TSIZE(BOOKE_PAGESZ_256M);
+ tlbe->mas2 = 0;
+ tlbe->mas3 = E500_TLB_SUPER_PERM_MASK;
+ tlbe->mas7 = 0;
+
+ /* 4K map for serial output. Used by kernel wrapper. */
+ tlbe = &vcpu_e500->guest_tlb[1][1];
+ tlbe->mas1 = MAS1_VALID | MAS1_TSIZE(BOOKE_PAGESZ_4K);
+ tlbe->mas2 = (0xe0004500 & 0xFFFFF000) | MAS2_I | MAS2_G;
+ tlbe->mas3 = (0xe0004500 & 0xFFFFF000) | E500_TLB_SUPER_PERM_MASK;
+ tlbe->mas7 = 0;
+}
+
+int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ tlb1_entry_num = mfspr(SPRN_TLB1CFG) & 0xFFF;
+
+ vcpu_e500->guest_tlb_size[0] = KVM_E500_TLB0_SIZE;
+ vcpu_e500->guest_tlb[0] =
+ kzalloc(sizeof(struct tlbe) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
+ if (vcpu_e500->guest_tlb[0] == NULL)
+ goto err_out;
+
+ vcpu_e500->shadow_tlb_size[0] = KVM_E500_TLB0_SIZE;
+ vcpu_e500->shadow_tlb[0] =
+ kzalloc(sizeof(struct tlbe) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
+ if (vcpu_e500->shadow_tlb[0] == NULL)
+ goto err_out_guest0;
+
+ vcpu_e500->guest_tlb_size[1] = KVM_E500_TLB1_SIZE;
+ vcpu_e500->guest_tlb[1] =
+ kzalloc(sizeof(struct tlbe) * KVM_E500_TLB1_SIZE, GFP_KERNEL);
+ if (vcpu_e500->guest_tlb[1] == NULL)
+ goto err_out_shadow0;
+
+ vcpu_e500->shadow_tlb_size[1] = tlb1_entry_num;
+ vcpu_e500->shadow_tlb[1] =
+ kzalloc(sizeof(struct tlbe) * tlb1_entry_num, GFP_KERNEL);
+ if (vcpu_e500->shadow_tlb[1] == NULL)
+ goto err_out_guest1;
+
+ vcpu_e500->shadow_pages[0] = (struct page **)
+ kzalloc(sizeof(struct page *) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
+ if (vcpu_e500->shadow_pages[0] == NULL)
+ goto err_out_shadow1;
+
+ vcpu_e500->shadow_pages[1] = (struct page **)
+ kzalloc(sizeof(struct page *) * tlb1_entry_num, GFP_KERNEL);
+ if (vcpu_e500->shadow_pages[1] == NULL)
+ goto err_out_page0;
+
+ return 0;
+
+err_out_page0:
+ kfree(vcpu_e500->shadow_pages[0]);
+err_out_shadow1:
+ kfree(vcpu_e500->shadow_tlb[1]);
+err_out_guest1:
+ kfree(vcpu_e500->guest_tlb[1]);
+err_out_shadow0:
+ kfree(vcpu_e500->shadow_tlb[0]);
+err_out_guest0:
+ kfree(vcpu_e500->guest_tlb[0]);
+err_out:
+ return -1;
+}
+
+void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ kfree(vcpu_e500->shadow_pages[1]);
+ kfree(vcpu_e500->shadow_pages[0]);
+ kfree(vcpu_e500->shadow_tlb[1]);
+ kfree(vcpu_e500->guest_tlb[1]);
+ kfree(vcpu_e500->shadow_tlb[0]);
+ kfree(vcpu_e500->guest_tlb[0]);
+}
diff --git a/arch/powerpc/kvm/e500_tlb.h b/arch/powerpc/kvm/e500_tlb.h
new file mode 100644
index 00000000000..45b064b7690
--- /dev/null
+++ b/arch/powerpc/kvm/e500_tlb.h
@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Yu Liu, yu.liu@freescale.com
+ *
+ * Description:
+ * This file is based on arch/powerpc/kvm/44x_tlb.h,
+ * by Hollis Blanchard <hollisb@us.ibm.com>.
+ *
+ * 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.
+ */
+
+#ifndef __KVM_E500_TLB_H__
+#define __KVM_E500_TLB_H__
+
+#include <linux/kvm_host.h>
+#include <asm/mmu-fsl-booke.h>
+#include <asm/tlb.h>
+#include <asm/kvm_e500.h>
+
+#define KVM_E500_TLB0_WAY_SIZE_BIT 7 /* Fixed */
+#define KVM_E500_TLB0_WAY_SIZE (1UL << KVM_E500_TLB0_WAY_SIZE_BIT)
+#define KVM_E500_TLB0_WAY_SIZE_MASK (KVM_E500_TLB0_WAY_SIZE - 1)
+
+#define KVM_E500_TLB0_WAY_NUM_BIT 1 /* No greater than 7 */
+#define KVM_E500_TLB0_WAY_NUM (1UL << KVM_E500_TLB0_WAY_NUM_BIT)
+#define KVM_E500_TLB0_WAY_NUM_MASK (KVM_E500_TLB0_WAY_NUM - 1)
+
+#define KVM_E500_TLB0_SIZE (KVM_E500_TLB0_WAY_SIZE * KVM_E500_TLB0_WAY_NUM)
+#define KVM_E500_TLB1_SIZE 16
+
+#define index_of(tlbsel, esel) (((tlbsel) << 16) | ((esel) & 0xFFFF))
+#define tlbsel_of(index) ((index) >> 16)
+#define esel_of(index) ((index) & 0xFFFF)
+
+#define E500_TLB_USER_PERM_MASK (MAS3_UX|MAS3_UR|MAS3_UW)
+#define E500_TLB_SUPER_PERM_MASK (MAS3_SX|MAS3_SR|MAS3_SW)
+#define MAS2_ATTRIB_MASK \
+ (MAS2_X0 | MAS2_X1)
+#define MAS3_ATTRIB_MASK \
+ (MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3 \
+ | E500_TLB_USER_PERM_MASK | E500_TLB_SUPER_PERM_MASK)
+
+extern void kvmppc_dump_tlbs(struct kvm_vcpu *);
+extern int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *, ulong);
+extern int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *);
+extern int kvmppc_e500_emul_tlbre(struct kvm_vcpu *);
+extern int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *, int, int);
+extern int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *, int);
+extern int kvmppc_e500_tlb_search(struct kvm_vcpu *, gva_t, unsigned int, int);
+extern void kvmppc_e500_tlb_put(struct kvm_vcpu *);
+extern void kvmppc_e500_tlb_load(struct kvm_vcpu *, int);
+extern int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *);
+extern void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *);
+extern void kvmppc_e500_tlb_setup(struct kvmppc_vcpu_e500 *);
+
+/* TLB helper functions */
+static inline unsigned int get_tlb_size(const struct tlbe *tlbe)
+{
+ return (tlbe->mas1 >> 8) & 0xf;
+}
+
+static inline gva_t get_tlb_eaddr(const struct tlbe *tlbe)
+{
+ return tlbe->mas2 & 0xfffff000;
+}
+
+static inline u64 get_tlb_bytes(const struct tlbe *tlbe)
+{
+ unsigned int pgsize = get_tlb_size(tlbe);
+ return 1ULL << 10 << (pgsize << 1);
+}
+
+static inline gva_t get_tlb_end(const struct tlbe *tlbe)
+{
+ u64 bytes = get_tlb_bytes(tlbe);
+ return get_tlb_eaddr(tlbe) + bytes - 1;
+}
+
+static inline u64 get_tlb_raddr(const struct tlbe *tlbe)
+{
+ u64 rpn = tlbe->mas7;
+ return (rpn << 32) | (tlbe->mas3 & 0xfffff000);
+}
+
+static inline unsigned int get_tlb_tid(const struct tlbe *tlbe)
+{
+ return (tlbe->mas1 >> 16) & 0xff;
+}
+
+static inline unsigned int get_tlb_ts(const struct tlbe *tlbe)
+{
+ return (tlbe->mas1 >> 12) & 0x1;
+}
+
+static inline unsigned int get_tlb_v(const struct tlbe *tlbe)
+{
+ return (tlbe->mas1 >> 31) & 0x1;
+}
+
+static inline unsigned int get_tlb_iprot(const struct tlbe *tlbe)
+{
+ return (tlbe->mas1 >> 30) & 0x1;
+}
+
+static inline unsigned int get_cur_pid(struct kvm_vcpu *vcpu)
+{
+ return vcpu->arch.pid & 0xff;
+}
+
+static inline unsigned int get_cur_spid(
+ const struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ return (vcpu_e500->mas6 >> 16) & 0xff;
+}
+
+static inline unsigned int get_cur_sas(
+ const struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ return vcpu_e500->mas6 & 0x1;
+}
+
+static inline unsigned int get_tlb_tlbsel(
+ const struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ /*
+ * Manual says that tlbsel has 2 bits wide.
+ * Since we only have two TLBs, only lower bit is used.
+ */
+ return (vcpu_e500->mas0 >> 28) & 0x1;
+}
+
+static inline unsigned int get_tlb_nv_bit(
+ const struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ return vcpu_e500->mas0 & 0xfff;
+}
+
+static inline unsigned int get_tlb_esel_bit(
+ const struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ return (vcpu_e500->mas0 >> 16) & 0xfff;
+}
+
+static inline unsigned int get_tlb_esel(
+ const struct kvmppc_vcpu_e500 *vcpu_e500,
+ int tlbsel)
+{
+ unsigned int esel = get_tlb_esel_bit(vcpu_e500);
+
+ if (tlbsel == 0) {
+ esel &= KVM_E500_TLB0_WAY_NUM_MASK;
+ esel |= ((vcpu_e500->mas2 >> 12) & KVM_E500_TLB0_WAY_SIZE_MASK)
+ << KVM_E500_TLB0_WAY_NUM_BIT;
+ } else {
+ esel &= KVM_E500_TLB1_SIZE - 1;
+ }
+
+ return esel;
+}
+
+static inline int tlbe_is_host_safe(const struct kvm_vcpu *vcpu,
+ const struct tlbe *tlbe)
+{
+ gpa_t gpa;
+
+ if (!get_tlb_v(tlbe))
+ return 0;
+
+ /* Does it match current guest AS? */
+ /* XXX what about IS != DS? */
+ if (get_tlb_ts(tlbe) != !!(vcpu->arch.msr & MSR_IS))
+ return 0;
+
+ gpa = get_tlb_raddr(tlbe);
+ if (!gfn_to_memslot(vcpu->kvm, gpa >> PAGE_SHIFT))
+ /* Mapping is not for RAM. */
+ return 0;
+
+ return 1;
+}
+
+#endif /* __KVM_E500_TLB_H__ */
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index d1d38daa93f..a561d6e8da1 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -30,6 +30,39 @@
#include <asm/disassemble.h>
#include "timing.h"
+#define OP_TRAP 3
+
+#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
+
void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
{
if (vcpu->arch.tcr & TCR_DIE) {
@@ -78,7 +111,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
kvmppc_set_exit_type(vcpu, EMULATED_INST_EXITS);
switch (get_op(inst)) {
- case 3: /* trap */
+ case OP_TRAP:
vcpu->arch.esr |= ESR_PTR;
kvmppc_core_queue_program(vcpu);
advance = 0;
@@ -87,31 +120,31 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
case 31:
switch (get_xop(inst)) {
- case 23: /* lwzx */
+ case OP_31_XOP_LWZX:
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
break;
- case 87: /* lbzx */
+ case OP_31_XOP_LBZX:
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
break;
- case 151: /* stwx */
+ case OP_31_XOP_STWX:
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
vcpu->arch.gpr[rs],
4, 1);
break;
- case 215: /* stbx */
+ case OP_31_XOP_STBX:
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
vcpu->arch.gpr[rs],
1, 1);
break;
- case 247: /* stbux */
+ case OP_31_XOP_STBUX:
rs = get_rs(inst);
ra = get_ra(inst);
rb = get_rb(inst);
@@ -126,12 +159,12 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
vcpu->arch.gpr[rs] = ea;
break;
- case 279: /* lhzx */
+ case OP_31_XOP_LHZX:
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
break;
- case 311: /* lhzux */
+ case OP_31_XOP_LHZUX:
rt = get_rt(inst);
ra = get_ra(inst);
rb = get_rb(inst);
@@ -144,7 +177,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
vcpu->arch.gpr[ra] = ea;
break;
- case 339: /* mfspr */
+ case OP_31_XOP_MFSPR:
sprn = get_sprn(inst);
rt = get_rt(inst);
@@ -185,7 +218,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
}
break;
- case 407: /* sthx */
+ case OP_31_XOP_STHX:
rs = get_rs(inst);
ra = get_ra(inst);
rb = get_rb(inst);
@@ -195,7 +228,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
2, 1);
break;
- case 439: /* sthux */
+ case OP_31_XOP_STHUX:
rs = get_rs(inst);
ra = get_ra(inst);
rb = get_rb(inst);
@@ -210,7 +243,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
vcpu->arch.gpr[ra] = ea;
break;
- case 467: /* mtspr */
+ case OP_31_XOP_MTSPR:
sprn = get_sprn(inst);
rs = get_rs(inst);
switch (sprn) {
@@ -246,7 +279,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
}
break;
- case 470: /* dcbi */
+ case OP_31_XOP_DCBI:
/* Do nothing. The guest is performing dcbi because
* hardware DMA is not snooped by the dcache, but
* emulated DMA either goes through the dcache as
@@ -254,15 +287,15 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
* coherence. */
break;
- case 534: /* lwbrx */
+ case OP_31_XOP_LWBRX:
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 0);
break;
- case 566: /* tlbsync */
+ case OP_31_XOP_TLBSYNC:
break;
- case 662: /* stwbrx */
+ case OP_31_XOP_STWBRX:
rs = get_rs(inst);
ra = get_ra(inst);
rb = get_rb(inst);
@@ -272,12 +305,12 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
4, 0);
break;
- case 790: /* lhbrx */
+ case OP_31_XOP_LHBRX:
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 0);
break;
- case 918: /* sthbrx */
+ case OP_31_XOP_STHBRX:
rs = get_rs(inst);
ra = get_ra(inst);
rb = get_rb(inst);
@@ -293,37 +326,37 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
}
break;
- case 32: /* lwz */
+ case OP_LWZ:
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
break;
- case 33: /* lwzu */
+ case OP_LWZU:
ra = get_ra(inst);
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed;
break;
- case 34: /* lbz */
+ case OP_LBZ:
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
break;
- case 35: /* lbzu */
+ 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;
break;
- case 36: /* stw */
+ case OP_STW:
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
4, 1);
break;
- case 37: /* stwu */
+ case OP_STWU:
ra = get_ra(inst);
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
@@ -331,13 +364,13 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed;
break;
- case 38: /* stb */
+ case OP_STB:
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
1, 1);
break;
- case 39: /* stbu */
+ case OP_STBU:
ra = get_ra(inst);
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
@@ -345,25 +378,25 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed;
break;
- case 40: /* lhz */
+ case OP_LHZ:
rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
break;
- case 41: /* lhzu */
+ 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;
break;
- case 44: /* sth */
+ case OP_STH:
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
2, 1);
break;
- case 45: /* sthu */
+ case OP_STHU:
ra = get_ra(inst);
rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs],
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 5f81256287f..9057335fdc6 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -216,46 +216,23 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
{
- kvmppc_core_destroy_mmu(vcpu);
+ kvmppc_mmu_destroy(vcpu);
}
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
- if (vcpu->guest_debug.enabled)
- kvmppc_core_load_guest_debugstate(vcpu);
-
kvmppc_core_vcpu_load(vcpu, cpu);
}
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
{
- if (vcpu->guest_debug.enabled)
- kvmppc_core_load_host_debugstate(vcpu);
-
- /* Don't leave guest TLB entries resident when being de-scheduled. */
- /* XXX It would be nice to differentiate between heavyweight exit and
- * sched_out here, since we could avoid the TLB flush for heavyweight
- * exits. */
- _tlbil_all();
kvmppc_core_vcpu_put(vcpu);
}
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
- struct kvm_debug_guest *dbg)
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+ struct kvm_guest_debug *dbg)
{
- int i;
-
- vcpu->guest_debug.enabled = dbg->enabled;
- if (vcpu->guest_debug.enabled) {
- for (i=0; i < ARRAY_SIZE(vcpu->guest_debug.bp); i++) {
- if (dbg->breakpoints[i].enabled)
- vcpu->guest_debug.bp[i] = dbg->breakpoints[i].address;
- else
- vcpu->guest_debug.bp[i] = 0;
- }
- }
-
- return 0;
+ return -EINVAL;
}
static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-01 08:30:55 +0000