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KVM: target-ppc: Enable TM state migration 

This adds migration support for registers saved before Transactional
Memory (TM) transaction started.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexey Kardashevskiy 2014-06-04 22:51:00 +10:00 committed by Alexander Graf
parent cdcdda27fc
commit 80b3f79b99
3 changed files with 87 additions and 0 deletions
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14
target-ppc/cpu.h
View File

@ -1099,6 +1099,20 @@ struct CPUPPCState {
*/
uint8_t fit_period[4];
uint8_t wdt_period[4];
/* Transactional memory state */
target_ulong tm_gpr[32];
ppc_avr_t tm_vsr[64];
uint64_t tm_cr;
uint64_t tm_lr;
uint64_t tm_ctr;
uint64_t tm_fpscr;
uint64_t tm_amr;
uint64_t tm_ppr;
uint64_t tm_vrsave;
uint32_t tm_vscr;
uint64_t tm_dscr;
uint64_t tm_tar;
};
#define SET_FIT_PERIOD(a_, b_, c_, d_) \

38
target-ppc/kvm.c
View File

@ -865,6 +865,25 @@ int kvm_arch_put_registers(CPUState *cs, int level)
}
#ifdef TARGET_PPC64
if (msr_ts) {
for (i = 0; i < ARRAY_SIZE(env->tm_gpr); i++) {
kvm_set_one_reg(cs, KVM_REG_PPC_TM_GPR(i), &env->tm_gpr[i]);
}
for (i = 0; i < ARRAY_SIZE(env->tm_vsr); i++) {
kvm_set_one_reg(cs, KVM_REG_PPC_TM_VSR(i), &env->tm_vsr[i]);
}
kvm_set_one_reg(cs, KVM_REG_PPC_TM_CR, &env->tm_cr);
kvm_set_one_reg(cs, KVM_REG_PPC_TM_LR, &env->tm_lr);
kvm_set_one_reg(cs, KVM_REG_PPC_TM_CTR, &env->tm_ctr);
kvm_set_one_reg(cs, KVM_REG_PPC_TM_FPSCR, &env->tm_fpscr);
kvm_set_one_reg(cs, KVM_REG_PPC_TM_AMR, &env->tm_amr);
kvm_set_one_reg(cs, KVM_REG_PPC_TM_PPR, &env->tm_ppr);
kvm_set_one_reg(cs, KVM_REG_PPC_TM_VRSAVE, &env->tm_vrsave);
kvm_set_one_reg(cs, KVM_REG_PPC_TM_VSCR, &env->tm_vscr);
kvm_set_one_reg(cs, KVM_REG_PPC_TM_DSCR, &env->tm_dscr);
kvm_set_one_reg(cs, KVM_REG_PPC_TM_TAR, &env->tm_tar);
}
if (cap_papr) {
if (kvm_put_vpa(cs) < 0) {
DPRINTF("Warning: Unable to set VPA information to KVM\n");
@ -1091,6 +1110,25 @@ int kvm_arch_get_registers(CPUState *cs)
}
#ifdef TARGET_PPC64
if (msr_ts) {
for (i = 0; i < ARRAY_SIZE(env->tm_gpr); i++) {
kvm_get_one_reg(cs, KVM_REG_PPC_TM_GPR(i), &env->tm_gpr[i]);
}
for (i = 0; i < ARRAY_SIZE(env->tm_vsr); i++) {
kvm_get_one_reg(cs, KVM_REG_PPC_TM_VSR(i), &env->tm_vsr[i]);
}
kvm_get_one_reg(cs, KVM_REG_PPC_TM_CR, &env->tm_cr);
kvm_get_one_reg(cs, KVM_REG_PPC_TM_LR, &env->tm_lr);
kvm_get_one_reg(cs, KVM_REG_PPC_TM_CTR, &env->tm_ctr);
kvm_get_one_reg(cs, KVM_REG_PPC_TM_FPSCR, &env->tm_fpscr);
kvm_get_one_reg(cs, KVM_REG_PPC_TM_AMR, &env->tm_amr);
kvm_get_one_reg(cs, KVM_REG_PPC_TM_PPR, &env->tm_ppr);
kvm_get_one_reg(cs, KVM_REG_PPC_TM_VRSAVE, &env->tm_vrsave);
kvm_get_one_reg(cs, KVM_REG_PPC_TM_VSCR, &env->tm_vscr);
kvm_get_one_reg(cs, KVM_REG_PPC_TM_DSCR, &env->tm_dscr);
kvm_get_one_reg(cs, KVM_REG_PPC_TM_TAR, &env->tm_tar);
}
if (cap_papr) {
if (kvm_get_vpa(cs) < 0) {
DPRINTF("Warning: Unable to get VPA information from KVM\n");

35
target-ppc/machine.c
View File

@ -249,6 +249,38 @@ static const VMStateDescription vmstate_vsx = {
},
};
#ifdef TARGET_PPC64
/* Transactional memory state */
static bool tm_needed(void *opaque)
{
PowerPCCPU *cpu = opaque;
CPUPPCState *env = &cpu->env;
return msr_ts;
}
static const VMStateDescription vmstate_tm = {
.name = "cpu/tm",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.fields = (VMStateField []) {
VMSTATE_UINTTL_ARRAY(env.tm_gpr, PowerPCCPU, 32),
VMSTATE_AVR_ARRAY(env.tm_vsr, PowerPCCPU, 64),
VMSTATE_UINT64(env.tm_cr, PowerPCCPU),
VMSTATE_UINT64(env.tm_lr, PowerPCCPU),
VMSTATE_UINT64(env.tm_ctr, PowerPCCPU),
VMSTATE_UINT64(env.tm_fpscr, PowerPCCPU),
VMSTATE_UINT64(env.tm_amr, PowerPCCPU),
VMSTATE_UINT64(env.tm_ppr, PowerPCCPU),
VMSTATE_UINT64(env.tm_vrsave, PowerPCCPU),
VMSTATE_UINT32(env.tm_vscr, PowerPCCPU),
VMSTATE_UINT64(env.tm_dscr, PowerPCCPU),
VMSTATE_UINT64(env.tm_tar, PowerPCCPU),
VMSTATE_END_OF_LIST()
},
};
#endif
static bool sr_needed(void *opaque)
{
#ifdef TARGET_PPC64
@ -510,6 +542,9 @@ const VMStateDescription vmstate_ppc_cpu = {
.needed = sr_needed,
} , {
#ifdef TARGET_PPC64
.vmsd = &vmstate_tm,
.needed = tm_needed,
} , {
.vmsd = &vmstate_slb,
.needed = slb_needed,
} , {