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>
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index a85916e..c5837dd 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1099,6 +1099,20 @@
*/
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_) \
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index ef691fe..dfa5a26 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -865,6 +865,25 @@
}
#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 @@
}
#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");
diff --git a/target-ppc/machine.c b/target-ppc/machine.c
index c8f9835..c801b82 100644
--- a/target-ppc/machine.c
+++ b/target-ppc/machine.c
@@ -249,6 +249,38 @@
},
};
+#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 @@
.needed = sr_needed,
} , {
#ifdef TARGET_PPC64
+ .vmsd = &vmstate_tm,
+ .needed = tm_needed,
+ } , {
.vmsd = &vmstate_slb,
.needed = slb_needed,
} , {
