Adds migration support for Branch History Rolling Buffer (BHRB) internal state.
Signed-off-by: Glenn Miles <mil...@linux.vnet.ibm.com> --- target/ppc/machine.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/target/ppc/machine.c b/target/ppc/machine.c index b195fb4dc8..89146969c8 100644 --- a/target/ppc/machine.c +++ b/target/ppc/machine.c @@ -314,6 +314,7 @@ static int cpu_post_load(void *opaque, int version_id) if (tcg_enabled()) { pmu_mmcr01a_updated(env); + hreg_bhrb_filter_update(env); } return 0; @@ -670,6 +671,27 @@ static const VMStateDescription vmstate_compat = { } }; +#ifdef TARGET_PPC64 +static bool bhrb_needed(void *opaque) +{ + PowerPCCPU *cpu = opaque; + return (cpu->env.flags & POWERPC_FLAG_BHRB) != 0; +} + +static const VMStateDescription vmstate_bhrb = { + .name = "cpu/bhrb", + .version_id = 1, + .minimum_version_id = 1, + .needed = bhrb_needed, + .fields = (VMStateField[]) { + VMSTATE_UINTTL(env.bhrb_num_entries, PowerPCCPU), + VMSTATE_UINTTL(env.bhrb_offset, PowerPCCPU), + VMSTATE_UINT64_ARRAY(env.bhrb, PowerPCCPU, BHRB_MAX_NUM_ENTRIES), + VMSTATE_END_OF_LIST() + } +}; +#endif + const VMStateDescription vmstate_ppc_cpu = { .name = "cpu", .version_id = 5, @@ -716,6 +738,7 @@ const VMStateDescription vmstate_ppc_cpu = { #ifdef TARGET_PPC64 &vmstate_tm, &vmstate_slb, + &vmstate_bhrb, #endif /* TARGET_PPC64 */ &vmstate_tlb6xx, &vmstate_tlbemb, -- 2.31.1