motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-09 10:34:58 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/ppc: add basic support for PTCR on POWER9

Browse source 
The Partition Table Control Register (PTCR) is a hypervisor privileged
SPR. It contains the host real address of the Partition Table and its
size.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2018-04-24 13:30:42 +02:00 • committed by David Gibson
parent ef0d74212a
commit 4a7518e0fd
7 changed files with 71 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

29
target/ppc/mmu_helper.c
View file

@ -2028,6 +2028,35 @@ void ppc_store_sdr1(CPUPPCState *env, target_ulong value)
env->spr[SPR_SDR1] = value;
}
#if defined(TARGET_PPC64)
void ppc_store_ptcr(CPUPPCState *env, target_ulong value)
{
PowerPCCPU *cpu = ppc_env_get_cpu(env);
target_ulong ptcr_mask = PTCR_PATB | PTCR_PATS;
target_ulong patbsize = value & PTCR_PATS;
qemu_log_mask(CPU_LOG_MMU, "%s: " TARGET_FMT_lx "\n", __func__, value);
assert(!cpu->vhyp);
assert(env->mmu_model & POWERPC_MMU_3_00);
if (value & ~ptcr_mask) {
error_report("Invalid bits 0x"TARGET_FMT_lx" set in PTCR",
value & ~ptcr_mask);
value &= ptcr_mask;
}
if (patbsize > 24) {
error_report("Invalid Partition Table size 0x" TARGET_FMT_lx
" stored in PTCR", patbsize);
return;
}
env->spr[SPR_PTCR] = value;
}
#endif /* defined(TARGET_PPC64) */
/* Segment registers load and store */
target_ulong helper_load_sr(CPUPPCState *env, target_ulong sr_num)
{