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ppc/spapr: Refactor h_client_architecture_support() CPU parsing code 

The h_client_architecture_support() function has become quite big
and nested already. So factor out the code that takes care of the
sPAPR compatibility PVRs (which will be modified by the following
patches).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Thomas Huth 2016-06-07 17:39:36 +02:00 committed by David Gibson
parent 2c96c379ac
commit 7386ae6372
1 changed files with 36 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
hw/ppc/spapr_hcall.c
View File

@ -922,6 +922,39 @@ static void do_set_compat(void *arg)
((cpuver) == CPU_POWERPC_LOGICAL_2_06_PLUS) ? 2061 : \
((cpuver) == CPU_POWERPC_LOGICAL_2_07) ? 2070 : 0)
static void cas_handle_compat_cpu(PowerPCCPUClass *pcc, uint32_t pvr,
unsigned max_lvl, unsigned *compat_lvl,
unsigned *cpu_version)
{
unsigned lvl = get_compat_level(pvr);
bool is205, is206;
if (!lvl) {
return;
}
/* If it is a logical PVR, try to determine the highest level */
is205 = (pcc->pcr_mask & PCR_COMPAT_2_05) &&
(lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_05));
is206 = (pcc->pcr_mask & PCR_COMPAT_2_06) &&
((lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_06)) ||
(lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_06_PLUS)));
if (is205 || is206) {
if (!max_lvl) {
/* User did not set the level, choose the highest */
if (*compat_lvl <= lvl) {
*compat_lvl = lvl;
*cpu_version = pvr;
}
} else if (max_lvl >= lvl) {
/* User chose the level, don't set higher than this */
*compat_lvl = lvl;
*cpu_version = pvr;
}
}
}
#define OV5_DRCONF_MEMORY 0x20
static target_ulong h_client_architecture_support(PowerPCCPU *cpu_,
@ -931,7 +964,7 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu_,
{
target_ulong list = ppc64_phys_to_real(args[0]);
target_ulong ov_table, ov5;
PowerPCCPUClass *pcc_ = POWERPC_CPU_GET_CLASS(cpu_);
PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu_);
CPUState *cs;
bool cpu_match = false, cpu_update = true, memory_update = false;
unsigned old_cpu_version = cpu_->cpu_version;
@ -958,29 +991,7 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu_,
cpu_match = true;
cpu_version = cpu_->cpu_version;
} else if (!cpu_match) {
/* If it is a logical PVR, try to determine the highest level */
unsigned lvl = get_compat_level(pvr);
if (lvl) {
bool is205 = (pcc_->pcr_mask & PCR_COMPAT_2_05) &&
(lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_05));
bool is206 = (pcc_->pcr_mask & PCR_COMPAT_2_06) &&
((lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_06)) ||
(lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_06_PLUS)));
if (is205 || is206) {
if (!max_lvl) {
/* User did not set the level, choose the highest */
if (compat_lvl <= lvl) {
compat_lvl = lvl;
cpu_version = pvr;
}
} else if (max_lvl >= lvl) {
/* User chose the level, don't set higher than this */
compat_lvl = lvl;
cpu_version = pvr;
}
}
}
cas_handle_compat_cpu(pcc, pvr, max_lvl, &compat_lvl, &cpu_version);
}
/* Terminator record */
if (~pvr_mask & pvr) {
@ -990,7 +1001,7 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu_,
/* Parsing finished */
trace_spapr_cas_pvr(cpu_->cpu_version, cpu_match,
cpu_version, pcc_->pcr_mask);
cpu_version, pcc->pcr_mask);
/* Update CPUs */
if (old_cpu_version != cpu_version) {