void get_mce_status()
{
int banks = 0;
u64 cap = 0;
u64 val = 0;
int i = 0;
printk("Enter:%s", __func__);
rdmsrl(MSR_IA32_MCG_CAP, cap);
banks = min_t(unsigned, MAX_NR_BANKS, cap & 0xff);
printk("banks:%0x, cap:%0x\n", banks, cap);
for (i = 0; i < banks; i++) {
rdmsrl(MSR_IA32_MCx_STATUS(i), val);
if(val & 0x8000000000000000) { //64bit
printk("i = %d, status: val:%lx ", i, val);
if(val & 0x0400000000000000) { //58bit
rdmsrl(MSR_IA32_MCx_ADDR(i), val);
printk("i=%d, addr: val:%lx", i, val);
}
if(val & 0x0800000000000000) { //58bit
rdmsrl(MSR_IA32_MCx_MISC(i), val);
printk("i=%d, misc: val:%lx ", i, val);
}
}
}
rdmsrl(MSR_IA32_MCG_STATUS, val);
printk("mcg_status:%0x\n", val);
printk("\n");
}
static void mcabank_clear(int banknum)
{
uint64_t status;
status = mca_rdmsr(MSR_IA32_MCx_STATUS(banknum));
if (status & MCi_STATUS_ADDRV)
mca_wrmsr(MSR_IA32_MCx_ADDR(banknum), 0x0ULL);
if (status & MCi_STATUS_MISCV)
mca_wrmsr(MSR_IA32_MCx_MISC(banknum), 0x0ULL);
mca_wrmsr(MSR_IA32_MCx_STATUS(banknum), 0x0ULL);
}
static struct mcinfo_bank *mca_init_bank(enum mca_source who,
struct mc_info *mi, int bank)
{
struct mcinfo_bank *mib;
uint64_t addr=0, misc = 0;
if (!mi)
return NULL;
mib = x86_mcinfo_reserve(mi, sizeof(struct mcinfo_bank));
if (!mib)
{
mi->flags |= MCINFO_FLAGS_UNCOMPLETE;
return NULL;
}
memset(mib, 0, sizeof (struct mcinfo_bank));
mib->mc_status = mca_rdmsr(MSR_IA32_MCx_STATUS(bank));
mib->common.type = MC_TYPE_BANK;
mib->common.size = sizeof (struct mcinfo_bank);
mib->mc_bank = bank;
addr = misc = 0;
if (mib->mc_status & MCi_STATUS_MISCV)
mib->mc_misc = mca_rdmsr(MSR_IA32_MCx_MISC(bank));
if (mib->mc_status & MCi_STATUS_ADDRV)
{
mib->mc_addr = mca_rdmsr(MSR_IA32_MCx_ADDR(bank));
if (mfn_valid(paddr_to_pfn(mib->mc_addr))) {
struct domain *d;
d = maddr_get_owner(mib->mc_addr);
if (d != NULL && (who == MCA_POLLER ||
who == MCA_CMCI_HANDLER))
mib->mc_domid = d->domain_id;
}
}
if (who == MCA_CMCI_HANDLER) {
mib->mc_ctrl2 = mca_rdmsr(MSR_IA32_MC0_CTL2 + bank);
rdtscll(mib->mc_tsc);
}
return mib;
}
static void mca_init_bank(enum mca_source who,
struct mc_info *mi, int bank)
{
struct mcinfo_bank *mib;
if (!mi)
return;
mib = x86_mcinfo_reserve(mi, sizeof(*mib));
if (!mib)
{
mi->flags |= MCINFO_FLAGS_UNCOMPLETE;
return;
}
mib->mc_status = mca_rdmsr(MSR_IA32_MCx_STATUS(bank));
mib->common.type = MC_TYPE_BANK;
mib->common.size = sizeof (struct mcinfo_bank);
mib->mc_bank = bank;
if (mib->mc_status & MCi_STATUS_MISCV)
mib->mc_misc = mca_rdmsr(MSR_IA32_MCx_MISC(bank));
if (mib->mc_status & MCi_STATUS_ADDRV)
mib->mc_addr = mca_rdmsr(MSR_IA32_MCx_ADDR(bank));
if ((mib->mc_status & MCi_STATUS_MISCV) &&
(mib->mc_status & MCi_STATUS_ADDRV) &&
(mc_check_addr(mib->mc_status, mib->mc_misc, MC_ADDR_PHYSICAL)) &&
(who == MCA_POLLER || who == MCA_CMCI_HANDLER) &&
(mfn_valid(paddr_to_pfn(mib->mc_addr))))
{
struct domain *d;
d = maddr_get_owner(mib->mc_addr);
if (d)
mib->mc_domid = d->domain_id;
}
if (who == MCA_CMCI_HANDLER) {
mib->mc_ctrl2 = mca_rdmsr(MSR_IA32_MC0_CTL2 + bank);
rdtscll(mib->mc_tsc);
}
}