diff options
| author | Aravinda Prasad <arawinda.p@gmail.com> | 2020-01-31 00:14:20 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2020-02-03 11:33:10 +1100 |
| commit | 81fe70e443ef7e3b5e8f2e30336029ed5b968741 (patch) | |
| tree | dfb47c05978046a5e92a037acd64b9187e1bb52c /include | |
| parent | 9ac703ac5f9e830ab96d38dc77061bd4be76cf60 (diff) | |
target/ppc: Build rtas error log upon an MCE
Upon a machine check exception (MCE) in a guest address space,
KVM causes a guest exit to enable QEMU to build and pass the
error to the guest in the PAPR defined rtas error log format.
This patch builds the rtas error log, copies it to the rtas_addr
and then invokes the guest registered machine check handler. The
handler in the guest takes suitable action(s) depending on the type
and criticality of the error. For example, if an error is
unrecoverable memory corruption in an application inside the
guest, then the guest kernel sends a SIGBUS to the application.
For recoverable errors, the guest performs recovery actions and
logs the error.
Signed-off-by: Aravinda Prasad <arawinda.p@gmail.com>
[Assume SLOF has allocated enough room for rtas error log]
Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200130184423.20519-5-ganeshgr@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/ppc/spapr.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 909d3976f9..652a5514e8 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -727,6 +727,9 @@ void spapr_load_rtas(SpaprMachineState *spapr, void *fdt, hwaddr addr); #define RTAS_ERROR_LOG_MAX 2048 +/* Offset from rtas-base where error log is placed */ +#define RTAS_ERROR_LOG_OFFSET 0x30 + #define RTAS_EVENT_SCAN_RATE 1 /* This helper should be used to encode interrupt specifiers when the related @@ -813,7 +816,7 @@ void spapr_clear_pending_events(SpaprMachineState *spapr); int spapr_max_server_number(SpaprMachineState *spapr); void spapr_store_hpte(PowerPCCPU *cpu, hwaddr ptex, uint64_t pte0, uint64_t pte1); -void spapr_mce_req_event(PowerPCCPU *cpu); +void spapr_mce_req_event(PowerPCCPU *cpu, bool recovered); /* DRC callbacks. */ void spapr_core_release(DeviceState *dev); @@ -904,4 +907,5 @@ void spapr_check_pagesize(SpaprMachineState *spapr, hwaddr pagesize, #define SPAPR_OV5_XIVE_BOTH 0x80 /* Only to advertise on the platform */ void spapr_set_all_lpcrs(target_ulong value, target_ulong mask); +hwaddr spapr_get_rtas_addr(void); #endif /* HW_SPAPR_H */ |