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| author | Frederic Barrat <fbarrat@linux.vnet.ibm.com> | 2018-01-23 20:57:11 +0100 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2018-01-30 20:42:38 -0600 |
| commit | 4f24ef23411d270ef392e1dc280479c0f5304305 (patch) | |
| tree | 6d3645b97a4ab5a24808a521360913df15c9f8ac /include/xive.h | |
| parent | ea9b3080559a995ef80772749b36da3031b388a4 (diff) | |
| download | skiboot-4f24ef23411d270ef392e1dc280479c0f5304305.zip skiboot-4f24ef23411d270ef392e1dc280479c0f5304305.tar.gz skiboot-4f24ef23411d270ef392e1dc280479c0f5304305.tar.bz2 | |
xive: Mask MMIO load/store to bad location FIR
For opencapi, the trigger page of an interrupt is mapped to user
space. The intent is to write the page to raise an interrupt but
there's nothing to prevent a user process from reading it, which has
the infortunate consequence of checkstopping the system.
Mask the FIR bit raised when an MMIO operation targets an invalid
location. It's the recommendation from recent documentation and
hostboot is expected to mask it at some point. In the meantime, let's
play it safe.
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'include/xive.h')
| -rw-r--r-- | include/xive.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/xive.h b/include/xive.h index 5262cb4..47dc2c2 100644 --- a/include/xive.h +++ b/include/xive.h @@ -72,6 +72,8 @@ #define CQ_RST_CTL 0x118 #define X_CQ_FIRMASK 0x33 #define CQ_FIRMASK 0x198 +#define CQ_FIR_PB_RCMDX_CI_ERR1 PPC_BIT(19) +#define CQ_FIR_VC_INFO_ERROR_0_1 PPC_BITMASK(62,63) #define X_CQ_FIRMASK_AND 0x34 #define CQ_FIRMASK_AND 0x1a0 #define X_CQ_FIRMASK_OR 0x35 |