diff options
| author | Alexander Bulekov <alxndr@bu.edu> | 2023-05-26 09:38:50 +0200 |
|---|---|---|
| committer | Daniel Henrique Barboza <danielhb413@gmail.com> | 2023-05-28 07:13:54 -0300 |
| commit | 76f9ebffcd41b62ae9ec26a1c25676f2ae1d9cc3 (patch) | |
| tree | f15f4585b3f7e5101d07ad0a5966db64cfa230c6 /hw | |
| parent | 7f65ebb0e79b43602d516aa29f9b13ccc7224d52 (diff) | |
pnv_lpc: disable reentrancy detection for lpc-hc
As lpc-hc is designed for re-entrant calls from xscom, mark it
re-entrancy safe.
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
[clg: mark opb_master_regs as re-entrancy safe also ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230526073850.2772197-1-clg@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ppc/pnv_lpc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/ppc/pnv_lpc.c b/hw/ppc/pnv_lpc.c index 01f44c19eb..605d390861 100644 --- a/hw/ppc/pnv_lpc.c +++ b/hw/ppc/pnv_lpc.c @@ -734,10 +734,13 @@ static void pnv_lpc_realize(DeviceState *dev, Error **errp) /* Create MMIO regions for LPC HC and OPB registers */ memory_region_init_io(&lpc->opb_master_regs, OBJECT(dev), &opb_master_ops, lpc, "lpc-opb-master", LPC_OPB_REGS_OPB_SIZE); + lpc->opb_master_regs.disable_reentrancy_guard = true; memory_region_add_subregion(&lpc->opb_mr, LPC_OPB_REGS_OPB_ADDR, &lpc->opb_master_regs); memory_region_init_io(&lpc->lpc_hc_regs, OBJECT(dev), &lpc_hc_ops, lpc, "lpc-hc", LPC_HC_REGS_OPB_SIZE); + /* xscom writes to lpc-hc. As such mark lpc-hc re-entrancy safe */ + lpc->lpc_hc_regs.disable_reentrancy_guard = true; memory_region_add_subregion(&lpc->opb_mr, LPC_HC_REGS_OPB_ADDR, &lpc->lpc_hc_regs); |