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[Stable-7.2.6 08/51] lsi53c895a: disable reentrancy detection for script
From: |
Michael Tokarev |
Subject: |
[Stable-7.2.6 08/51] lsi53c895a: disable reentrancy detection for script RAM |
Date: |
Mon, 11 Sep 2023 11:01:59 +0300 |
From: Alexander Bulekov <alxndr@bu.edu>
As the code is designed to use the memory APIs to access the script ram,
disable reentrancy checks for the pseudo-RAM ram_io MemoryRegion.
In the future, ram_io may be converted from an IO to a proper RAM MemoryRegion.
Reported-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <20230427211013.2994127-6-alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit bfd6e7ae6a72b84e2eb9574f56e6ec037f05182c)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c
index 42532c4744..4ece478a37 100644
--- a/hw/scsi/lsi53c895a.c
+++ b/hw/scsi/lsi53c895a.c
@@ -2313,6 +2313,12 @@ static void lsi_scsi_realize(PCIDevice *dev, Error
**errp)
memory_region_init_io(&s->io_io, OBJECT(s), &lsi_io_ops, s,
"lsi-io", 256);
+ /*
+ * Since we use the address-space API to interact with ram_io, disable the
+ * re-entrancy guard.
+ */
+ s->ram_io.disable_reentrancy_guard = true;
+
address_space_init(&s->pci_io_as, pci_address_space_io(dev), "lsi-pci-io");
qdev_init_gpio_out(d, &s->ext_irq, 1);
--
2.39.2
- [Stable-7.2.6 00/51] v2 Patch Round-up for stable 7.2.6, freeze on 2023-09-19, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 01/51] gitlab-ci: check-dco.py: switch from master to stable-7.2 branch, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 03/51] memory: prevent dma-reentracy issues, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 02/51] python: drop pipenv, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 06/51] checkpatch: add qemu_bh_new/aio_bh_new checks, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 05/51] async: avoid use-after-free on re-entrancy guard, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 04/51] async: Add an optional reentrancy guard to the BH API, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 07/51] hw: replace most qemu_bh_new calls with qemu_bh_new_guarded, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 08/51] lsi53c895a: disable reentrancy detection for script RAM,
Michael Tokarev <=
- [Stable-7.2.6 09/51] lsi53c895a: disable reentrancy detection for MMIO region, too, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 11/51] raven: disable reentrancy detection for iomem, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 10/51] bcm2835_property: disable reentrancy detection for iomem, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 12/51] apic: disable reentrancy detection for apic-msi, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 13/51] loongarch: mark loongarch_ipi_iocsr re-entrnacy safe, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 14/51] pnv_lpc: disable reentrancy detection for lpc-hc, Michael Tokarev, 2023/09/11
- [Stable-7.2.6 43/51] hw/ide/ahci: PxCI should not get cleared when ERR_STAT is set, Michael Tokarev, 2023/09/11