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Re: [PATCH] x86/vpci: fix handling of BAR overlaps with non-hole regions
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: "Lira, Victor M" <victorm.lira@xxxxxxx>
- Date: Thu, 15 May 2025 17:20:42 -0700
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Hello,
I tested the patch based on staging (f1f351df0309) on hardware that has
the issue of the overlap (0xfea00000 in the logs attached).
Linux 6.11 defconfig + CONFIG_BLK_DEV_NVME
Without the patch we see these messages and the NVME is not accessible:
[ 313.438979] nvme nvme0: I/O tag 4 (2004) QID 0 timeout, completion
polled
(XEN) [ 322.972867] arch/x86/hvm/emulate.c:417:d0v1 unhandled memory
write to 0xfea0300c size 4
With the patch we see only the added warning and the NVME is accessible:
(XEN) [ 4.746374] arch/x86/pci.c:109:d[IDLE]v0 0000:02:00.0: BAR at
[fea00, fea03] not in memory map hole
Tested-by: Victor M Lira <victorm.lira@xxxxxxx>
Victor Attachment:
test-without.log
Description: Text document
Attachment:
test-patched.log
Description: Text document
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