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Re: [PATCH v2] piix: fix regression during unplug in Xen HVM domUs
- To: Bernhard Beschow <shentey@xxxxxxxxx>
- From: Olaf Hering <olaf@xxxxxxxxx>
- Date: Tue, 27 Jun 2023 13:40:28 +0200
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- Cc: qemu-devel@xxxxxxxxxx, Paolo Bonzini <pbonzini@xxxxxxxxxx>, John Snow <jsnow@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- Delivery-date: Tue, 27 Jun 2023 11:40:51 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Tue, 27 Jun 2023 10:12:50 +0000 Bernhard Beschow <shentey@xxxxxxxxx>:
> Bits 4..15 represent the BAR address, and pci_set_byte() only clears bits
> 4..7, leaving bits 8..15 unchanged. Perhaps this causes the BAR to be moved
> into the UHCI region? Does changing the call to pci_set_long() fix the
> problem?
Thanks, it seems this fixes the issue. Let me verify this with a clean build.
Olaf
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