Re: [PATCH 1/2] hw/pci/msix: Warn on PBA writes

2025-01-21 Thread Philippe Mathieu-Daudé
On 17/1/25 18:28, Nicholas Piggin wrote: Of the MSI-X PBA pending bits, the PCI Local Bus Specification says: Software should never write, and should only read Pending Bits. If software writes to Pending Bits, the result is undefined. Log a GUEST_ERROR message if the PBA is written to

Re: [PATCH 1/2] hw/pci/msix: Warn on PBA writes

2025-01-19 Thread Phil Dennis-Jordan
On Fri, 17 Jan 2025 at 18:29, Nicholas Piggin wrote: > Of the MSI-X PBA pending bits, the PCI Local Bus Specification says: > > Software should never write, and should only read > Pending Bits. If software writes to Pending Bits, the > result is undefined. > > Log a GUEST_ERROR message if t

Re: [PATCH 1/2] hw/pci/msix: Warn on PBA writes

2025-01-17 Thread Akihiko Odaki
On 2025/01/18 2:28, Nicholas Piggin wrote: Of the MSI-X PBA pending bits, the PCI Local Bus Specification says: Software should never write, and should only read Pending Bits. If software writes to Pending Bits, the result is undefined. Log a GUEST_ERROR message if the PBA is written t

[PATCH 1/2] hw/pci/msix: Warn on PBA writes

2025-01-17 Thread Nicholas Piggin
Of the MSI-X PBA pending bits, the PCI Local Bus Specification says: Software should never write, and should only read Pending Bits. If software writes to Pending Bits, the result is undefined. Log a GUEST_ERROR message if the PBA is written to by software. Cc: Michael S. Tsirkin Cc: Marc