From ca9b7e29de3e79d6fe21bfc21297770a98d54e58 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Thu, 14 Mar 2019 14:13:34 +0100 Subject: kconfig: add CONFIG_MSI_NONBROKEN Not all interrupt controllers have a working implementation of message-signalled interrupts; in some cases, the guest may expect MSI to work but it won't due to the buggy or lacking emulation. In QEMU this is represented by the "msi_nonbroken" variable. This patch adds a new configuration symbol enabled whenever the binary contains an interrupt controller that will set "msi_nonbroken". We can then use it to remove devices that cannot be possibly added to the machine, because they require MSI. Signed-off-by: Paolo Bonzini --- hw/pci/Kconfig | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'hw/pci') diff --git a/hw/pci/Kconfig b/hw/pci/Kconfig index 3b8638b..77f8b00 100644 --- a/hw/pci/Kconfig +++ b/hw/pci/Kconfig @@ -7,3 +7,9 @@ config PCI_EXPRESS config PCI_DEVICES bool + +config MSI_NONBROKEN + # selected by interrupt controllers that do not support MSI, + # or support it and have a good implementation. See commit + # 47d2b0f33c664533b8dbd5cb17faa8e6a01afe1f. + bool -- cgit v1.1