diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2019-03-14 14:13:34 +0100 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-03-18 09:39:57 +0100 |
commit | ca9b7e29de3e79d6fe21bfc21297770a98d54e58 (patch) | |
tree | b5e009179f964299b85c3fb471999a851cc60406 /hw/pci | |
parent | 4f5604c41d4a4d41964dfacaa87b08178abcc838 (diff) |
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 <pbonzini@redhat.com>
Diffstat (limited to 'hw/pci')
-rw-r--r-- | hw/pci/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/pci/Kconfig b/hw/pci/Kconfig index 3b8638b51d..77f8b005ff 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 |