[v1] x86, KVM changes for 2023-10-26

[PULL 12/24] kvm: require KVM_IRQFD for kernel irqchip

Paolo Bonzini posted 24 patches 1 year, 1 month ago

Diff against v1
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Maintainers: Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Peter Maydell <peter.maydell@linaro.org>, Cornelia Huck <cohuck@redhat.com>, Halil Pasic <pasic@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Thomas Huth <thuth@redhat.com>, Peter Xu <peterx@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Marcelo Tosatti <mtosatti@redhat.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Weiwei Li <liweiwei@iscas.ac.cn>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>

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[PULL 12/24] kvm: require KVM_IRQFD for kernel irqchip

Posted by Paolo Bonzini 1 year, 1 month ago

KVM_IRQFD was introduced in Linux 2.6.32, and since then it has always been
available on architectures that support an in-kernel interrupt controller.
We can require it unconditionally.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 include/sysemu/kvm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 575dee53b39..16d58d2598a 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -167,6 +167,7 @@ extern bool kvm_msi_use_devid;
 #define kvm_irqchip_is_split() (false)
 #define kvm_async_interrupts_enabled() (false)
 #define kvm_halt_in_kernel() (false)
+#define kvm_irqfds_enabled() (false)
 #define kvm_eventfds_enabled() (false)
 #define kvm_resamplefds_enabled() (false)
 #define kvm_msi_via_irqfd_enabled() (false)
-- 
2.41.0