Misc HW patches for 2024-04-02

[PULL 14/15] hw/xen_evtchn: Initialize flush_kvm_routes

Philippe Mathieu-Daudé posted 15 patches 1 year, 10 months ago

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Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Fam Zheng <fam@euphon.net>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, "Alex Bennée" <alex.bennee@linaro.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Eric Auger <eric.auger@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, David Woodhouse <dwmw2@infradead.org>, Paul Durrant <paul@xen.org>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Eduardo Habkost <eduardo@habkost.net>, Jason Wang <jasowang@redhat.com>, Keith Busch <kbusch@kernel.org>, Klaus Jensen <its@irrelevant.dk>, Jesper Devantier <foss@defmacro.it>, Alexandre Iooss <erdnaxe@crans.org>, Mahmoud Mandour <ma.mandourr@gmail.com>, Pierrick Bouvier <pierrick.bouvier@linaro.org>, Alexander Graf <agraf@csgraf.de>, Cameron Esfahani <dirty@apple.com>, Roman Bolshakov <rbolshakov@ddn.com>, Nicholas Piggin <npiggin@gmail.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, John Snow <jsnow@redhat.com>, Thomas Huth <thuth@redhat.com>, Laurent Vivier <lvivier@redhat.com>

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[PULL 14/15] hw/xen_evtchn: Initialize flush_kvm_routes

Posted by Philippe Mathieu-Daudé 1 year, 10 months ago

From: Artem Chernyshev <artem.chernyshev@red-soft.ru>

In xen_evtchn_soft_reset() variable flush_kvm_routes can
be used before being initialized.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Oleg Sviridov <oleg.sviridov@red-soft.ru>
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240329113939.257033-1-artem.chernyshev@red-soft.ru>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/i386/kvm/xen_evtchn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/kvm/xen_evtchn.c b/hw/i386/kvm/xen_evtchn.c
index a5052c0ea3..07bd0c9ab8 100644
--- a/hw/i386/kvm/xen_evtchn.c
+++ b/hw/i386/kvm/xen_evtchn.c
@@ -1097,7 +1097,7 @@ static int close_port(XenEvtchnState *s, evtchn_port_t port,
 int xen_evtchn_soft_reset(void)
 {
     XenEvtchnState *s = xen_evtchn_singleton;
-    bool flush_kvm_routes;
+    bool flush_kvm_routes = false;
     int i;
 
     if (!s) {
-- 
2.41.0