[v1] Misc patches for 2020-09-24

[PULL 81/92] helper_syscall x86_64: clear exception_is_int

Paolo Bonzini posted 92 patches 5 years, 4 months ago

Diff against v2 v3 v4 v5 v6 v7
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Maintainers: Fam Zheng <fam@euphon.net>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, "Alex Bennée" <alex.bennee@linaro.org>, Thomas Huth <thuth@redhat.com>, Gerd Hoffmann <kraxel@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Markus Armbruster <armbru@redhat.com>, Bandan Das <bsd@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, Michael Roth <mdroth@linux.vnet.ibm.com>, Peter Maydell <peter.maydell@linaro.org>, Jason Wang <jasowang@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Sergio Lopez <slp@redhat.com>, Igor Mammedov <imammedo@redhat.com>, Laurent Vivier <lvivier@redhat.com>, Hannes Reinecke <hare@suse.com>, Stefan Weil <sw@weilnetz.de>, Cleber Rosa <crosa@redhat.com>, Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>, David Hildenbrand <david@redhat.com>, Aurelien Jarno <aurelien@aurel32.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Eric Blake <eblake@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Alexander Bulekov <alxndr@bu.edu>, "Michael S. Tsirkin" <mst@redhat.com>, David Gibson <david@gibson.dropbear.id.au>, Max Reitz <mreitz@redhat.com>, Eduardo Habkost <ehabkost@redhat.com>, Sunil Muthuswamy <sunilmut@microsoft.com>, Richard Henderson <rth@twiddle.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Kevin Wolf <kwolf@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Halil Pasic <pasic@linux.ibm.com>

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From: Douglas Crosher <dtc-ubuntu@scieneer.com> The exception_is_int flag may be set on entry to helper_syscall, e.g. after a prior interrupt that has returned, and processing EXCP_SYSCALL as an interrupt causes it to fail so clear this flag. Signed-off-by: Douglas Crosher <dtc-ubuntu@scieneer.com> Message-Id: <a7dab33e-eda6-f988-52e9-f3d32db7538d@scieneer.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- target/i386/seg_helper.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/i386/seg_helper.c b/target/i386/seg_helper.c index b96de068ca..be88938c2a 100644 --- a/target/i386/seg_helper.c +++ b/target/i386/seg_helper.c @@ -975,6 +975,7 @@ void helper_syscall(CPUX86State *env, int next_eip_addend) CPUState *cs = env_cpu(env); cs->exception_index = EXCP_SYSCALL; + env->exception_is_int = 0; env->exception_next_eip = env->eip + next_eip_addend; cpu_loop_exit(cs); } -- 2.26.2