On 20/01/2015 11:34, Li Kaihang wrote:
> Li kaihang: I think I make a mistake here that IDT-vectoring information
> field is not written by vectored event but is done by Event Delivery.
> vm exit during Event Delivery is not triggered by external
> interrupt delivery, only vm exit d
From: Paolo Bonzini
To: Li Kaihang , g...@kernel.org,
Cc: t...@linutronix.de, mi...@redhat.com, h...@zytor.com, x...@kernel.org,
k...@vger.kernel.org, linux-kernel@vger.kernel.org
Date: 2015-01-19 下午 11:29
Subject:Re: [PATCH 1/1] arch/x86/kvm/vmx.c: Fix external interrupts
On 15/01/2015 13:36, Li Kaihang wrote:
> This patch fix a external interrupt injecting bug in linux 3.19-rc4.
>
> GuestOS is running and handling some interrupt with RFLAGS.IF = 0 while a
> external interrupt coming,
> then can lead to a vm exit,in this case,we must avoid inject this external
: Fix external interrupts
inject directly bug with guestos RFLAGS.IF=0
2015-01-16 16:07+0800, Li Kaihang:
> > GuestOS is running and handling some interrupt with RFLAGS.IF = 0 while a
> > external interrupt coming,
> > then can lead to a vm exit,in this case,we must avoid in
2015-01-16 16:07+0800, Li Kaihang:
> > GuestOS is running and handling some interrupt with RFLAGS.IF = 0 while a
> > external interrupt coming,
> > then can lead to a vm exit,in this case,we must avoid inject this external
> > interrupt or it will generate
> > a processor hardware exception causi
:Re: [PATCH 1/1] arch/x86/kvm/vmx.c: Fix external interrupts
inject directly bug with guestos RFLAGS.IF=0
2015-01-15 20:36+0800, Li Kaihang:
> This patch fix a external interrupt injecting bug in linux 3.19-rc4.
Was the bug introduced in earlier 3.19 release candidate?
Li Kaihang: Yes,
:Re: [PATCH 1/1] arch/x86/kvm/vmx.c: Fix external interrupts
inject directly bug with guestos RFLAGS.IF=0
2015-01-15 20:36+0800, Li Kaihang:
> This patch fix a external interrupt injecting bug in linux 3.19-rc4.
Was the bug introduced in earlier 3.19 release candidate?
Li Kaihang: Yes,
2015-01-15 20:36+0800, Li Kaihang:
> This patch fix a external interrupt injecting bug in linux 3.19-rc4.
Was the bug introduced in earlier 3.19 release candidate?
> GuestOS is running and handling some interrupt with RFLAGS.IF = 0 while a
> external interrupt coming,
> then can lead to a vm exi
This patch fix a external interrupt injecting bug in linux 3.19-rc4.
GuestOS is running and handling some interrupt with RFLAGS.IF = 0 while a
external interrupt coming,
then can lead to a vm exit,in this case,we must avoid inject this external
interrupt or it will generate
a processor hardware
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