From: Anthony Liguori <anthony@codemonkey.ws>
To: Alexander Graf <agraf@suse.de>
Cc: Avi Kivity <avi@redhat.com>, kvm@vger.kernel.org, joro@8bytes.org
Subject: Re: [PATCH 3/9] Implement GIF, clgi and stgi v5
Date: Thu, 30 Oct 2008 14:08:23 -0500 [thread overview]
Message-ID: <490A0627.7020206@codemonkey.ws> (raw)
In-Reply-To: <5A4061D1-03CF-42F8-946D-ABF56454FC84@suse.de>
Alexander Graf wrote:
>
> On 30.10.2008, at 19:10, Avi Kivity wrote:
>>> GIF somehow needs exposure to userspace too, right? Otherwise, when
>>> using -no-kernel-apic, userspace may try to inject an interrupt when
>>> the guest cannot handle it, right?
>>
>> Hmm, right, it needs to close the interrupt window.
>
> Yes, it's broken with -no-kernel-apic, since the userspace doesn't
> know the window is closed. Any good suggestions here? Joerg and me
> decided to just ignore the non-kernel-apic case, but if it's important
> we might want to sync the hflags with userspace, so we can export the
> GIF.
Maybe abusing kvm_run->if_flag? Current, userspace treats if_flag as a
boolean. If you stored GIF and eflags.IF in there, I believe old
userspaces would just work.
Regards,
Anthony Liguori
> Alex
>
next prev parent reply other threads:[~2008-10-30 19:08 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-20 17:04 [PATCH 0/9] Add support for nested SVM (kernel) v5 Alexander Graf
2008-10-20 17:04 ` [PATCH 1/9] Clean up VINTR setting v5 Alexander Graf
2008-10-20 17:04 ` [PATCH 2/9] Add helper functions for nested SVM v5 Alexander Graf
2008-10-20 17:04 ` [PATCH 3/9] Implement GIF, clgi and stgi v5 Alexander Graf
2008-10-20 17:04 ` [PATCH 4/9] Implement hsave v5 Alexander Graf
2008-10-20 17:04 ` [PATCH 5/9] Add VMLOAD and VMSAVE handlers v5 Alexander Graf
2008-10-20 17:04 ` [PATCH 6/9] Add VMRUN handler v5 Alexander Graf
2008-10-20 17:04 ` [PATCH 7/9] Add VMEXIT handler and intercepts v5 Alexander Graf
2008-10-20 17:04 ` [PATCH 8/9] allow read access to MSR_VM_VR Alexander Graf
2008-10-20 17:04 ` [PATCH 9/9] Allow setting the SVME bit v5 Alexander Graf
2008-10-29 13:58 ` Joerg Roedel
2008-10-29 14:03 ` Alexander Graf
2008-10-29 14:17 ` Avi Kivity
2008-10-29 14:07 ` Avi Kivity
2008-10-30 19:16 ` Anthony Liguori
2008-10-30 19:24 ` Avi Kivity
2008-10-30 20:46 ` Alexander Graf
2008-10-30 20:44 ` Alexander Graf
2008-10-30 20:52 ` Anthony Liguori
2008-11-02 9:11 ` Avi Kivity
2008-11-03 7:37 ` Alexander Graf
2008-11-03 13:54 ` Avi Kivity
2008-10-30 19:15 ` [PATCH 8/9] allow read access to MSR_VM_VR Anthony Liguori
2008-10-31 10:57 ` Joerg Roedel
2008-10-28 18:38 ` Add VMRUN handler v5 Mike Day
2008-10-29 5:35 ` Alexander Graf
2008-11-18 14:14 ` [PATCH 6/9] " Muli Ben-Yehuda
2008-10-30 18:06 ` [PATCH 5/9] Add VMLOAD and VMSAVE handlers v5 Anthony Liguori
2008-10-30 18:44 ` Alexander Graf
2008-10-30 19:14 ` Anthony Liguori
2008-10-30 21:02 ` Alexander Graf
2008-10-30 21:38 ` Anthony Liguori
2008-10-30 18:04 ` [PATCH 4/9] Implement hsave v5 Anthony Liguori
2008-10-30 18:43 ` Alexander Graf
2008-10-30 19:05 ` Anthony Liguori
2008-10-30 19:29 ` Avi Kivity
2008-10-30 20:38 ` Alexander Graf
2008-10-30 20:44 ` Anthony Liguori
2008-10-30 20:47 ` Alexander Graf
2008-10-30 22:05 ` Anthony Liguori
2008-11-02 9:24 ` Avi Kivity
2008-10-27 19:09 ` Implement GIF, clgi and stgi v5 Mike Day
2008-10-27 19:29 ` Avi Kivity
2008-10-27 19:40 ` Mike Day
2008-10-30 18:02 ` [PATCH 3/9] " Anthony Liguori
2008-10-30 18:10 ` Avi Kivity
2008-10-30 18:35 ` Alexander Graf
2008-10-30 19:08 ` Anthony Liguori [this message]
2008-10-30 19:11 ` Anthony Liguori
2008-10-29 13:48 ` [PATCH 2/9] Add helper functions for nested SVM v5 Joerg Roedel
2008-10-30 17:56 ` Anthony Liguori
2008-10-30 18:41 ` Alexander Graf
2008-10-30 19:10 ` Anthony Liguori
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