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[Xen-devel] Re: [Xen-staging] [xen-unstable] [QEMU-DM] Upgrade emulated
| To: | Alex Williamson <alex.williamson@xxxxxx>, Trolle Selander <trolle.selander@xxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [Xen-staging] [xen-unstable] [QEMU-DM] Upgrade emulated UART to 16550A. |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Fri, 07 Dec 2007 17:43:16 +0000 |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Fri, 07 Dec 2007 09:44:15 -0800 |
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| In-reply-to: | <1197048065.6319.3.camel@lappy> |
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| Thread-index: | Acg4+KWE5EtSlqTrEdy7ewAX8io7RQ== |
| Thread-topic: | [Xen-staging] [xen-unstable] [QEMU-DM] Upgrade emulated UART to 16550A. |
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On 7/12/07 17:21, "Alex Williamson" <alex.williamson@xxxxxx> wrote: > On Wed, 2007-12-05 at 23:07 +0100, Trolle Selander wrote: >> This patch fixes the issue. It also changes the name of an >> inappropriately named timer. > > Hi Trolle, > > Yes, with this patch, my HVM domain will eventually boot. > Unfortunately it takes 2 minutes now to get through all the UART > timeouts and get to the firmware menu. Prior to the new 16550A UART > driver, it took 10 seconds. I think we need to do something smarter > than drop characters after some number of timeouts. We're doomed to > terrible slowness anytime the console is disconnected that way. Thanks, Perhaps we should latch the first timeout and fast-drop bursts of characters until the next character that is not immediately rejected? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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