Date: Sat, 24 Jan 2004 15:16:47 -0600 (CST) From: Mike Silbersack <silby@silby.com> To: emulation@freebsd.org Subject: New /dev/rtc driver for vmware Message-ID: <20040124151131.I29927@odysseus.silby.com>
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This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. Send mail to mime@docserver.cac.washington.edu for more info. --0-1432871052-1074979007=:29927 Content-Type: TEXT/PLAIN; charset=US-ASCII Over the last few days, I've been hacking together a new /dev/rtc driver for vmware to use. I still need to do a bit more work to get its timing better (which may involve making other changes to the kernel), but I think that it's ready for general testing. Please copy the included rtc.c into the files/ directory of the rtc port, rebuild, and see how it works for you. Also, make sure that you're running with kern.hz = 1000 or greater; it's not going to work well otherwise. The biggest change you'll notice is that when running vmware is that processor usage will be much lower. Things I have yet to do with the driver: 1. Make it work decently at hz = 100 1a. Improve its timing 2. Implement device cloning so that under 5.x the driver can be used by multiple copies of vmware at once. But for now, it seems to work pretty well, and I may just commit it as is, unless people report other problems with it. Thanks, Mike "Silby" Silbersack --0-1432871052-1074979007=:29927 Content-Type: TEXT/PLAIN; charset=US-ASCII; name="rtc.c" Content-Transfer-Encoding: BASE64 Content-ID: <20040124151647.U29927@odysseus.silby.com> Content-Description: Content-Disposition: attachment; filename="rtc.c" LyoNCiAqIENvcHlyaWdodCBieSBWbGFkaW1pciBOLiBTaWx5YWV2IDIwMDAN CiAqDQogKiBSZWRpc3RyaWJ1dGlvbiBhbmQgdXNlIGluIHNvdXJjZSBhbmQg YmluYXJ5IGZvcm1zLCB3aXRoIG9yIHdpdGhvdXQNCiAqIG1vZGlmaWNhdGlv biwgYXJlIHBlcm1pdHRlZCBwcm92aWRlZCB0aGF0IHRoZSBmb2xsb3dpbmcg Y29uZGl0aW9ucw0KICogYXJlIG1ldDoNCiAqIDEuIFJlZGlzdHJpYnV0aW9u cyBvZiBzb3VyY2UgY29kZSBtdXN0IHJldGFpbiB0aGUgYWJvdmUgY29weXJp Z2h0DQogKiAgICBub3RpY2UsIHRoaXMgbGlzdCBvZiBjb25kaXRpb25zIGFu ZCB0aGUgZm9sbG93aW5nIGRpc2NsYWltZXIuDQogKiAyLiBSZWRpc3RyaWJ1 dGlvbnMgaW4gYmluYXJ5IGZvcm0gbXVzdCByZXByb2R1Y2UgdGhlIGFib3Zl IGNvcHlyaWdodA0KICogICAgbm90aWNlLCB0aGlzIGxpc3Qgb2YgY29uZGl0 aW9ucyBhbmQgdGhlIGZvbGxvd2luZyBkaXNjbGFpbWVyIGluIHRoZQ0KICog 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