From: Xiao-Yong Jin <meta.jxy@gmail.com>
To: 9front@9front.org
Subject: Re: [9front] kernel crash in bhyve
Date: Thu, 10 Dec 2020 22:55:06 -0600 [thread overview]
Message-ID: <59540567-ACE4-46A1-8B60-78B9BBF78187@gmail.com> (raw)
In-Reply-To: <CAH_zEu6_eaX0gZe6jgKx8hO2FSwC2A_8UHPmda1QBeUoQ3MweQ@mail.gmail.com>
> On Dec 10, 2020, at 5:12 PM, Nick Owens <mischief@offblast.org> wrote:
>
> you cannot just read #P/msr at offset 0. the offset is significant. io
> -M can be used to read an MSR at a specific offset.
That makes sense. The registers are 0 with the correct offset.
; for(r in 0x2ff 0x0fe) io -r -M $r
0x0
0x0
In fact, the MTRR registers are all 0:
https://github.com/freebsd/freebsd/blob/e8142e44905fa62147ba10703e7ce2c5464fb2b7/sys/amd64/vmm/intel/vmx_msr.c#L426-L432
> On Dec 10, 2020, at 7:12 PM, ori@eigenstate.org wrote:
>
> I can try to reproduce and maybe file a bug this
> weekend.
Please do. Thanks.
next prev parent reply other threads:[~2020-12-11 5:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-09 18:18 Xiao-Yong Jin
2020-12-09 18:26 ` [9front] " Xiao-Yong Jin
2020-12-09 18:44 ` ori
2020-12-09 19:05 ` [9front] " cinap_lenrek
2020-12-09 19:42 ` Xiao-Yong Jin
2020-12-09 20:52 ` cinap_lenrek
2020-12-09 21:22 ` Xiao-Yong Jin
2020-12-09 22:04 ` cinap_lenrek
2020-12-09 22:36 ` Xiao-Yong Jin
2020-12-09 23:18 ` cinap_lenrek
2020-12-10 0:10 ` Xiao-Yong Jin
2020-12-10 0:45 ` cinap_lenrek
2020-12-10 11:30 ` cinap_lenrek
2020-12-10 20:37 ` Xiao-Yong Jin
2020-12-10 23:12 ` Nick Owens
2020-12-11 4:55 ` Xiao-Yong Jin [this message]
2020-12-11 14:27 ` cinap_lenrek
2020-12-11 1:12 ` ori
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