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Andrew Cooper
722458767a
The written ABI states that %es will be set up, but libxc doesn't do so. In practice, it breaks `rep movs` inside guests before they reload %es. The written ABI doesn't mention %ss, but libxc does set it up. Having %ds different to %ss is obnoxous to work with, as different registers have different implicit segments. Modify the spec to state that %ss is set up as a flat read/write segment. This a) matches the Multiboot 1 spec, b) matches what is set up in practice, and c) is the more sane behaviour for guests to use. Fixes:68e1183411('libxc: introduce a xc_dom_arch for hvm-3.0-x86_32 guests') Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Wei Liu <wl@xen.org> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> x86/pvh: Adjust dom0's starting state Fixes:b25fb1a04e"xen/pvh: Fix segment selector ABI" Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Wei Liu <wl@xen.org> Acked-by: Jan Beulich <jbeulich@suse.com> master commit:b25fb1a04emaster date: 2020-02-10 15:26:09 +0000 master commit:6ee1031362master date: 2020-02-11 11:04:26 +0000
xen-bugtool =========== The xen-bugtool command line application will collate the Xen dmesg output, details of the hardware configuration of your machine, information about the build of Xen that you are using, plus, if you allow it, various logs. The information collated can either be posted to a Xen Bugzilla bug (this bug must already exist in the system, and you must be a registered user there), or it can be saved as a .tar.bz2 for sending or archiving. The collated logs may contain private information, and if you are at all worried about that, you should not use this tool, or you should explicitly exclude those logs from the archive. xen-bugtool is wholly interactive, so simply run it, and answer the questions.