From: "Jan Beulich" <jbeulich@novell.com>
To: Guanqun Lu <guanqun.lu@intel.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Keir Fraser <keir.fraser@eu.citrix.com>
Subject: RE: [PATCH] small adjustment to asm constraints forc/s19400
Date: Tue, 31 Mar 2009 10:24:22 +0100 [thread overview]
Message-ID: <49D1FD66.76E4.0078.0@novell.com> (raw)
In-Reply-To: <8FED46E8A9CA574792FC7AACAC38FE7701D4EAF926@PDSMSX501.ccr.corp.intel.com>
>>> "Lu, Guanqun" <guanqun.lu@intel.com> 31.03.09 10:54 >>>
>[before] (XEN) EFER: d01<0> STAR: e023e00800000000<0> LSTAR: ffff828c8029b000<0> CSTAR: ffff828c8029b080<0>
>SYSCALL_MASK: 34700<0> FS_BASE: 0<0> GS_BASE: b7f4a6c0<0> SH_GS_BASE: 0
>[after] (XEN) EFER: d01<0> STAR: e023e00800000000<0> LSTAR: ffff828c8029b000<0> CSTAR: ffff828c8029b080<0>
>SYSCALL_MASK: 34700<0> FS_BASE: 0<0> GS_BASE: b7f4a6c0<0> SH_GS_BASE: 0
>
>They're the same.
>
>And aslo I dump GDT, IDT, LDT and TR register and tss struct, there are no difference seen.
>
>
>So can you give some advice some more registers should be dumped?
Assuming this is an Intel box, the guest is certainly using sysenter (which the user mode EIP saved on the stack would also suggest), so you're really after the three SYSENTER MSRs. And indeed - restore_rest_processor_state() seems to only care for the STAR ones.
Jan
next prev parent reply other threads:[~2009-03-31 9:24 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-27 16:35 [PATCH] small adjustment to asm constraints for c/s 19400 Jan Beulich
2009-03-30 4:45 ` Lu, Guanqun
2009-03-30 6:42 ` [PATCH] small adjustment to asm constraints for c/s19400 Jan Beulich
2009-03-30 8:58 ` Lu, Guanqun
2009-03-30 8:45 ` [PATCH] small adjustment to asm constraints for c/s 19400 Keir Fraser
2009-03-30 8:56 ` Lu, Guanqun
2009-03-30 9:13 ` [PATCH] small adjustment to asm constraints for c/s19400 Jan Beulich
2009-03-31 8:54 ` Lu, Guanqun
2009-03-31 9:05 ` Tian, Kevin
2009-03-31 9:24 ` Jan Beulich [this message]
2009-03-31 9:26 ` [PATCH] small adjustment to asm constraints forc/s19400 Tian, Kevin
2009-03-31 9:40 ` Jan Beulich
2009-03-31 9:47 ` Tian, Kevin
2009-03-31 10:15 ` Jan Beulich
2009-03-31 10:21 ` Tian, Kevin
2009-03-31 10:54 ` [PATCH] small adjustment to asm constraintsforc/s19400 Jan Beulich
2009-03-31 11:09 ` Tian, Kevin
2009-03-31 11:30 ` Jan Beulich
2009-03-31 11:35 ` Tian, Kevin
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