Re: [Xen-devel] [PATCH] x86: drop dead asm-offsets definitions

2018-07-06 Thread Julien Grall
Hi Jan, On 06/07/18 08:39, Jan Beulich wrote: UREGS_user_sizeof had a use long, long ago on x86, and apparently was blindly cloned into ARM code. I was looking at using it recently for SSBD. But managed to do it differently. The uses of UREGS_saved_upcall_mask and UREGS_{ds,es,fs,gs} disa

Re: [Xen-devel] [PATCH] x86: drop dead asm-offsets definitions

2018-07-06 Thread Andrew Cooper
On 06/07/18 08:39, Jan Beulich wrote: > UREGS_user_sizeof had a use long, long ago on x86, and apparently was > blindly cloned into ARM code. > > The uses of UREGS_saved_upcall_mask and UREGS_{ds,es,fs,gs} disappeared > in 71eb3a65e3 ("VMX: streamline entry.S code") and 110b2d6e8a ("SVM: > streamli

[Xen-devel] [PATCH] x86: drop dead asm-offsets definitions

2018-07-06 Thread Jan Beulich
UREGS_user_sizeof had a use long, long ago on x86, and apparently was blindly cloned into ARM code. The uses of UREGS_saved_upcall_mask and UREGS_{ds,es,fs,gs} disappeared in 71eb3a65e3 ("VMX: streamline entry.S code") and 110b2d6e8a ("SVM: streamline entry.S code"). There are other ARM side UREG