Hi! What is going on here? > commit 5bdf3437603d4af87f9c7f424b0c8aeed2420745 upstream. Upstream commit 5bdf is very different from this. In particular, > arch/arm64/kvm/hyp/smccc_wa.S | 66 +++++++++++++++++++++++++++++++++++++++ I can't find smccc_wa.S, neither in mainline, nor in -next. And it looks buggy. I suspect loop_k24 should loop 24 times, but it does 8 loops AFAICT. Same problem with loop_k32. Best regards, Pavel > --- a/arch/arm64/kvm/hyp/smccc_wa.S > +++ b/arch/arm64/kvm/hyp/smccc_wa.S > + > + .global __spectre_bhb_loop_k24 > +SYM_DATA_START(__spectre_bhb_loop_k24) > + esb > + sub sp, sp, #(8 * 2) > + stp x0, x1, [sp, #(8 * 0)] > + mov x0, #8 > +2: b . + 4 > + subs x0, x0, #1 > + b.ne 2b > + dsb nsh > + isb > + ldp x0, x1, [sp, #(8 * 0)] > + add sp, sp, #(8 * 2) > +1: .org __spectre_bhb_loop_k24 + __SPECTRE_BHB_LOOP_SZ > + .org 1b > +SYM_DATA_END(__spectre_bhb_loop_k24) > + > + .global __spectre_bhb_loop_k32 > +SYM_DATA_START(__spectre_bhb_loop_k32) > + esb > + sub sp, sp, #(8 * 2) > + stp x0, x1, [sp, #(8 * 0)] > + mov x0, #8 > +2: b . + 4 > + subs x0, x0, #1 > + b.ne 2b > + dsb nsh > + isb > + ldp x0, x1, [sp, #(8 * 0)] > + add sp, sp, #(8 * 2) > +1: .org __spectre_bhb_loop_k32 + __SPECTRE_BHB_LOOP_SZ > + .org 1b > +SYM_DATA_END(__spectre_bhb_loop_k32) > -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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