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Groups > linux.kernel > #1190051
| From | Will Deacon <will.deacon@arm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 4/5] arm64: kvm: Adopt new alternative assembler macros |
| Date | 2015-07-22 17:20 +0200 |
| Message-ID | <pP3Ym-2d9-17@gated-at.bofh.it> (permalink) |
| References | <pKGQG-6Gh-13@gated-at.bofh.it> <pP0nL-5o8-7@gated-at.bofh.it> <pP0nM-5o8-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Marc, Christoffer, On Wed, Jul 22, 2015 at 12:21:04PM +0100, Daniel Thompson wrote: > Convert the dynamic patching for ARM64_HAS_SYSREG_GIC_CPUIF over to > the newly added alternative assembler macros. Do you mind if I take this via the arm64 tree? It won't apply in isolation and I'd expect conflicts to be small/trivial to resolve. Cheers, Will > --- > arch/arm64/kvm/hyp.S | 12 ++++++++++-- > 1 file changed, 10 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S > index 17a8fb14f428..10915aaf0b01 100644 > --- a/arch/arm64/kvm/hyp.S > +++ b/arch/arm64/kvm/hyp.S > @@ -810,7 +810,11 @@ > * Call into the vgic backend for state saving > */ > .macro save_vgic_state > - alternative_insn "bl __save_vgic_v2_state", "bl __save_vgic_v3_state", ARM64_HAS_SYSREG_GIC_CPUIF > +alternative_if_not ARM64_HAS_SYSREG_GIC_CPUIF > + bl __save_vgic_v2_state > +alternative_else > + bl __save_vgic_v3_state > +alternative_endif > mrs x24, hcr_el2 > mov x25, #HCR_INT_OVERRIDE > neg x25, x25 > @@ -827,7 +831,11 @@ > orr x24, x24, #HCR_INT_OVERRIDE > orr x24, x24, x25 > msr hcr_el2, x24 > - alternative_insn "bl __restore_vgic_v2_state", "bl __restore_vgic_v3_state", ARM64_HAS_SYSREG_GIC_CPUIF > +alternative_if_not ARM64_HAS_SYSREG_GIC_CPUIF > + bl __restore_vgic_v2_state > +alternative_else > + bl __restore_vgic_v3_state > +alternative_endif > .endm > > .macro save_timer_state > -- > 2.4.3 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v3 0/5] arm64: alternative: Provide if/else/endif assembler macros Daniel Thompson <daniel.thompson@linaro.org> - 2015-07-22 13:30 +0200
[PATCH v3 4/5] arm64: kvm: Adopt new alternative assembler macros Daniel Thompson <daniel.thompson@linaro.org> - 2015-07-22 13:30 +0200
Re: [PATCH v3 4/5] arm64: kvm: Adopt new alternative assembler macros Will Deacon <will.deacon@arm.com> - 2015-07-22 17:20 +0200
Re: [PATCH v3 4/5] arm64: kvm: Adopt new alternative assembler macros Marc Zyngier <marc.zyngier@arm.com> - 2015-07-22 18:00 +0200
[PATCH v3 2/5] arm64: mm: Adopt new alternative assembler macros Daniel Thompson <daniel.thompson@linaro.org> - 2015-07-22 13:30 +0200
[PATCH v3 5/5] arm64: alternative: Remove alternative_insn macro Daniel Thompson <daniel.thompson@linaro.org> - 2015-07-22 13:30 +0200
[PATCH v3 1/5] arm64: alternative: Provide if/else/endif assembler macros Daniel Thompson <daniel.thompson@linaro.org> - 2015-07-22 13:30 +0200
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