From: "Jan Beulich" <JBeulich@suse.com> To: xen-devel <xen-devel@lists.xenproject.org> Cc: Andrew Cooper <andrew.cooper3@citrix.com>, Kevin Tian <kevin.tian@intel.com>, Wei Liu <wei.liu2@citrix.com>, Roger Pau Monne <roger.pau@citrix.com> Subject: [PATCH] x86/IOMMU: abstract Intel-specific adjust_vtd_irq_affinities() Date: Mon, 08 Apr 2019 05:16:58 -0600 [thread overview] Message-ID: <5CAB2DAA02000078002254F3@prv1-mh.provo.novell.com> (raw) This can't be folded into the resume hook, as that runs before bringin back up APs, but the affinity adjustment wants to happen with all CPUs back online. Hence a separate hook is needed such that AMD can then leverage it as well. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/xen/arch/x86/acpi/power.c +++ b/xen/arch/x86/acpi/power.c @@ -275,7 +275,7 @@ static int enter_state(u32 state) mtrr_aps_sync_begin(); enable_nonboot_cpus(); mtrr_aps_sync_end(); - adjust_vtd_irq_affinities(); + iommu_adjust_irq_affinities(); acpi_dmar_zap(); thaw_domains(); system_state = SYS_STATE_active; --- a/xen/drivers/passthrough/vtd/iommu.c +++ b/xen/drivers/passthrough/vtd/iommu.c @@ -2141,7 +2141,7 @@ static void adjust_irq_affinity(struct a dma_msi_set_affinity(irq_to_desc(drhd->iommu->msi.irq), cpumask); } -int adjust_vtd_irq_affinities(void) +static int adjust_vtd_irq_affinities(void) { struct acpi_drhd_unit *drhd; @@ -2725,6 +2725,7 @@ const struct iommu_ops __initconstrel in .read_apic_from_ire = io_apic_read_remap_rte, .read_msi_from_ire = msi_msg_read_remap_rte, .setup_hpet_msi = intel_setup_hpet_msi, + .adjust_irq_affinities = adjust_vtd_irq_affinities, .suspend = vtd_suspend, .resume = vtd_resume, .share_p2m = iommu_set_pgd, --- a/xen/include/asm-x86/iommu.h +++ b/xen/include/asm-x86/iommu.h @@ -81,8 +81,14 @@ void iommu_update_ire_from_apic(unsigned unsigned int iommu_read_apic_from_ire(unsigned int apic, unsigned int reg); int iommu_setup_hpet_msi(struct msi_desc *); +static inline int iommu_adjust_irq_affinities(void) +{ + return iommu_ops.adjust_irq_affinities + ? iommu_ops.adjust_irq_affinities() + : 0; +} + /* While VT-d specific, this must get declared in a generic header. */ -int adjust_vtd_irq_affinities(void); int __must_check iommu_pte_flush(struct domain *d, u64 gfn, u64 *pte, int order, int present); --- a/xen/include/xen/iommu.h +++ b/xen/include/xen/iommu.h @@ -224,7 +224,10 @@ struct iommu_ops { void (*update_ire_from_apic)(unsigned int apic, unsigned int reg, unsigned int value); unsigned int (*read_apic_from_ire)(unsigned int apic, unsigned int reg); + int (*setup_hpet_msi)(struct msi_desc *); + + int (*adjust_irq_affinities)(void); #endif /* CONFIG_X86 */ int __must_check (*suspend)(void); _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
WARNING: multiple messages have this Message-ID (diff)
From: "Jan Beulich" <JBeulich@suse.com> To: "xen-devel" <xen-devel@lists.xenproject.org> Cc: Andrew Cooper <andrew.cooper3@citrix.com>, Kevin Tian <kevin.tian@intel.com>, Wei Liu <wei.liu2@citrix.com>, Roger Pau Monne <roger.pau@citrix.com> Subject: [Xen-devel] [PATCH] x86/IOMMU: abstract Intel-specific adjust_vtd_irq_affinities() Date: Mon, 08 Apr 2019 05:16:58 -0600 [thread overview] Message-ID: <5CAB2DAA02000078002254F3@prv1-mh.provo.novell.com> (raw) Message-ID: <20190408111658.xvs_gc0GxLUZSAlHgm3ahC8xA8izi-VTkltsVDi2N8g@z> (raw) This can't be folded into the resume hook, as that runs before bringin back up APs, but the affinity adjustment wants to happen with all CPUs back online. Hence a separate hook is needed such that AMD can then leverage it as well. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/xen/arch/x86/acpi/power.c +++ b/xen/arch/x86/acpi/power.c @@ -275,7 +275,7 @@ static int enter_state(u32 state) mtrr_aps_sync_begin(); enable_nonboot_cpus(); mtrr_aps_sync_end(); - adjust_vtd_irq_affinities(); + iommu_adjust_irq_affinities(); acpi_dmar_zap(); thaw_domains(); system_state = SYS_STATE_active; --- a/xen/drivers/passthrough/vtd/iommu.c +++ b/xen/drivers/passthrough/vtd/iommu.c @@ -2141,7 +2141,7 @@ static void adjust_irq_affinity(struct a dma_msi_set_affinity(irq_to_desc(drhd->iommu->msi.irq), cpumask); } -int adjust_vtd_irq_affinities(void) +static int adjust_vtd_irq_affinities(void) { struct acpi_drhd_unit *drhd; @@ -2725,6 +2725,7 @@ const struct iommu_ops __initconstrel in .read_apic_from_ire = io_apic_read_remap_rte, .read_msi_from_ire = msi_msg_read_remap_rte, .setup_hpet_msi = intel_setup_hpet_msi, + .adjust_irq_affinities = adjust_vtd_irq_affinities, .suspend = vtd_suspend, .resume = vtd_resume, .share_p2m = iommu_set_pgd, --- a/xen/include/asm-x86/iommu.h +++ b/xen/include/asm-x86/iommu.h @@ -81,8 +81,14 @@ void iommu_update_ire_from_apic(unsigned unsigned int iommu_read_apic_from_ire(unsigned int apic, unsigned int reg); int iommu_setup_hpet_msi(struct msi_desc *); +static inline int iommu_adjust_irq_affinities(void) +{ + return iommu_ops.adjust_irq_affinities + ? iommu_ops.adjust_irq_affinities() + : 0; +} + /* While VT-d specific, this must get declared in a generic header. */ -int adjust_vtd_irq_affinities(void); int __must_check iommu_pte_flush(struct domain *d, u64 gfn, u64 *pte, int order, int present); --- a/xen/include/xen/iommu.h +++ b/xen/include/xen/iommu.h @@ -224,7 +224,10 @@ struct iommu_ops { void (*update_ire_from_apic)(unsigned int apic, unsigned int reg, unsigned int value); unsigned int (*read_apic_from_ire)(unsigned int apic, unsigned int reg); + int (*setup_hpet_msi)(struct msi_desc *); + + int (*adjust_irq_affinities)(void); #endif /* CONFIG_X86 */ int __must_check (*suspend)(void); _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
next reply other threads:[~2019-04-08 11:17 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-04-08 11:16 Jan Beulich [this message] 2019-04-08 11:16 ` [Xen-devel] [PATCH] x86/IOMMU: abstract Intel-specific adjust_vtd_irq_affinities() Jan Beulich 2019-04-09 3:13 ` Tian, Kevin 2019-04-09 3:13 ` [Xen-devel] " Tian, Kevin 2019-04-09 9:11 ` Andrew Cooper 2019-04-09 9:11 ` [Xen-devel] " Andrew Cooper
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