| Message ID | 1537539920-30662-1-git-send-email-brijesh.singh@amd.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | x86_iommu/amd: add interrupt remap support | expand |
On Fri, Sep 21, 2018 at 02:25:42PM +0000, Singh, Brijesh wrote: [...] > +static int amdvi_int_remap_ga(AMDVIState *iommu, > + MSIMessage *origin, > + MSIMessage *translated, > + uint64_t *dte, > + X86IOMMUIrq *irq, > + uint16_t sid) > +{ > + int ret; > + struct irte_ga irte; > + > + /* get interrupt remapping table */ > + ret = amdvi_get_irte_ga(iommu, origin, dte, &irte, sid); > + if (ret < 0) { > + return ret; > + } > + > + if (!irte.lo.fields_remap.valid) { > + trace_amdvi_ir_target_abort("RemapEn is disabled"); > + return -AMDVI_IR_TARGET_ABORT; > + } > + > + if (irte.lo.fields_remap.guest_mode) { > + trace_amdvi_ir_err("guest mode is not zero"); Just to let you know that you mentioned about replacing some of the traces with error_report_once() but I didn't see any in this latest version. Again that's optional so traces would be fine, but I'm still pointing that out in case you wanted that and you're posting a wrong tree. Otherwise it looks good to me. Thanks,
On 9/25/18 1:57 AM, Peter Xu wrote: > On Fri, Sep 21, 2018 at 02:25:42PM +0000, Singh, Brijesh wrote: > > [...] > >> +static int amdvi_int_remap_ga(AMDVIState *iommu, >> + MSIMessage *origin, >> + MSIMessage *translated, >> + uint64_t *dte, >> + X86IOMMUIrq *irq, >> + uint16_t sid) >> +{ >> + int ret; >> + struct irte_ga irte; >> + >> + /* get interrupt remapping table */ >> + ret = amdvi_get_irte_ga(iommu, origin, dte, &irte, sid); >> + if (ret < 0) { >> + return ret; >> + } >> + >> + if (!irte.lo.fields_remap.valid) { >> + trace_amdvi_ir_target_abort("RemapEn is disabled"); >> + return -AMDVI_IR_TARGET_ABORT; >> + } >> + >> + if (irte.lo.fields_remap.guest_mode) { >> + trace_amdvi_ir_err("guest mode is not zero"); > Just to let you know that you mentioned about replacing some of the > traces with error_report_once() but I didn't see any in this latest > version. Again that's optional so traces would be fine, but I'm still > pointing that out in case you wanted that and you're posting a wrong > tree. Hmm, let me go back to my patches again, i thought I used error_report_once() in few places but it seems those are lost somewhere. thanks for pointing this out. > Otherwise it looks good to me. > > Thanks, >
This series adds the interrupt remapping support for amd-iommu device. IOMMU spec is available at: https://support.amd.com/TechDocs/48882_IOMMU.pdf To enable the interrupt remap use below qemu cli # $QEMU \ -device amd-iommu,intremap=on I have tested FC-28 and Ubuntu 18.04 guest. Linux guest bootup log shows the interrupt remap supports: [root@localhost ~]# dmesg | grep -i AMD-Vi [ 0.001761] AMD-Vi: Using IVHD type 0x10 [ 0.003051] AMD-Vi: device: 00:03.0 cap: 0040 seg: 0 flags: d1 info 0000 [ 0.004007] AMD-Vi: mmio-addr: 00000000fed80000 [ 0.004874] AMD-Vi: DEV_ALL flags: 00 [ 0.006236] AMD-Vi: DEV_SPECIAL(IOAPIC[0]) devid: 00:14.0 [ 0.667943] AMD-Vi: Found IOMMU at 0000:00:03.0 cap 0x40 [ 0.668727] AMD-Vi: Extended features (0x29d3): [ 0.669874] AMD-Vi: Interrupt remapping enabled [ 0.671074] AMD-Vi: Lazy IO/TLB flushing enabled cat /proc/interrupts confirms that its using IR [root@localhost ~]# cat /proc/interrupts CPU0 0: 40 IR-IO-APIC 2-edge timer 1: 9 IR-IO-APIC 1-edge i8042 4: 1770 IR-IO-APIC 4-edge ttyS0 7: 0 IR-IO-APIC 7-edge parport0 8: 1 IR-IO-APIC 8-edge rtc0 9: 0 IR-IO-APIC 9-fasteoi acpi 12: 15 IR-IO-APIC 12-edge i8042 16: 0 IR-IO-APIC 16-fasteoi i801_smbus 24: 0 PCI-MSI 49152-edge AMD-Vi 25: 13070 IR-PCI-MSI 512000-edge ahci[0000:00:1f.2] 26: 86 IR-PCI-MSI 32768-edge enp0s2-rx-0 27: 139 IR-PCI-MSI 32769-edge enp0s2-tx-0 28: 1 IR-PCI-MSI 32770-edge enp0s2 NMI: 0 Non-maskable interrupts LOC: 26686 Local timer interrupts SPU: 0 Spurious interrupts ... ... Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Cc: Tom Lendacky <Thomas.Lendacky@amd.com> Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Cc: Peter Xu <peterx@redhat.com> Changes since v2: - make the address space rename a separate patch - fix the V=1 check in patch 2 - add more comments in the patches - use amdvi_target_abort trace point where applicable - use error_report_once where applicable - do not cause exit() when configuration mismatch is detected, but log the error so that user knows about it. Changes since v1: - move vtd_generate_msi_message to common code - fix the dest_mode bit extraction - add more comments explaining why we add the special device - some minor cleanups based on Peter's feedbacks Brijesh Singh (9): x86_iommu: move the kernel-irqchip check in common code x86_iommu: move vtd_generate_msi_message in common file x86_iommu/amd: remove V=1 check from amdvi_validate_dte() x86_iommu/amd: make the address space naming consistent with intel-iommu x86_iommu/amd: Prepare for interrupt remap support x86_iommu/amd: Add interrupt remap support when VAPIC is not enabled i386: acpi: add IVHD device entry for IOAPIC x86_iommu/amd: Add interrupt remap support when VAPIC is enabled x86_iommu/amd: Enable Guest virtual APIC support hw/i386/acpi-build.c | 31 +++- hw/i386/amd_iommu.c | 413 +++++++++++++++++++++++++++++++++++++++++- hw/i386/amd_iommu.h | 96 +++++++++- hw/i386/intel_iommu.c | 39 +--- hw/i386/trace-events | 14 ++ hw/i386/x86-iommu.c | 33 ++++ include/hw/i386/intel_iommu.h | 59 ------ include/hw/i386/x86-iommu.h | 66 +++++++ 8 files changed, 642 insertions(+), 109 deletions(-)