FYI, ACPI will be done early next week (I think).
On Fri, Dec 4, 2015 at 2:43 PM, <[email protected]> wrote:
> Please note that currently, the IOMMU is hardcoded currently at a specific
> physical address that requires the ACPI stuff to find out dynamically.
>
> *THIS WILL NOT WORK OUT OF THE BOX FOR A DIFFERENT MACHINE CONFIGURATION
> OTHER THAN THE ONES WE BUILT IN MTV*
>
> If you're looking to try it out on another machine, you'll need to find
> out the IOMMU's register bases in the VHRD, and find out which IOMMU maps
> to the IOAPIC you want. Then you can change the DMAR_REG_PADDR value in
> kern/arch/x86/iommu.h to whatever the VHRD tells you.
>
> The following changes since commit
> 0b10f30b9b9b18f0e45390231dbdaf7b045fbd5b:
>
> Print ${remote}:${head} in link for code review (2015-12-03 12:38:20
> -0500)
>
> are available in the git repository at:
>
> [email protected]:GanShun/akaros.git
>
> for you to fetch changes up to dbdd541935111c8d418c77f83ddb885528768b89:
>
> Swapped IPI sending to a full 64-bit write and APIC writes to msr regs.
> (2015-12-04 11:18:48 -0800)
>
> ----------------------------------------------------------------
> GanShun (5):
> Switched from APIC to X2APIC mode
> Initialized IOMMU and modified IOAPIC to send remappable interrupts.
> ExtINT mode for IOMMU is working and remaps IOAPIC IRQ 4 to vector 39
> IOMMU Rerouting of Interrupt 4 is now working. Busybox is receiving
> intrs
> Swapped IPI sending to a full 64-bit write and APIC writes to msr
> regs.
>
> kern/arch/x86/Kbuild | 1 +
> kern/arch/x86/apic.c | 34 ++++++++-------
> kern/arch/x86/apic.h | 105
> ++++++++++++++++++++++++-----------------------
> kern/arch/x86/apic9.c | 174
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------
> kern/arch/x86/ioapic.c | 34 ++++++++++++---
> kern/arch/x86/ioapic.h | 3 +-
> kern/arch/x86/iommu.c | 178
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> kern/arch/x86/iommu.h | 105
> +++++++++++++++++++++++++++++++++++++++++++++++
> kern/arch/x86/mp.c | 4 +-
> kern/arch/x86/pmap64.c | 7 +++-
> kern/arch/x86/ros/mmu64.h | 7 ++--
> kern/arch/x86/smp_boot.c | 6 ++-
> kern/arch/x86/time.c | 4 +-
> kern/arch/x86/trap.c | 30 ++++++++++++++
> kern/arch/x86/trapentry64.S | 3 +-
> kern/arch/x86/vmm/intel/vmx.c | 9 +++-
> tests/vmm/vmrunkernel.c | 43 ++++++++++++-------
> 17 files changed, 611 insertions(+), 136 deletions(-)
> create mode 100644 kern/arch/x86/iommu.c
> create mode 100644 kern/arch/x86/iommu.h
>
>
> https://github.com/GanShun/akaros/compare/0b10f30b9b9b18f0e45390231dbdaf7b045fbd5b...dbdd541935111c8d418c77f83ddb885528768b89
>
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