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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-ia64-devel][PATCH][VTD] add head files and helper functions for VTD/ia64
On Tue, Oct 21, 2008 at 11:02:08AM +0800, Xu, Anthony wrote:
> Add head files and helper functions for VTD/ia64.
>
> Signed-off-by; Anthony Xu < anthony.xu@xxxxxxxxx >
>
>
> #Cset 18649 -- 18653 in xen-devel tree are needed.
> So you may need to pull from xen-devel, then apply this patch.
>
> Thanks,
> Anthony
>
>
>
This looks mostly good. Except hvm_{pci, isa}_xxx() should be
defined under xen/arch/ia64/vmx/.
thanks,
> Add head files and helper functions for VTD/ia64
>
> Signed-off-by; Anthony Xu < anthony.xu@xxxxxxxxx >
>
>
>
>
>
>
> diff -r fc74f8f81e1e xen/arch/ia64/linux-xen/irq_ia64.c
> --- a/xen/arch/ia64/linux-xen/irq_ia64.c Tue Oct 21 10:20:39 2008 +0800
> +++ b/xen/arch/ia64/linux-xen/irq_ia64.c Tue Oct 21 10:37:33 2008 +0800
> @@ -334,3 +334,49 @@
>
> writeq(ipi_data, ipi_addr);
> }
> +
> +void hvm_pci_intx_assert(
> + struct domain *d, unsigned int device, unsigned int intx)
> +{
> + struct hvm_irq *hvm_irq = &d->arch.hvm_domain.irq;
> + unsigned int gsi;
> +
> + ASSERT((device <= 31) && (intx <= 3));
> +
> + if ( __test_and_set_bit(device*4 + intx, &hvm_irq->pci_intx.i) )
> + return;
> + gsi = hvm_pci_intx_gsi(device, intx);
> + if ( ++hvm_irq->gsi_assert_count[gsi] == 1 ){
> + viosapic_set_irq(d, gsi, 1);
> + }
> +}
> +
> +void hvm_pci_intx_deassert(
> + struct domain *d, unsigned int device, unsigned int intx)
> +{
> + struct hvm_irq *hvm_irq = &d->arch.hvm_domain.irq;
> + unsigned int gsi;
> +
> + ASSERT((device <= 31) && (intx <= 3));
> +
> + if ( !__test_and_clear_bit(device*4 + intx, &hvm_irq->pci_intx.i) )
> + return;
> +
> + gsi = hvm_pci_intx_gsi(device, intx);
> +
> + if (--hvm_irq->gsi_assert_count[gsi] == 0)
> + viosapic_set_irq(d, gsi, 0);
> +}
> +
> +void hvm_isa_irq_assert(
> + struct domain *d, unsigned int isa_irq)
> +{
> + /* dummy */
> +}
> +
> +
> +void hvm_isa_irq_deassert(
> + struct domain *d, unsigned int isa_irq)
> +{
> + /* dummy */
> +}
> diff -r fc74f8f81e1e xen/arch/ia64/vmx/viosapic.c
> --- a/xen/arch/ia64/vmx/viosapic.c Tue Oct 21 10:20:39 2008 +0800
> +++ b/xen/arch/ia64/vmx/viosapic.c Tue Oct 21 10:37:33 2008 +0800
> @@ -314,10 +314,6 @@
> out:
> spin_unlock(&viosapic->lock);
> }
> -
> -#define hvm_pci_intx_gsi(dev, intx) \
> - (((((dev) << 2) + ((dev) >> 3) + (intx)) & 31) + 16)
> -
>
> void viosapic_set_pci_irq(struct domain *d, int device, int intx, int level)
> {
> diff -r fc74f8f81e1e xen/arch/ia64/xen/mm.c
> --- a/xen/arch/ia64/xen/mm.c Tue Oct 21 10:20:39 2008 +0800
> +++ b/xen/arch/ia64/xen/mm.c Tue Oct 21 10:37:33 2008 +0800
> @@ -3414,18 +3414,6 @@
> __xencomm_mark_dirty(current->domain, addr, len);
> }
>
> -int iommu_map_page(struct domain *d, unsigned long gfn, unsigned long mfn)
> -{
> - /* STUB to compile */
> - return -ENOSYS;
> -}
> -
> -int iommu_unmap_page(struct domain *d, unsigned long gfn)
> -{
> - /* STUB to compile */
> - return -ENOSYS;
> -}
> -
> /*
> * Local variables:
> * mode: C
> diff -r fc74f8f81e1e xen/arch/ia64/xen/xensetup.c
> --- a/xen/arch/ia64/xen/xensetup.c Tue Oct 21 10:20:39 2008 +0800
> +++ b/xen/arch/ia64/xen/xensetup.c Tue Oct 21 10:37:33 2008 +0800
> @@ -740,3 +740,15 @@
> }
> }
>
> +int xen_in_range(paddr_t start, paddr_t end)
> +{
> + start = max_t(paddr_t, start, xen_pstart);
> + end = min_t(paddr_t, end, xen_pstart + XENHEAP_DEFAULT_SIZE);
> +
> + return start < end;
> +}
> +
> +int tboot_in_range(paddr_t start, paddr_t end)
> +{
> + return 0;
> +}
> diff -r fc74f8f81e1e xen/include/asm-ia64/domain.h
> --- a/xen/include/asm-ia64/domain.h Tue Oct 21 10:20:39 2008 +0800
> +++ b/xen/include/asm-ia64/domain.h Tue Oct 21 10:37:33 2008 +0800
> @@ -42,6 +42,8 @@
> /* Cleanly crash the current domain with a message. */
> extern void panic_domain(struct pt_regs *, const char *, ...)
> __attribute__ ((noreturn, format (printf, 2, 3)));
> +
> +#define has_arch_pdevs(d) (!list_empty(&(d)->arch.pdev_list))
>
> struct mm_struct {
> volatile pgd_t * pgd;
> @@ -166,6 +168,7 @@
> unsigned char rid_bits; /* number of virtual rid bits (default:
> 18) */
> int breakimm; /* The imm value for hypercalls. */
>
> + struct list_head pdev_list;
> struct virtual_platform_def vmx_platform;
> #define hvm_domain vmx_platform /* platform defs are not vmx specific */
>
> diff -r fc74f8f81e1e xen/include/asm-ia64/linux-xen/asm/iosapic.h
> --- a/xen/include/asm-ia64/linux-xen/asm/iosapic.h Tue Oct 21 10:20:39
> 2008 +0800
> +++ b/xen/include/asm-ia64/linux-xen/asm/iosapic.h Tue Oct 21 10:37:33
> 2008 +0800
> @@ -175,5 +175,8 @@
> extern unsigned long ia64_xen_vector[];
> #endif /* XEN */
>
> +#define IO_APIC_BASE(idx) ((unsigned int *)iosapic_lists[idx].addr)
> +#define IO_APIC_ID(idx) (iosapic_lists[idx].id)
> +
> # endif /* !__ASSEMBLY__ */
> #endif /* __ASM_IA64_IOSAPIC_H */
> diff -r fc74f8f81e1e xen/include/asm-ia64/linux/asm/hw_irq.h
> --- a/xen/include/asm-ia64/linux/asm/hw_irq.h Tue Oct 21 10:20:39 2008 +0800
> +++ b/xen/include/asm-ia64/linux/asm/hw_irq.h Tue Oct 21 10:37:33 2008 +0800
> @@ -124,13 +124,6 @@
> return irq_desc + irq;
> }
>
> -/* Extract the IA-64 vector that corresponds to IRQ. */
> -static inline ia64_vector
> -irq_to_vector (int irq)
> -{
> - return (ia64_vector) irq;
> -}
> -
> /*
> * Convert the local IA-64 vector to the corresponding irq number. This
> translation is
> * done in the context of the interrupt domain that the currently executing
> CPU belongs
> diff -r fc74f8f81e1e xen/include/asm-ia64/vmx_platform.h
> --- a/xen/include/asm-ia64/vmx_platform.h Tue Oct 21 10:20:39 2008 +0800
> +++ b/xen/include/asm-ia64/vmx_platform.h Tue Oct 21 10:37:33 2008 +0800
> @@ -21,8 +21,10 @@
>
> #include <public/xen.h>
> #include <public/hvm/params.h>
> +#include <asm/hvm/irq.h>
> #include <asm/viosapic.h>
> #include <asm/hvm/vacpi.h>
> +#include <xen/hvm/iommu.h>
>
> struct vmx_ioreq_page {
> spinlock_t lock;
> @@ -41,6 +43,9 @@
> /* One IOSAPIC now... */
> struct viosapic viosapic;
> struct vacpi vacpi;
> + /* Pass-throgh VT-d */
> + struct hvm_irq irq;
> + struct hvm_iommu hvm_iommu;
> } vir_plat_t;
>
> static inline int __fls(uint32_t word)
>
>
--
yamahata
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