Commit 0a2a59d3 authored by Xudong Hao's avatar Xudong Hao Committed by Gleb Natapov
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qemu-kvm/pci-assign: 64 bits bar emulation 



Enable 64 bits bar emulation.

Test pass with the current seabios which already support 64bit pci bars.

Signed-off-by: default avatarXudong Hao <xudong.hao@intel.com>
Reviewed-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarGleb Natapov <gleb@redhat.com>
parent f28558d3

hw/kvm/pci-assign.c

+10 −4
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ 
#define IORESOURCE_IRQ      0x00000400

#define IORESOURCE_DMA      0x00000800

#define IORESOURCE_PREFETCH 0x00002000  /* No side effects */

#define IORESOURCE_MEM_64   0x00100000



//#define DEVICE_ASSIGNMENT_DEBUG
@@ -442,9 +443,13 @@ static int assigned_dev_register_regions(PCIRegion *io_regions, 


        /* handle memory io regions */

        if (cur_region->type & IORESOURCE_MEM) {

            int t = cur_region->type & IORESOURCE_PREFETCH

                ? PCI_BASE_ADDRESS_MEM_PREFETCH

                : PCI_BASE_ADDRESS_SPACE_MEMORY;

            int t = PCI_BASE_ADDRESS_SPACE_MEMORY;

            if (cur_region->type & IORESOURCE_PREFETCH) {

                t |= PCI_BASE_ADDRESS_MEM_PREFETCH;

            }

            if (cur_region->type & IORESOURCE_MEM_64) {

                t |= PCI_BASE_ADDRESS_MEM_TYPE_64;

            }



            /* map physical memory */

            pci_dev->v_addrs[i].u.r_virtbase = mmap(NULL, cur_region->size,
@@ -632,7 +637,8 @@ again: 
        rp->valid = 0;

        rp->resource_fd = -1;

        size = end - start + 1;

        flags &= IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH;

        flags &= IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH

                 | IORESOURCE_MEM_64;

        if (size == 0 || (flags & ~IORESOURCE_PREFETCH) == 0) {

            continue;

        }