Patchwork [2/2] qemu-kvm/pci-assign: 64 bits bar emulation

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Submitter Gleb Natapov
Date Dec. 26, 2012, 1:45 p.m.
Message ID <0a2a59d35cbabf63c91340a1c62038e3e60538c1.1356529549.git.gleb@redhat.com>
Download mbox | patch
Permalink /patch/208170/
State New
Headers show

Comments

Gleb Natapov - Dec. 26, 2012, 1:45 p.m.
From: Xudong Hao <xudong.hao@intel.com>

Enable 64 bits bar emulation.

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

Signed-off-by: Xudong Hao <xudong.hao@intel.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 hw/kvm/pci-assign.c |   14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

Patch

diff --git a/hw/kvm/pci-assign.c b/hw/kvm/pci-assign.c
index e80dad0..addc205 100644
--- a/hw/kvm/pci-assign.c
+++ b/hw/kvm/pci-assign.c
@@ -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;
         }