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amd_iommu: Use correct bitmask to set capability BAR

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AMD IOMMU provides the base address of control registers through
IVRS table and PCI capability. Since this base address is of 64 bit,
use 32 bits mask (instead of 16 bits) to set BAR low and high.

Fixes: d29a09ca68 ("hw/i386: Introduce AMD IOMMU")
Signed-off-by: Sairaj Kodilkar <sarunkod@amd.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Message-Id: <20250207045354.27329-3-sarunkod@amd.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Sairaj Kodilkar 2025-02-07 10:23:54 +05:30 • committed by Michael S. Tsirkin
parent 63dc0b8647
commit 3684717b74
2 changed files with 3 additions and 3 deletions
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4
hw/i386/amd_iommu.c
View file

@ -1593,9 +1593,9 @@ static void amdvi_pci_realize(PCIDevice *pdev, Error **errp)
/* reset AMDVI specific capabilities, all r/o */
pci_set_long(pdev->config + s->capab_offset, AMDVI_CAPAB_FEATURES);
pci_set_long(pdev->config + s->capab_offset + AMDVI_CAPAB_BAR_LOW,
AMDVI_BASE_ADDR & ~(0xffff0000));
AMDVI_BASE_ADDR & MAKE_64BIT_MASK(14, 18));
pci_set_long(pdev->config + s->capab_offset + AMDVI_CAPAB_BAR_HIGH,
(AMDVI_BASE_ADDR & ~(0xffff)) >> 16);
AMDVI_BASE_ADDR >> 32);
pci_set_long(pdev->config + s->capab_offset + AMDVI_CAPAB_RANGE,
0xff000000);
pci_set_long(pdev->config + s->capab_offset + AMDVI_CAPAB_MISC, 0);