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Subject[PATCH v4 12/15] pci: Mark MSI data shared
Date
From: Andi Kleen <ak@linux.intel.com>

In a TDX guest the MSI area must be shared with the host, so use
a shared mapping.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
---
drivers/pci/msi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 9232255c8515..c6cf1b756d74 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -682,7 +682,7 @@ static void __iomem *msix_map_region(struct pci_dev *dev, unsigned nr_entries)
table_offset &= PCI_MSIX_TABLE_OFFSET;
phys_addr = pci_resource_start(dev, bir) + table_offset;

- return ioremap(phys_addr, nr_entries * PCI_MSIX_ENTRY_SIZE);
+ return ioremap_shared(phys_addr, nr_entries * PCI_MSIX_ENTRY_SIZE);
}

static int msix_setup_entries(struct pci_dev *dev, void __iomem *base,
--
2.25.1
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