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| author | Jan Beulich | 2015-06-02 17:07:00 +0200 |
|---|---|---|
| committer | Stefano Stabellini | 2015-06-02 17:07:00 +0200 |
| commit | 7611dae8a69f0f1775ba1a9a942961c2aa10d88e (patch) | |
| tree | 5a010016cf807b0c8655bc68aca593dba016695d /include | |
| parent | xen: properly gate host writes of modified PCI CFG contents (diff) | |
| download | qemu-7611dae8a69f0f1775ba1a9a942961c2aa10d88e.tar.gz qemu-7611dae8a69f0f1775ba1a9a942961c2aa10d88e.tar.xz qemu-7611dae8a69f0f1775ba1a9a942961c2aa10d88e.zip | |
xen: don't allow guest to control MSI mask register
It's being used by the hypervisor. For now simply mimic a device not
capable of masking, and fully emulate any accesses a guest may issue
nevertheless as simple reads/writes without side effects.
This is XSA-129.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/pci/pci_regs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/hw/pci/pci_regs.h b/include/hw/pci/pci_regs.h index 56a404be6e..57e8c80c30 100644 --- a/include/hw/pci/pci_regs.h +++ b/include/hw/pci/pci_regs.h @@ -298,8 +298,10 @@ #define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */ #define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */ #define PCI_MSI_MASK_32 12 /* Mask bits register for 32-bit devices */ +#define PCI_MSI_PENDING_32 16 /* Pending bits register for 32-bit devices */ #define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */ #define PCI_MSI_MASK_64 16 /* Mask bits register for 64-bit devices */ +#define PCI_MSI_PENDING_64 20 /* Pending bits register for 32-bit devices */ /* MSI-X registers */ #define PCI_MSIX_FLAGS 2 |