diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2022-11-25 02:26:05 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2022-12-06 00:22:33 +0300 |
| commit | b6d5fc3a5245c65f7c83440460a1566d09cc9038 (patch) | |
| tree | 6fb8a289f07a3253e51591e30df0422abab8436e /arch/x86/include/asm/msi.h | |
| parent | 15c72f824b32761696b1854500bb3dedccbbb45a (diff) | |
| download | linux-b6d5fc3a5245c65f7c83440460a1566d09cc9038.tar.xz | |
x86/apic/vector: Provide MSI parent domain
Enable MSI parent domain support in the x86 vector domain and fixup the
checks in the iommu implementations to check whether device::msi::domain is
the default MSI parent domain. That keeps the existing logic to protect
e.g. devices behind VMD working.
The interrupt remap PCI/MSI code still works because the underlying vector
domain still provides the same functionality.
None of the other x86 PCI/MSI, e.g. XEN and HyperV, implementations are
affected either. They still work the same way both at the low level and the
PCI/MSI implementations they provide.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232326.034672592@linutronix.de
Diffstat (limited to 'arch/x86/include/asm/msi.h')
| -rw-r--r-- | arch/x86/include/asm/msi.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msi.h b/arch/x86/include/asm/msi.h index d71c7e8b738d..770295887e56 100644 --- a/arch/x86/include/asm/msi.h +++ b/arch/x86/include/asm/msi.h @@ -62,4 +62,10 @@ typedef struct x86_msi_addr_hi { struct msi_msg; u32 x86_msi_msg_get_destid(struct msi_msg *msg, bool extid); +#define X86_VECTOR_MSI_FLAGS_SUPPORTED \ + (MSI_GENERIC_FLAGS_MASK | MSI_FLAG_PCI_MSIX) + +#define X86_VECTOR_MSI_FLAGS_REQUIRED \ + (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS) + #endif /* _ASM_X86_MSI_H */ |