| Message ID | 1610729929-188490-2-git-send-email-john.garry@huawei.com (mailing list archive) |
|---|---|
| State | RFC |
| Headers | show |
| Series | Fix arm64 crash for accessing unmapped IO port regions (reboot) | expand |
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index fd172c41df90..2bcf55704bee 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -148,6 +148,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) #define arch_has_dev_port() (1) #define IO_SPACE_LIMIT (PCI_IO_SIZE - 1) #define PCI_IOBASE ((void __iomem *)PCI_IO_START) +#define IO_SPACE_BASE (0x10000) /* * String version of I/O memory access operations.
Introduce IO_SPACE_BASE, which is the base address of the IO port region. 0x10000 is chosen intentionally to exclude legacy ISA IO port address range. Signed-off-by: John Garry <john.garry@huawei.com> --- arch/arm64/include/asm/io.h | 1 + 1 file changed, 1 insertion(+)