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path: root/ioport.c
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* Unbreak large mem support by removing kqemuAnthony Liguori2009-08-241-24/+0
| | | | | | | | | | | | | | | | | | | | | | kqemu introduces a number of restrictions on the i386 target. The worst is that it prevents large memory from working in the default build. Furthermore, kqemu is fundamentally flawed in a number of ways. It relies on the TSC as a time source which will not be reliable on a multiple processor system in userspace. Since most modern processors are multicore, this severely limits the utility of kqemu. kvm is a viable alternative for people looking to accelerate qemu and has the benefit of being supported by the upstream Linux kernel. If someone can implement work arounds to remove the restrictions introduced by kqemu, I'm happy to avoid and/or revert this patch. N.B. kqemu will still function in the 0.11 series but this patch removes it from the 0.12 series. Paul, please Ack or Nack this patch. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* ioport: use uint{32, 16, 8}_t for ioport value and pio_addr_t for ioport ↵Isaku Yamahata2009-07-161-19/+18
| | | | | | | | | | | | | | | | | | | | | | | | address. Using int for cpu_{in, out}[bwl] is inconsistent with other part because for address or value, uintN_t is used by other qemu part. At least, softmmu, CPU{Read, Write}MemoryFunc, pci, target_phys_addr_t and the callers of cpu_{in, out}[bwl](). This patch removes the inconsistency. IO port has its own address space so define pio_addr_t as uint32_t because PCI io space width is 32bit. And use uint{32, 16, 8}_t for ioport value. Changing signedness of value might cause subtle issue. However only a suspicious caller is kvm_handle_io() which is ok. And other callers pass unsigned value in the first place. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Cc: Stuart Brady <sdbrady@ntlworld.com> Cc: Anthony Liguori <anthony@codemonkey.ws> Cc: Samuel Thibault <samuel.thibault@gnu.org> Cc: Tristan Gingold <gingold@adacore.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* ioport: remove some #ifdef DEBUG_UNUSED_IOPORT.Isaku Yamahata2009-07-161-12/+12
| | | | | | | | | | remove some #ifdef DEBUG_UNUSED_IOPORT in ioport.c and use PRIx32 where appropriate Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Cc: Anthony Liguori <anthony@codemonkey.ws> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* ioport: consolidate duplicated logic in register_ioport_{read, write}().Isaku Yamahata2009-07-091-14/+16
| | | | | Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* use constant IOPORTS_MASK instead of 0xffff.Isaku Yamahata2009-07-091-2/+2
| | | | | Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* split out ioport related stuffs from vl.c into ioport.c.Isaku Yamahata2009-07-091-0/+258
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>