On 12/12/14 13:55, Peter Maydell wrote:
> On 9 December 2014 at 01:13, Laszlo Ersek wrote:
>> fw_cfg already supports exposure over MMIO (used in ppc/mac_newworld.c,
>> ppc/mac_oldworld.c, sparc/sun4m.c); we can easily add it to the "virt"
>> board.
>>
>> Because MMIO access is slow on ARM KVM, we
On 9 December 2014 at 01:13, Laszlo Ersek wrote:
> fw_cfg already supports exposure over MMIO (used in ppc/mac_newworld.c,
> ppc/mac_oldworld.c, sparc/sun4m.c); we can easily add it to the "virt"
> board.
>
> Because MMIO access is slow on ARM KVM, we enable the guest, with
> fw_cfg_init_data_memw
fw_cfg already supports exposure over MMIO (used in ppc/mac_newworld.c,
ppc/mac_oldworld.c, sparc/sun4m.c); we can easily add it to the "virt"
board.
Because MMIO access is slow on ARM KVM, we enable the guest, with
fw_cfg_init_data_memwidth(), to transfer up to 8 bytes with a single
access. This
