On 02/04/2010 05:55 PM, Alexander Graf wrote:
Right now MMIO access can only happen for GPRs and is at most 32 bit wide. That's actually enough for almost all types of hardware out there.Unfortunately, the guest I was using used FPU writes to MMIO regions, so it ended up writing 64 bit MMIOs using FPRs and QPRs. So let's add code to handle those odd cases too. Signed-off-by: Alexander Graf<ag...@suse.de> --- arch/powerpc/include/asm/kvm.h | 7 +++++++ arch/powerpc/include/asm/kvm_ppc.h | 2 +- arch/powerpc/kvm/powerpc.c | 24 ++++++++++++++++++++++-- 3 files changed, 30 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/include/asm/kvm.h b/arch/powerpc/include/asm/kvm.h index 81f3b0b..548376c 100644 --- a/arch/powerpc/include/asm/kvm.h +++ b/arch/powerpc/include/asm/kvm.h @@ -77,4 +77,11 @@ struct kvm_debug_exit_arch { struct kvm_guest_debug_arch { }; +#define REG_MASK 0x001f +#define REG_EXT_MASK 0xffe0 +#define REG_GPR 0x0000 +#define REG_FPR 0x0020 +#define REG_QPR 0x0040 +#define REG_FQPR 0x0060
These names seem too generic to belong in asm/kvm.h - some application could use the same names. Please add a KVM_ prefix.
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