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KVM: Don't require explicit indication of completion of mmio or pio

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It is illegal not to return from a pio or mmio request without completing
it, as mmio or pio is an atomic operation.  Therefore, we can simplify
the userspace interface by avoiding the completion indication.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity
2007-04-29 15:02:17 +03:00
parent e7df56e4a0
commit 02c8320972
2 changed files with 24 additions and 25 deletions
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5
include/linux/kvm.h
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@ -11,7 +11,7 @@
#include <asm/types.h>
#include <linux/ioctl.h>
#define KVM_API_VERSION 10
#define KVM_API_VERSION 11
/*
* Architectural interrupt line count, and the size of the bitmap needed
@ -58,9 +58,8 @@ enum kvm_exit_reason {
/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
struct kvm_run {
/* in */
__u32 io_completed; /* mmio/pio request completed */
__u8 request_interrupt_window;
__u8 padding1[3];
__u8 padding1[7];
/* out */
__u32 exit_reason;