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| author | Avi Kivity <avi@qumranet.com> | 2007-03-04 14:17:08 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-05-03 10:52:24 +0300 |
| commit | 8eb7d334bd8e693340ee198280f7d45035cdab8c (patch) | |
| tree | 438ec0b6b6c7714e436884576a3fdce84507813f /include/linux/kvm.h | |
| parent | b4e63f560beb187cffdaf706e534a1e2f9effb66 (diff) | |
| download | lwn-8eb7d334bd8e693340ee198280f7d45035cdab8c.tar.gz lwn-8eb7d334bd8e693340ee198280f7d45035cdab8c.zip | |
KVM: Fold kvm_run::exit_type into kvm_run::exit_reason
Currently, userspace is told about the nature of the last exit from the
guest using two fields, exit_type and exit_reason, where exit_type has
just two enumerations (and no need for more). So fold exit_type into
exit_reason, reducing the complexity of determining what really happened.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/linux/kvm.h')
| -rw-r--r-- | include/linux/kvm.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 9151ebfa22e9..57f47ef93829 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -11,7 +11,7 @@ #include <asm/types.h> #include <linux/ioctl.h> -#define KVM_API_VERSION 7 +#define KVM_API_VERSION 8 /* * Architectural interrupt line count, and the size of the bitmap needed @@ -34,9 +34,6 @@ struct kvm_memory_region { #define KVM_MEM_LOG_DIRTY_PAGES 1UL -#define KVM_EXIT_TYPE_FAIL_ENTRY 1 -#define KVM_EXIT_TYPE_VM_EXIT 2 - enum kvm_exit_reason { KVM_EXIT_UNKNOWN = 0, KVM_EXIT_EXCEPTION = 1, @@ -47,6 +44,7 @@ enum kvm_exit_reason { KVM_EXIT_MMIO = 6, KVM_EXIT_IRQ_WINDOW_OPEN = 7, KVM_EXIT_SHUTDOWN = 8, + KVM_EXIT_FAIL_ENTRY = 9, }; /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */ @@ -57,12 +55,11 @@ struct kvm_run { __u8 padding1[3]; /* out */ - __u32 exit_type; __u32 exit_reason; __u32 instruction_length; __u8 ready_for_interrupt_injection; __u8 if_flag; - __u16 padding2; + __u8 padding2[6]; /* in (pre_kvm_run), out (post_kvm_run) */ __u64 cr8; @@ -71,8 +68,12 @@ struct kvm_run { union { /* KVM_EXIT_UNKNOWN */ struct { - __u32 hardware_exit_reason; + __u64 hardware_exit_reason; } hw; + /* KVM_EXIT_FAIL_ENTRY */ + struct { + __u64 hardware_entry_failure_reason; + } fail_entry; /* KVM_EXIT_EXCEPTION */ struct { __u32 exception; |