Introduce struct hv_memory_intercept_message, which is used when issuing
memory intercepts to a Hyper-V VSM guest.
Signed-off-by: Nicolas Saenz Julienne <nsaenz@xxxxxxxxxx>
---
arch/x86/include/asm/hyperv-tlfs.h | 76 ++++++++++++++++++++++++++++++
1 file changed, 76 insertions(+)
diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h
index af594aa65307..d3d74fde6da1 100644
--- a/arch/x86/include/asm/hyperv-tlfs.h
+++ b/arch/x86/include/asm/hyperv-tlfs.h
@@ -799,6 +799,82 @@ struct hv_get_vp_from_apic_id_in {
u32 apic_ids[];
} __packed;
+
+/* struct hv_intercept_header::access_type_mask */
+#define HV_INTERCEPT_ACCESS_MASK_NONE 0
+#define HV_INTERCEPT_ACCESS_MASK_READ 1
+#define HV_INTERCEPT_ACCESS_MASK_WRITE 2
+#define HV_INTERCEPT_ACCESS_MASK_EXECUTE 4
+
+/* struct hv_intercept_exception::cache_type */
+#define HV_X64_CACHE_TYPE_UNCACHED 0
+#define HV_X64_CACHE_TYPE_WRITECOMBINING 1
+#define HV_X64_CACHE_TYPE_WRITETHROUGH 4
+#define HV_X64_CACHE_TYPE_WRITEPROTECTED 5
+#define HV_X64_CACHE_TYPE_WRITEBACK 6
+
+/* Intecept message header */
+struct hv_intercept_header {
+ __u32 vp_index;
+ __u8 instruction_length;
+#define HV_INTERCEPT_ACCESS_READ 0
+#define HV_INTERCEPT_ACCESS_WRITE 1
+#define HV_INTERCEPT_ACCESS_EXECUTE 2
+ __u8 access_type_mask;
+ union {
+ __u16 as_u16;
+ struct {
+ __u16 cpl:2;
+ __u16 cr0_pe:1;
+ __u16 cr0_am:1;
+ __u16 efer_lma:1;
+ __u16 debug_active:1;
+ __u16 interruption_pending:1;
+ __u16 reserved:9;
+ };
+ } exec_state;
+ struct hv_x64_segment_register cs;
+ __u64 rip;
+ __u64 rflags;
+} __packed;
+
+union hv_x64_memory_access_info {
+ __u8 as_u8;
+ struct {
+ __u8 gva_valid:1;
+ __u8 _reserved:7;
+ };
+};
+
+struct hv_memory_intercept_message {
+ struct hv_intercept_header header;
+ __u32 cache_type;
+ __u8 instruction_byte_count;
+ union hv_x64_memory_access_info memory_access_info;
+ __u16 _reserved;
+ __u64 gva;
+ __u64 gpa;
+ __u8 instruction_bytes[16];
+ struct hv_x64_segment_register ds;
+ struct hv_x64_segment_register ss;
+ __u64 rax;
+ __u64 rcx;
+ __u64 rdx;
+ __u64 rbx;
+ __u64 rsp;
+ __u64 rbp;
+ __u64 rsi;
+ __u64 rdi;
+ __u64 r8;
+ __u64 r9;
+ __u64 r10;
+ __u64 r11;
+ __u64 r12;
+ __u64 r13;
+ __u64 r14;
+ __u64 r15;
+} __packed;
+
#include <asm-generic/hyperv-tlfs.h>
#endif
--
2.40.1
