[PATCH 07/13] KVM: SVM: Extend VMCB area for virtualized IBS registers

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From: Santosh Shukla <santosh.shukla@xxxxxxx>

VMCB state save is extended to hold guest values of the fetch and op
IBS registers.

Signed-off-by: Santosh Shukla <santosh.shukla@xxxxxxx>
Signed-off-by: Manali Shukla <manali.shukla@xxxxxxx>
---
 arch/x86/include/asm/svm.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index dee9fa91120b..4096d2f68770 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -346,6 +346,19 @@ struct vmcb_save_area {
 	u64 last_excp_to;
 	u8 reserved_0x298[72];
 	u64 spec_ctrl;		/* Guest version of SPEC_CTRL at 0x2E0 */
+	u8 reserved_0x2e8[904];
+	u8 lbr_stack_from_to[256];
+	u64 lbr_select;
+	u64 ibs_fetch_ctl;
+	u64 ibs_fetch_linear_addr;
+	u64 ibs_op_ctl;
+	u64 ibs_op_rip;
+	u64 ibs_op_data;
+	u64 ibs_op_data2;
+	u64 ibs_op_data3;
+	u64 ibs_dc_linear_addr;
+	u64 ibs_br_target;
+	u64 ibs_fetch_extd_ctl;
 } __packed;
 
 /* Save area definition for SEV-ES and SEV-SNP guests */
@@ -512,7 +525,7 @@ struct ghcb {
 } __packed;
 
 
-#define EXPECTED_VMCB_SAVE_AREA_SIZE		744
+#define EXPECTED_VMCB_SAVE_AREA_SIZE		1992
 #define EXPECTED_GHCB_SAVE_AREA_SIZE		1032
 #define EXPECTED_SEV_ES_SAVE_AREA_SIZE		1648
 #define EXPECTED_VMCB_CONTROL_AREA_SIZE		1024
@@ -537,6 +550,7 @@ static inline void __unused_size_checks(void)
 	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x180);
 	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x248);
 	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x298);
+	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x2e8);
 
 	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xc8);
 	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xcc);
-- 
2.34.1




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