Author: grehan
Date: Sun Nov 29 00:54:13 2020
New Revision: 368135
URL: https://svnweb.freebsd.org/changeset/base/368135
Log:
MFC r368047
Remove manual instruction encodings for VMLOAD, VMRUN, and VMSAVE.
Modified:
stable/12/sys/amd64/vmm/amd/svm_support.S
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/amd64/vmm/amd/svm_support.S
==============================================================================
--- stable/12/sys/amd64/vmm/amd/svm_support.S Sun Nov 29 00:49:14 2020
(r368134)
+++ stable/12/sys/amd64/vmm/amd/svm_support.S Sun Nov 29 00:54:13 2020
(r368135)
@@ -39,10 +39,6 @@
#define VENTER push %rbp ; mov %rsp,%rbp
#define VLEAVE pop %rbp
-#define VMLOAD .byte 0x0f, 0x01, 0xda
-#define VMRUN .byte 0x0f, 0x01, 0xd8
-#define VMSAVE .byte 0x0f, 0x01, 0xdb
-
/*
* svm_launch(uint64_t vmcb, struct svm_regctx *gctx, struct pcpu *pcpu)
* %rdi: physical address of VMCB
@@ -91,9 +87,9 @@ ENTRY(svm_launch)
movq SCTX_RDI(%rsi), %rdi
movq SCTX_RSI(%rsi), %rsi /* %rsi must be restored last */
- VMLOAD
- VMRUN
- VMSAVE
+ vmload %rax
+ vmrun %rax
+ vmsave %rax
pop %rax /* pop guest context pointer from the stack */
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